Development of soil moisture retrieval algorithms for the hydros microwave radiometer

Peggy O'Neill, J. C. Shi, Eni Njoku, Eric F. Wood

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The objective of the Hydros Earth System Science Pathfinder mission is to collect global scale measurements of the Earth's soil moisture and land surface freeze/thaw conditions, using a combined L band radiometer and radar system operating at 1.41 and 1.26 GHz, respectively. Brightness temperature data from the Hydros radiometer will have a nominal resolution of ∼40 km and an incidence angle of ∼40 degrees. Along with the inclusion of needed static and dynamic ancillary data, the Hydros calibrated TB will be used to generate an Earth-gridded derived soil moisture product. Members of the Hydros team are currently in the process of evaluating possible candidate soil moisture retrieval algorithms in order to select a baseline algorithm by mid-2006, although the algorithm test and evaluation process will likely continue through the Hydros launch in 2010. The accuracy of the various ancillary data parameters, as well as their temporal and spatial resolution, time lag, and ease of availability, will be an important factor in driving the overall error budget for the Hydros soil moisture products.

Original languageEnglish (US)
Title of host publication25th Anniversary IGARSS 2005
Subtitle of host publicationIEEE International Geoscience and Remote Sensing Symposium
Pages2744-2747
Number of pages4
DOIs
StatePublished - Dec 1 2005
Event2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of
Duration: Jul 25 2005Jul 29 2005

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume4

Other

Other2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005
CountryKorea, Republic of
CitySeoul
Period7/25/057/29/05

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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    O'Neill, P., Shi, J. C., Njoku, E., & Wood, E. F. (2005). Development of soil moisture retrieval algorithms for the hydros microwave radiometer. In 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium (pp. 2744-2747). [1525635] (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 4). https://doi.org/10.1109/IGARSS.2005.1525635