Massachusetts USGS 15cm Color Ortho Imagery (2008/2009) - MrSID Format

coq2008_15cm_sid (1214 files) 13.93MB 20.76MB 20.08MB 18.76MB 13.56MB 6.46MB 2.27MB 15.78MB 20.21MB 19.68MB 19.75MB 20.36MB 20.14MB 20.38MB 18.12MB 17.35MB 11.59MB 18.99MB 19.95MB 19.79MB 20.23MB 20.42MB 19.69MB 19.97MB 20.26MB 20.74MB 15.78MB 20.12MB 19.87MB 20.02MB 19.66MB 20.31MB 19.53MB 19.68MB 20.05MB 19.91MB 14.34MB 19.42MB 19.70MB 19.44MB 19.41MB 18.92MB 19.00MB 18.97MB 18.57MB 19.05MB 16.48MB 10.08MB 3.02MB
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Type: Dataset
Tags: MassGIS

title= {Massachusetts USGS 15cm Color Ortho Imagery (2008/2009) - MrSID Format},
journal= {},
author= {MassGIS },
year= {2008/2009},
url= {},
abstract= {In spring 2008, the U.S. Geological Survey, as part of its Boston 133 Cities Urban Area mapping program, contracted for true-color imagery covering the metropolitan Boston area and beyond. Image type for the entire region (more than 1.7 million acres) is 24-bit, 3-band (red, green, blue) natural color. Each band has pixel values ranging 0-255. Pixel resolution is 30 cm., or approximately one foot.

Additionally, 30 municipalities participated in the Boston Upgrade of the USGS project; these cities and towns contributed funding for separate flights to produce 4-band (red, green, blue, near-infrared) imagery. Pixel resolution for these images is 15 centimeters (approximately 6 inches).

In spring 2009, USGS continued the project and 4-band 30cm imagery was obtained for the remainder of the state. Additionally, 14 municipalities provided funding for 4-band 15cm imagery to cover their communities.

This digital orthoimagery can serve a variety of purposes, from general planning, to field reference for spatial analysis, to a tool for data development and revision of vector maps. It can also serve as a reference layer or basemap for myriad applications inside geographic information system (GIS) software.

Images are available for download in the MrSID Generation 2 format, at 15:1 lossy compression ratio, 3 bands (RGB), as 1,500 meters × 1,500 meters tiles (based on the 2008/2009 USGS Color Ortho Index coq2008-09_index.pdf tiling scheme; refer to the 8-digit numbers in each tile).},
keywords= {MassGIS},
terms= {},
license= {},
superseded= {}

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