Using Microwave Backhaul Links to Optimize the Performance of Algorithms for Rainfall Estimation and Attenuation Correction

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*Title:*	Main Title: Using Microwave Backhaul Links to Optimize the Performance of Algorithms for Rainfall Estimation and Attenuation Correction
*Description:*	Abstract: The variability in raindrop size distributions and attenuation effects are the two major sources of uncertainty in radar-based quantitative precipitation estimation (QPE) even when dual-polarization radars are used. New methods are introduced to exploit the measurements by commercial microwave radio links to reduce the uncertainties in both attenuation correction and rainfall estimation. The ratio a of specific attenuation A and specific differential phase KDP is the key parameter used in attenuation correction schemes and the recently introduced R(A) algorithm. It is demonstrated that the factor a can be optimized using microwave links at Ku band oriented along radar radials with an accuracy of about 20%–30%. The microwave links with arbitrary orientation can be utilized to optimize the intercepts in the R(KDP) and R(A) relations with an accuracy of about 25%. The performance of the suggested methods is tested using the polarimetric C-band radar operated by the German Weather Service on Mount Hohenpeissenberg in southern Germany and two radially oriented Ku-band microwave links from Ericsson GmbH.
*Identifier:*	10.1175/JTECH-D-14-00016.1 (DOI)
*Citation Advice:*	Troemel, S., Ziegert, M., Ryzhkov, A., Chwala, C., Simmer, C., 2014. Using Microwave Backhaul Links to Optimize the Performance of Algorithms for Rainfall Estimation and Attenuation Correction. Journal of Atmospheric and Ocenaic Technology, 31 (8), 1748 - 1760. DOI: 10.1175/JTECH-D-14-00016.1.

Responsible Party

*Creators:*	Silke Trömel (Author), Michael Ziegert (Author), Alexander Ryzhkov (Author), Christian Chwala (Author), Clemens Simmer (Author)
*Publisher:*	American Meteorological Society
*Publication Year:*	2014

Topic

*TR32 Topic:*	Atmosphere
*Related Subproject:*	D5
*Subjects:*	Keywords: Precipitation, Microwave Radiometer, Radar, Meteorology

File Details

*Filename:*	Troemel_et_al_2014_JTECH.pdf
*Data Type:*	Text - Article
*Size:*	13 Pages
*File Size:*	914 KB
*Date:*	Accepted: 24.04.2014
*Mime Type:*	application/pdf
*Data Format:*	PDF
*Language:*	English
*Status:*	Completed

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*Download Permission:*	Only Project Members
*General Access and Use Conditions:*	According to the TR32DB data policy agreement.
*Access Limitations:*	According to the TR32DB data policy agreement.
*Licence:*	[TR32DB] Data policy agreement

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*Publication Status:*	Published
*Review Status:*	Peer reviewed
*Publication Type:*	Article
*Article Type:*	Journal
*Source:*	Journal of Atmospheric and Ocenaic Technology
*Source Website:*	http://journals.ametsoc.org
*Issue:*	8
*Volume:*	31
*Number of Pages:*	13 (1748 - 1760)

Metadata Details

*Metadata Creator:*	Tanja Kramm
*Metadata Created:*	11.09.2014
*Metadata Last Updated:*	11.09.2014
*Subproject:*	D5
*Funding Phase:*	2
*Metadata Language:*	English
*Metadata Version:*	V50

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