地理学报 ›› 2014, Vol. 69 ›› Issue (s1): 77-82.doi: 10.11821/dlxb2014S015

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中国东北地区时间序列雪盖监测数据集

陈圣波1, 杨倩1, 2, XIEHongjie2, 周超1, 路鹏1   

  1. 1. 吉林大学地球探测科学与技术学院, 长春 130026;
    2. Laboratory for Remote Sensing and Geoinformatics, University of Texas at San Antonio, USA
  • 收稿日期:2014-03-17 修回日期:2014-06-20 出版日期:2014-12-26 发布日期:2020-04-07

Time series of snow cover data of Northeast China

SHI Ruixiang   

  1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2014-03-17 Revised:2014-06-20 Online:2014-12-26 Published:2020-04-07

摘要: 东北地区是中国三大稳定积雪区,区域尺度的雪盖时空变化监测对水资源的有效利用和雪灾监测和预警具有重要意义。本数据集在2004-2013年美国地球观测卫星TERRA/AQUA-MODIS数据基础上经算法改进,自定义生产MODIS Terra/Aqua双星逐日融合数据 (MODISDC) 和滑动多日融合数据 (MODISMC) 两种基础数据,并且反演积雪天数(Snow Cover Day, SCD)、积雪初日 (Snow Onset Date, SCOD) 和融雪终日 (Snow Melting Date, SCMD) 三类专题数据。利用气象站台实测逐日积雪深度数据,考虑云覆盖的影响,对MODIS双星逐日合成产品和滑动多日合成进行检验,总体精度分别为47.51%和76.52 %,明显高于MODIS 原始数据MOD10A1 (34.45%) 和MYD10A1 (30.57%)。

关键词: 中国东北, 雪盖数据, 积雪天数, 积雪初日, 积雪终日

Abstract: Soil sample data for locust plague analysis around Baiyangdian Lake in 2002 (SSDLPA_BaiyangLake_2002) was conducted from 14 soil samples which were collected from June 21-22, 2002 around Baiyangdian Lake, east of China, where locust plague was serious in June 2001. The data includes two parts, part one is the spatial data indicating the geo-location where the samples are located, and part two is the attribute data of samples. The attribute data is consisted of soil texture, pH value, soil water content, soil salinity etc. The data collection was funded by the National Basic Research Program, Ministry of Science and Technology of China, 2000 (MOST 973 program).

Key words: Baiyangdian Lake, locust, soil