【摘要】：在國內(nèi)首次使用MODIS/AVHRR的后繼VIIRS產(chǎn)品,依其每日地表反射率產(chǎn)品(GIGTO-VI1~5BO)計算NDVI,結(jié)合每日陸表溫度產(chǎn)品(GMTCO-VLSTO),計算新疆農(nóng)七師125團(tuán)2015年6月29日~7月10日的TVDI結(jié)果,利用同期地面實測土壤含水率進(jìn)行驗證,R~2=0.846,兩者之間不相關(guān)的雙尾檢驗值0.001。結(jié)果表明,構(gòu)建的土壤濕度模型對農(nóng)田土壤含水率有較好的反應(yīng),并將該模型推廣到全天山北坡經(jīng)濟(jì)帶地區(qū)。利用VIIRS數(shù)據(jù)構(gòu)建的TVDI特征空間表現(xiàn)優(yōu)秀,擬合結(jié)果良好;該數(shù)據(jù)因其自身幅寬、高時間分辨率等優(yōu)勢,應(yīng)用于新疆農(nóng)田土壤濕度監(jiān)測,具有一定優(yōu)勢,可彌補(bǔ)VIIRS產(chǎn)品在我國該領(lǐng)域使用的空白。
[Abstract]:The following VIIRS products of MODIS/AVHRR were used for the first time in China. According to the daily surface reflectivity products (GIGTO-VI1~5BO) and the daily surface temperature products (GMTCO-VLSTO), the TVDI results of the 125th regiment of the 7th Agricultural Division of Xinjiang from June 29 to July 10, 2015 were calculated. The soil moisture content measured on the ground at the same time was used to verify the soil moisture content, and the uncorrelated double tail test value was 0.001. The results showed that the model of soil moisture had a good response to the soil moisture content of farmland, and the model was extended to the economic zone on the northern slope of Tianshan Mountain. The TVDI feature space constructed by VIIRS data shows excellent performance and the fitting result is good. Because of its advantages of width and high temporal resolution, the data is applied to monitoring soil moisture in Xinjiang farmland, which has some advantages. Can make up for VIIRS products in our country in this field of use of the blank.
【作者單位】： 山東農(nóng)業(yè)大學(xué)信息學(xué)院;中國科學(xué)院遙感與數(shù)字研究所;新疆應(yīng)用職業(yè)技術(shù)學(xué)院;
【基金】：科技支疆計劃項目(2014AB001) 農(nóng)業(yè)部公益性行業(yè)(農(nóng)業(yè))科研專項(201503219-3)
【分類號】：S152.71
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本文編號：2250367