NDLI: Assimilation of passive and active microwave soil moisture retrievals

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Assimilation of passive and active microwave soil moisture retrievals

Content Provider	NASA Technical Reports Server (NTRS)
Author	Liu, Q. DeLannoy, G. J. M. Draper, C. S. Reichle, R. H.
Copyright Year	2012
Description	Root-zone soil moisture is an important control over the partition of land surface energy and moisture, and the assimilation of remotely sensed near-surface soil moisture has been shown to improve model profile soil moisture [1]. To date, efforts to assimilate remotely sensed near-surface soil moisture at large scales have focused on soil moisture derived from the passive microwave Advanced Microwave Scanning Radiometer (AMSR-E) and the active Advanced Scatterometer (ASCAT; together with its predecessor on the European Remote Sensing satellites (ERS. The assimilation of passive and active microwave soil moisture observations has not yet been directly compared, and so this study compares the impact of assimilating ASCAT and AMSR-E soil moisture data, both separately and together. Since the soil moisture retrieval skill from active and passive microwave data is thought to differ according to surface characteristics [2], the impact of each assimilation on the model soil moisture skill is assessed according to land cover type, by comparison to in situ soil moisture observations.
File Size	925873
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20120013591
Archival Resource Key	ark:/13960/t4cp23p7j
Language	English
Publisher Date	2012-07-22
Access Restriction	Open
Subject Keyword	Earth Resources And Remote Sensing Scatterometers Assimilation Soil Moisture Moisture Control Surfaces Earth Surface Surface Energy Remote Sensing Microwaves Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Presentation

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