[786] - Water vapor tomography with two microwave radiometer

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Steinke, S., Löhnert, U., Crewell, S., Liu, S., 2014. Water vapor tomography with two microwave radiometer. IEEE Geoscience and Remote Sensing Letters, 11 (2), 419 - 423. DOI: 10.1109/LGRS.2013.2264354.
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Title(s):Main Title: Water vapor tomography with two microwave radiometer
Description(s):Abstract: The present study shows how two microwave radiometers can be used to derive a 2-D water vapor field by means of a tomographic technique. For this purpose, synthetic measurements are simulated with a radiative transfer model applied to water vapor fields. These fields are obtained from a Large Eddy Simulation model, producing realistic atmospheric boundary layer structures. To derive the water vapor field from the microwave measurements, an iterative procedure based on the optimal estimation technique is used. The synthetic measurements are calculated for various measurement geometries. The comparison of the measurement geometries from one versus two radiometers shows that the standard deviation obtained from measurements with the two radiometers is smaller by 15%, and the degrees of freedom for signal are simultaneously larger by 61%. For deriving the best possible water vapor field, the spatial distribution of the measurement angles and the angular resolution of the scan are important. The angles are optimally distributed when most measurements originate from regions with a high variability in the water vapor field.
Identifier(s):DOI: 10.1109/LGRS.2013.2264354
Responsible Party
Creator(s):Author: Sandra Steinke
Author: Ulrich Löhnert
Author: Susanne Crewell
Author: Shaofeng Liu
TR32 Topic:Remote Sensing
Subject(s):CRC/TR32 Keywords: Water Vapour, Microwave Radiometer, Radiative Transfer, LES
File Details
File Name:2014_Steinke_GRSL_Metadata
Data Type:Text
Size(s):5 Pages
Date(s):Issued: 2013-07-05
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:None
Measurement Location:--None--
Specific Informations - Publication
Article Type:Journal
Source:IEEE Geoscience and Remote Sensing Letters
Number Of Pages:5
Page Range:419 - 423
Metadata Details
Metadata Creator:Sandra Steinke
Metadata Created:2013-12-09
Metadata Last Updated:2014-09-23
Funding Phase:2
Metadata Language:English
Metadata Version:V40
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