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Petroglyph National Monument Vegetation Mapping Project - Spatial Vegetation Data

Vegetation Inventory

Summary

We developed a vegetation classification and high-resolution vegetation map for Petroglyph National Monument, New Mexico, as part of the USGS Vegetation Characterization Program, a cooperative effort by the U.S. Geological Survey (USGS) and the National Park Service Inventory & Monitoring - Vegetation Mapping Program to classify, describe, and map vegetation communities in more than 280 national park units across the United States. The classification and map follow the guidelines and requirements of the national program, and are based on data collected from 499 field plots between 2007 and 2011 plus 469 independent survey points to assess the accuracy of the map and completeness of the classification.

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8.78 GB

Purpose

Overall, we indentified 33 plant associations following the guidelines of the National Vegetation Classification Standard (NVCS). Using the classification as a foundation, we constructed a vegetation map using a combination of image analysis and photo interpretation of high-resolution (0.6 m) color and color infrared aerial ortho-photography in combination with satellite imagery (DigitalGlobe QuickBird). The map legend is hierarchically structured with an upper Level 1 of nine map units corresponding more or less to the Group Level of the NVCS and a Level 2 composed of 21 nested map units defined by the plant associations from the vegetation classification.

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