File File name File size File description no. (bytes) 1 ndp017.txt 6k Descriptive file (i.e., this document) 2 ndp017.dat 125k Original matrix data file of latitude, longitude, and ecosystem code 3 ndp017_g.dat.Z 1.6M Compressed flat data file of latitude, longitude, ecosystem code, ecosystem name, gridcell area, and carbon densities (medium, revised medium, minimum, and maximum) 4 ndp017.for 10k Fortran input statement for the original matrix data file 5 world.gif 27k Global ecosystem map 6 world.ps 1.5M Global ecosystem map 7 table.html 6k Table providing information on ecosystem types and carbon densities (medium, revised medium, minimum, and maximum) 8 olson-carbon.e00.Z 124k Compressed ARC/INFO export file for geographic information system (GIS) users 9 ndp017gis.doc 3k ASCII documentation for olson-carbon.e00.Z 10 med_carbon.gif 27k Map of revised medium carbon density by ecosystem complex 11 ndp017_convert.txt 20k Text file describing how ndp017_g.dat was created from ndp017.dat, includes SAS and FORTRAN code.
In the table below, minimum, medium, and maximum carbon densities were taken from Table 5 in
Olson et al. (1983). The
Color-Id | Ecosystem complexes | Gridcell count (0.5°) | Medium carbon density (Kg C/m2) | Revised medium carbon density (Kg C/m2) | Minimum carbon density (Kg C/m2) | Maximum carbon density (Kg C/m2) | Ecosystem codes |
1 | Conifers | 1719 | 16.00 | 13.00 | 12.0 | 20.0 | 22,27 |
2 | Tropical/Subtropical Broad-leaved Humid Forest | 3430 | 15.00 | 12.00 | 4.0 | 25.0 | 29,33,73 |
3 | Southern Taiga | 903 | 11.00 | 8.00 | 6.0 | 14.0 | 60,61 |
4 | Mid-Latitude Mixed Woods (Deciduous/Evergreen/Conifer) | 1589 | 10.00 | 7.00 | 6.0 | 14.0 | 23,24 |
5 | Mid-Latitude Temperate Broad-leaved Forest | 676 | 10.00 | 9.00 | 8.0 | 14.0 | 25,26 |
6 | Main Boreal Taiga | 3579 | 8.00 | 6.00 | 4.0 | 11.0 | 20,21 |
7 | Tropical/Subtropical Dry Forest and Woodland | 1584 | 7.00 | 6.00 | 5.0 | 9.0 | 32 |
8 | Second Growth Forest/Fields (Tropical/Subtropical Humid, Temperate/Boreal Forests) | 2232 | 5.00 | 4.00 | 4.0 | 8.0 | 56,57 |
9 | Semi-arid Woodland or Low Forest | 324 | 5.00 | 4.00 | 2.0 | 10.0 | 48 |
10 | Northern or Maritime Taiga, Subalpine | 3175 | 5.00 | 5.00 | 2.0 | 8.0 | 62 |
11 | Tropical Montane Complexes | 394 | 5.00 | 5.00 | 1.0 | 15.0 | 28 |
12 | Second Growth Field/Woods (Tropical/Temperate Woods, Fields/Grass/Scrub) | 1680 | 4.00 | 3.00 | 2.0 | 5.0 | 55,58 |
13 | Succulent and Thorn Woods and Scrub | 1350 | 4.00 | 3.00 | 2.0 | 6.0 | 59 |
14 | Mediterranean Types & Dry, Highland Woods | 1374 | 4.00 | 3.00 | 2.0 | 8.0 | 46,47 |
15 | Warm or Hot Wetlands | 546 | 3.00 | 2.00 | 1.0 | 6.0 | 45,72 |
16 | Paddyland | 697 | 3.00 | 3.00 | 2.0 | 4.0 | 36 |
17 | Tropical Savanna and Woodland (Interrupted Woods) | 2229 | 3.00 | 3.00 | 2.0 | 5.0 | 43 |
18 | Shore and Hinterland Complexes | 403 | 3.00 | 3.00 | 0.0 | 10.0 | 65,66,67,68 |
19 | Other Irrigated Dryland | 627 | 2.00 | 2.00 | 1.0 | 3.0 | 37,38,39 |
20 | Wooded Tundra | 1236 | 2.00 | 2.00 | 1.0 | 5.0 | 63 |
21 | Bog/Mire of Cool or Cold Climates | 576 | 2.00 | 2.00 | 1.0 | 6.0 | 44 |
22 | Heath and Moorland | 72 | 1.50 | 1.00 | 1.0 | 2.0 | 64 |
23 | Warm or Hot Shrub and Grassland (Marginal Lands) | 6400 | 1.30 | 0.90 | 0.5 | 3.0 | 41 |
24 | Cool or Cold Farms, Towns | 1477 | 1.00 | 0.70 | 0.4 | 2.0 | 30 |
25 | Warm/Hot Farms, Towns, Cool Grass/Scrub | 5553 | 1.00 | 0.80 | 0.6 | 2.0 | 31,40 |
26 | Tibetan Meadows, Siberian Highlands | 425 | 1.00 | 1.00 | 0.5 | 4.0 | 42 |
27 | Cool Semidesert Scrub | 930 | 0.60 | 0.60 | 0.3 | 1.0 | 52 |
28 | Tundra, Arctic Desert and Ice | 10561 | 0.50 | 0.50 | 0.0 | 1.2 | 53,54,69,70 |
29 | Non-Polar Desert and Semidesert, Sparse Vegetation | 4070 | 0.40 | 0.30 | 0.2 | 1.0 | 51,71,49 |
30 | Non-Polar Sand Desert | 1930 | 0.05 | 0.05 | 0.0 | 0.2 | 50 |
31 | Water Bodies | 172495 | 0.00 | 0.00 | 0.0 | 0.0 | 0 |
32 | Antarctica | 24964 | 0.00 | 0.00 | 0.0 | 0.0 | 17 |
Variable Variable Variable Starting Ending Units Definition and comments type width column column LATITUDE Real 8 1 8 dd Latitude, decimal degrees (center of grid cell) LONGITUDE Real 9 12 20 dd Longitude, decimal degrees (center of grid cell) ECOSYSTEM Integer 2 24 25 n/a Numeric code representing ecosystem CODE complex (see world.gif) ECOSYSTEM Character 16 29 44 n/a Ecosystem complex name COMPLEX LATITUDE Real 8 55 62 dd Latitude, decimal degrees (center of grid cell) LONGITUDE Real 9 66 74 dd Longitude, decimal degrees (center of grid cell) ECOSYSTEM Integer 2 84 86 n/a Numeric code representing ecosystem CODE complex (see world.gif) ECOSYSTEM Character 16 95 111 n/a Ecosystem complex name COMPLEX-----------------------------------------------------------------------------------------------
Variable Variable Variable Starting Ending Units Definition and comments type width column column LAT Real 6 1 6 dd Latitude, decimal degrees (center of grid cell) LON Real 7 8 14 dd Longitude, decimal degrees (center of grid cell) ECOCODE Integer 2 17 18 n/a Numeric code representing ecosystem complex (see world.gif) ECO Character 17 20 36 n/a Ecosystem complex name COMPLEXES AREA Integer 4 38 41 km2 Area of gridcell in square kilometers MEDCD Real 5 43 47 kg C/m2 Medium carbon density in kg of carbon per sq. meter RMEDCD Real 5 50 54 kg C/m2 Revised medium carbon density in kg of carbon per sq. meter MINCD Real 4 57 60 kg C/m2 Minimum carbon density in kg of carbon per sq. meter MAXCD Real 4 64 67 kg C/m2 Maximum carbon density in kg of carbon per sq. meter-----------------------------------------------------------------------------------------------
Start Item Data Display Data Decimal Definition and comments Col Name Width width Type* Places 1 AREA 4 12 F 3 Area in m2 (ARC/INFO system variable) 5 PERMIMETER 4 12 F 3 Permimeter in m (ARC/INFO system variable) 9 OLSON- CARBON# 4 5 B - ARC/INFO Internal polygon ID number 13 OLSON CARBON-ID 4 5 B - ARC/INFO External polygon ID number 17 GRID-CODE 4 5 B - Ecosystem Complex/Vegetation Code 21 SHADE 3 3 I - Carbon ranking and color identifier 24 MEAN-C 8 8 F 2 Medium carbon density (kg C/m2) 32 MEAS-C 8 8 F 2 Revised medium carbon density (kg C/m2) 40 MIN-C 8 8 F 2 Minimum carbon density (kg C/m2) 48 MAX-C 8 8 F 2 Maximum carbon density (kg C/m2) 56 NOTE 100 120 C - Description, ecosystem class *Data types are B-binary, C-character, F-float, I-integer, and N-numeric. F and N data types are real numbers with different precisions (precision is system dependent).--------------------------------------------------------------------------------------------