A program for handling map projections of small-scale geospatial raster data

Cartographic Perspectives
By: , and 



Scientists routinely accomplish small-scale geospatial modeling using raster datasets of global extent. Such use often requires the projection of global raster datasets onto a map or the reprojection from a given map projection associated with a dataset. The distortion characteristics of these projection transformations can have significant effects on modeling results. Distortions associated with the reprojection of global data are generally greater than distortions associated with reprojections of larger-scale, localized areas. The accuracy of areas in projected raster datasets of global extent is dependent on spatial resolution. To address these problems of projection and the associated resampling that accompanies it, methods for framing the transformation space, direct point-to-point transformations rather than gridded transformation spaces, a solution to the wrap-around problem, and an approach to alternative resampling methods are presented. The implementations of these methods are provided in an open-source software package called MapImage (or mapIMG, for short), which is designed to function on a variety of computer architectures.

Publication type Article
Publication Subtype Journal Article
Title A program for handling map projections of small-scale geospatial raster data
Series title Cartographic Perspectives
DOI 10.14714/CP71.61
Volume 71
Year Published 2012
Language English
Publisher NACIS
Contributing office(s) Earth Resources Observation and Science (EROS) Center, NGTOC Denver
Description 15 p.
First page 53
Last page 67
Online Only (Y/N) N
Additional Online Files (Y/N) N
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