[785] - Brightness Temperature and Soil Moisture Validation at Different Scales During the SMOS Validation Campaign in the Rur and Erft Catchments, Germany

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Montzka, C., Bogena, H., Weihermüller, L., Jonard, F., Dimitrov, M., Bouzinac, C., Kainulainen, J., Balling, J. E., Vanderborght, J., Vereecken, H., 2012. Brightness Temperature and Soil Moisture Validation at Different Scales During the SMOS Validation Campaign in the Rur and Erft Catchments, Germany. IEEE Geoscience and Remote Sensing Letters, 51 (3), 1728 - 1743. DOI: 10.1109/TGRS.2012.2206031.
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Title(s):Main Title: Brightness Temperature and Soil Moisture Validation at Different Scales During the SMOS Validation Campaign in the Rur and Erft Catchments, Germany
Description(s):Abstract: The European Space Agency's Soil Moisture and Ocean Salinity (SMOS) satellite was launched in November 2009 and delivers now brightness temperature and soil moisture products over terrestrial areas on a regular three-day basis. In 2010, several airborne campaigns were conducted to validate the SMOS products with microwave emission radiometers at L-band (1.4 GHz). In this paper, we present results from measurements performed in the Rur and Erft catchments in May and June 2010. The measurement sites were situated in the very west of Germany close to the borders to Belgium and The Netherlands. We developed an approach to validate spatial and temporal SMOS brightness temperature products. An area-wide brightness temperature reference was generated by using an area-wide modeling of top soil moisture and soil temperature with the WaSiM-ETH model and radiative transfer calculation based on the L-band Microwave Emission of the Biosphere model. Measurements of the airborne L-band sensors EMIRAD and HUT-2D on-board a Skyvan aircraft as well as ground-based mobile measurements performed with the truck mounted JÜLBARA L-band radiometer were analyzed for calibration of the simulated brightness temperature reference. Radiative transfer parameters were estimated by a data assimilation approach. By this versatile reference data set, it is possible to validate the spaceborne brightness temperature and soil moisture data obtained from SMOS. However, comparisons with SMOS observations for the campaign period indicate severe differences between simulated and observed SMOS data.
Identifier(s):DOI: 10.1109/TGRS.2012.2206031
Responsible Party
Creator(s):Author: Carsten Montzka
Author: Heye Bogena
Author: Lutz Weihermüller
Author: Francois Jonard
Author: Marin Dimitrov
Author: Catherine Bouzinac
Author: Juha Kainulainen
Author: Jan E. Balling
Author: Jan Vanderborght
Author: Harry Vereecken
TR32 Topic:Remote Sensing
Subject(s):CRC/TR32 Keywords: Soil Moisture, SMOS
File Details
File Name:2012_Montzka_GRSL_Metadata
Data Type:Text
Size(s):16 Pages
Date(s):Issued: 2012-08-06
Modified: 2013-02-22
Download Permission:OnlyTR32
General Access and Use Conditions:For internal use only
Access Limitations:For internal use only
Licence:TR32DB Data policy agreement
North:-no map data
Measurement Region:Other
Measurement Location:--Other--
Specific Informations - Publication
Article Type:Journal
Source:IEEE Geoscience and Remote Sensing Letters
Number Of Pages:16
Page Range:1728 - 1743
Metadata Details
Metadata Creator:Carsten Montzka
Metadata Created:2013-12-09
Metadata Last Updated:2013-12-09
Funding Phase:2
Metadata Language:English
Metadata Version:V40
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