Multifrequency microwave emission from the dome-c area on the east antarctic plateau: Temporal and spatial variability

被引：43

作者：

Macelloni, Giovanni ^{[1
]}

Brogioni, Marco

Pampaloni, Paolo

Cagnati, Anselmo

机构：

[1] CNR, Ist Fis Applicata Nello Carrara, Sesto Fiorentino 50019, Italy

[2] Agenzia Reg Prevenz & Protez Ambientale Veneto, Ctr Valanghe Arabba, I-32020 Arabba, Italy

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2007年 / 45卷 / 07期

关键词：

advanced microwave scanning Radiometer-EOS; (AMSR-E); Antarctica; electromagnetic models; microwave radiometry;

D O I：

10.1109/TGRS.2007.890805

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The Antarctic plateau that extends for several hundred kilometers with an average altitude of close to 3000 in a.s.l. is the highest part of the east Antarctic ice cap. This area provides unique opportunities for various scientific disciplines, including glaciology and atmospheric and earth sciences. In addition, there is growing interest in using the Antarctic plateau, for calibrating and validating data of satellite-borne microwave radiometers, thanks to the size, structure, and spatial homogeneity of this area, and the thermal stability of deeper snow layers. In this paper, we analyze the temporal and spatial variabilities of multifrequency microwave emission from the area surrounding the Dome-C scientific station using Advanced Microwave Scanning Radiometer data collected throughout 2005. Moreover, a multilayer coherent electromagnetic model is used for estimating the contribution of snow layers to emission at various frequencies. The results are consistent with the physical structure of the ice sheet and with its seasonal and spatial variations.

引用

页码：2029 / 2039

页数：11

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