文献类型：期刊文献

中文题名：基于Worldview-2数据的东洞庭湖湿地区域植被覆盖度估算研究

英文题名：Research on Vegetation Fractional Coverage Estimation of East Dongting Lake Wetland Area Based on Worldview-2 Satellite Data

作者：凌成星[1] 张怀清[1] 鞠洪波[1] 孙华[1,2]

第一作者：凌成星

机构：[1]中国林业科学研究院资源信息研究所;[2]中南林业科技大学林业遥感信息工程研究中心

年份：2012

卷号：20

期号：29

起止页码：7515-7520

中文期刊名：科学技术与工程

外文期刊名：Science Technology and Engineering

收录：CSTPCD;;北大核心:【北大核心2011】；

基金：中央级公益性科研院所基本科研业务费专项资金(IFRIT201002);国家重大专项(E0305/1112/02)资助

语种：中文

中文关键词：遥感;Worldview-2卫星;近红外2波段;植被覆盖度估算

外文关键词：remote sensing worldview-2 near-infrared 2 band vegetation fractional coverage

分类号：Q948.153;TP79

摘要：利用Worldview-2卫星数据八波段多光谱数据特点,分析与近红外波段重叠并具有更高信息量的近红外2新波段特征构建植被指数(VI)的关系。以湖南东洞庭湖湿地区域为研究区,建立近红外2新波段参与的归一化植被指数(NDVI)植被覆盖度估算模型。通过与实测样点结果比较发现:近红外2波段参与改良后的NDVI法的估算结果与实测值验证结果更加匹配,精度达到87.8%;原始近红外波段参与的NDVI法的估算结果精度最低。研究表明运用Worldview-2数据,并采用改良后的NDVI法可以大区域、准确、快速的进行植被覆盖度估算。
A new band named near-infrared 2 band to build vegetation fractional coverage （VFC） estimate model is researched. The near-infrared 2 band is a special band of Worldview-2 satellite eight band spectrum, which has higher information and overlaps original near-infrared band. Near-infrared 2 band is used to participate in the establishment NDVI （The normalized difference vegetation index） , and applyed to VFC estimate of wetland area of East Dongting Lake . With the sample points comparing results show that, Near-infrared 2 band improved VFC estimate model based optimization NDVI method, and the precision is 87.8%. This improved method can be used to accurately and quickly monitor the VFC of large area based on Worldview-2 data.