NDLI: HJ satellite based mapping technologies of land use products for emergency response of agricultural disasters

Content Provider	IEEE Xplore Digital Library
Author	Chongyang Wang Dan Li Xia Zhou Siyu Huang Wei Liu Chen Weiqi Chen Shuisen
Copyright Year	2015
Description	Author affiliation: Dept. of Geogr. & Anthropology, Louisiana State Univ., Baton Rouge, LA, USA (Chen Weiqi) \|\| Guangdong Open Lab. of Geospatial Inf. Technol. & Applic., Guangzhou Inst. of Geogr., Guangzhou, China (Chongyang Wang; Dan Li; Xia Zhou; Siyu Huang; Wei Liu; Chen Shuisen)
Abstract	Accurate and reliable information on land use is a basis of agricultural disaster warning and emergency action. The natural disasters typhoon, cold disaster, drought, and so on, have great influences on agricultural production in Guangdong Province, China. Through literature analysis at home and abroad, it was pointed out that Chinese HJ satellites have become important sources of remote sensing images due to short imaging period and broad coverage (about 2 days and 700km). It also advances the free sharing of OLI data on the new generation of remote sensor of Landsat. Considering the severe orbit deviation and frequent phenology changes of agricultural land use, this paper described and laid emphasis on the necessity and perspective of developing multi-scale (1:500,000, 1:20,000, 1:50,000) agricultural land use products of Provincial-City-County within Guangdong through the usage of relatively fixed ground control point database and spectral library based advanced hierarchical classification technologies supported by HJ satellite data. Such a tendency of quick disaster emergency response for land use dynamic implies a technological focus on the usage of above-mentioned advanced HJ satellite technologies. Based on Landsat images, we also built the 11 united ground control points (40 points at most for whole Guangdong Province) and standardized the technology system of land use remote sensing mapping with the combination of spectral library-based hierarchy classification technology. Selected key technologies for enhancing land use production mapping efficiency and accuracy that involve Landsat OLI and HJ satellites are presented and discussed. The HJ satellite is an effective information source for land use dynamic mapping under emergency action such as disaster damage evaluation, which can provide a short imaging period with wide spatial coverage and enhance the ability of land use data acquirement from one to three or four times or so in one year. The building of relatively fixed ground control points increase the efficiency of province-level land use mapping from one week to two days. The proposed method is especially useful for the development of land use products in cloudy and rainy south China.
Starting Page	1
Ending Page	4
File Size	630995
Page Count	4
File Format	PDF
ISSN	2161024X
e-ISBN	9781467376631
DOI	10.1109/GEOINFORMATICS.2015.7378703
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Charge coupled devices Satellites Geology Agriculture disaster Emergency response Adaptive optics Calibration Optical sensors Mapping method HJ satellite Land use products Monitoring
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Computer Networks and Communications Information Systems Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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