微波遥感土壤湿度研究进展

土壤湿度是陆地和大气能量交换过程中的重要因子，并对陆地表面蒸散、水的运移、炭循环有很强的控制作用。利用微波遥感大面积监测土壤湿度在水文、气象和农业科学领域具有较大的应用潜力。微波遥感监测土壤湿度具有全天时、全天候并对地物有一定的穿透能力等特点，突破了传统测量方法和光学遥感获取土壤湿度的局限。微波遥感已逐渐成为目前监测土壤湿度的热门方法之一。

Advances in microwave remote sensing soil moisture measurements

As the important factor in the exchange process between the solid earth surface and the atmosphere,soil moisture has effect on the land surface hydrology,the remotion of water,C-circulation.The use of microwave remote sensing has demonstrated their potential for measurements of large area soil moisture.Microwave remote sensing measure soil moisture all day and night,and penetrate through some surface objects.It breaches the limit through traditional method of measure and optics remote sensing about receiving soil moisture.At present the microwave remote sensing gradually becomes one of the best technique in soil moisture measurements.