Abstract
This study proposes a method of relay-information-transfer for radar QPE (quantitative precipitation estimation) to overcome the limitation of the current QPE in Korea. The Z-R relationship was selected as the QPE information to be transferred. To examine the applicability of the proposed method, three different cases of relay-information-transfer were considered: (1) from the sea to inland, (2) from inland to another inland location, and (3) over a long distance. The results were: (1) Between the two parameters of the Z-R relationship, the parameter A was found to have an explanatory power of more than 70% of the Z-R relationship from one radar to the other. (2) All three cases showed that the relay-information-transfer of the parameter A was highly applicable, especially in the initial period of a storm. (3) Areal average rainfall and the root mean square error of the radar rain rate also confirmed that the relay-information-transfer method resulted in more reasonable estimates of the parameter A in the initial period of a storm. After the initial period, however, both the conventional method and the method proposed in this study were found to provide similar and reasonable estimates.
| Original language | English |
|---|---|
| Journal | Journal of Hydrology |
| DOIs | |
| Publication status | Accepted/In press - 2015 |
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Keywords
- Quantitative precipitation estimation (QPE)
- Radar rain rate
- Relay-information-transfer
- Z-R relationship
ASJC Scopus subject areas
- Water Science and Technology
Cite this
Usefulness of relay-information-transfer for radar QPE. / Kim, Jungho; Yoo, Chulsang; Lim, Sanghun; Choi, Jeongho.
In: Journal of Hydrology, 2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Usefulness of relay-information-transfer for radar QPE
AU - Kim, Jungho
AU - Yoo, Chulsang
AU - Lim, Sanghun
AU - Choi, Jeongho
PY - 2015
Y1 - 2015
N2 - This study proposes a method of relay-information-transfer for radar QPE (quantitative precipitation estimation) to overcome the limitation of the current QPE in Korea. The Z-R relationship was selected as the QPE information to be transferred. To examine the applicability of the proposed method, three different cases of relay-information-transfer were considered: (1) from the sea to inland, (2) from inland to another inland location, and (3) over a long distance. The results were: (1) Between the two parameters of the Z-R relationship, the parameter A was found to have an explanatory power of more than 70% of the Z-R relationship from one radar to the other. (2) All three cases showed that the relay-information-transfer of the parameter A was highly applicable, especially in the initial period of a storm. (3) Areal average rainfall and the root mean square error of the radar rain rate also confirmed that the relay-information-transfer method resulted in more reasonable estimates of the parameter A in the initial period of a storm. After the initial period, however, both the conventional method and the method proposed in this study were found to provide similar and reasonable estimates.
AB - This study proposes a method of relay-information-transfer for radar QPE (quantitative precipitation estimation) to overcome the limitation of the current QPE in Korea. The Z-R relationship was selected as the QPE information to be transferred. To examine the applicability of the proposed method, three different cases of relay-information-transfer were considered: (1) from the sea to inland, (2) from inland to another inland location, and (3) over a long distance. The results were: (1) Between the two parameters of the Z-R relationship, the parameter A was found to have an explanatory power of more than 70% of the Z-R relationship from one radar to the other. (2) All three cases showed that the relay-information-transfer of the parameter A was highly applicable, especially in the initial period of a storm. (3) Areal average rainfall and the root mean square error of the radar rain rate also confirmed that the relay-information-transfer method resulted in more reasonable estimates of the parameter A in the initial period of a storm. After the initial period, however, both the conventional method and the method proposed in this study were found to provide similar and reasonable estimates.
KW - Quantitative precipitation estimation (QPE)
KW - Radar rain rate
KW - Relay-information-transfer
KW - Z-R relationship
UR - http://www.scopus.com/inward/record.url?scp=84937243080&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84937243080&partnerID=8YFLogxK
U2 - 10.1016/j.jhydrol.2015.07.006
DO - 10.1016/j.jhydrol.2015.07.006
M3 - Article
AN - SCOPUS:84937243080
JO - Journal of Hydrology
JF - Journal of Hydrology
SN - 0022-1694
ER -