SMAP Level 4 Surface and Root Zone Soil Moisture

R. Reichle, G. De Lannoy, Q. Liu, J. Ardizzone, J. Kimball, R. Koster

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The SMAP Level 4 soil moisture (L4-SM) product provides global estimates of surface and root zone soil moisture, along with other land surface variables and their error estimates. These estimates are obtained through assimilation of SMAP brightness temperature observations into the Goddard Earth Observing System (GEOS-5) land surface model. The L4-SM product is provided at 9 km spatial and 3-hourly temporal resolution and with about 2.5 day latency. The soil moisture and temperature estimates in the L4-SM product are validated against in situ observations. The L4-SM product meets the required target uncertainty of 0.04 m3m-3, measured in terms of unbiased root-mean-square-error, for both surface and root zone soil moisture.

Original languageEnglish
Title of host publication2016 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages136-138
Number of pages3
ISBN (Electronic)9781509033324
DOIs
StatePublished - Nov 1 2016
Event36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016 - Beijing, China
Duration: Jul 10 2016Jul 15 2016

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2016-November

Conference

Conference36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016
Country/TerritoryChina
CityBeijing
Period07/10/1607/15/16

Keywords

  • data assimilation
  • SMAP
  • Soil moisture

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