将计算时段的径流总量,平铺在水文测站以上流域面积上所得的水层厚度,称为径流深度,以毫米计。其计算式为: y=W/(F×1000000)×1‰ 式中,W为径流总量(立方米);F为流域面积(平方公里)。
同时多年冻土抑制水分向深层土壤的下渗,增加了径流深度和蒸腾发强度。
Ever frozen ground prevents water from infiltrating to deep layer, which increases the depth of runoff and intensity of transpiration.
沿海水域的亮度差异可能是由于其他因素所导致,包括淡水径流,强劲的水流,水的深度以及清澈度。
Differences in brightness in coastal area waters may be due to other factors, including freshwater runoff, strong currents, and water depth and clarity.
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