Articles | Volume 11, issue 9
https://doi.org/10.5194/amt-11-5223-2018
https://doi.org/10.5194/amt-11-5223-2018
Research article
 | 
18 Sep 2018
Research article |  | 18 Sep 2018

Enhancing the consistency of spaceborne and ground-based radar comparisons by using beam blockage fraction as a quality filter

Irene Crisologo, Robert A. Warren, Kai Mühlbauer, and Maik Heistermann

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Cited articles

Abon, C. C., Kneis, D., Crisologo, I., Bronstert, A., David, C. P. C., and Heistermann, M.: Evaluating the potential of radar-based rainfall estimates for streamflow and flood simulations in the Philippines, Geomat. Nat. Haz. Risk, 7, 1390–1405, https://doi.org/10.1080/19475705.2015.1058862, 2016. a
Amitai, E., Llort, X., and Sempere-Torres, D.: Comparison of TRMM radar rainfall estimates with NOAA next-generation QPE, J. Meteorol. Soc. Jpn., 87, 109–118, https://doi.org/10.2151/jmsj.87A.109, 2009. a
Anagnostou, E. N., Morales, C. A., and Dinku, T.: The use of TRMM precipitation radar observations in determining ground radar calibration biases, J. Atmos. Ocean Tech., 18, 616–628, 2001. a, b, c, d
Austin, P. M.: Relation between Measured Radar Reflectivity and Surface Rainfall, Mon. Weather Rev., 115, 1053–1070, https://doi.org/10.1175/1520-0493(1987)115<1053:RBMRRA>2.0.CO;2, 1987. a
Baldini, L., Chandrasekar, V., and Moisseev, D.: Microwave radar signatures of precipitation from S band to Ka band: application to GPM mission, Eur. J. Remote Sens., 45, 75–88, https://doi.org/10.5721/EuJRS20124508, 2012. a
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Short summary
The calibration of ground-based weather radar (GR) can be improved a posteriori by comparing observed GR reflectivity to well-established spaceborne radar platforms (SR), such as TRMM or GPM. Our study shows that the consistency between GR and SR reflectivity measurements can be enhanced by considering the quality of GR data from areas where signals may have been blocked due to the surrounding terrain, and provides an open-source toolset to carry out corresponding analyses.