地球信息科学学报

地球信息科学学报 ›› 2015, Vol. 17 ›› Issue (11): 1341-1347.doi: 10.3724/SP.J.1047.2015.01341

• 全球卫星气候遥感数据 • 上一篇    下一篇

中国北部地区卫星积雪产品数据集检验

曹冬杰(), 郑照军*(), 唐世浩, 王园香   

  1. 1. 中国气象局中国遥感卫星辐射测量和定标重点开放实验室,北京 100081; 2. 国家卫星气象中心,北京 100081
  • 收稿日期:2015-03-16 修回日期:2015-09-10 出版日期:2015-11-10 发布日期:2015-11-10
  • 作者简介:

    作者简介：曹冬杰（1980-）,男,河北石家庄人,博士,助理研究员,研究方向为卫星遥感产品应用与数据分析。E-mail: caodj@cma.gov.cn

  • 基金资助:
    公益性行业（气象）科研专项“卫星遥感全球下垫面类型数据集研制“（GYHY201106014）资助;公益性行业（气象）科研专项“青藏高原遥感积雪气候数据集建设”（GYHY201206040）;新疆维吾尔族自治区科技支疆项目“北疆雪水资源遥感监测分析服务平台建设”（2013911104）

Validation of AVHRR, IMS and MODIS Snow Cover Products in North of China

CAO Dongjie(), ZHENG Zhaojun*(), TANG Shihao, WANG Yuanxiang   

  1. 1. Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration (LRCVES/CMA), National Satellite Meteorological Center, Beijing 100081, China;2. National Satellite Meteorological Center, Beijing 100081, China;
  • Received:2015-03-16 Revised:2015-09-10 Online:2015-11-10 Published:2015-11-10
  • Contact: ZHENG Zhaojun
  • About author:

    *The author: CHEN Nan, E-mail:fjcn99@163.com

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摘要：

同其他卫星相比,NOAA卫星搭载的AVHRR积雪产品,具有长达10 a的长时间序列数据集,能够应用于长时间、较大区域范围的积雪覆盖变化分析。由于不同卫星使用的反演算法,波谱宽度和大气订正等不完全相同,故需对不同卫星积雪产品数据集进行一致性检验,将卫星积雪产品更好地应用于气候分析研究。本文采用一种新的评估方法,对空间分辨率为0.05o×0.05o的AVHRR积雪产品与IMS和MOD10A1积雪产品,分别在空间和时间变化上进行对比分析,对AVHRR积雪产品数据集进行检验,发现AVHRR与MODIS积雪产品具有较好的一致性。

关键词: 积雪产品, MODIS, AVHRR, IMS, 一致性检验

Abstract:

Comparing with other satellite sensors, AVHRR has the capability to analyze more than 10 years of medium-resolution satellite imagery on a daily basis. AVHRR thereby holds a great potential to detect, map and quantify long-term environmental changes. However, different satellites use different retrieval algorithms, wavelength bandwidths and atmospheric validations. So it is important to compare different snow cover products retrieved by different satellites. Here, we describe and extensively validate the snow cover products of the historical 0.05°×0.05° AVHRR data. The spatial and seasonal validation includes a comparison with IMS and MOD10A1. It is found that the AVHRR snow products are in good accordance with the MODIS snow products. The influence of acquisition geometry and the sensor-to-sensor consistency will be discussed in future.

Key words: snow cover products, AVHRR, IMS, MODIS, consistency check (correspondence analysis)