ABLE

Arctic Boundary Layer Expedition

AGU

American Geophysical Union

AIRI

All-India Rainfall Index

AMIP

Atmospheric Model Inter-Comparison Project

ARCSS

Arctic systems science

ARM

Atmospheric Radiation Measurement program

ARS*

USDA Agricultural Research Service

ASTER

Advanced Spaceborne Thermal Emission and Reflection Radiometer

AVHRR

Advanced Very High Resolution Radiometer

AVIRIS

Airborne Visible/Infrared Imaging Spectrometer

BAHC

Biological Aspects of the Hydrological Cycle Core Project

BASC

Board on Atmospheric Sciences and Climate

BOREAS

Boreal Ecosystem-Atmosphere Study

BSD

Board on Sustainable Development

CCM2

Community Climate Model

CCN

cloud condensation nuclei

CENR

Committee on Environment and Natural Resources

CERES

Cloud and the Earth's Radiant Energy System (NASA)

CFCs

chlorofluorocarbons

CGCR

Committee on Global Change Research

CHAMMP

Computer Hardware and Advanced Mathematics and Model Physics

CIPEC

Center for the Study of Institutions, Population, and Environmental Change

CLIMAP

Climate Mapping, Analysis, and Prediction Group

CLIVAR

Program for Climate Variability and Predictability

CMIP

Coupled Model Intercomparison Project

COADS

Comprehensive Ocean-Atmosphere Data Set

CODMAC

Committee on Data Management and Computation

COFUR

costs of filling user requests

COHMAP

Cooperative Holocene Mapping Project

COWL

cold oceans and warm land

CRREL*

DOD Cold Regions Research and Engineering Laboratory

CSREES*

USDA Cooperative State Research, Education, and Extension Service

CTD

conductivity-temperature-depth

CZCS

coastal zone color scanner

DAAC

Data Acquisition and Archive Center

DIC

dissolved inorganic carbon

DIVERSITAS

IUBS-SCOPE-UNESCO Programme on Biodiversity

DMS

dimethyl sulfide

DMSP

Defense Meteorological Satellite Program

DOC

dissolved organic carbon

DOD*

U.S. Department of Defense

DOE*

U.S. Department of Energy

DOI*

U.S. Department of the Interior

ECMWF

European Centre for Medium-Range Weather Forecasting

ENSO

El Niño-Southern Oscillation

EOS

Earth Observing System

EOSDIS

EOS Data and Information System

EPA*

U.S. Environmental Protection Agency

ERS*

USDA Economic Research Service

ESA

European Space Agency

ES*

NASA Earth Science

ESSC

Earth System Sciences Committee

EUMETSAT

European Organization for the Exploitation of Meteorological Satellites

EVE

Equilibrium Vegetation Ecology model

FANGIO

Feedback Analysis of GCMs and in Observations

FIFE

First ISLSCP Field Experiment

FS*

USDA Forest Service

FUNCEME

Fundação Cearense de Meteorologia e Recursos Hídricos (Ceará's Foundation for Meteorology and Hydrological Resources)

GAIM

Global Analysis, Interpretation, and Modelling Program

GCIP

Global Energy Water-Cycle Experiment Continental-Scale International Project

GCM

general circulation model

GCOS

Global Climate Observing System

GCTE

Global Change and Terrestrial Ecosystems Core Project

GEOSECS

Geochemical Ocean Sections Study

GEWEX

Global Energy and Water Cycle Experiment

GFDL

Geophysical Fluid Dynamics Laboratory

GIS

geographic information system

GISP2

Greenland Ice Sheet Project Two

GLOBEC

Global Ocean Ecosystem Dynamics

GLOCHANT

Global Changes in the Antarctic

GLOSS

Global Sea Level Observing System

GOALS

Global Ocean-Atmosphere-Land Surface program

GRIP

Greenland Ice Core Project

GTS

Global Telecommunication System

HALOE

Halogen Occultation Experiment

HAPEX

Hydrological and Atmospheric Pilot Experiment

HCDN

Hydroclimatic Data Network

HCN

Historical Climate Network

HSCT

High-Speed Civil Transport

HHS*

U.S. Department of Health and Human Services

ICSU

International Council of Scientific Unions

IGAC

International Global Atmospheric Chemistry program

IGBP

International Geosphere-Biosphere Programme

IHDP

International Human Dimensions Programme

IMAGES

Intermediate Model for Global and Annual Evolution of Species

IPCC

Intergovernmental Panel on Climate Change

IR

infrared

IRI

International Research Institute for Climate Prediction

ISLSCP

International Satellite Land Surface Climatology Project

ITCZ

Intertropical Convergence Zone

IUBS

International Union of Biological Sciences

JGOFS

Joint Global Ocean Flux Study

LANDSAT

Land Remote Sensing Satellite

LBA

Large-Scale Biosphere-Atmosphere Experiment

LIA

Little Ice Age

LIDAR

light detection and ranging instrument

LMER

Land Margin Ecosystem Research

LOICZ

Land-Ocean Interactions in the Coastal Zone

LSP

land surface parameterization

LTER

Long-Term Ecological Research program

LUCC

land use cover change

MBL

marine boundary layer

METOP

meteorological operational

MetOp

Meteorological Operational (Satellite)

MINK

Missouri-Illinois-Nebraska-Kansas

MISR

Multi-Angle Imaging Spectroradiometer

MLS

microwave limb sounder

MODIS

Moderate-Resolution Imaging Spectroradiometer

MTM-SVD

Multi-Taper Method/Singular Value Decomposition

MWP

Medieval Warm Period

NADP/NTN

National Acid Deposition Program/National Trends Network

NADW

North Atlantic deep water

NAFTA

North American Free Trade Agreement

NAO

North Atlantic Oscillation

NAS

National Academy of Sciences

NASA*

National Aeronautics and Space Administration

NASM*

SI National Air and Space Museum

NCAR

National Center for Atmospheric Research

NCDC

National Climatic Data Center

NCEP

National Center for Environmental Prediction

NDSC

Network for Detection of Stratospheric Change

NEE

net ecosystem exchange

NICHD

National Institute of Child Health and Human Development

NIEHS*

National Institute of Environmental Health Sciences

NIST*

National Institute of Science and Technology

NMNH*

SI National Museum of Natural History

NOAA*

National Oceanic and Atmospheric Administration

NPO

North Pacific Oscillation

NPOESS

National Polar-Orbiting Operational Environmental Satellite System

NPP

net primary productivity

NRC

National Research Council

NRCS*

USDA Natural Resources Conservation Service

NSF*

National Science Foundation

NSTC

National Science and Technology Council

NWS

National Weather Service

NZP*

SI National Zoological Park

OBER*

DOE Office of Biological and Environmental Research

OCMIP

Ocean Carbon Model Intercomparison Project

OCS

carbonyl sulfide

OMB

Office of Management and Budget

ONR*

DOD Office of Naval Research

ORD*

EPA Office of Research and Development

OSTP

Office of Science and Technology Policy

OSSE

Observing System Simulation Experiments

OTTER

Oregon Transect Ecological Research

PAGES

past global changes

PAN

peroxyacetylnitrate

PAR

photosynthetically active radiation

PBL

planetary boundary layer

PCI

Polar Circulation Index

PILPS

Project for Intercomparison of Land Surface Parameterization Schemes

PMIP

Paleoclimate Model Intercomparison Project

PNA

Pacific-North American

R&A

research and analysis

REA

representative elementary area

SAFARI

South African Fire-Atmosphere Research Initiative

SAGE

Stratospheric Aerosol and Gas Experiment

SAO*

SI Smithsonian Astrophysical Observatory

SCAR

Scientific Committee on Antarctic Research

SCOPE

Scientific Committee on Problems of the Environment

SEDAC

Social and Economic Data and Applications Center

SERC*

SI Smithsonian Environmental Research Center

SI*

Smithsonian Institution

SLP

sea level pressure

SOI

Southern Oscillation Index

SPADE

Stratospheric Photochemistry, Aerosol, and Dynamics Expedition

SPECMAP

Spectral Mapping Project

SPOT

Systeme Probatoire pour l'Observatión de la Terre

SST

sea surface temperature

START

Global Change System for Analysis, Research, and Training

STE

stratosphere troposphere exchange

STRI*

SI Smithsonian Tropical Research Institute

STN

Simulated Topographical Network

SURFRAD

surface radiation observations

TAO

tropical atmosphere-ocean

TIROS

Television and Infared Observation Satellite

TM

thematic mapper

TOGA

Tropical Oceans and Global Atmosphere program

TOMS

total ozone mapping spectrometer

TOPEX

Ocean Topography Experiment

TRACE-A

Transport and Chemistry near the Equator over the Atlantic

TRMM

Tropical Rainfall Measurng Mission

UARS

Upper-Atmosphere Research Satellite

UNEP

United Nations Environment Programme

UNESCO

United Nations Educational, Scientific, and Cultural Organization

USAID

U.S. Agency for International Development

USDA*

U.S. Department of Agriculture

USGCRP

U.S. Global Change Research Program

USGS*

U.S. Geological Survey

USHCN

U.S. Historical Climate Network

VEMAP

Vegetation and Ecosystem Modeling and Analysis Project

VOCs

volatile organic compounds

WCRP

World Climate Research Programme

WFS

World Fertility Survey

WMO

World Meteorological Organization

WOCE

World Ocean Circulation Experiment