埃塞俄比亚东部德雷达瓦市城市时空扩张的数据。
Data on spatiotemporal urban sprawl of Dire Dawa City, Eastern Ethiopia.
作者信息
Taffa Chaltu, Mekonen Teferi, Mulugeta Messay, Tesfaye Bechaye
机构信息
Adama Science and Technology University, Ethiopia.
Kotebe Metropolitan University, Ethiopia.
出版信息
Data Brief. 2017 Apr 13;12:341-345. doi: 10.1016/j.dib.2017.04.008. eCollection 2017 Jun.
The data presented in this paper shows the spatiotemporal expansion of Dire Dawa City (eastern Ethiopia) and the ensuing land use land cover changes in its peri-urban areas between 1985 and 2015. The data were generated from satellite images of Thematic Mapper (TM), Enhanced Thematic Mapper-Plus (ETM+) and OLI (Operational Land Image) with path/raw value of 166/053 by using Arc GIS 10.1 software. The precision of the images was verified by geolocation data collected from ground control points by using Geographic Positioning System (GPS) receiver. Four LULC classes (built up area, vegetation, barren land and farmland) with their respective spatiotemporal dimensions were clearly identified in the analysis. Built up area had shown an overall annual increment of 15.8% (82 ha per year) from 517 ha in 1985 to 2976 ha in 2015. Expansion took place in all directions but it was more pronounced along the main road towards other nearby towns, recently established business/service areas and the Industrial Park. Barren land, farmland and vegetation areas showed speedy decline over the years.
本文所呈现的数据展示了迪雷达瓦市（埃塞俄比亚东部）的时空扩张以及1985年至2015年间其城郊地区随之发生的土地利用和土地覆盖变化。这些数据是通过使用Arc GIS 10.1软件，从主题测绘仪（TM）、增强型主题测绘仪升级版（ETM+）和陆地成像仪（OLI）的卫星图像生成的，路径/行号为166/053。图像的精度通过使用全球定位系统（GPS）接收器从地面控制点收集的地理定位数据进行了验证。分析中明确识别出了四类土地利用和土地覆盖（建成区、植被、裸地和农田）及其各自的时空维度。建成区总体上呈现出每年15.8%（每年82公顷）的增长，从1985年的517公顷增加到2015年的2976公顷。扩张向各个方向进行，但沿着通往其他附近城镇、最近建立的商业/服务区和工业园区的主要道路更为明显。多年来，裸地、农田和植被面积迅速减少。
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