基于Sentinel-1及Landsat 8数据的黑河中游农田土壤水分估算
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王树果,马春锋,赵泽斌,魏龙
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Estimation of Soil Moisture of Agriculture Field in the Middle Reaches of the Heihe River Basin based on Sentinel-1 and Landsat 8 Imagery
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Shuguo Wang,Chunfeng Ma,Zebin Zhao,Long Wei
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表1 Sentinel-1、Landsat 8 数据获取日期及地面验证数据的观测日期及有效样本数
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Table 1 Acquisition dates of Sentinel-1 and Landsat 8 images, and acquisition dates and effective sample size of ground measurements
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Sentinel-1获取日期 (D1, YYYYMMDD) | Landsat 8日期(D2, DOY) | D1-D2 | 地面土壤水分 (观测样本数) | 植被含水量观测日期 (观测样本数) | 20141024 | 2014301 | -4 | 超级站(1) | | 20141031 | 2014301 | 3 | 超级站(1) | | 20141112 | 2014317 | -1 | 超级站(1) | | 20141117 | 2014317 | 4 | 超级站(1) | | 20141124 | 2014333 | -5 | 超级站(1) | | 20141201 | 2014333 | 2 | 超级站(1) | | 20141211 | 2014349 | -4 | 超级站(1) | | 20141218 | 2014349 | 3 | 超级站(1) | | 20150111 | 2015016 | -5 | 超级站(1) | | 20150118 | 2015016 | 2 | 超级站(1) | | 20150216 | 2015048 | -1 | 超级站(1) | | 20150221 | 2015048 | 4 | 超级站(1) | | 20150228 | 2015064 | -5 | 超级站(1) | | 20150307 | 2015064 | 2 | 超级站(1) | | 20160505 | 2016131 | -5 | 超级站(1) | | 20160512 | 2016131 | 2 | 超级站(1)+WSN(9) | 20160515(10) | 20160529 | 2016147 | 3 | 超级站(1)+WSN(9) | 20160530(10) | 20160902 | 2016243 | 3 | 超级站(1)+WSN(9) | 20160830(10) |
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