PRELIMINARY RESEARCH ON MONITORING SNOW-COVER OVER CHINA WITH AMSU DATA

Chen Aijun; Liu Yujie; Du Bingyu

Vol.16, NO.1, 2005

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Article Navigation > Journal of Applied Meteorological Science > 2005 > 16(1): 35-44

Chen Aijun, Liu Yujie, Du Bingyu. Preliminary research on monitoring snow-cover over China with AMSU data. J Appl Meteor Sci, 2005, 16(1): 35-44.

Citation:

Chen Aijun, Liu Yujie, Du Bingyu. Preliminary research on monitoring snow-cover over China with AMSU data. J Appl Meteor Sci, 2005, 16(1): 35-44.

Chen Aijun, Liu Yujie, Du Bingyu. Preliminary research on monitoring snow-cover over China with AMSU data. J Appl Meteor Sci, 2005, 16(1): 35-44.

Citation:

Chen Aijun, Liu Yujie, Du Bingyu. Preliminary research on monitoring snow-cover over China with AMSU data. J Appl Meteor Sci, 2005, 16(1): 35-44.

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PRELIMINARY RESEARCH ON MONITORING SNOW-COVER OVER CHINA WITH AMSU DATA

1.
Nanjing Institute of Meteorology, Nanjing 210044
2.
National Satellite Meteorological Center, Beijing 100081

Received Date: 2003-07-23
Rev Recd Date: 2004-02-23
Publish Date: 2005-02-28

Abstract

Abstract

The territory of China was divided into five areas, and a primary method for each area was proposed to monitoring snow-cover over China, using the data from channel 1, 2, 15 of NOAA-16 AMSU.With these methods, weekly compositive snow-cover maps of China were achieved during the period of October 1, 2001 to April 1, 2002.The comparison of the ground snow-depth record from the meteorological stations all around the country with snowcover maps mapped by NOAA Interactive Snow and Ice Mapping System (IMS), and from SSM/I (Special Sensor Microw ave Imager) data w ere used to examine the reliability of the snow-cover maps form AMSU in detail.Analysis result shows that the discrimination of AMSU snow-cover maps is good, and the correctness of AMSU snow-cover maps is close or even superior to those of IMS and SSM/I, especially during the medium-term of the snow season.
- AMSU;
- Microw ave;
- Remote sensing;
- Areal snow-cover;
- Discrimination

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References(14)

Figures and Tables

图 1 中国地区的部分AMSU周雪盖图

(a)2001年第42周, (b)2001年第46周, (c)2001年第52周, (d)2002年第2周, (e)2002年第5周, (f)2002年第13周

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图 2 AMS U监测中国主要积雪区的判识准确率

(横轴以周为时间序列, 时间从2001年10月1日至2002年4月1日)

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图 3 3种监测结果在中国主要积雪区的“雪”判识准确率（说明同图 2）

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图 4 3种监测结果在中国主要积雪区的“非雪”判识准确率（说明同图 2）

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图 5 3种监测结果在中国主要积雪区的整体判识准确率 (说明同图 2)

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图 6 青藏高原雪盖率的监测结果

(说明同图 2)

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