發(fā)布時間：2018-04-26 08:59

  本文選題：地基GPS + 無線電探空��； 參考：《大地測量與地球動力學(xué)》2016年12期

【摘要】：利用無線電探空和地基水汽輻射計的觀測數(shù)據(jù),對中國沿海GPS觀測網(wǎng)9個觀測站反演的1h間隔可降水量進(jìn)行對比分析。與無線電探空結(jié)果相比,地基GPS反演可降水量的年相關(guān)系數(shù)在0.95以上,平均偏差自北向南呈逐漸增大的趨勢。除西沙站外,其他站的年平均偏差在2mm之內(nèi),均方差在3mm之內(nèi),且平均偏差和均方差存在季節(jié)性變化。與地基水汽輻射計結(jié)果相比,地基GPS反演可降水量同樣具有很好的正相關(guān),同步觀測期間兩者相關(guān)系數(shù)為0.989,兩者的平均偏差為1.84mm,偏差的均方差為2.06mm,且7~9月的月均方差較大。
[Abstract]:Based on the observational data of radiosonde and ground-based water vapor radiometer, the 1 h precipitable water volume retrieved by 9 stations of GPS observation network in coastal China is compared and analyzed. Compared with radiosonde results, the annual correlation coefficient of precipitation retrieved by ground GPS is more than 0.95, and the average deviation increases gradually from north to south. Except Xisha station, the annual mean deviation is within 2mm, the mean deviation is within 3mm, and the mean deviation and mean variance have seasonal variation. Compared with the results of the water vapor radiometer, the GPS inversion of precipitable water on the ground also has a good positive correlation. The correlation coefficient is 0.989, the average deviation is 1.84 mm, the mean deviation is 2.06 mm, and the monthly mean deviation from July to September is larger.
【作者單位】： 山東科技大學(xué)測繪科學(xué)與工程學(xué)院;國家海洋局第一海洋研究所;國家海洋環(huán)境預(yù)報中心;
【基金】：國家973計劃(2012CB957704) 中國科學(xué)院海洋環(huán)流與波動重點實驗室開放基金(KLOCAW1410)~~
【分類號】：P228.4;P412

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本文編號：1805340