Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 448 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 441 | - |
dc.citation.title | ATMOSPHERIC SCIENCE LETTERS | - |
dc.citation.volume | 18 | - |
dc.contributor.author | Choi, Yonghan | - |
dc.contributor.author | Cha, Dong-Hyun | - |
dc.contributor.author | Kim, Joowan | - |
dc.date.accessioned | 2023-12-21T21:37:53Z | - |
dc.date.available | 2023-12-21T21:37:53Z | - |
dc.date.created | 2017-12-11 | - |
dc.date.issued | 2017-11 | - |
dc.description.abstract | The effects of tuning of length-scale and observation-error on heavy rainfall forecasts are investigated. Length scale and observation error are tuned based on observation minus background (O - B) covariances and theoretically expected cost function values, respectively. Tuned length scale and observation error are applied to radar data assimilation using the Four Dimensional Variational (4D-Var) method. Length-scale tuning leads to improved Quantitative Precipitation Forecast (QPF) skill for heavy precipitation, better analyses, and reduced errors of wind, temperature, humidity, and hydrometeor forecasts. The effects of observation-error tuning are not as significant as those of length-scale tuning, and they are limited to improvements in QPF skill. This is because tuned observation errors are close to pre-assumed values. Proper tuning of length-scale and observation-error is essential for radar data assimilation using the 4D-Var method. | - |
dc.identifier.bibliographicCitation | ATMOSPHERIC SCIENCE LETTERS, v.18, no.11, pp.441 - 448 | - |
dc.identifier.doi | 10.1002/asl.787 | - |
dc.identifier.issn | 1530-261X | - |
dc.identifier.scopusid | 2-s2.0-85032214120 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23082 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/asl.787/abstract | - |
dc.identifier.wosid | 000415710900004 | - |
dc.language | 영어 | - |
dc.publisher | WILEY | - |
dc.title | Tuning of length-scale and observation-error for radar data assimilation using four dimensional variational (4D-Var) method | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Geochemistry & Geophysics; Meteorology & Atmospheric Sciences | - |
dc.relation.journalResearchArea | Geochemistry & Geophysics; Meteorology & Atmospheric Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | length-scale tuning | - |
dc.subject.keywordAuthor | observation-error tuning | - |
dc.subject.keywordAuthor | radar data assimilation | - |
dc.subject.keywordAuthor | 4D-Var | - |
dc.subject.keywordPlus | BACKGROUND-ERROR | - |
dc.subject.keywordPlus | KOREAN PENINSULA | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordPlus | DIAGNOSIS | - |
dc.subject.keywordPlus | STATISTICS | - |
dc.subject.keywordPlus | SIMULATION | - |
dc.subject.keywordPlus | FIELDS | - |
dc.subject.keywordPlus | IMPACT | - |
dc.subject.keywordPlus | MODEL | - |
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