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  • cf-standard-names/trunk/src/cf-standard-name-table.xml

    r74 r68  
    11<?xml version="1.0"?> 
    22<standard_name_table xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="CFStandardNameTable-1.1.xsd"> 
    3   <version_number>10</version_number> 
    4   <last_modified>2008-10-21T12:26:52Z</last_modified> 
     3  <version_number>9</version_number> 
     4  <last_modified>2008-05-20T12:24:13Z</last_modified> 
    55  <institution>Program for Climate Model Diagnosis and Intercomparison</institution> 
    66  <contact>webmaster@pcmdi.llnl.gov</contact> 
    …… 
    8484    <description>Air temperature is the bulk temperature of the air, not the surface (skin) temperature. Air temperature excess and deficit are calculated relative to the air temperature threshold.</description> 
    8585  </entry> 
    86   <entry id="altimeter_range"> 
    87     <canonical_units>m</canonical_units> 
    88     <description>An altimeter operates by sending out a short pulse of radiation and measuring the time required for the pulse to return from the sea surface; this measurement is used to calculate the distance between the instrument and the sea surface.  That measurement is called the &quot;altimeter range&quot; and does not include any range corrections.</description> 
    89   </entry> 
    90   <entry id="altimeter_range_correction_due_to_dry_troposphere"> 
    91     <canonical_units>m</canonical_units> 
    92     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.   To apply the altimeter range correction it must be added to the quantity with standard name altimeter_range.  &quot;Correction_due_to_dry_troposphere&quot; means a correction for dry gases in the troposphere, i.e. excluding the effect of liquid water.  Additional altimeter range corrections are given by the quantities with standard names altimeter_range_correction_due_to_wet_troposphere, altimeter_range_correction_due_to_ionosphere, sea_surface_height_correction_due_to_air_pressure_at_low_frequency and sea_surface_height_correction_due_to_air_pressure_and_wind_at_high_frequency.</description> 
    93   </entry> 
    94   <entry id="altimeter_range_correction_due_to_ionosphere"> 
    95     <canonical_units>m</canonical_units> 
    96     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.   To apply the altimeter range correction it must be added to the quantity with standard name altimeter_range.  &quot;Correction_due_to_ionosphere&quot; means a correction for the atmosphere's electron content in the ionosphere. Additional altimeter range corrections are given by the quantities with standard names altimeter_range_correction_due_to_wet_troposphere, altimeter_range_correction_due_to_dry_troposphere, sea_surface_height_correction_due_to_air_pressure_at_low_frequency and sea_surface_height_correction_due_to_air_pressure_and_wind_at_high_frequency.</description> 
    97   </entry> 
    98   <entry id="altimeter_range_correction_due_to_wet_troposphere"> 
    99     <canonical_units>m</canonical_units> 
    100     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.   To apply the altimeter range correction it must be added to the quantity with standard name altimeter_range.  &quot;Correction_due_to_wet_troposphere&quot; means a correction for the effect of liquid water in the troposphere.  Additional altimeter range corrections are given by the quantities with standard names altimeter_range_correction_due_to_dry_troposphere, altimeter_range_correction_due_to_ionosphere, sea_surface_height_correction_due_to_air_pressure_at_low_frequency and sea_surface_height_correction_due_to_air_pressure_and_wind_at_high_frequency.</description> 
    101   </entry> 
    10286  <entry id="altitude"> 
    10387    <canonical_units>m</canonical_units> 
    …… 
    10892    <canonical_units>m</canonical_units> 
    10993    <description>Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level.</description> 
    110   </entry> 
    111   <entry id="angle_of_rotation_from_east_to_x"> 
    112     <canonical_units>degree</canonical_units> 
    113     <description>The quantity with standard name angle_of_rotation_from_east_to_x is the angle, anticlockwise reckoned positive, between due East and (dr/di)jk, where r(i,j,k) is the vector 3D position of the point with coordinate indices (i,j,k).  It could be used for rotating vector fields between model space and latitude-longitude space.</description> 
    114   </entry> 
    115   <entry id="angle_of_rotation_from_east_to_y"> 
    116   <canonical_units>degree</canonical_units> 
    117   <description>The quantity with standard name angle_of_rotation_from_east_to_y is the angle, anticlockwise reckoned positive, between due East and (dr/dj)ik, where r(i,j,k) is the vector 3D position of the point with coordinate indices (i,j,k).  It could be used for rotating vector fields between model space and latitude-longitude space.</description> 
    11894  </entry> 
    11995  <entry id="area_fraction"> 
    …… 
    364340    <description>Bolus velocity in an ocean model means the velocity due to a scheme representing eddy-induced effects which are not resolved on the grid scale of the model.  &quot;Northward&quot; indicates a vector component which is positive when directed northward (negative southward).</description> 
    365341  </entry> 
    366   <entry id="bolus_sea_water_x_velocity"> 
    367     <canonical_units>m s-1</canonical_units> 
    368     <description>A velocity is a vector quantity. &quot;x&quot; indicates a vector component along the grid x-axis, when this is not true longitude, positive with increasing x. Bolus velocity in an ocean model means the velocity due to a scheme representing eddy-induced effects which are not resolved on the grid scale of the model.  bolus_sea_water_x_velocity is used in some parameterisations of lateral diffusion in the ocean. </description> 
    369   </entry> 
    370   <entry id="bolus_sea_water_y_velocity"> 
    371     <canonical_units>m s-1</canonical_units> 
    372     <description>A velocity is a vector quantity. &quot;y&quot; indicates a vector component along the grid y-axis, when this is not true longitude, positive with increasing y. Bolus velocity in an ocean model means the velocity due to a scheme representing eddy-induced effects which are not resolved on the grid scale of the model. bolus_sea_water_y_velocity is used in some parameterisations of lateral diffusion in the ocean.</description> 
    373   </entry> 
    374342  <entry id="bolus_upward_sea_water_velocity"> 
    375343    <canonical_units>m s-1</canonical_units> 
    …… 
    406374    <description>&quot;Amount&quot; means mass per unit area. &quot;Water&quot; means water in all phases, including frozen i.e. ice and snow. &quot;Canopy&quot; means the plant or vegetation canopy. The canopy water is the water on the canopy.</description> 
    407375  </entry> 
    408   <entry id="cell_area"> 
    409     <canonical_units>m2</canonical_units> 
    410     <description>&quot;Cell_area&quot; is the horizontal area of a gridcell.</description> 
    411   </entry> 
    412376  <entry id="change_in_atmosphere_energy_content_due_to_change_in_sigma_coordinate_wrt_surface_pressure"> 
    413377    <canonical_units>J m-2</canonical_units> 
    …… 
    532496    <canonical_units>m</canonical_units> 
    533497    <description>Depth is the vertical distance below the surface.</description> 
    534   </entry> 
    535   <entry id="depth_at_maximum_upward_derivative_of_sea_water_potential_temperature"> 
    536     <canonical_units>m</canonical_units> 
    537     <description>This quantity, often used to indicate the &quot;thermocline depth&quot;, is the depth of the maximum vertical gradient of sea water potential temperature.  Depth is the vertical distance below the surface. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.</description> 
    538   </entry> 
    539   <entry id="depth_of_isosurface_of_sea_water_potential_temperature"> 
    540     <canonical_units>m</canonical_units> 
    541     <description>This quantity, sometimes called the &quot;isotherm depth&quot;, is the depth (if it exists) at which the sea water potential temperature equals some specified value. This value should be specified in a scalar coordinate variable. Depth is the vertical distance below the surface. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.</description> 
    542498  </entry> 
    543499  <entry id="dew_point_depression"> 
    …… 
    862818    <description>&quot;frozen_water&quot; means ice. &quot;Content&quot; indicates a quantity per unit area. &quot;Layer&quot; means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Quantities defined for a soil layer must have a vertical coordinate variable with boundaries indicating the extent of the layer(s).</description> 
    863819  </entry> 
    864   <entry id="geoid_height_above_reference_ellipsoid"> 
    865     <canonical_units>m</canonical_units> 
    866     <description>The geoid is a surface of constant geopotential with which mean sea level would coincide if the ocean were at rest. (The volume enclosed between the geoid and the sea floor equals the mean volume of water in the ocean.) In an ocean GCM the geoid is the surface of zero depth, or the rigid lid if the model uses that approximation.  A reference ellipsoid is a regular mathematical figure that approximates the irregular shape of the geoid. A number of reference ellipsoids are defined for use in the field of geodesy.</description> 
    867   </entry> 
    868820  <entry id="geopotential"> 
    869821    <canonical_units>m2 s-2</canonical_units> 
    …… 
    915867    <description>Flux correction is also called &quot;flux adjustment&quot;. A positive flux correction is downward i.e. added to the ocean. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    916868  </entry> 
    917   <entry id="heat_flux_into_sea_water_due_to_newtonian_relaxation"> 
    918     <canonical_units>W m-2</canonical_units> 
    919     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.  The heat_flux_into_sea_water_due_to_newtonian_relaxation is the heat flux resulting from the Newtonian relaxation of the sea surface temperature. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    920   </entry> 
    921869  <entry id="height"> 
    922870    <canonical_units>m</canonical_units> 
    923871    <amip>zh</amip> 
    924872    <description>Height is the vertical distance above the surface.</description> 
    925   </entry> 
    926   <entry id="height_above_reference_ellipsoid"> 
    927     <canonical_units>m</canonical_units> 
    928     <description>Height is the vertical distance above a surface. A reference ellipsoid is a mathematical figure that approximates the geoid. The geoid is a surface of constant geopotential with which mean sea level would coincide if the ocean were at rest. The ellipsoid is an approximation because the geoid is an irregular shape. A number of reference ellipsoids are defined for use in the field of geodesy.</description> 
    929873  </entry> 
    930874  <entry id="height_above_sea_floor"> 
    …… 
    960904    <canonical_units>K s</canonical_units> 
    961905    <description>&quot;integral_of_Y_wrt_X&quot; means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. &quot;wrt&quot; means with respect to. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. The air temperature excess is the air temperature minus the air temperature threshold. Its integral with respect to time is often called after its units of &quot;degree-days&quot;.</description> 
    962   </entry> 
    963   <entry id="integral_of_sea_water_potential_temperature_wrt_depth_expressed_as_heat_content"> 
    964     <canonical_units>J m-2</canonical_units> 
    965     <description>&quot;integral_of_Y_wrt_X&quot; means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds.  &quot;wrt&quot; means with respect to. &quot;expressed_as_heat_content&quot; means that this quantity is calculated as the (assumed constant) specific heat capacity times density of sea water multiplied by the integral, over the specified layer of the ocean, of the sea water potential temperature wrt depth.</description> 
    966906  </entry> 
    967907  <entry id="integral_of_sea_water_temperature_wrt_depth_in_ocean_layer"> 
    …… 
    12561196    <description>&quot;lwe&quot; means liquid water equivalent. &quot;Water&quot; means water in all phases. Evaporation is the conversion of liquid or solid into vapor. (The conversion of solid alone into vapor is called &quot;sublimation&quot;.)</description> 
    12571197  </entry> 
    1258   <entry id="magnitude_of_derivative_of_position_wrt_model_level_number"> 
    1259     <canonical_units>m</canonical_units> 
    1260     <description>The quantity with standard name magnitude_of_derivative_of_position_wrt_model_level_number (known in differential geometry as a &quot;scale factor&quot;) is | (dr/dk)ij|, where r(i,j,k) is the vector 3D position of the point with coordinate indices (i,j,k). It is a measure of the gridblock spacing in the z-direction.</description> 
    1261   </entry> 
    1262   <entry id="magnitude_of_derivative_of_position_wrt_x_coordinate_index"> 
    1263     <canonical_units>m</canonical_units> 
    1264     <description>The quantity with standard name magnitude_of_derivative_of_position_wrt_x_coordinate_index (known in differential geometry as a &quot;scale factor&quot;) is | (dr/di)jk|, where r(i,j,k) is the vector 3D position of the point with coordinate indices (i,j,k). It is a measure of the gridblock spacing in the x-direction.</description> 
    1265   </entry> 
    1266   <entry id="magnitude_of_derivative_of_position_wrt_y_coordinate_index"> 
    1267     <canonical_units>m</canonical_units> 
    1268     <description>The quantity with standard name magnitude_of_derivative_of_position_wrt_y_coordinate_index (known in differential geometry as a &quot;scale factor&quot;) is | (dr/dj)ik|, where r(i,j,k) is the vector 3D position of the point with coordinate indices (i,j,k). It is a measure of the gridblock spacing in the y-direction.</description> 
    1269   </entry> 
    12701198  <entry id="magnitude_of_surface_downward_stress"> 
    12711199    <canonical_units>Pa</canonical_units> 
    …… 
    14161344    <description>Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X).  &quot;Aerosol&quot; means the suspended liquid or solid particles in air (except cloud droplets).  Aerosol takes up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the aerosol.</description> 
    14171345  </entry> 
    1418   <entry id="minus_one_times_water_flux_into_sea_water_from_rivers"> 
    1419     <canonical_units>kg m-2 s-1</canonical_units> 
    1420     <description>The quantity minus_one_times_water_flux_into_sea_water_from_rivers is the quantity with standard name water_flux_into_sea_water_from_rivers multiplied by -1. &quot;Water&quot; means water in all phases. The water flux or volume transport into sea water from rivers is the inflow to the ocean, often applied to the surface in ocean models. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    1421   </entry> 
    14221346  <entry id="model_level_number"> 
    14231347    <canonical_units>1</canonical_units> 
    …… 
    14251349    <description>Model level number should be understood as equivalent to layer number.</description> 
    14261350  </entry> 
    1427   <entry id="model_level_number_at_base_of_ocean_mixed_layer_defined_by_sigma_theta"> 
    1428     <canonical_units> 1 </canonical_units> 
    1429     <description>The ocean mixed layer is the upper part of the ocean, regarded as being well-mixed. The base of the mixed layer defined by temperature, sigma, sigma_theta or vertical diffusivity is the level at which the quantity indicated differs from its surface value by a certain amount. The amount by which the quantity differs can be specified by a scalar coordinate variable. The quantity model_level_number_at_base_of_ocean_mixed_layer_defined_by_sigma_theta is sometimes referred to as the &quot;bowl index&quot;.</description> 
    1430   </entry> 
    14311351  <entry id="model_level_number_at_convective_cloud_base"> 
    14321352    <canonical_units>1</canonical_units> 
    …… 
    14361356    <canonical_units>1</canonical_units> 
    14371357    <description>cloud_top refers to the top of the highest cloud. Model level number should be understood as equivalent to layer number. Convective cloud is that produced by the convection schemes in an atmosphere model.</description> 
    1438   </entry> 
    1439   <entry id="model_level_number_at_sea_floor"> 
    1440     <canonical_units> 1 </canonical_units> 
    1441     <description>The quantity with standard name model_level_number_at_sea_floor is the depth of the ocean expressed in model levels. This could be a non-integer value because some ocean models use partial cells close to the sea floor.  For example, if this field were 23.4 at some location, it would mean the water column at that point comprised 23 full model levels plus 40% occupancy of the lowest (24th) gridcell.</description> 
    14421358  </entry> 
    14431359  <entry id="model_level_number_at_top_of_atmosphere_boundary_layer"> 
    …… 
    20731989    <description>The ocean mixed layer is the upper part of the ocean, regarded as being well-mixed. The base of the mixed layer defined by temperature, sigma or sigma_theta is the level at which the quantity indicated differs from its surface value by a certain amount.</description> 
    20741990  </entry> 
    2075   <entry id="ocean_mixed_layer_thickness_defined_by_vertical_tracer_diffusivity"> 
    2076     <canonical_units>m</canonical_units> 
    2077     <description>The ocean mixed layer is the upper part of the ocean, regarded as being well-mixed. The base of the mixed layer defined by temperature, sigma, sigma_theta, or vertical diffusivity is the level at which the quantity indicated differs from its surface value by a certain amount. The amount by which the quantity differs can be specified by a scalar coordinate variable.</description> 
    2078   </entry> 
    2079   <entry id="ocean_rigid_lid_pressure"> 
    2080     <canonical_units>N m-2</canonical_units> 
    2081     <description>&quot;Ocean rigid lid pressure&quot; means the pressure at the surface of an ocean model assuming that it is bounded above by a rigid lid.</description> 
    2082   </entry> 
    2083   <entry id="ocean_rigid_lid_pressure_expressed_as_sea_surface_height_above_geoid"> 
    2084     <canonical_units>m</canonical_units> 
    2085     <description>&quot;Ocean rigid lid pressure&quot; means the pressure at the surface of an ocean model assuming that it is bounded above by a rigid lid.</description> 
    2086   </entry> 
    20871991  <entry id="ocean_s_coordinate"> 
    20881992    <canonical_units>1</canonical_units> 
    …… 
    20921996    <canonical_units>1</canonical_units> 
    20931997    <description>See Appendix D of the CF convention for information about dimensionless vertical coordinates. Note that the ocean sigma coordinate is not the same quantity as sea water sigma (excess of density over 1000 kg m-3), for which there are various other standard names.</description> 
    2094   </entry> 
    2095   <entry id="ocean_vertical_diffusivity"> 
    2096     <canonical_units>m2 s-1</canonical_units> 
    2097     <description>&quot;Vertical diffusivity&quot; means the vertical component of diffusivity due to motion which is not resolved on the grid scale of the model.</description> 
    2098   </entry> 
    2099   <entry id="ocean_vertical_heat_diffusivity"> 
    2100     <canonical_units>m2 s-1</canonical_units> 
    2101     <description>&quot;Vertical heat diffusivity&quot; means the vertical component of the diffusivity of heat due to motion which is not resolved on the grid scale of the model.</description> 
    2102   </entry> 
    2103   <entry id="ocean_vertical_momentum_diffusivity"> 
    2104     <canonical_units>m2 s-1</canonical_units> 
    2105     <description>&quot;Vertical momentum diffusivity&quot; means the vertical component of the diffusivity of momentum due to motion which is not resolved on the grid scale of the model. </description> 
    2106   </entry> 
    2107   <entry id="ocean_vertical_momentum_diffusivity_due_to_convection"> 
    2108     <canonical_units>m2 s-1</canonical_units> 
    2109     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;Vertical momentum diffusivity&quot; means the vertical component of the diffusivity of momentum due to motion which is not resolved on the grid scale of the model. Convective mixing in the ocean is somtimes modelled as an enhanced diffusivity.</description> 
    2110   </entry> 
    2111   <entry id="ocean_vertical_salt_diffusivity"> 
    2112     <canonical_units>m2 s-1</canonical_units> 
    2113     <description>&quot;Vertical salt diffusivity&quot; means the vertical component of the diffusivity of salt due to motion which is not resolved on the grid scale of the model.</description> 
    2114   </entry> 
    2115   <entry id="ocean_vertical_tracer_diffusivity"> 
    2116     <canonical_units>m2 s-1</canonical_units> 
    2117     <description>&quot;Vertical tracer diffusivity&quot; means the vertical component of the diffusivity of tracers, i.e. heat and salinity, due to motion which is not resolved on the grid scale of the model.</description> 
    2118   </entry> 
    2119   <entry id="ocean_vertical_tracer_diffusivity_due_to_convection"> 
    2120     <canonical_units>m2 s-1</canonical_units> 
    2121     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;Vertical tracer diffusivity&quot; means the vertical component of the diffusivity of tracers, i.e. heat and salinity, due to motion which is not resolved on the grid scale of the model.  Convective mixing in the ocean is sometimes modelled as an enhanced diffusivity.</description> 
    2122   </entry> 
    2123   <entry id="ocean_vertical_tracer_diffusivity_due_to_wind_mixing"> 
    2124     <canonical_units>m2 s-1</canonical_units> 
    2125     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;Vertical tracer diffusivity&quot; means the vertical component of the diffusivity of tracers, i.e. heat and salinity, due to motion which is not resolved on the grid scale of the model.</description> 
    21261998  </entry> 
    21271999  <entry id="ocean_volume"> 
    …… 
    23792251    <description></description> 
    23802252  </entry> 
    2381   <entry id="richardson_number_in_sea_water"> 
    2382     <canonical_units> 1 </canonical_units> 
    2383     <description>Richardson number is a measure of dynamic stability and can be used to diagnose the existence of turbulent flow.  It is defined as the ratio of the buoyant suppression of turbulence (i.e. how statically stable or unstable the conditions are)  to the kinetic energy available to generate turbulence  in a shear flow.</description> 
    2384   </entry> 
    23852253  <entry id="root_depth"> 
    23862254    <canonical_units>m</canonical_units> 
    …… 
    24202288    <canonical_units>m</canonical_units> 
    24212289    <description>sea_level means mean sea level, which is close to the geoid in sea areas.</description> 
    2422   </entry> 
    2423   <entry id="sea_ice_albedo"> 
    2424     <canonical_units> 1 </canonical_units> 
    2425     <description>The albedo of sea ice.</description> 
    24262290  </entry> 
    24272291  <entry id="sea_ice_amount"> 
    …… 
    25052369    <description>sea_level means mean sea level, which is close to the geoid in sea areas. &quot;Sea surface height&quot; is a time-varying quantity. The standard name for the height of the sea surface above the geoid is sea_surface_height_above_geoid. The standard name for the height of the sea surface above the reference ellipsoid is sea_surface_height_above_reference_ellipsoid.</description> 
    25062370  </entry> 
    2507   <entry id="sea_surface_height_amplitude_due_to_earth_tide"> 
    2508     <canonical_units>m</canonical_units> 
    2509     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Tides are a significant contributor to the observed sea surface height; earth tide means the solid earth tide.</description> 
    2510   </entry> 
    2511   <entry id="sea_surface_height_amplitude_due_to_equilibrium_ocean_tide"> 
    2512     <canonical_units>m</canonical_units> 
    2513     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Tides are a significant contributor to the observed sea surface height; equilibrium ocean tide refers to the long period ocean tide.</description> 
    2514   </entry> 
    2515   <entry id="sea_surface_height_amplitude_due_to_geocentric_ocean_tide"> 
    2516     <canonical_units>m</canonical_units> 
    2517     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Tides are a significant contributor to the observed sea surface height; geocentric ocean tide means the sum total of ocean tide and load tide.</description> 
    2518   </entry> 
    2519   <entry id="sea_surface_height_amplitude_due_to_non_equilibrium_ocean_tide"> 
    2520     <canonical_units>m</canonical_units> 
    2521     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Tides are a significant contributor to the observed sea surface height; non equilibrium ocean tide refers to the long period ocean tide.</description> 
    2522   </entry> 
    2523   <entry id="sea_surface_height_amplitude_due_to_pole_tide"> 
    2524     <canonical_units>m</canonical_units> 
    2525     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Tides are a significant contributor to the observed sea surface height; the pole tide occurs due to variations in the earth's rotation.</description> 
    2526   </entry> 
    2527   <entry id="sea_surface_height_bias_due_to_sea_surface_roughness"> 
    2528     <canonical_units>m</canonical_units> 
    2529     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.  Altimeter pulses tend to be more strongly refelected by the troughs of sea surface waves than by the crests leading to a bias in the measured sea surface height. This quantity is commonly known as &quot;sea state bias&quot;.</description> 
    2530   </entry> 
    2531   <entry id="sea_surface_height_correction_due_to_air_pressure_at_low_frequency"> 
    2532     <canonical_units>m</canonical_units> 
    2533     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;Air pressure at low frequency&quot; means variations in air pressure with periods longer than 20 days. These give rise to corresponding variations in sea surface topography. The quantity sea_surface_height_correction_due_to_air_pressure_at_low_frequency is commonly called the &quot;inverted barometer effect&quot; and the correction should be applied by adding it to the quantity with standard name altimeter_range.  Additional altimeter range corrections are given by the quantities with standard names altimeter_range_correction_due_to_wet_troposphere, altimeter_range_correction_due_to_dry_troposphere, altimeter_range_correction_due_to_ionosphere and sea_surface_height_correction_due_to_air_pressure_and_wind_at_high_frequency.</description> 
    2534   </entry> 
    2535   <entry id="sea_surface_height_correction_due_to_air_pressure_and_wind_at_high_frequency"> 
    2536     <canonical_units>m</canonical_units> 
    2537     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;Air pressure and wind at high frequency&quot; means variations in air pressure with periods shorter  than 20 days. These give rise to corresponding variations in sea surface topography. The quantity sea_surface_height_correction_due_to_air_pressure_and_wind_at_high_frequency  should be applied by adding it to the quantity with standard name altimeter_range.  Additional altimeter range corrections are given by the quantities with standard names altimeter_range_correction_due_to_wet_troposphere, altimeter_range_correction_due_to_dry_troposphere, altimeter_range_correction_due_to_ionosphere and sea_surface_height_correction_due_to_air_pressure_at_low_frequency.</description> 
    2538   </entry> 
    25392371  <entry id="sea_surface_salinity"> 
    25402372    <canonical_units>1e-3</canonical_units> 
    …… 
    29392771    <description>The surface called &quot;surface&quot; means the lower boundary of the atmosphere. Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level.</description> 
    29402772  </entry> 
    2941   <entry id="surface_backwards_scattering_coefficient_of_radar_wave"> 
    2942     <canonical_units> 1 </canonical_units> 
    2943     <description>The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Scattering of radiation is its deflection from its incident path without loss of energy. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeding pi/2 radians. A scattering_angle should not be specified with this quantity.</description> 
    2944   </entry> 
    29452773  <entry id="surface_brightness_temperature"> 
    29462774    <canonical_units>K</canonical_units> 
    …… 
    39923820    <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;tendency_of_X&quot; means derivative of X with respect to time. &quot;Content&quot; indicates a quantity per unit area. &quot;Layer&quot; means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Potential energy is the sum of the gravitational potential energy relative to the geoid and the centripetal potential energy. (The geopotential is the specific potential energy.)</description> 
    39933821  </entry> 
    3994   <entry id="tendency_of_potential_energy_content_of_ocean_layer_due_to_convection"> 
    3995     <canonical_units>W m-2</canonical_units> 
    3996     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;tendency_of_X&quot; means derivative of X with respect to time. &quot;Content&quot; indicates a quantity per unit area. &quot;Layer&quot; means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Potential energy is the sum of the gravitational potential energy relative to the geoid and the centripetal potential energy. (The geopotential is the specific potential energy.)</description> 
    3997   </entry> 
    3998   <entry id="tendency_of_potential_energy_content_of_ocean_layer_due_to_diffusion "> 
    3999     <canonical_units>W m-2</canonical_units> 
    4000     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;tendency_of_X&quot; means derivative of X with respect to time. &quot;Content&quot; indicates a quantity per unit area. &quot;Layer&quot; means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Potential energy is the sum of the gravitational potential energy relative to the geoid and the centripetal potential energy. (The geopotential is the specific potential energy.)</description> 
    4001   </entry> 
    40023822  <entry id="tendency_of_sea_ice_area_fraction_due_to_dynamics"> 
    40033823    <canonical_units>s-1</canonical_units> 
    …… 
    43234143    <description>&quot;Eastward&quot; indicates a vector component which is positive when directed eastward (negative westward). &quot;Upward&quot; indicates a vector component which is positive when directed upward (negative downward). &quot;Upward eastward&quot; indicates the ZX component of a tensor. An upward eastward stress is an upward flux of eastward momentum, which accelerates the upper medium eastward and the lower medium westward.</description> 
    43244144  </entry> 
     4145  <entry id="upward_eliassen_palm_flux_in_air"> 
     4146    <canonical_units>m3 s-2</canonical_units> 
     4147    <description>&quot;Eliassen Palm flux&quot; is a widely used vector in the meridional plane, and the divergence of this flux appears as a forcing in the Transformed Eulerian mean formulation of the zonal mean zonal wind equation.  &quot;Upward&quot; indicates a vector component which is positive when directed upward (negative downward).</description> 
     4148  </entry> 
    43254149  <entry id="upward_eastward_momentum_flux_in_air_due_to_nonorographic_eastward_gravity_waves"> 
    43264150    <canonical_units>Pa</canonical_units> 
    …… 
    43354159    <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Upward" indicates a vector component which is positive when directed upward (negative downward).  "Eastward" indicates a vector component which is positive when directed eastward (negative westward).  "Upward eastward" indicates the ZX component of a tensor. An upward eastward momentum flux is an upward flux of eastward momentum, which accelerates the upper medium eastward and the lower medium westward.  Momentum flux is dimensionally equivalent to stress and pressure.  In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The total upward eastward momentum flux due to gravity waves is the sum of the fluxes due to orographic gravity waves and nonorographic waves. The total upward eastward momentum flux due to nonorographic gravity waves is the sum of the fluxes due to eastward and westward propagating waves. These quantities have the standard names upward_eastward_momentum_flux_in_air_due_to_nonorographic_eastward_gravity_waves and upward_eastward_momentum_flux_in_air_due_to_nonorographic_westward_gravity_waves, respectively.</description> 
    43364160  </entry> 
    4337   <entry id="upward_eliassen_palm_flux_in_air"> 
    4338     <canonical_units>m3 s-2</canonical_units> 
    4339     <description>&quot;Eliassen Palm flux&quot; is a widely used vector in the meridional plane, and the divergence of this flux appears as a forcing in the Transformed Eulerian mean formulation of the zonal mean zonal wind equation.  &quot;Upward&quot; indicates a vector component which is positive when directed upward (negative downward).</description> 
    4340   </entry> 
    43414161  <entry id="upward_heat_flux_at_ground_level_in_snow"> 
    43424162    <canonical_units>W m-2</canonical_units> 
    …… 
    44114231    <canonical_units>kg m-2</canonical_units> 
    44124232    <description>&quot;Content&quot; indicates a quantity per unit area. &quot;Vegetation&quot; means any plants e.g. trees, shrubs, grass.</description> 
    4413   </entry> 
    4414   <entry id="vertical_component_of_ocean_xy_tracer_diffusivity"> 
    4415     <canonical_units>m2 s-1</canonical_units> 
    4416     <description>The vertical_component_of_ocean_xy_tracer_diffusivity means the vertical component of the diffusivity of tracers in the ocean due to lateral mixing. This quantity could appear in formulations of lateral diffusivity in which &quot;lateral&quot; does not mean &quot;iso-level&quot;, e.g. it would not be used for isopycnal diffusivity. &quot;Tracer diffusivity&quot; means the diffusivity of heat and salinity due to motion which is not resolved on the grid scale of the model.</description> 
    4417   </entry> 
    4418   <entry id="virtual_salt_flux_into_sea_water"> 
    4419     <canonical_units>kg m-2 s-1</canonical_units> 
    4420     <description>The virtual_salt_flux_into_sea_water is the salt flux that would have the same effect on the sea surface salinity as the water_flux_out_of_sea_water. It includes the effects of precipitation, evaporation, river outflow, sea-ice and any water flux relaxation(s) and correction(s) that may have been applied. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    4421   </entry> 
    4422   <entry id="virtual_salt_flux_into_sea_water_due_to_newtonian_relaxation"> 
    4423     <canonical_units>kg m-2 s-1</canonical_units> 
    4424     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The virtual_salt_flux_into_sea_water_due_to_newtonian_relaxation is the salt flux that would have the same effect on the sea surface salinity as water_flux_out_of_sea_water_due_to_newtonian_relaxation. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    44254233  </entry> 
    44264234  <entry id="virtual_temperature"> 
    …… 
    45414349    <description>&quot;Water&quot; means water in all phases. Flux correction is also called &quot;flux adjustment&quot;. A positive flux correction is downward i.e. added to the ocean. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    45424350  </entry> 
    4543   <entry id="water_flux_into_sea_water"> 
     4351  <entry id="water_flux_into_ocean"> 
    45444352    <canonical_units>kg m-2 s-1</canonical_units> 
    45454353    <amip>wfo</amip> 
    4546     <description>&quot;Water&quot; means water in all phases. The water flux into sea water is the freshwater entering as a result of precipitation, evaporation, river inflow, sea ice effects and water flux correction (if applied). In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    4547   </entry> 
    4548   <entry id="water_flux_into_sea_water_from_rivers"> 
    4549     <canonical_units>kg m-2 s-1</canonical_units> 
    4550     <description>&quot;Water&quot; means water in all phases. The water flux or volume transport into sea water from rivers is the inflow to the ocean, often applied to the surface in ocean models. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    4551   </entry> 
    4552   <entry id="water_flux_into_sea_water_without_flux_correction"> 
    4553     <canonical_units>kg m-2 s-1</canonical_units> 
    4554     <description>Water means water in all phases. The water_flux_into_sea_water_without_flux_correction  is the freshwater entering as a result of precipitation, evaporation, river inflow and sea ice effects.  The total water flux including any flux relaxation(s) or correction(s) is described by the standard name water_flux_into_sea_water.  In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    4555   </entry> 
    4556   <entry id="water_flux_out_of_sea_ice_and_sea_water"> 
    4557     <canonical_units>kg m-2 s-1</canonical_units> 
    4558     <description>&quot;Water&quot; means water in all phases.  The water_flux_out_of_sea_ice_and_sea_water is the freshwater  leaving the ocean as a result of precipitation, evaporation, river outflow and any water flux relaxation(s) and correction(s) that may have been applied. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    4559   </entry> 
    4560   <entry id="water_flux_out_of_sea_water"> 
    4561     <canonical_units>kg m-2 s-1</canonical_units> 
    4562     <description>The quantity water_flux_out_of_sea_water is the quantity with  standard name water_flux_into_sea_water multiplied by -1. &quot;Water&quot; means water in all phases. The water flux out of sea water is the freshwater leaving as a result of precipitation, evaporation, river outflow, sea-ice and any water flux relaxation(s) and correction(s) that may have been applied. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    4563   </entry> 
    4564   <entry id="water_flux_out_of_sea_water_due_to_newtonian_relaxation"> 
    4565     <canonical_units>kg m-2 s-1</canonical_units> 
    4566     <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The water_flux_out_of_sea_water_due_to_newtonian_relaxation is the freshwater leaving as a result of the Newtonian relaxation of the sea surface salinity. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    4567    </entry> 
    4568    <entry id="water_flux_out_of_sea_water_due_to_sea_ice_thermodynamics"> 
    4569      <canonical_units>kg m-2 s-1</canonical_units> 
    4570      <description>The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. &quot;Water&quot; means water in all phases. The water flux out of sea water is the freshwater leaving the sea water.  &quot;Sea ice thermodynamics&quot; refers to the addition or subtraction of sea ice mass due to surface and basal fluxes. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
     4354    <description>&quot;Water&quot; means water in all phases. The water flux into the ocean is the freshwater entering the sea water as a result of precipitation, evaporation, river inflow, sea ice effects and water flux correction (if applied). In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
     4355  </entry> 
     4356  <entry id="water_flux_into_ocean_from_rivers"> 
     4357    <canonical_units>kg m-2 s-1</canonical_units> 
     4358    <description>&quot;Water&quot; means water in all phases. The water flux or volume transport into the ocean from rivers is the inflow to the ocean, often applied to the surface in ocean models. In accordance with common usage in geophysical disciplines, &quot;flux&quot; implies per unit area, called &quot;flux density&quot; in physics.</description> 
    45714359  </entry> 
    45724360  <entry id="water_potential_evaporation_amount"> 
    …… 
    45964384    <description>Water vapor saturation deficit is the difference between the saturation water vapor pressure and the actual water vapor pressure.</description> 
    45974385  </entry> 
    4598   <entry id="water_volume_transport_into_sea_water_from_rivers"> 
     4386  <entry id="water_volume_transport_into_ocean_from_rivers"> 
    45994387    <canonical_units>m3 s-1</canonical_units> 
    4600     <description>&quot;Water&quot; means water in all phases. The water flux or volume transport into sea water from rivers is the inflow to the ocean, often applied to the surface in ocean models.</description> 
     4388    <description>&quot;Water&quot; means water in all phases. The water flux or volume transport into the ocean from rivers is the inflow to the ocean, often applied to the surface in ocean models.</description> 
    46014389  </entry> 
    46024390  <entry id="wave_frequency"> 
    …… 
    46134401    <description>Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) In meteorological reports, the direction of the wind vector is usually (but not always) given as the direction from which it is blowing (wind_from_direction) (westerly, northerly, etc.). In other contexts, such as atmospheric modelling, it is often natural to give the direction in the usual manner of vectors as the heading or the direction to which it is blowing (wind_to_direction) (eastward, southward, etc.) &quot;from_direction&quot; is used in the construction X_from_direction and indicates the direction from which the velocity vector of X is coming.</description> 
    46144402  </entry> 
    4615   <entry id="wind_mixing_energy_flux_into_sea_water"> 
     4403  <entry id="wind_mixing_energy_flux_into_ocean"> 
    46164404    <canonical_units>W m-2</canonical_units> 
    46174405    <grib>126</grib> 
    …… 
    46364424    <description>Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) In meteorological reports, the direction of the wind vector is usually (but not always) given as the direction from which it is blowing (wind_from_direction) (westerly, northerly, etc.). In other contexts, such as atmospheric modelling, it is often natural to give the direction in the usual manner of vectors as the heading or the direction to which it is blowing (wind_to_direction) (eastward, southward, etc.) &quot;to_direction&quot; is used in the construction X_to_direction and indicates the direction towards which the velocity vector of X is headed.</description> 
    46374425  </entry> 
    4638   <entry id="x_derivative_of_ocean_rigid_lid_pressure"> 
    4639     <canonical_units>N m-3</canonical_units> 
    4640     <description>&quot;component_derivative_of_X &quot; means the derivative of X with respect to distance in the component direction, which may be northward, southward, eastward, westward, x or y. The last two indicate derivatives along the axes of the grid, in the case where they are not true longitude and latitude. x_derivative_of_ocean_rigid_lid_pressure means (d/dx) of the ocean surface pressure, as derived by a rigid lid approximation, keeping the other horizontal coordinate (y, presumably) constant.</description> 
    4641   </entry> 
    46424426  <entry id="x_wind"> 
    46434427    <canonical_units>m s-1</canonical_units> 
    46444428    <description>&quot;x&quot; indicates a vector component along the grid x-axis, when this is not true longitude, positive with increasing x. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)</description> 
    4645   </entry> 
    4646   <entry id="y_derivative_of_ocean_rigid_lid_pressure"> 
    4647     <canonical_units>N m-3</canonical_units> 
    4648     <description>&quot;component_derivative_of_X &quot; means the derivative of X with respect to distance in the component direction, which may be northward, southward, eastward, westward, x or y. The last two indicate derivatives along the axes of the grid, in the case where they are not true longitude and latitude. y_derivative_of_ocean_rigid_lid_pressure means (d/dy) of the ocean surface pressure, as derived by a rigid lid approximation, keeping the other horizontal coordinate (x, presumably) constant.</description> 
    46494429  </entry> 
    46504430  <entry id="y_wind"> 
    …… 
    48334613    <entry_id>upward_eastward_momentum_flux_in_air_due_to_orographic_gravity_waves</entry_id> 
    48344614  </alias> 
    4835   <alias id="water_flux_into_ocean"> 
    4836     <entry_id>water_flux_into_sea_water</entry_id> 
    4837   </alias> 
    4838   <alias id="water_flux_into_ocean_from_rivers"> 
    4839     <entry_id>water_flux_into_sea_water_from_rivers</entry_id> 
    4840   </alias> 
    4841   <alias id="water_volume_transport_into_ocean_from_rivers"> 
    4842     <entry_id>water_volume_transport_into_sea_water_from_rivers</entry_id> 
    4843   </alias> 
    4844   <alias id="wind_mixing_energy_flux_into_ocean"> 
    4845     <entry_id>wind_mixing_energy_flux_into_sea_water</entry_id> 
    4846   </alias> 
    48474615</standard_name_table>