發(fā)布時間：2018-06-20 02:19

  本文選題：可降水量 + 氣象數(shù)據(jù)　； 參考：《大地測量與地球動力學(xué)》2017年10期

【摘要】：通過插值、Z文件等方法,對氣象數(shù)據(jù)缺失時地基GPS反演可降水量的方法分長、短時段進行研究,比較不同方法的效果,以此選取氣象數(shù)據(jù)缺失時合適的地基GPS反演可降水量方法。實驗表明,在長時段氣象數(shù)據(jù)缺失時,可以采用三次樣條對氣象數(shù)據(jù)插值的方法;在短時段氣象數(shù)據(jù)缺失時,可以采用奇異譜迭代對氣象數(shù)據(jù)插值的方法;當(dāng)缺失數(shù)據(jù)占原數(shù)據(jù)比例較大時,可以采用Z文件法計算可降水量。
[Abstract]:By means of interpolation Z file and other methods, the method of retrieving precipitable water by ground-based GPS when meteorological data is missing is studied in long and short periods, and the effects of different methods are compared. Based on this, the suitable method for retrieving precipitable water by ground-based GPS when meteorological data is missing is selected. The experimental results show that the cubic spline interpolation method can be used to interpolate meteorological data when the meteorological data is missing in a long period of time, and the singular spectrum iteration method can be used to interpolate meteorological data when the meteorological data is missing in a short period of time. When the missing data accounts for a large proportion of the original data, the Z file method can be used to calculate the precipitable water.
【作者單位】： 同濟大學(xué)測繪與地理信息學(xué)院;現(xiàn)代工程測量國家測繪地理信息局重點實驗室;
【分類號】：P228.4;P412

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1 劉嚴(yán)萍;張飛漣;孫曉;;地基GPS可降水量用于2011年北京暴雨監(jiān)測[J];大地測量與地球動力學(xué);2013年02期

2 于勝杰;柳林濤;;無地面溫壓數(shù)據(jù)的可降水量研究[J];大地測量與地球動力學(xué);2008年05期

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本文編號：2042480