The Earth Sciences Portal
The Earth Sciences Portal has applications, data sources, analysis, education, and general information about Earth science.

Earth Science Enterprise
NASA's comprehensive program to study the Earth as a complete environmental system.

Earth Science Enterprise - Additional Information
This link takes you to more information about the Earth Science Enterprise as well as websites of the National Oceanic and Atmospheric Administration (NOAA), National Science Foundation (NSF), Foreign Space Agencies and many others.

EOS Program Office
The Earth Observing System (EOS) Program Office is the designated program management office for flight, ground, and science performed at the GSFC as part of the overall EOS Program with the Earth Science Enterprise. The EOS Program Office is responsible for the management and coordination of all projects and mission offices within EOS as well as external coordination and support to NASA's Office of Earth Science (OES) Program Office. The charter document for this Program Office is the EOS Program Commitment Agreement (PCA). (Source: EOS Program Plan, 5/99)

NASA Centers
Visit the websites of other NASA Centers.

SeaWiFS
The Sea-viewing Wide Field-of-view Sensor (SeaWiFS) provides quantitative data on global ocean bio-optical properties.

NASA/NOAA Pathfinder Program
The joint NASA/NOAA Pathfinder program focuses on processing existing satellite-based, long time-series data sets with stable calibration and community consensus algorithms to better assist the research community in studying global change.

TOPEX/Poseidon
TOPEX/Poseidon is a partnership between the U.S. and France to monitor global ocean circulation, discover the tie between the oceans and atmosphere, and improve global climate predictions. Every 10 days, the TOPEX/Poseidon satellite measures global sea level with unparalleled accuracy.

Triana
Triana is a mission dedicated to helping scientists construct more accurate models of Earth's climate and answering a key Earth Science question-- how solar radiation affects climate.

TRMM
The Tropical Rainfall Measuring Mission (TRMM) is a joint mission between NASA and the National Space Development Agency (NASDA) of Japan designed to monitor and study tropical rainfall and the associated release of energy that helps to power the global atmospheric circulation shaping both weather and climate around the globe.

UARS
The Upper Atmosphere Research Satellite (UARS) will carry out the first systematic, comprehensive study of the stratosphere and furnish important new data on the mesosphere and thermosphere.