数据集(库)目录

出版期刊|区域分类

2021年第12期
2019年第02期
数据详情

基于MOD13Q1的蒙古国植被物候数据集(2001-2019)


邵亚婷1王卷乐*1
1中国科学院地理科学与资源研究所,北京100101

DOI:10.3974/geodb.2022.03.05.V1

出版时间:2022年3月

网页浏览次数:1141       数据下载次数:46      
数据下载量:12921.73 MB      数据DOI引用次数:

关键词:

蒙古,植被物候,返青期,枯黄期,生长季长度

摘要:

蒙古国是蒙古高原的重要组成部分,是全球生态环境变化的重要响应区域。基于TIMESAT平台,运用MOD13Q1产品中的归一化植被指数(NDVI)数据,利用动态阈值法获取蒙古国植被物候参数信息,即春天NDVI值达到上升过程中NDVI变化振幅的50%时,判定植物进入返青期;秋天NDVI值下降至NDVI变化振幅的55%时,判定植物进入枯黄期。生长季长度即植被从返青期到枯黄期的天数。数据结果表明,2001-2019年,蒙古国多年平均的植被生长季长度为90-207 d。数据集内容包括2001-2019年逐年和多年平均的蒙古国植被返青期(SOS)、植被枯黄期(EOS)和植被生长季长度(LOS)的数据。数据集空间分辨率为250 m,存储为.tif格式,由60个数据文件组成,数据量为944 MB(压缩为3个文件,844 MB)。基于该数据集的研究论文发表在《地理研究》2021年40卷11期。

基金项目:

国家自然科学基金(32161143025,41971385);中国科学院(XDA2003020302)

数据引用方式:

邵亚婷, 王卷乐*. 基于MOD13Q1的蒙古国植被物候数据集(2001-2019)[J/DB/OL]. 全球变化数据仓储电子杂志(中英文), 2022. https://doi.org/10.3974/geodb.2022.03.05.V1.

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数据下载:

序号 数据名 数据大小 操作
1 VPD_EOS_2001-2019.rar 262225.88KB
2 VPD_LOS_2001-2019.rar 332173.23KB
3 VPD_SOS_2001-2019.rar 270242.63KB
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