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北陸地方における前線通過時のGPS電波大気遅延変動について
https://doi.org/10.14945/00000369
https://doi.org/10.14945/0000036963dc1f76-5be7-44eb-8328-892dcf5d8b21
名前 / ファイル | ライセンス | アクション |
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KJ00000102457.pdf (1.5 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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公開日 | 2008-01-25 | |||||||
タイトル | ||||||||
タイトル | 北陸地方における前線通過時のGPS電波大気遅延変動について | |||||||
言語 | ||||||||
言語 | jpn | |||||||
キーワード | ||||||||
主題Scheme | Other | |||||||
主題 | GPS | |||||||
キーワード | ||||||||
主題Scheme | Other | |||||||
主題 | Precipitable Water Vapor(PWV) | |||||||
キーワード | ||||||||
主題Scheme | Other | |||||||
主題 | Hokuriku region | |||||||
キーワード | ||||||||
主題Scheme | Other | |||||||
主題 | cold front | |||||||
キーワード | ||||||||
主題Scheme | Other | |||||||
主題 | radiosonde | |||||||
資源タイプ | ||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
資源タイプ | departmental bulletin paper | |||||||
ID登録 | ||||||||
ID登録 | 10.14945/00000369 | |||||||
ID登録タイプ | JaLC | |||||||
タイトル(別言語) | ||||||||
その他のタイトル | Change in Tropospheric Zenith Delay in GPS Measurements during Passing of Fronts over Hokuriku Region, Japan | |||||||
著者 |
西村, 昌明
× 西村, 昌明× 里村, 幹夫
WEKO
211
× 島田, 誠一× 内藤, 勲夫 |
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書誌情報 |
静岡大学地球科学研究報告 巻 27, p. 37-48, 発行日 2000-07 |
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出版者 | ||||||||
出版者 | 静岡大学地球科学教室 | |||||||
NDC | ||||||||
主題Scheme | NDC | |||||||
主題 | 451 | |||||||
抄録 | ||||||||
内容記述タイプ | Abstract | |||||||
内容記述 | The most important meteorological product of the Global Positioning System (GPS) is the estimation of precipitable water vapor (PWV). Because there is a dense distribution of GPS sites in Japan and because the PWV can be estimated at short time intervals from GPS data, it is expected that GPS data may improve Japanese weather forecasting. We compared PWV estimated from GPS with PWV obtained from radiosonde data at Wajima in Japan, in order to investigate which analysis method is the most suitable for estimating PWV. PWV obtained without estimating horizontal gradients of tropospheric path delay agreed with PWV obtained from radiosonde data better than that through estimating horizontal gradients. The difference in the PWVs obtained from GPS and radiosonde is related to the wind velocity. The difference shows that the meteorological data obtained with radiosonde is not the data just above the GPS station when there is strong wind there. From this relation, we confirmed that the horizontal gradients obtained from GPS data reflect actual azimuthally inhomogeneity in water vapor. In order to investigate the relationship between PWV change obtained from GPS data and the front passage, we analyzed three sets of data during which cold fronts passed over Hokuriku region : March 19-20,August 24-25,and December 7-8 in 1998. The result in March shows a clear relationship between PWV change and front passage. The PWV increased before the front passed and it decreased clearly after the front passed. The change in August was similar to that in March, but smaller. The PWV in December does not show a clear change. These results may show that the PWV change has seasonal characteristics when a cold front passes. In the case of a stationary front passage during August 26-27,1998,the PWV increased slowly and did not change drastically. | |||||||
ISSN | ||||||||
収録物識別子タイプ | ISSN | |||||||
収録物識別子 | 03886298 | |||||||
NII論文ID | ||||||||
関連タイプ | isIdenticalTo | |||||||
識別子タイプ | NAID | |||||||
関連識別子 | 110000413398 | |||||||
NII書誌ID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AN00103190 | |||||||
フォーマット | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | application/pdf | |||||||
著者版フラグ | ||||||||
出版タイプ | VoR | |||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |