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 1.87MB 2.28MB 7.84MB 19.05MB 18.95MB 19.55MB 19.53MB 18.73MB 18.57MB 18.79MB 18.99MB 19.31MB 19.40MB 18.92MB 14.05MB 5.16MB 16.61MB 20.15MB 12.04MB 13.13MB 19.93MB 20.07MB 19.44MB 18.85MB 19.12MB 19.01MB 19.89MB 20.19MB 19.37MB 19.85MB 19.37MB 19.85MB 11.90MB 17.17MB 19.64MB 19.91MB 20.24MB 17.26MB 19.34MB 10.89MB 6.80MB 20.14MB 19.79MB 20.19MB 19.47MB 19.42MB 19.21MB 19.66MB 19.76MB 19.76MB 19.27MB 18.85MB 19.77MB 19.70MB 19.93MB 19.92MB 20.04MB 19.77MB 20.38MB 20.53MB 20.11MB 2.84MB 19.78MB 19.40MB 19.98MB 19.61MB 18.97MB 18.54MB 19.64MB 18.65MB 19.83MB 19.50MB 15.18MB 12.31MB 12.84MB 19.31MB 19.28MB 15.11MB 13.43MB 12.28MB 16.85MB 20.63MB 20.07MB 20.19MB 20.07MB 19.49MB 19.50MB 18.99MB 19.62MB 19.56MB 18.76MB 19.60MB 19.08MB 12.55MB 9.99MB 14.27MB 4.12MB 17.20MB 19.60MB 19.74MB 19.63MB 19.99MB 19.80MB 19.62MB 19.56MB 19.27MB 18.72MB 19.40MB 20.04MB 17.39MB 10.28MB 16.09MB 20.35MB 20.14MB 19.99MB 20.12MB 19.63MB 20.06MB 19.62MB 19.58MB 19.46MB 19.28MB 19.99MB 19.42MB 16.82MB 20.77MB 20.51MB 20.44MB 20.59MB 20.43MB 20.47MB 20.30MB 20.07MB 20.31MB 19.20MB 6.60MB 15.54MB 12.29MB 9.14MB 9.51MB 20.36MB 20.22MB 20.25MB 20.00MB 18.53MB 2.45MB 20.24MB 20.30MB 20.49MB 21.04MB
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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= {}