《Table 1.Summary of the surface characteristics at the four validation sites.》

《Table 1.Summary of the surface characteristics at the four validation sites.》   提示:宽带有限、当前游客访问压缩模式
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《Subdaily to Seasonal Change of Surface Energy and Water Flux of the Haihe River Basin in China: Noah and Noah-MP Assessment》


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Notes:MY,Miyun;HL,Huailai;DX,Daxing;GT,Guantao;MAT,mean annual temperature(C);MAP,mean annual precipitation(mm).

The HRB is a semi-humid and semi-arid transitional region of China(Fig.1).This region covers about 318 000km2,accounting for 3.3%of the national land area.With more than 10%of the national population in this region,including Beijing,Tianjin,and some other megacities,it has become one of the most densely populated areas of the world(Liu et al.,2013).The northern and western basin is dominated by mountains,accounting for about 60%of the whole domain,while the eastern and southeastern part is mainly distributed on the North China Plain.The annual average temperature ranges from 9.2?C to 13.5?C,and the total annual precipitation exceeds 400 mm,being spatial heterogeneous and concentrated in June to September(Table 1).With agricultural production generating a high water demand under the conditions of rapid economic development,over 12%of the satellite-detected increase in evapotranspiration can be attributed to human-induced activities in the region(Pan et al.,2017).Ultimately,investigating the water resources and analyzing the surface energy balance in this basin are important and urgent research topics.