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Ultraspectral Sounding Retrieval Error Budget and EstimationThe ultraspectral infrared radiances obtained from satellite observations provide atmospheric, surface, and/or cloud information. The intent of the measurement of the thermodynamic state is the initialization of weather and climate models. Great effort has been given to retrieving and validating these atmospheric, surface, and/or cloud properties. Error Consistency Analysis Scheme (ECAS), through fast radiative transfer model (RTM) forward and inverse calculations, has been developed to estimate the error budget in terms of absolute and standard deviation of differences in both spectral radiance and retrieved geophysical parameter domains. The retrieval error is assessed through ECAS without assistance of other independent measurements such as radiosonde data. ECAS re-evaluates instrument random noise, and establishes the link between radiometric accuracy and retrieved geophysical parameter accuracy. ECAS can be applied to measurements of any ultraspectral instrument and any retrieval scheme with associated RTM. In this paper, ECAS is described and demonstration is made with the measurements of the METOP-A satellite Infrared Atmospheric Sounding Interferometer (IASI)..
Document ID
20110015883
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Zhou, Daniel K.
(NASA Langley Research Center Hampton, VA, United States)
Larar, Allen M.
(NASA Langley Research Center Hampton, VA, United States)
Liu, Xu
(NASA Langley Research Center Hampton, VA, United States)
Smith, William L.
(Hampton Univ. VA, United States)
Strow, L. Larrabee
(Maryland Univ. Baltimore County Baltimore, MD, United States)
Yang, Ping
(Texas A&M Univ. College Station, TX, United States)
Date Acquired
August 25, 2013
Publication Date
September 19, 2011
Subject Category
Geophysics
Report/Patent Number
NF1676L-13280
Meeting Information
Meeting: SPIE Remote Sensing Europe 2011
Location: Prague
Country: Czech Republic
Start Date: September 19, 2011
End Date: September 22, 2011
Sponsors: International Society for Optical Engineering
Funding Number(s)
WBS: WBS 199008.02.07.9474.11
Distribution Limits
Public
Copyright
Public Use Permitted.
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