Application of GPS Water Vapor Information to Interdisciplinary Studies

GPS水汽信息在跨学科研究中的应用

• 批准号: 10559023
• 负责人: NAITO Isao
• 金额: $ 3.26万
• 依托单位: National Astronomical Observatory
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10559023/
• 关键词: GPS; Water Vapor; Precipitation; GPS meteorology; 水蒸

In order to apply GPS precipitable water vapor (PWV information retrieved routinely from a nationwide GPS array called GEONET over the Japanese Island, conducted by the Geographical Survey Institute (GSI) of Japan, to interdisciplinary studies such as effects of the global warming on precipitation increase, the water vapor correction for remote-sensing, air pollution studies, etc., (1) detailed evaluation of GPS PWV from GEONET, (2) reanalysis of GPS PWV independent from the routine analysis in GSI, and (B) construction of internet accessible GPS PWV information data base over the Japanese Islands are done in this study. The results are as follows. Concerning (l), GPS PWV from GEONET have effects of ocean tidal loading. Concerning (2), reanalysis of GPS PWV by using GIPSY software with and without atmospheric delay gradient model show almost same accuracy and have higher reliability than the routinely analyzed GPS PWV in GSI. Concerning (3), internet accessible GPS PWV data base is constructed and will be opened to users. The reanalyzed GPS PWV data by GIPSY software will also be opened to users through the data base.

为了将从日本地理调查研究所在日本岛上空建立的称为GEONET的全国性GPS阵列中定期检索的GPS可降水量（PWV）信息应用于跨学科研究，如全球变暖对降水量增加的影响、遥感水汽校正、空气污染研究等，(1)（2）在GSI常规分析的基础上对GPS PWV进行再分析;（B）建立日本列岛GPS PWV信息数据库。结果如下。关于（1），来自GEONET的GPS PWV具有海洋潮汐负荷的影响。关于（2），用GIPSY软件再分析的GPS PWV与GSI常规分析的GPS PWV相比，在有无大气延迟梯度模型的情况下，其精度几乎相同，可靠性更高。关于（3），建立了可通过互联网访问的GPS PWV数据库，并将向用户开放。GIPSY软件重新分析的GPS PWV数据也将通过数据库向用户开放。

项目成果

I.Naito et al: "Global Positioning System Project to Improoe Japanese Weather,Earthquake Predictions" Eos. 79. 301-311 (1998)

I.Naito 等人：“改善日本天气、地震预测的全球定位系统项目”Eos。

I. Naito et al: "Global Positioning System Project to improve Japanese weather,* prediction"EOS. 79. 301-311 (1998)

I. Naito 等人：“改善日本天气*预测的全球定位系统项目”EOS。

I.Naito et al: "Global Positioning System Project to improve Japanese Weather, Earthquake Prediction"Eos. 79. 301-303 (1998)

I.Naito 等人：“改善日本天气、地震预测的全球定位系统项目”Eos。

T. Tuda et al: "GPS meteorology project of Japan-Exploring * of *"Earth Planets Space. 50. I-V (1998)

T. Tuda等人：“日本GPS气象项目-探索*”地球行星空间*。

T.Tsuda et al: "GPS meteorology project of Japan-Exploriry frontiers of Geodesy" Earth,Planets and Speal. 50. I-V (1998)

T.Tsuda等：“日本GPS气象学项目-大地测量学前沿的探索”地球、行星和Speal。