中山大学学报（自然科学版）Issue(1)：149-154,6.DOI:10.13471/j.cnki.acta.snus.2016.01.024
基于HJ-1A／1BCCD数据的海南岛水体提取研究
HJ-1A/1B CCD data-based water extraction in Hainan Island
摘要
Abstract
The normalized difference water index (NDWI),normalized difference water index based on blue light (NDWI-B)and combined index of NDVI and NIR were applied to water body identification (CIWI),and the discrimination to farmlands,roadways and settlement places was calculated using HJ-1A /1B CCD date of 300 samples from the Hainan Island.The discrimination of CIWI water index model is the highest,with the comprehensive discrimination of 34.61% and it is the optimal model of water rec-ognition in the Hainan Island.The best recognition threshold of CIWI water index model (168.54)was confirmed.It was used to extract water information on 24th of February and 24th of September,2014 effi-ciently,with the total island water area of 677.41 km2 and 698.62 km2 respectively.The total accuracy of water extraction reaches 92.00%.The CIWI water index model has the advantages of large discrimination of land and water and high precision extraction of water area,which can be used to extract water informa-tion of Hainan Island.This paper provides reference for optimized allocation and management and dynam-ic monitoring of flood disaster for water resources in Hainan Island.关键词
HJ-1A/1BCCD/水体指数/水体识别/CIWI/海南岛Key words
HJ-1A/1BCCD/water index/water extraction/CIWI/Hainan Island分类
农业科技引用本文复制引用
李海亮,汪秀华,罗红霞,田光辉..基于HJ-1A／1BCCD数据的海南岛水体提取研究[J].中山大学学报（自然科学版）,2016,(1):149-154,6.基金项目
海南省自然科学基金资助项目（612119）；海南省气象局科研基金资助项目 （）
