Landsat
The Landsat satellites were developed and launched by NASA to gather Earth resource data using a series of satellites over the course of multiple decades. Since the launch of Landsat 1 in the early 1970s, the USGS has archived and distributed Landsat data and has been a leader in developing research applications for the data. Since the launch of Landsat 7 in 1999, the USGS has assumed responsibility for flight operations, orbital maintenance, and management of all ground data reception, processing, archiving, product generation, and distribution. The Landsat data are transmitted to United States and international ground stations and transferred to the USGS
EROS
Data Center in Sioux Falls, S. Dak., where the data are processed, archived, and distributed.
Earth
Observing 1
NASA’s
Earth Observing-1 (EO-1) satellite was launched in November 2000 to
validate various new technologies aimed at lowering the cost
and increasing the performance of future earth science missions.
The EO-1 Mission was successfully completed in November 2001, but as
a result of the superior performance of the EO-1 imaging instruments
and the exceptional value of the collected data, NASA and the USGS
agreed to continue to collect hyperspectral and multispectral data
through the EO-1 Extended Mission. The USGS tasks the satellite
in accordance with customer requirements. The USGS EROS
Data Center processes, archives, and distributes Hyperion
and Advanced Land Imager (ALI) data products.
LP DAAC
The Land Processes DAAC was established as part of NASA's Earth Observing System
(EOS) Data and Information System (EOSDIS)
initiative to process, archive, and distribute land-related
data collected by EOS sensors, thereby promoting the inter-disciplinary
study and understanding of the integrated Earth system.
The role of the Land Processes DAAC includes the processing
and distribution of ETM+ data acquired by Landsat
7, higher-level processing and distribution of
ASTER
data, and the distribution of MODIS
land products derived from data acquired by the Terra and Aqua
satellites.
U.S. Department of the Interior |
U.S. Geological Survey
