车载多频率微波辐射计与观测数据应用

地基微波辐射计是被动微波遥感研究中进行地面实验的核心仪器。了解辐射计的观测原理以及实验方法对实验的设计和数据的分析具有重要意义。2007年遥感科学国家重点实验室购置了车载多频率微波辐射计,自仪器投入使用以来,获取了多种典型地表的微波辐射测量数据。基于车载多波段微波辐射计开展的地面观测实验为被动微波遥感地表参数反演算法的发展、辐射传输模型的验证等研究提供了重要的数据支持。详细介绍了车载多频率微波辐射计的配置、观测原理和定标方法,并结合地面实验,介绍了利用车载多频率微波辐射计进行实验的方法及数据的处理与应用。该研究对地基微波辐射计观测实验的设计与实施以及对辐射计数据的分析和使用有重要的参考价值。

A Truck-mounted Multi-frequency Microwave Radiometer and Application of Experimental Data

A Truck-mounted Multi\|frequency Microwave Radiometer (TMMR) was set up by State Key Laboratory of Remote Sensing Science in 2007.Up till now,brightness temperatures of several typical land surfaces have been obtained using TMMR through ground\|based experiment.The experimental data substantially supported researches in algorithm development and model validation of passive microwave remote sensing.In this paper,an overview of TMMR characteristics,calibration and operation was introduced,followed by the applications of the TMMR observing data over different land surfaces,i.e.soil,vegetation and snow.This work provides a valuable reference for designing and performing an experiment using TMMR.