 Aqua, Latin for water, is a NASA Earth Science satellite mission named for the large amount of information that the mission is collecting about the Earth's water cycle, including evaporation from the oceans, water vapor in the atmosphere, clouds, precipitation, soil moisture, sea ice, land ice, and snow cover on the land and ice. Additional variables also being measured by Aqua include radiative energy fluxes, aerosols, vegetation cover on the land, phytoplankton and dissolved organic matter in the oceans, and air, land, and water temperatures.
The Aqua mission is a part of the NASA-centered international Earth Observing System (EOS). Aqua was formerly named EOS PM, signifying its afternoon equatorial crossing time. A timeline of Aqua on-orbit progress through the initial 120 day check-out period can be found here.
Aqua was launched on May 4, 2002, and has six Earth-observing instruments on board, collecting a variety of global data sets. Aqua was the first member launched of a group of satellites termed the Afternoon Constellation, or sometimes the A-Train. The second member to be launched was Aura, in July 2004, the third member was PARASOL, in December 2004, and the fourth and fifth members are CloudSat and CALIPSO, in May 2006. The Japanese satellite GCOM-W1 was launched on May 18, 2012 and entered the A-Train in front of Aqua on June 29, 2012. One additional satellite, NASA's OCO-2, currently under development, is also expected to enter the A-Train. Once completed, the A-Train will be led by OCO-2, followed by GCOM-W1, then Aqua, CloudSat, CALIPSO, PARASOL, and, in the rear, Aura.
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- Aqua video podcast series
A series of six video podcasts (i.e., vodcasts) are being produced by NASA Goddard TV in conjunction with Aqua mission personnel. 1. Vodcast 1, Introducing the Aqua Mission, viewable at the NASA Goddard YouTube channel and NASA Scientific Visualization Studio 2. Vodcast 2, Aqua AIRS: Visions of Weather and Climate, viewable at the NASA Goddard YouTube channel and NASA Scientific Visualization Studio 3. Vodcast 3, Aqua AMSR-E: Scanning Earth's Water Cycle, viewable at the NASA Goddard YouTube channel and NASA Scientific Visualization Studio 4. Vodcast 4, Aqua MODIS: Science and Beauty, viewable at the NASA Goddard YouTube channel and NASA Scientific Visualization Studio 5. Vodcast 5, Aqua CERES: Tracking Earth's Heat Balance, viewable at the NASA Goddard YouTube channel and NASA Scientific Visualization Studio
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