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Grayscale Mapping of Historically Irrigated LandsUsing GIS

Author(s): Thomas C. Turney

Journal: Advances in Molecular Imaging
ISSN 2161-6728

Volume: 04;
Issue: 01;
Start page: 33;
Date: 2012;
Original page

Keywords: GIS | Geo-Referencing | Images | Water Rights | Irrigation | Area Computations | Grayscale Mapping

This document describes the use of grayscale mapping and GIS for identification of historical irrigated lands. Historical irrigated lands form the basis for water rights—a private property right in New Mexico that is bought and sold on the open market. Identification of irrigated land on historical photography is both a science and an art. Grayscale mapping of historic black and white photographs can aid in the identification of irrigated lands. GIS allows historical images to be geo-referenced and area computations to be performed on polygons that define the irrigated lands.

Tango Rapperswil
Tango Rapperswil

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