Title :
The coherent microwave emission of freezing soil: Experimental research and model simulation
Author :
Shaojie, Zhao ; Lixin, Zhang ; Yongpan, Zhang ; Lingmei, Jiang ; Weipo, Xing ; Tianjie, Zhao
Abstract :
Interference effect happens in layered medium. The brightness temperature oscillation has been observed during the freezing process of over-saturated soil, which could be explained by interference effect and a three layer coherent model. The modeled BT is qualitatively in consistent with the measurement. It is shown that the interference must be considered when measuring frozen soil with ground based microwave radiometer especially when using the frequency is low.
Keywords :
freezing; land surface temperature; radar interferometry; radiometry; remote sensing by radar; soil; China; brightness temperature oscillation; coherent microwave emission; freezing process; interference effect; layer coherent model; microwave radiometer; over-saturated soil; soil freezing; Area measurement; Brightness temperature; Content addressable storage; Frequency measurement; Geography; Microwave measurements; Microwave radiometry; Radiofrequency interference; Remote sensing; Soil measurements; coherent model; freezing soil; interference effects; microwave radiometer;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5418179
