Aqua [367KB PDF]
The launch of NASA’s Aqua spacecraft continued the Earth Observing System (EOS) series of comprehensive satellites to monitor the Earth from a space-based platform. Aqua was so named because it obtains significant information about water in the Earth system including ocean surface water, humidity, precipitation infiltration, and runoff. Data from six Aqua instruments provide continuous, long-term records of the hydrologic cycle around the world, which are combined with data from other Earth-monitoring satellites launched by NASA and other countries.
Aura [6.8MB PDF]
NASA's Earth Observing System (EOS) Aura satellite is a NASA mission whose purpose is to study the Earth's ozone, air quality and climate. This mission is designed specifically to conduct research on the composition, chemistry and dynamics of the Earth's upper and lower atmosphere employing multiple instruments on a single satellite.
CALIPSO/CloudSat/GRACE [2600KB PDF]
This publication is intended to be a one-stop resource for science writers and reporters who want to write about any of these three missions. For each satellite, the guide includes a quick reference sheet, Q&A, basics on the science of each mission, public affairs and scientist contact information, explanations of the satellites and their instruments, Web sites and other resources.
Landsat [378KB PDF]
The flagship EOS satellite, Terra (formerly EOS AM-1), launched in July 1999, is providing key measurements of the physical and radiative properties of clouds; air-land and air-sea exchanges of energy, carbon, and water; trace gases; and volcanoes. Flying in formation with Terra, Landsat 7 is making global high spatial resolution measurements of land surface and surrounding coastal regions.
SORCE [500KB PDF]
SORCE, launched in March 2003, aims to enable solar-terrestrial studies by providing precise daily measurements of the Total Solar Irradiance and the Spectral Solar Irradiance at wavelengths extending from the ultraviolet to the near infrared.
Terra [375KB PDF]
The launch of NASA’s Terra spacecraft in 1999, marked a new era of comprehensive monitoring of the Earth’s atmosphere, oceans, and continents from a single space-based platform. Data from the five Terra instruments are creating continuous, long-term records of the state of the land, oceans, and atmosphere. Together with data from other satellite systems launched by NASA and other countries, Terra inaugurated a new 15-year data record.
