DOI: 10.1016/j.jag.2013.10.006
Scopus记录号: 2-s2.0-84897382870
论文题名: Creation of a global land cover and a probability map through a new map integration method
作者: Kinoshita T ; , Iwao K ; , Yamagata Y
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2014
卷: 28, 期: 1 起始页码: 70
结束页码: 77
语种: 英语
英文关键词: Global land cover map
; Ground truth data
; Map integration
; Probability map
Scopus关键词: accuracy assessment
; agricultural land
; grassland
; land cover
; latitude
; mapping method
英文摘要: Global land cover maps are widely used for assessment and in research of various kinds, and in recent years have also come to be used for socio-economic forecasting. However, existing maps are not very accurate, and differences between maps also contribute to their unreliability. Improving the accuracy of global land cover maps would benefit a number of research fields. In this paper, we propose a methodology for using ground truth data to integrate existing global land cover maps. We checked the accuracy of a map created using this methodology and found that the accuracy of the new map is 74.6%, which is 3% higher than for existing maps. We then created a 0.5-min latitude by 0.5-min longitude probability map. This map indicates the probability of agreement between the category class of the new map and truth data. Using the map, we found that the probabilities of cropland and grassland are relatively low compared with other land cover types. This appears to be because the definitions of cropland differ between maps, so the accuracy may be improved by including pasture and idle plot categories. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79794
Appears in Collections: 气候变化事实与影响
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作者单位: Ibaraki University, 3-21-1 Chuo Ami-machi, Ibaraki-ken 300-0393, Japan; National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba-shi, Ibaraki-ken 305-8568, Japan; National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba-shi, Ibaraki-ken 305-8506, Japan
Recommended Citation:
Kinoshita T,, Iwao K,, Yamagata Y. Creation of a global land cover and a probability map through a new map integration method[J]. International Journal of Applied Earth Observation and Geoinformation,2014-01-01,28(1)