Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia
Abstract— Various relationships between radar reflectivity Z and rainfall rate R commonly identified as Z-R relationships have been derived in order to provide better accuracy for rainfall rate estimation using weather radar. It is critical for the air traffic management at the airport to accur...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
ETPub
2013
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/34370/3/20131006021818775.pdf |
| _version_ | 1825647763633733632 |
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| author | Sobli, Nuurul Hudaa Ismail, Ahmad Fadzil Mohd. Isa, Farah Nadia Mansor, Hasmah |
| author_facet | Sobli, Nuurul Hudaa Ismail, Ahmad Fadzil Mohd. Isa, Farah Nadia Mansor, Hasmah |
| author_sort | Sobli, Nuurul Hudaa |
| collection | IIUM |
| description | Abstract— Various relationships between radar reflectivity
Z and rainfall rate R commonly identified as Z-R
relationships have been derived in order to provide better
accuracy for rainfall rate estimation using weather radar. It
is critical for the air traffic management at the airport to
accurately detect existence of potential microburst and wind
shear. There are numerous factors that can certainly affect
the accuracy of Z-R relationships including poor hardware
calibration. However, the inaccuracy of Z-R relationships
also might be due to the differences between the
precipitation at the ground level and the precipitation aloft
because radar does not scan all the way down except at close
range. Several Z-R relationships had also been proposed in
the attempt to achieve better accuracy for rainfall estimates
by radar system in the tropical region. Nonetheless, the most
accurate Z-R relationship for Malaysia weather radar is yet
to be investigated and to be identified within the study
period. This paper presents the preliminary analyses of
previously proposed Z-R relationships for Malaysia weather
using new radar data and ground rainfall rate.
Comparisons were made between values obtained from the
previously proposed relationships for radar and the ground
truth measurements. It was identified that the previously
proposed relationships estimations are significantly lower
than the rain gauge data. |
| first_indexed | 2024-03-05T23:22:24Z |
| format | Article |
| id | oai:generic.eprints.org:34370 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-05T23:22:24Z |
| publishDate | 2013 |
| publisher | ETPub |
| record_format | dspace |
| spelling | oai:generic.eprints.org:343702022-07-22T01:58:29Z http://irep.iium.edu.my/34370/ Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia Sobli, Nuurul Hudaa Ismail, Ahmad Fadzil Mohd. Isa, Farah Nadia Mansor, Hasmah TK Electrical engineering. Electronics Nuclear engineering Abstract— Various relationships between radar reflectivity Z and rainfall rate R commonly identified as Z-R relationships have been derived in order to provide better accuracy for rainfall rate estimation using weather radar. It is critical for the air traffic management at the airport to accurately detect existence of potential microburst and wind shear. There are numerous factors that can certainly affect the accuracy of Z-R relationships including poor hardware calibration. However, the inaccuracy of Z-R relationships also might be due to the differences between the precipitation at the ground level and the precipitation aloft because radar does not scan all the way down except at close range. Several Z-R relationships had also been proposed in the attempt to achieve better accuracy for rainfall estimates by radar system in the tropical region. Nonetheless, the most accurate Z-R relationship for Malaysia weather radar is yet to be investigated and to be identified within the study period. This paper presents the preliminary analyses of previously proposed Z-R relationships for Malaysia weather using new radar data and ground rainfall rate. Comparisons were made between values obtained from the previously proposed relationships for radar and the ground truth measurements. It was identified that the previously proposed relationships estimations are significantly lower than the rain gauge data. ETPub 2013-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/34370/3/20131006021818775.pdf Sobli, Nuurul Hudaa and Ismail, Ahmad Fadzil and Mohd. Isa, Farah Nadia and Mansor, Hasmah (2013) Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia. International Journal of Electrical Energy , 1 (4). pp. 239-243. ISSN 2301-3656 http://www.ijoee.org//index.php?m=content&c=index&a=lists&catid=35 doi: 10.12720/ijoee.1.4.239-243 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Sobli, Nuurul Hudaa Ismail, Ahmad Fadzil Mohd. Isa, Farah Nadia Mansor, Hasmah Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia |
| title | Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia |
| title_full | Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia |
| title_fullStr | Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia |
| title_full_unstemmed | Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia |
| title_short | Assessment of radar reflectivity-rainfall rate, Z-R relationships for a convective event in Malaysia |
| title_sort | assessment of radar reflectivity rainfall rate z r relationships for a convective event in malaysia |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://irep.iium.edu.my/34370/3/20131006021818775.pdf |
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