Evaluation of Anisotropic Mapping Function Using JMA 10-km Spectral Model
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- ICHIKAWA Ryuichi
- Kashima Space Research Center, National Institute of Information and Communications Technology
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- BEVIS Michael
- Ohio State University
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- FOSTER James
- University of Hawaii
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- MANNOJI Nobutaka
- Japan Meteorological Agency
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We obtain a set of pointed wet delay observations at a total of 81 stations at 9 separate time epochs by ray tracing through the output fields of a Japanese numerical weather model with a grid spacing of 10 km. For each station-epoch, we invert the simulated data set, consisting of 4000 pointed delays, using an isotropic and an anisotropic delay model. The isotropic model has only one parameter-the zenith wet delay (ZWD). The anisotropic delay model of Chen and Herring has two additional lateral gradient parameters. We find that the anisotropic model leads to a much better fit between the delay model and the delay observations. On the other hand, the ZWD parameters estimated using the differing delay models are almost identical. This implies the ZWD estimates are not greatly perturbed by lateral heterogeneity of the atmosphere.
収録刊行物
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- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 51 (171), 16-21, 2008
一般社団法人 日本航空宇宙学会
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詳細情報
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- CRID
- 1390282679056577280
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- NII論文ID
- 10024273518
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- NII書誌ID
- AA0086707X
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- ISSN
- 21894205
- 05493811
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- NDL書誌ID
- 9488429
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 使用不可