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KH-series satellite imagery and Landsat MSS data fusion in support of assessing urban land use growth

机译:KH系列卫星图像和Landsat MSS数据融合,以支持评估城市土地利用的增长

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Multi-temporal land use data, circa 1990 and 2000, have been analyzed an our urban growth model which identifies three levels of the urban extent - the impervious surface, the urbanized area, and the urban footprint - to account for the differing degrees of open space degradation associated with the city. The model also generates metrics such as cohesion, proximity, population densities, average openness, open space contiguity, and depth which quantify spatial characteristics that are indicative of urban sprawl. We plan on expanding this time-series further, and for additional cities, with mid-decadal, gap-filled Landsat ETM data, as well as resolution-enhanced Landsat MSS data from the 19070's. The cities used in this pilot project consisted of: (a) Kigali, Rwanda; (b) Portland, Oregon; (c) Tacoma, Washington; and (d) Plock, Poland. Based on research done in this project, complemented by results from other efforts, the Ehlers data fusion approach was used in the resolution enhancement of Landsat MSS imagery. In this paper, using Portland and Kigali as the principal examples, we discuss the procedures by which (a) the KH-series declassified military intelligence imagery was geometrically-corrected and registered to Landsat data, (b) the Ehlers Fusion of the KH-data with Landsat MSS, (c) the derivation of 1970's urban land use information, and (d) the calculation of select urban growth metrics. This paper illustrates the power of leveraging the high resolution of the military reconnaissance imagery with the multispectral information contained in the vintage Landsat MSS data in historical land use analyses.
机译:我们分析了大约1990年和2000年的多时间土地利用数据,这是我们的城市增长模型,该模型确定了城市范围的三个层次-不透水的地表,城市化的区域和城市的占地面积-以解释不同程度的开放与城市相关的空间退化。该模型还生成度量标准,例如凝聚力,邻近度,人口密度,平均开放度,开放空间连续性和深度,这些度量量化了指示城市蔓延的空间特征。我们计划使用年代际,填补空白的Landsat ETM数据以及19070年代分辨率提高的Landsat MSS数据,进一步扩展这个时间序列,并扩展到其他城市。该试点项目使用的城市包括:(a)卢旺达基加利; (b)俄勒冈州波特兰; (c)华盛顿州塔科马; (d)波兰普洛克。基于该项目的研究结果,再加上其他努力的结果,Ehlers数据融合方法被用于Landsat MSS图像的分辨率增强。本文以波特兰和基加利为主要例子,讨论了以下程序:(a)将KH系列解密的军事情报图像进行几何校正并注册到Landsat数据;(b)KH-Ehlers Fusion Landsat MSS提供的数据,(c)推导1970年的城市土地使用信息,以及(d)计算选定的城市增长指标。本文说明了军事侦察图像的高分辨率与老式Landsat MSS数据中包含的多光谱信息在历史土地使用分析中的结合力。

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