Study on Remote Sensing Estimation of Regional Evapotranspiration Based on GF-5B VIMI Data and the SEBS Model

传感器	获取时间	坐标位置	航带号
GF-5B VIMI	2022-05-23	北纬29°24'0''，东经106°18'0''	003759_L10000135866
GF-5B VIMI	2023-05-29	北纬29°30'0''，东经106°24'0''	009164_L10000338000
GF-5B VIMI	2023-09-01	北纬29°24'0''，东经106°18'0''	010548_L10000383984

Table 2. Comparison of estimated ET and measured ET by SEBS model at different dates
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Table 2. Comparison of estimated ET and measured ET by SEBS model at different dates
日期 SEBS模型估算ET/(mm·d⁻¹) 实测ET/(mm·d⁻¹)
2022-05-23 9.18 6.10
2023-05-29 5.78 4.52
2023-09-01 7.31 5.97

Table 3. The daily average evapotranspiration for each land use type

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Table 3. The daily average evapotranspiration for each land use type

土地利用类型	3个时相的蒸散发量ET/(mm·d⁻¹)
土地利用类型	2022-05-23	2023-05-29	2023-09-01
农田	9.32	5.65	7.05
森林	10.11	5.82	8.01
草原	9.18	4.30	6.49
水体	11.21	7.69	10.13
裸地	7.63	4.22	6.34
建筑用地	8.21	5.46	6.85

Table 4. Statistical data of NDVI in Dadukou district, Chongqing city
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Table 4. Statistical data of NDVI in Dadukou district, Chongqing city
日期最大值最小值均值标准差
2022-05-23 0.521 −0.411 0.095 0.270
2023-05-29 0.286 −0.250 −0.024 0.155
2023-09-01 0.587 −0.558 0.139 0.331

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Lijuan ZHANG, Haiyong DING, Chao ZHENG, Jiayu LIN, Lingfeng YIN. Study on Remote Sensing Estimation of Regional Evapotranspiration Based on GF-5B VIMI Data and the SEBS Model[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(5): 101

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