Polarimetric Radar Measurements of Rainfall Compared with Ground-Based Rain Gauges During MAYPOLE’84

Kultegin Aydin; Yuan Ming Lure; Thomas A. Seliga

doi:10.1109/TGRS.1990.572914

Polarimetric Radar Measurements of Rainfall Compared with Ground-Based Rain Gauges During MAYPOLE’84

Kultegin Aydin, Yuan Ming Lure, Thomas A. Seliga

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Estimates of rainfall rates using data from an S-band radar and applying the differential reflectivity technique (RZDR) and two Z-R relationships (Marshall-Palmer RMP and Jones’s thunderstorm RJ) were compared with tipping-bucket rain-gauge measurements at two locations during a rainfall event on June 16, 1984 near Boulder, Colorado. The horizontal and vertical transport of raindrops were taken into account by utilizing an estimated storm speed and direction and average fall time of the raindrops. This procedure was adopted so the time-averaging performed on the rain-gauge measurements would match the spatial averaging of the radar measurements. Corrections were also made in the times of the radar-derived rainfall rates to account for the altitude of the measurements. The results indicate that the differential reflectivity technique performed consistently well at both sites, whereas the Z-R relationships performed well at one site and not as well at the other. The biases and standard errors for the combination of the measurements at both sites were +11% (overestimated by radar) and 38% for RZDR, -13% (underestimated by radar) and 45% for RMP and -24% and 45% for RJ, respectively.

Original language	English (US)
Pages (from-to)	443-449
Number of pages	7
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	28
Issue number	4
DOIs	https://doi.org/10.1109/TGRS.1990.572914
State	Published - Jul 1990

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
Earth and Planetary Sciences(all)

Access to Document

10.1109/TGRS.1990.572914

Cite this

@article{7012236d9c6440709c574563d2610d51,

title = "Polarimetric Radar Measurements of Rainfall Compared with Ground-Based Rain Gauges During MAYPOLE{\textquoteright}84",

abstract = "Estimates of rainfall rates using data from an S-band radar and applying the differential reflectivity technique (RZDR) and two Z-R relationships (Marshall-Palmer RMP and Jones{\textquoteright}s thunderstorm RJ) were compared with tipping-bucket rain-gauge measurements at two locations during a rainfall event on June 16, 1984 near Boulder, Colorado. The horizontal and vertical transport of raindrops were taken into account by utilizing an estimated storm speed and direction and average fall time of the raindrops. This procedure was adopted so the time-averaging performed on the rain-gauge measurements would match the spatial averaging of the radar measurements. Corrections were also made in the times of the radar-derived rainfall rates to account for the altitude of the measurements. The results indicate that the differential reflectivity technique performed consistently well at both sites, whereas the Z-R relationships performed well at one site and not as well at the other. The biases and standard errors for the combination of the measurements at both sites were +11% (overestimated by radar) and 38% for RZDR, -13% (underestimated by radar) and 45% for RMP and -24% and 45% for RJ, respectively.",

author = "Kultegin Aydin and Lure, {Yuan Ming} and Seliga, {Thomas A.}",

note = "Funding Information: Manuscript received November 13, 1989; revised March 2, 1990. This research was partially supported by the Army Research Office through the University Corporation for Research under Subcontract NCAR S3025, Contract DAAL 03-87-K-0031, Contract DAAL 03-89-K-0158, and by the University of Florence, Italy, under contract with the Pennsylvania State University. K. Aydin is with the Department of Electrical Engineering, Pennsylvania State University, University Park, PA 16802 Y.-M. Lure was with the Department of Electrical Engineering, Pennsylvania State University, University Park, PA He is now with the Caelum Research Corporation, Silver Spring, MD. T. A. Scliga was with the Department of Electrical Engineering, Pennsylvania State University, University Park, PA. He is now with the Department of Electrical Engineering, University of Washington, Seattle, WA. IEEE Log Number 9036055.",

year = "1990",

month = jul,

doi = "10.1109/TGRS.1990.572914",

language = "English (US)",

volume = "28",

pages = "443--449",

journal = "IEEE Transactions on Geoscience and Remote Sensing",

issn = "0196-2892",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

}

TY - JOUR

T1 - Polarimetric Radar Measurements of Rainfall Compared with Ground-Based Rain Gauges During MAYPOLE’84

AU - Aydin, Kultegin

AU - Lure, Yuan Ming

AU - Seliga, Thomas A.

N1 - Funding Information: Manuscript received November 13, 1989; revised March 2, 1990. This research was partially supported by the Army Research Office through the University Corporation for Research under Subcontract NCAR S3025, Contract DAAL 03-87-K-0031, Contract DAAL 03-89-K-0158, and by the University of Florence, Italy, under contract with the Pennsylvania State University. K. Aydin is with the Department of Electrical Engineering, Pennsylvania State University, University Park, PA 16802 Y.-M. Lure was with the Department of Electrical Engineering, Pennsylvania State University, University Park, PA He is now with the Caelum Research Corporation, Silver Spring, MD. T. A. Scliga was with the Department of Electrical Engineering, Pennsylvania State University, University Park, PA. He is now with the Department of Electrical Engineering, University of Washington, Seattle, WA. IEEE Log Number 9036055.

PY - 1990/7

Y1 - 1990/7

N2 - Estimates of rainfall rates using data from an S-band radar and applying the differential reflectivity technique (RZDR) and two Z-R relationships (Marshall-Palmer RMP and Jones’s thunderstorm RJ) were compared with tipping-bucket rain-gauge measurements at two locations during a rainfall event on June 16, 1984 near Boulder, Colorado. The horizontal and vertical transport of raindrops were taken into account by utilizing an estimated storm speed and direction and average fall time of the raindrops. This procedure was adopted so the time-averaging performed on the rain-gauge measurements would match the spatial averaging of the radar measurements. Corrections were also made in the times of the radar-derived rainfall rates to account for the altitude of the measurements. The results indicate that the differential reflectivity technique performed consistently well at both sites, whereas the Z-R relationships performed well at one site and not as well at the other. The biases and standard errors for the combination of the measurements at both sites were +11% (overestimated by radar) and 38% for RZDR, -13% (underestimated by radar) and 45% for RMP and -24% and 45% for RJ, respectively.

AB - Estimates of rainfall rates using data from an S-band radar and applying the differential reflectivity technique (RZDR) and two Z-R relationships (Marshall-Palmer RMP and Jones’s thunderstorm RJ) were compared with tipping-bucket rain-gauge measurements at two locations during a rainfall event on June 16, 1984 near Boulder, Colorado. The horizontal and vertical transport of raindrops were taken into account by utilizing an estimated storm speed and direction and average fall time of the raindrops. This procedure was adopted so the time-averaging performed on the rain-gauge measurements would match the spatial averaging of the radar measurements. Corrections were also made in the times of the radar-derived rainfall rates to account for the altitude of the measurements. The results indicate that the differential reflectivity technique performed consistently well at both sites, whereas the Z-R relationships performed well at one site and not as well at the other. The biases and standard errors for the combination of the measurements at both sites were +11% (overestimated by radar) and 38% for RZDR, -13% (underestimated by radar) and 45% for RMP and -24% and 45% for RJ, respectively.

UR - http://www.scopus.com/inward/record.url?scp=0025456069&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025456069&partnerID=8YFLogxK

U2 - 10.1109/TGRS.1990.572914

DO - 10.1109/TGRS.1990.572914

M3 - Article

AN - SCOPUS:0025456069

SN - 0196-2892

VL - 28

SP - 443

EP - 449

JO - IEEE Transactions on Geoscience and Remote Sensing

JF - IEEE Transactions on Geoscience and Remote Sensing

IS - 4

ER -

Polarimetric Radar Measurements of Rainfall Compared with Ground-Based Rain Gauges During MAYPOLE’84

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this