Showing papers by "Christopher O. Justice published in 1988"
TL;DR: In this article, the authors provided preliminary evidence for the spatial resolutions required to monitor land transformations at broad scales using simulations of imagery at various spatial resolutions between 125 and 4000 m derived from Landsat MSS imagery.
Abstract: The paper provides preliminary evidence for the spatial resolutions required to monitor land transformations at broad scales. This is obtained from simulations of imagery at various spatial resolutions between 125 and 4000 m derived from Landsat MSS imagery. Consideration is given to the various types of spatial images detectable by remotely-sensed systems, as well as to the difficulties associated in disentangling permanent land transformations from shorter term changes such as phenological and interannual changes.
353 citations
01 Apr 1988
TL;DR: In this article, an empirical investigation of the required spatial resolution for MODIS-N is outlined, based on 5 LANDSAT multispectral scanner system images of the normalized difference vegetation index degraded to resolutions between 250 m and 4000 m. Pairs of images from different dates were registered and difference images were generated.
Abstract: An empirical investigation of the required spatial resolution for MODIS-N is outlined. It is based on 5 LANDSAT multispectral scanner system images of the normalized difference vegetation index degraded to resolutions between 250 m and 4000 m. Pairs of images from different dates were registered and difference images were generated. Fourier analysis indicates that resolutions finer than 1 km are highly desirable for change detection. A sensor with a resolution of 500 m is recommended as providing the best compromise between detail of changes detected and the size of the resultant data volume, but other options are also suggested.
1 citations