应用AMSU资料监测中国地区雪盖的初步研究  

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

作　　者：陈爱军[1] 刘玉洁[2] 杜秉玉[1] 

机构地区：[1]南京气象学院,南京210044 [2]国家卫星气象中心,北京100081

出　　处：《应用气象学报》2005年第1期35-44,共10页Journal of Applied Meteorological Science

基　　金："国家高技术研究发展计划 ( 863计划 )--多光谱卫星遥感雪盖范围;雪深和雪水当量 ( 2 0 0 2AA1 3 5 2 5 0 )"课题资助;"我国西北地区生态气候环境监测预测方法研究"课题共同资助

摘　　要：根据微波遥感积雪的原理 ,提出了利用NOAA 1 6AMSU的 1通道 ( 2 3.8GHz)、2通道( 31 .4GHz)和 1 5通道 ( 89.0GHz)等 3个通道监测中国五大区域雪盖范围的初步判识方法。由该方法制作合成了 2 0 0 1年 1 0月 1日至 2 0 0 2年 4月 1日中国地区的周积雪覆盖监测图 ,与来自全国气象台站的地面积雪观测记录以及美国人机交互式冰雪制图系统 (InteractiveSnowandIceMappingSystem ,IMS)的雪盖图、SSM/I (SpecialSensorMicrowaveImager)雪盖图的比较结果表明 :AMSU监测结果不仅具有比较高的准确性 ,而且其准确性和可靠性达到甚至优于其它两种积雪监测结果 (尤其是雪季中期 )。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 snow-cover maps mapped by NOAA Interactive Snowand Ice Mapping System (IMS), and from SSM/I (Special Sensor Microwave Imager) data were 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.

关 键 词：雪盖 AMSU 积雪 中国地区 观测记录 气象台站 测图 监测结果 初步研究 中期 

分 类 号：P426.63[天文地球—大气科学及气象学]