Simulation of emission properties and snow-soil system status of a melting thin snow pack

Author

Pan, Jinmei ; Jiang, Lingmei ; Zhang, Lixin ; Zhao, Shaojie ; Wang, Pei ; Hao, Zhenguo ; Xiao, Lijiao ; Zhao, Tianjie ; Wu, Fengmin

Author_Institution

Inst. of Remote Sensing Applic., Beijing Normal Univ., Beijing, China

fYear

2011

fDate

24-29 July 2011

Firstpage

3198

Lastpage

3201

Abstract

Simulation of brightness temperature and related snow parameters is essential to understand the microwave emission property and its evolution with change of the snow soil system status. In this paper, a typical thin snow pack on North China Plain is measured on Nov 13-16th, 2009 at Luancheng test site HUT (Helsinki University of Technology) wet snow emission model is used to predict the brightness temperatures at 10.65, 18.7 and 36.5 GHz. A physically-based snow process model, SNTHERM (SNow THERmal Model), is applied to simulate the snow melting process. The measured snow density and grain size is compared with SNTHERM prediction and HUT inputs. Results show that the application of snow emission model and process model can explain the variation trend of wet snow emission properties well.

Keywords

snow; soil; AD 2009 11 13 to 16; HUT wet snow emission model; Luancheng test site; North China Plain; SNTHERM model; SNow THERmal Model; brightness temperature; microwave emission; snow pack; snow-soil system; Brightness temperature; Grain size; Mathematical model; Microwave radiometry; Snow; Soil; Temperature measurement; HUT model; SNTHERM model; Wet snow; passive microwave;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6049899

Filename

6049899