| Acronym |
Definition |
| A |
| AASA | Airborne Atmospheric Science Office |
| ABI | Application Binary Interfaces |
| ABLE | Arctic Boundary Layer Experiment |
| ACA | Azimuth Control Assembly |
| ACCLAIM | Advanced Carbon and Climate Mission Concept |
| ACE | Aerosol Characterization Experiment |
| ACE | Aerosol/Cloud/Ecosystems Mission |
| ACM | Association of Computing Machinery |
| ACR | Active Cavity Radiometer |
| ACRF | Averaged Cloud Radiation Model |
| ACRIM | Active Cavity Radiometer Irradiance Monitor |
| ACS | Attitude Control System |
| ADC | Analog to Digital Converter |
| ADEOS | Advanced Earth Observing System |
| ADRIEX | Aerosol Direct Radiative Impact Experiment |
| ADM | Angular Distribution Model |
| ADP | Automated Data Processing |
| AEC | ARM Experiment Center |
| AES | Airborne Emission Spectrometer |
| AEGIS | Aerosol Global Interactions Satellite |
| AFWEX | ARM-FIRE Water Vapor Experiment |
| AGCM | Atmospheric General Circulation Model(s) |
| AGU | American Geophysical Union |
| AIAA | American Institute of Aeronautics and Astronautics |
| AirMISR | Airborne Multi-angle Imaging SpectroRadiometer |
| AIRS | Atmospheric Infrared Sounder |
| AIRS II | Alliance Icing Research Study II |
| AIT | Advanced Intelligent Tape |
| ALT | Altimeter |
| AMASS | Archival Management Storage Software |
| AMIP | Atmosphere Model Inter-comparison Project |
| AMMA | African Monsoon Multidisciplinary Analyses |
| AMRS | Advanced Microwave Scanning Radiometer |
| AMS | American Meteorological Society |
| AMSU | Advanced Microwave Sounding Unit |
| ANSI | American National Standards Institute |
| AOD | Aerosol Optical Depth |
| AOS | Acquisition Of Signal |
| AOT | Aerosol Optical Thickness |
| APC | American Power Conversion |
| APD | Aerosol Profile Data |
| API | Application Programming Interface |
| APGS | Automatic Product Generation System |
| APID | Application Identifier |
| APS | Aerosol Polarimetry Sensor |
| AQI | Air Quality Index |
| ARB | Aerosol Research Branch - 48" Lidar |
| ARC | Ames Research Center |
| ARCSS | Artic System Science |
| ARESE | ARM Enhanced Shortwave Experiment |
| ARM | Atmospheric Radiation Measurements |
| ARR | Assessment Response Report |
| ASAP | Advance Satellite Aviation-Weather Products |
| ASCAT | Advanced Scatterometer (ESA) |
| ASCENDS | Active Sensing of CO2 Emissions over
Nights, Days, and Seasons |
| ASCII | American Standard Code for Information Interchange |
| ASDC | Atmospheric Sciences Data Center |
| ASIC3 | Achieving Satellite Instrument Calibration
for Climate Change (ASIC3) Workshop |
| ASOS | Automated Surface Observing Sites |
| ASR | Aerosol Scattering Ratio |
| ASRC | Atmospheric Sciences Research Center |
| ASTER | Advanced Spaceborne Thermal Emission and
Reflection Radiometer |
| ASTEX | Atlantic Stratocumulus Transition Experiment |
| ASTR | Atmospheric Structures |
| AT | Along Track |
| ATBD | Algorithm Theoretical Basis Document |
| ATMS | Advanced Technology Microwave Sounder |
| ATOST | Atlantic-THORpex Observing System Test |
| ATReC | Atlantic THORpex Regional Campaign |
| AtSC | Atmospheric Sciences Competency |
| AUTH | Authentication Service, TCP/UDP port 113 |
| AVG | Monthly Regional Radiative Fluxes and Clouds |
| AVHRR | Advanced Very High Resolution Radiometer |
| AVS | AVS X image File |
| AWRP | Aviation Weather Research Program |
| AZA | Azimuth Angle |
| B |
| BAMS | Bulletin of the American Meteorological Society |
| BB | Broadband |
| BB | Blackbody |
| BCE | Before Current Era |
| BCU | Bench Check-out Unit |
| BDRF | BiDirectional Reflectance Functions |
| BDS | BiDirectional Scan |
| BDSD | BiDirectional Scan - Diagnostic |
| BDSF | BiDirectional Scan - Fixed Pattern |
| BDSG | BiDirectional Scan - Gimbal Error |
| BDSI | BiDirectional Scan - Interncal Calibration |
| BDSM | BiDirectional Scan - Memory Dump |
| BDSP | BiDirectional Scan - Processor Error |
| BDSS | BiDirectional Scan - Solar Calibration |
| BIE+ | Joint Bi-level Image experts Group File
interchange format |
| BIOS | Basic Input/Output System |
| BMP+ | Microsoft Windows bitmap image File |
| BMP24+ | Microsoft Windows 24-bit bitmap image File |
| BOA | Bottom of Atmosphere |
| BOL | Beginning of Life |
| BQCRP | Instrument Production ASCII QC Report |
| BRDF | Bidirectional Reflectance Distribution Function |
| BRIE | Best Regional Integral Estimate |
| BSA | Biaxial Scan Assembly |
| BSRN | Baseline Surface Radiation Network |
| BT | Brightness Temperature |
| BTD | Brightness Temperature Difference |
| BUT | Bus Utilization Table |
| C |
| CAC | Climate Analysis Center |
| CAD | CERES Archival Data |
| CADM | CERES Angular Distribution Model |
| CADU | Channel Access Data Unit (CCSDS) |
| CAFC | (Canadian) Cloud-Aerosol Feedbacks &
Climate (Network) |
| CAGEX | CERES/ARM/GEWEX |
| CALIOP | Cloud-Aerosol Lidar with Orthagonal Polarization |
| CALIPSO | Cloud-Aerosol Lidar and Infrared Pathfinder
Satellite Observations |
| CAM | Command Authorization Meeting (FOT) |
| CAMEX | Convection and Moisture Experiment |
| CAPES | Combined Active and Passive Environmental Sounder |
| CAT3-5 | Category 3, 4, or 5 (cabling) |
| CAVE | CERES ARM Validation Experiment |
| CBH | Cloud Base Height |
| CC | Configuration Code |
| CCB | Configuration Control Board |
| CCC | Count Conversion Coefficients |
| CCCma | Canadian Centre for Climate Modelling and Analyses |
| CCD | Charge-Coupled Device |
| CCDAS | Carbon Data Assimilation Systems |
| CCN | Cloud Condensation Nuclei |
| CCR | Configuration Change Request |
| CCSDS | Consultative Committee for Space Data Systems |
| CCSP | Climate Change Science Program |
| CD | Compact Disk |
| CDB | Chemistry and Dynamics Branch |
| CDF | Common Data Format |
| C&DH | Control and Data Handling |
| CDL | Cloud Detection Lidar |
| CDR | Circular Depolarization Ratio |
| CDR | Climate Data Record |
| CDRL | Contract Data Requirements List |
| CECIL | C Extended Command Interface Language |
| CEOS | Committee on Earth Observing Satellites |
| CEPEX | Central Equatorial Pacific Experiment |
| CER | CERES |
| CERES | Clouds and the Earth's Radiant Energy System |
| CERESlib | CERES (software) Library |
| CERT | CERT (Computer Emergency Response Team) |
| CFC | ChloroFluroCarbon |
| CFCAS | Canadian Foundation for Climate
and Atmospheric Sciences |
| CFD | Cloud Flux Product |
| CGM | Computer Graphics Metafile |
| CGCM | Coupled (ocean-atmosphere) General
Circulation Model |
| CGI | Common Gateway Interface |
| CI | Computer Information |
| CID | Cloud Imager Data |
| CIFEX | Clouds Indirect Effects Experiment |
| CIMSS | Cooperative Institute for Meterological
Satellite Studies |
| CIN | Convective Inhibition |
| CIO | Chief Information Officer |
| CIP | Current Icing Potential |
| CIRA | Cooperative Institute for Research in the Atmosphere |
| CLAES | Cryogenic Limb Array Etalon Spectrometer |
| CLAMS | Chesapeake Lighthouse and Aircraft
Measurements for Satellites |
| CLARREO | Climate Absolute Radiance and
Refractivity Observatory |
| CLAVR | Cloud Advanced Very High Resolution Radiometer |
| CLCW | Command Link Control Word (CCSDS) |
| CLS | Constrained Least Squares |
| CLTU | Command Link Transmission Unit (CCSDS) |
| CM | Cloud Mask |
| CM | Configuration Management |
| CMAQ | Community Multiscale Air Quality |
| CMDL | Climate Monitoring and Diagnostics Laboratory |
| CMIS | Conical-scanning Microwave Imager/Sounder |
| CMMI | Capability Maturity Model Integrated |
| CMOS | Complimentary Metal Oxide Semiconductor |
| CMYK | Raw cyan, magenta, yellow, and black bytes |
| CN | Condensation Nucleus |
| CNES | Centre National d'Etudes Spatiales (France) |
| CODINE | Computing in Distributed Network Envrionmens |
| COPRS | Cloud Optical Property Retrieval System |
| COSPAR | Committee on Space Research |
| COT | Cloud Optical Thickness |
| COTR | Contracting Officers Technical Representative |
| COTS | Commercial Off The Shelf |
| COVE | CERES Ocean Validation Experiment |
| CPR | Cloud Profiling Radar |
| CPU | Central Processing Unit |
| CR | Correlation Radiometer |
| CRF | Cloud Radiative Forcing |
| CRH | Clear Reflectance History |
| CRHF | Cloud Radiative Heat Forcing |
| CrIS | Cross-track Infrared Sounder |
| CRM | Cloud Resolving Model |
| CRS | Clouds and Radiative Swath |
| CRSB | Clouds and Radiative Swath, Binary |
| CRSVB | Clouds and Radiative Swath, Validation Binary |
| CRYSTAL | Cirrus Regional Study of Tropical Anvils
and Cirrus Layers |
| CSO | Chief Security Official |
| CSOC | Consolidated Space Operations Contract |
| CSS | Cascading Sytle Sheet |
| CTBL | Cloud-Topped Boundary Layer |
| CTCU | Central Telemetry Control Unit (CCSDS) |
| CTIU | Command and Telemetry Interface Unit |
| CTM | Chemical Transport Models |
| CUT | Coordinated Universal Time |
| CVCDU | Coded Virtual Channel Data Unit (CCSDS) |
| CVP | Cloud Validation Product |
| CVS | Concurrent Versions System |
| CW | Cable Wrap |
| CWV | Columnar Water Vapor |
| CZCS | Coastal Zone Color Scanner |
| D |
| DAA | Designated Approval Authority |
| DAAC | Distributed Active Archive Center |
| DAC | Digital to Analog Converter |
| DAO | Data Assimilation Office |
| DAP | Data Acquisition microProcessor |
| DARPA | efense Advanced Research Projects Agency |
| DAS | Data Assimilation System |
| DB | DataBase |
| DBI | DataBase Interface (module) |
| DCA | Data Acquisition Converter assembly |
| DCC | Deep Convective Clouds |
| DCF | Direct Climate Forcing |
| DCN | Document Change Notice |
| DCR | Double Corrected Radiances |
| DCX+ | ZSoft IBM PC multi-page Paintbrush File |
| DDB | Daily Database (ERBE) |
| DDF | Data Distribution Facility |
| DDI | Downwelling Diffuse Irradiance |
| DEM | Digital Elevation Model |
| DESDynl | Deformation, Ecosystem Structure and Dynamics of Ice |
| DFD | Data Flow Diagram |
| DFRC | Dryden Flight Research Center |
| DHCP | Dynamic Host Configuration Protocol |
| DI | Direct Integration |
| DIAL | Differential Absorption Lidar |
| DIB | Microsoft Windows bitmap image File |
| DICOM | Medical image File |
| DLF | Direct Longwave Flux |
| DLT | Digital Linear Tape |
| dLW | Delta Longwave (UnFiltered Radiances) |
| DM | Data Management |
| DM4 | Daily, Monthly, and S-4 (ERBE processor) |
| DMA | Defense Mapping Agency |
| DMA | Direct Memory Access |
| DMS | Data Management System |
| DMSP | Defense Meteorological Satellite Program |
| DMSS | Distributed Mass Storage System |
| DMT | Data Management Team |
| DNS | Domain Name Server |
| DNSI | Direct-Normal Solar Irradiance |
| DOD | Department of Defense |
| DOE | Department of Energy |
| DPC | Data Products Catalog |
| DRE | Direct Radiative Effect |
| DRL | Document Release List |
| DRT | Daytime Retrieval Technique |
| DSC | Deep Space Calibration |
| DSC | Directed Scattering Coefficients |
| DSRT | Daytime Snow Retrieval Technique |
| DTD | Document Type Definitions |
| DX | Data Explorer |
| E |
| EADM | ERBE-Like Albedo Directional Model |
| EEQUATE | European Aqua Thermodynamic Experiment |
| EBBR | Energy Balance Bowen Ratio |
| EBCDIC | Extended Binary Coded Decimal Interchange Format |
| EBnet | EOSDIS Backbone Network |
| ECA | Elevation Control Assembly |
| ECDL | External Cavity Diode Laser |
| ECI | Earth-Centered Interial |
| ECLIPS | Experimental Cloud Lidar Pilot Study |
| ECN | Equipment Control Number |
| ECMWF | European Centre for Medium Range
Weather Forecasting |
| ECR | Earth-Centered Rotating |
| ECS | EOSDIS Core System |
| EDDB | ERBE-Like Daily Database Product |
| EDG | EOS Data Gateway |
| EDOS | EOS Data Operations System |
| EDR | Environmental Data Records |
| EGS | European Geophysical Society |
| EGT | EOSDIS Ground Terminal |
| EMOS | EOS Mission Operations System |
| EMTSA | ERBE-Like Monthly Time/Space Averaging |
| ENSO | El Nino-Southern Oscillation |
| ENVISAT | Environmental Satellite |
| EOC | EOS Operations Center |
| EOF | Empirical Orthogonal Function |
| EOL | End of Life |
| EOPS | ERBE Operational Processing System |
| EOS | Earth Observing System |
| EOSDIS | Earth Observing System Data and
Information System |
| EOS AM | EOS Morning Crossing Mission (Renamed Terra) |
| EOS PM | EOS Afternoon Crossing Mission |
| EPA | Environmental Protection Agency |
| EPDF | Encapsulated Portable Document Format |
| EPGS | EOS Polar Ground Station |
| EPHANC | Ephemeris and Ancillary |
| EPI | Adobe Encapsulated PostScript Interchange Format |
| EPIC | Eastern Pacific Investigation of Climate |
| EPS | EUMETSAT Polar System |
| EPS | Adobe Encapsulated PostScript File |
| EPS2 | Adobe Level II Encapsulated PostScript File |
| EPSF | Adobe Encapsulated PostScript File |
| EPSI | Adobe Encapsulated PostScript Interchange Format |
| EPT | Adobe Encapsulated PostScript Interchange Format
with TIFF preview |
| EP-TOMS | Earth Probe - Total Ozone Mapping Spectrometer |
| ERB | Earth Radiation Budget |
| ERBE | Earth Radiation Budget Experiment |
| ERBElib | ERBE (software) Library |
| ERBS | Earth Radiation Budget Satellite |
| ERBS | Earth Radiation Budget Sensor |
| ERF | Emergency Response Facility (Help Desk) |
| EROS | Earth Resources Observation System |
| ERPS | EOS Real-time Processing System |
| ERS-1 | European Research Satellite-1 |
| ES4 | ERBE-Like S4 Monthly Science |
| ES8 | ERBE-Like S8 Instanteous Science |
| ESA | European Space Agency |
| ESA | Earth Sensor Assembly |
| ESDIS | Earth Science Data and Information System |
| ESE | Earth Science Enterprise |
| ESMF | Earth System Modeling Framework |
| ESRB | European Surface Radiation Budget |
| ESRI | Environmental Systems Research Institute |
| ESRIN | European Space Research Institute |
| ESSP | Earth System Science Pathfinder |
| ESTEC | European Space Research and Technology Centre |
| ETL | NOAA Environmental Technology Laboratory |
| EUG | European Union of Geoscience |
| EUMET | European Meteorological Services |
| EuMetSat | European Meteorological Satellite (Organization) |
| F |
| FACE | Florida Area Cirrus Experiment |
| FAPS | Fixed Azimuth Plane Scan |
| FAQ | Frequently Asked Questions |
| FASTOZ | Fast response Ozone Instrument |
| FCC | Fractional Cloud Cover |
| FDD | Flight Dynamics Division (GSFC) |
| FDDI | Fiber Distributed Data Interface |
| FDF | Flight Dynamics Facility (GSFC) |
| FFT | Fast Fourier Transform |
| FIF | File Information Form |
| FIG | TransFig Image Format |
| FIP | Forecast Icing Potential |
| FIRE | First ISCCP Regional Experiment |
| FIRSC | Far Infrared Sensor for Cirrus |
| FIRST | Far-Infrared Spectroscopy of the Troposphere |
| FITS | Flexible Image Transport System |
| FLASHflux | Fast Longwave and SHortwave Fluxes |
| FLRT | Flexible, Longwave, Radiative Transfer |
| fLW | Filtered Longwave (Radiances) |
| FM | Flight Model |
| FNMOC | Fleet Numerical Meteorological
Oceanographic Center |
| FOT | Flight Operations Team |
| FOV | Field-of-View |
| FOVL | Field-of-View Limiter |
| FPX | FlashPix Format |
| FSW | Monthly Single Satellite Fluxes and Clouds
(Flux and clouds regional SWath) |
| fSW | Filtered Shortwave (Radiances) |
| FTIR | Fourier Transform Infrared Radiometer |
| fTOT | Filtered Total (Radiances) |
| FTE | Full Time Equivalent |
| FTM | Flight Test Model |
| FTP | File Transfer Protocol |
| FTS | Fourier Transform Spectrometer |
| fWN | Filtered Window (Radiances) |
| FZL | Freezing Level |
| G |
| GAC | Global Area Coverage |
| GACM | Global Atmospheric Composition Mission |
| GAMS | Gas and Aerosol Measurement Sensor |
| GAP | Gridded Analysis Product |
| GB | Gigabyte |
| GBAD | Ground Based Attitude Determination |
| GCC | GNU Compiler Collection |
| GCIP | GEWEX Continental-Phase International Project |
| GCM | General Circulation/Climate Model |
| GPCP | Global Precipitation Climatology Project |
| GCOS | Global Climate Observation System |
| GCSS | Global Cloud System Study |
| GDAS | Goddard Data Assimulation System |
| GDB | GNU Project Debugger |
| GEBA | Global Energy Balance Archive |
| GEISA | Gestion et Etude des Informations
Spectroscopiques Atmospheriques |
| GEO | Geostationary (Narrowband Radiances) |
| GEO-CAPE | GEO Coastal and Air Pollution Events Mission |
| GEORC | GEO Regression Coefficients |
| GEOS | Geodetic Earth Observation Satellite |
| GEOSS | Global Earth Observation System of Systems (EPA) |
| GeoTRACE | GEO Tropsheric Air Chemistry |
| GERB | Geostationary Earth Radiation Budget |
| GEWEX | Global Energy and Water Cycle Experiment |
| GFDL | Geophysical Fluid Dynamics Laboratory |
| GFE | Government Furnished Equipment |
| GGEO | Gridded Geostationary Narrowband Radiances |
| GHG | GreenHouse Gases |
| GHRC | Global Hydroloby Research Center |
| GIF | Graphics Interchange Format; 8-bit color |
| GIF87+ | Graphics Interchange Format; 8-bit color
(version 87a) |
| GIFTS | Geosynchronous Imaging Fourier
Transform Spectrometer |
| Gig-E | Gigabit Ethernet |
| GIIS | General Instrument Interface Specification |
| GIRD | General Interface Requirements Document |
| GISS | Goddard Institute for Space Studies |
| GIST | GERB Instrument Science Team |
| GLAS | Geoscience Laser Altimeter System |
| GLDAS | Global Land Data Assimilation System |
| GLIS | Global Land Information System |
| GLORY | (Earth Climate and Atmosperic Research Satellite) |
| GMAO | Global Modeling and Assimilation Office |
| GMI | Global Modeling Initiative |
| GMS | Geostationary Meteorological Satellite |
| GMT | Greenwich Mean Time |
| GNCC | Guidance Navigation and Control Center |
| GOES | Geostationary Operational Environmental Satellite |
| GOME | Global Ozone Monitoring Experiment |
| GPS | Global Positioning System |
| GPSOS | GPS Occultation Sensor |
| GPSRO | GPS Radio Occultation |
| GrADS | Grid Analysis and Display System |
| GRC | Glenn Research Center |
| GRAMS | Ground Radiation Measurement system |
| GRIB | Gridded Binary (format) |
| GSE | Ground Support Equipment |
| GSFC | Goddard Space Flight Center |
| GSWP2 | Globel Soil Wetness Project |
| GTE | Global Tropospheric Experiment |
| GUI | Graphical User Interface |
| GWTSA | Gamma-Weighed Two-Stream Approximation |
| H |
| HALOE | Halogen Occultation Experiment |
| HBTM | Hybrid Bispectral Threshold Method |
| HDF | Hierarchical Data Format |
| HDWL | Hybrid Doppler Wind Lidar |
| HES | Hyperspectral Environmental Sensor |
| H | High |
| HIRS | High Resolution Infared Radiation Scanner |
| HIS | High-Resolution Interferometer Spectrometer |
| HITRAN | High-resolution TRANsmission |
| HK | HouseKeeping (engineering data) |
| HL | High L atitude |
| HONER | Hemispherical Optimized New Radiometer |
| HPA | hectoPascal |
| HPGL | HP-GL plotter language |
| HR | Heating Rate |
| HRDL | High-resolution Doppler Lidar |
| HRPT | High Resolution Picture Transmission |
| HSFOVR | Hemispherical Field Of View Radiometer |
| HSRL | High Spectral Resolution Lidar |
| HTML | Hypertext Markup Language |
| HTTP | Hypertext Transfer Protocol |
| HySPAR | HypertSpectral Polarimeter for Aerosol Retrievals |
| I |
| ICA | Instrument Control Assembly |
| ICA | Independent Column Approximation |
| ICA | Independent Computing Architecture |
| ICARTT | International Consortium for Atmospheric Research
on Transport and Transformation |
| ICD | Interface Control Document |
| ICE | Integrated Cryptographic Engine |
| ICESat | Ice Cloud and land Elevation Satellite |
| ICL | Integrated Cloud Liquid |
| ICM | Internal Calibration Module |
| ICMP | Internet Control Message Protocol |
| ICS | Internal Calibration Subassembly (Module) |
| ICMP | Internet Control Message Protocol |
| ICP | Instrument Control microProcessor |
| ICRCCM | Intercomparison of Radiation Codes in Climate Models |
| ICS | Internal Calibration Source |
| ICS | Instrument Coordinate System |
| ICSBB | Internal Calibration Source - Black Body |
| IDL | Interactive Data Language |
| IEEE | Institute of Electrical and Electronics Engineers |
| IES | Instrument Earth Scans |
| IFA | Intensive Flux Array |
| IFM | Integrated Financial Management |
| IFO | Intensive Field Observation |
| IFOV | Instantaneous Field Of View |
| IG | Inspector General |
| IGAP | International Global Aerosol Program |
| IGARSS | International Geoscience and Remote Sensing Seminar |
| IGBP | International Geosphere Biosphere Programme |
| IGOS | Integrated Global Observing Strategy |
| IGR | Instanteous Geographic Region |
| IIR | Imaging Infrared Radiometer |
| ILAS | Improved Limb Atmospheric Sounder |
| ILRS | International Laser Ranging Service |
| ILW | Integrated Liquid Water |
| IMA | Interpolated Daily MODIS Aerosol |
| IMAP | Internet Message Access Protocol |
| IMET | Improved METerological System |
| IMPACT | Interactive Modeling Project for Atmospheric
Chemistry and Transport |
| IMS | Information Management System |
| IMSL | International Mathematics and Statistics Library |
| INDOEX | Indian Ocean Experiment |
| INSAT | Indian Satellite |
| INSTR | Instrument |
| INTEX-NA | Intercontinental Chemical Transport Experiment -
North America |
| I/O | Input/Output |
| ION | IDL On the Net |
| IOP | Intensive Observing Period |
| IOT | Instrument Operations Team |
| IP | Internet Protocol |
| IPC | International Pyrheliometer Comparison |
| IPCC | Intergovernmental Panel on Climate Change |
| IPD | Information Processing Division |
| IPO | Integrated Program Office |
| IR | Incident Response |
| IR | Infrared |
| IRF | Instantaneous Radiative Flux |
| IRIS | Infrared Interferometer Spectrometer |
| IRR | Imaging Infrared Radiometer |
| IRS | International Radiation Symposium |
| IRT | Infrared Thermometer |
| IRU | Inertial Reference Unit |
| ISA | Instruction Set Architecture |
| ISCCP | International Satellite Cloud Climatology Project |
| ISDN | Integrated Services Digital Network |
| ISO | International Standards Organization |
| ISO | Intraseasonal Oscillations |
| ISS | Integrated Sounding System |
| IST | Instrument Support Terminal |
| IT | Information Technology |
| IT | Instrument Team |
| ITAR | International Traffic in Arms Regulations |
| ITCZ | Intertropical Convergence Zone |
| ITS | Information Technology Security |
| ITSM | Information Technology Security Manager |
| ITS-90 | International Temperature Scale of 1990 |
| IVICS | Interactive Visual Image Classification System |
| IVT | Instrument Validation Tape |
| IWC | Ice Water Content |
| IWG | Instrument Working Group |
| IWP | Ice Water Path |
| IWV | Integrated Water Vapor |
| J K |
| JBIG+ | Joint Bi-level Image experts Group File
interchange Format |
| JCDL | Joint Conference on Digital Libraries |
| JD | Julian Day |
| JERS-1 | Japanese Earth Remote-sensing Satellite-1 |
| JMA | Japan Meteorological Agency |
| JPEG | Joint Photographic Experts Group JFIF Format |
| JPL | Jet Propulsion Laboratory |
| JSC | Johnson Space Center |
| KSC | Kennedy Space Center |
| L |
| LAII | Land-Atmosphere-Ice-Interactions |
| LAN | Local Area Network |
| LAPD | Langley Policy Directive |
| LaRA | Langley Remote Access |
| LaRC | Langley Research Center |
| LaRCNET | LaRC Network |
| LASE | Lidar Atmospheric Sensing Experiment |
| LaTIS | Langley TRMM Information System |
| LBC | Laser Beam Ceilometer |
| LBL | Line By Line |
| LBLRTM | Line-By-Line Radiative Transfer Model |
| LBTM | Layer Bispectral Threshold Method |
| LCL | Lifting Condensation Level |
| LDEF | Long Duration Exposure Facility |
| LDR | Linear Depolarization Ratio |
| LED | Light Emitting Diode |
| LEO | Low Earth Orbit |
| LIDAR | Light Detection and Ranging |
| LIRAD | Lidar/Radiometer |
| LIS | Lightning Imaging Senosr |
| LITE | Lidar In-space Technology Experiment |
| LM | Lower Middle |
| LMD | Laboraoire de Meteorologie Dynamique |
| LMS | Langley Management System |
| LMS | Least Median Squares |
| LN | Liquid Nitrogen |
| LOC | Lines of Code |
| LOS | Lines of Sight |
| LOS | Loss of Signal |
| L | Low |
| Lowtran 7 | Low-Resolution Transmittance
(Radiative Transfer Code) |
| LPLA | Langley Parameterized Longwave Algorithm |
| LPSA | Langley Parameterized Shortwave Algorithm |
| LRS | Low Rate Science |
| LST | Local Standard Time |
| LTE | Local Shermodynamic Equilibrium |
| LUT | Look Up Table |
| LW | Longwave (channel) |
| LWC | Liquid Water Content |
| LWP | Liquid Water Path |
| LWR | Longwave Radiation |
| LZPG | Level Zero Processing Facility |
