Service Description: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. In spring 2009,
USGS continued the project and 4-band 30cm imagery was obtained for the
remainder of the state.
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.
The data are served from MassGIS' ArcGIS Online account as a tiled cached map service for fast display.
Description: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. In spring 2009,
USGS continued the project and 4-band 30cm imagery was obtained for the
remainder of the state.
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.
The data are served from MassGIS' ArcGIS Online account as a tiled cached map service for fast display.