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Land Cover Change in Saipan, CNMI from 1978 to 2009

机译:1978年至2009年CNMI塞班岛的土地覆被变化

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This paper focuses on the derivation of land cover information from satellite images, and the determination of land cover change in Saipan, the Commonwealth of the Northern Mariana Islands (CNMI), USA. Landsat Multispectral Scanner (MSS) images of October 17, and December 10 of 1978, and two scenes of Aster L1B imagery of March 5, 2009 are employed. This paper concentrates on moderate spatial resolution data for land cover classification and land cover change detection. Higher spatial resolution data including QuickBird, GeoEye, IKONOS data, and historical aerial photos can be employed as reference data. Geospatial technologies such as GIS, spatial analysis and remote sensing are applied to achieve the findings discussed in this paper. Based on the results, Saipan was mostly covered by forest and grassland in both years of 1978 and 2009. Developed areas increased more than 10% from 1978 to 2009, and most of the changes came from forest and grassland. The results may be applied to evaluate impacts of land cover change on water quality, ecosystems and watershed management in Saipan.
机译:本文着重于从卫星图像得出土地覆盖信息,以及确定美国北马里亚纳群岛(CNMI)联邦塞班岛的土地覆盖变化。使用了1978年10月17日和12月10日的Landsat多光谱扫描仪(MSS)图像以及2009年3月5日的Aster L1B图像的两个场景。本文集中于适度的空间分辨率数据,以进行土地覆盖分类和土地覆盖变化检测。可以将更高的空间分辨率数据(包括QuickBird,GeoEye,IKONOS数据和历史航拍照片)用作参考数据。应用地理空间技术(例如GIS,空间分析和遥感)来实现本文讨论的结果。根据结果​​,塞班岛在1978年和2009年这两年都大部分被森林和草原覆盖。从1978年到2009年,发达地区增长了10%以上,大部分变化来自森林和草原。该结果可用于评估塞班岛土地覆盖变化对水质,生态系统和流域管理的影响。

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