發(fā)布時(shí)間：2019-03-10 18:07

【摘要】：介紹了地基GPS反演大氣可降水量(PWV)的基本原理;采用GAMIT軟件對(duì)5個(gè)IGS站進(jìn)行解算,提取了PWV。在此基礎(chǔ)上對(duì)試驗(yàn)時(shí)段內(nèi)北京有霧霾和無霧霾的時(shí)段進(jìn)行了天頂對(duì)流層延遲(ZTD)與空氣質(zhì)量指數(shù)(AQI)、PWV與細(xì)顆粒物(PM2.5)的時(shí)序特征分析。結(jié)果表明,在霧霾生成到消散的各階段,AQI與ZTD、PM2.5與PWV具有極強(qiáng)的相關(guān)性;AQI與ZTD的相關(guān)系數(shù)在0.53以上,最高達(dá)0.93;PM2.5與PWV的相關(guān)系數(shù)大于0.52,個(gè)別時(shí)段高達(dá)0.93。在無霾情況下,AQI與ZTD、PM2.5與PWV也有較高的相關(guān)性,相關(guān)系數(shù)分別可達(dá)0.83和0.82;但在個(gè)別時(shí)段,它們的相關(guān)性較弱,相關(guān)系數(shù)分別僅為0.16和0.28。
[Abstract]:This paper introduces the basic principle of ground-based GPS inversion of atmospheric precipitable (PWV), calculates five IGS stations with GAMIT software, and extracts PWV.. On this basis, the temporal characteristics of zenith tropospheric delay (ZTD), air quality index (AQI), PWV and fine particulate matter (PM2.5) in Beijing with and without haze during the experiment period were analyzed. The results show that there is a strong correlation between AQI and ZTD,PM2.5 and PWV, the correlation coefficient between AQI and ZTD is above 0.53, the highest is 0.93, and the correlation coefficient between AQI and PWV is higher than 0.53 when haze is generated to dissipate, and the correlation coefficient between AQI and ZTD is 0.93. The correlation coefficient between PM2.5 and PWV is greater than 0.52, and it is up to 0.93. Under the condition of no haze, the correlation coefficients of AQI, ZTD,PM2.5 and PWV were 0.83 and 0.82 respectively, but the correlation coefficients of them were only 0.16 and 0.28 respectively.
【作者單位】： 桂林理工大學(xué)測(cè)繪地理信息學(xué)院;廣西空間信息與測(cè)繪重點(diǎn)實(shí)驗(yàn)室;東海航海保障中心上海海事測(cè)繪中心;
【基金】：國家自然科學(xué)基金(41541032;41064001) 廣西自然科學(xué)基金(2015GXNSFAA139230) 廣西空間信息與測(cè)繪重點(diǎn)實(shí)驗(yàn)室資助課題(14-045-24-10,15-140-07-11)
【分類號(hào)】：P228.4;X51
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本文編號(hào)：2437860