不同参考温度取值对三温模型反演植被蒸腾精度的影响

熊博文, 李桐, 黄樱, 鄢春华, 邱国玉

Effects of different reference temperature values on the accuracy of vegetation transpiration estimation by three-temperature model

XIONG Bo-Wen, LI Tong, HUANG Ying, YAN Chun-Hua, QIU Guo-Yu

表1 波文比系统气象观测传感器信息

Table 1 Sensor information of meteorological measurements at the Bowen ratio system

气象要素 Meteorological factor 仪器型号 Instrument model 安装高度 Height (m) 测量精度 Measuring accuracy 气温和相对湿度 Air temperature and relative humidity 225-050YA, Novalynx, Grass Valley, USA 2.0, 1.5 ±3%, ±0.6 ℃ 风速与风向 Wind speed and direction 200-WS-02, Novalynx, Grass Valley, USA 2.0 ±0.2 m∙s-1, ±3° 太阳辐射 Solar radiation PYP-PA, Apogee, Santa Monica, USA 2.0 10-40 μV·W-1·m-2 有效光合辐射 Photosynthetic active radiation QSOA-S, Apogee, Santa Monica, USA 2.0 <3% 太阳净辐射 Net solar radiation 240-100, Novalynx, Grass Valley, USA 2.0 <4% 土壤热通量 Soil heat flux HFP01, Hukseflux, Center Moriche, USA -0.05, -0.02 50 μV·W-1·m-2