Articles | Volume 13, issue 2
Atmos. Meas. Tech., 13, 645–659, 2020
https://doi.org/10.5194/amt-13-645-2020
Atmos. Meas. Tech., 13, 645–659, 2020
https://doi.org/10.5194/amt-13-645-2020

Research article 11 Feb 2020

Research article | 11 Feb 2020

Using ground radar overlaps to verify the retrieval of calibration bias estimates from spaceborne platforms

Irene Crisologo and Maik Heistermann

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Cited articles

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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Bolen, S. M. and Chandrasekar, V.: Methodology for aligning and comparing spaceborne radar and ground-based radar observations, J. Atmos. Ocean. Tech., 20, 647–659, 2003. a
Bringi, V. N., Chandrasekar, V., Balakrishnan, N., and Zrnić, D. S.: An Examination of Propagation Effects in Rainfall on Radar Measurements at Microwave Frequencies, J. Atmos. Ocean. Tech., 7, 829–840, https://doi.org/10.1175/1520-0426(1990)007<0829:AEOPEI>2.0.CO;2, 1990. a
Cao, Q., Hong, Y., Qi, Y., Wen, Y., Zhang, J., Gourley, J. J., and Liao, L.: Empirical conversion of the vertical profile of reflectivity from Ku-band to S-band frequency, J. Geophys. Res.-Atmos., 118, 1814–1825, https://doi.org/10.1002/jgrd.50138, 2013. a
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Short summary
Archives of radar observations often suffer from errors, one of which is calibration. However, it is possible to correct them after the fact by using satellite radars as a calibration reference. We propose improvements to this calibration method by considering factors that affect the data quality, such that poor quality data gets filtered out in the bias calculation by assigning weights. We also show that the bias can be interpolated in time even for days when there are no satellite data.