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024 7 _ |2 DOI
|a 10.1109/TGRS.2007.914797
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037 _ _ |a PreJuSER-61736
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084 _ _ |2 WoS
|a Geochemistry & Geophysics
084 _ _ |2 WoS
|a Engineering, Electrical & Electronic
084 _ _ |2 WoS
|a Remote Sensing
100 1 _ |a Guglielmetti, M.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a FOSMEX: Forest Soil Moisture Experiments with Microwave Radiometry
260 _ _ |a New York, NY
|b IEEE
|c 2008
300 _ _ |a 727 - 735
336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a article
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440 _ 0 |a IEEE Transactions on Geoscience and Remote Sensing
|x 0196-2892
|0 17961
|y 3
|v 46
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a The microwave Forest Soil Moisture Experiment (FOSMEX) was performed at a deciduous forest site at the Research Centre Julich (Germany). An L- and an X-band radiometer were mounted 100 m above ground and directed to the canopy. The measurements consist of dual- and single-polarized L- and X-band data and simultaneously recorded ground moisture, temperature, and meteorological data. The canopy L-band transmissivity was estimated from a subset of the FOSMEX data, where the ground was masked with a metalized foil. For the foliage-free canopy, the reflecting foil diminished the L-band brightness by approximate to 24 K, whereas brightness increased by approximate to 14 K when the foil was removed from below the foliated canopy. Depending on the assumption made on the scattering albedo of the canopy, the transmissivities were between 0.2 and 0.51. Furthermore, the contribution of the foliage was quantified. Although, the evaluation revealed the semitransparency of the canopy for L-band frequencies, the brightness sensitivity with respect to ground moisture was substantially reduced for all foliation states. The effect of ground surface moisture was explored in an irrigation experiment. The L-band measurements were only affected for a few hours until the water drained through the litter layer. This emphasizes the significance of the presence of litter for soil moisture retrieval from remotely sensed L-band brightness data. The FOSMEX database serves for further testing and improving radiative transfer models used for interpreting microwave data received from future spaceborne L-band radiometers flying over areas comprising a considerable fraction of deciduous forests.
536 _ _ |a Terrestrische Umwelt
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588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
|2 WoSType
653 2 0 |2 Author
|a canopy transmissivity
653 2 0 |2 Author
|a forest
653 2 0 |2 Author
|a microwave radiometry
653 2 0 |2 Author
|a radiative transfer
653 2 0 |2 Author
|a soil moisture
700 1 _ |a Schwank, M.
|b 1
|0 P:(DE-HGF)0
700 1 _ |a Mätzler, C.
|b 2
|0 P:(DE-HGF)0
700 1 _ |a Oberdörster, C.
|b 3
|u FZJ
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700 1 _ |a Vanderborght, J.
|b 4
|u FZJ
|0 P:(DE-Juel1)129548
700 1 _ |a Flühler, H.
|b 5
|0 P:(DE-HGF)0
773 _ _ |a 10.1109/TGRS.2007.914797
|g Vol. 46, p. 727 - 735
|p 727 - 735
|q 46<727 - 735
|0 PERI:(DE-600)2027520-1
|t IEEE transactions on geoscience and remote sensing
|v 46
|y 2008
|x 0196-2892
856 7 _ |u http://dx.doi.org/10.1109/TGRS.2007.914797
909 C O |o oai:juser.fz-juelich.de:61736
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914 1 _ |y 2008
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
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|d 31.10.2010
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