Coastal
Resource Inventory Tutorial
2.
Learn More About Land Cover
Metadata |
Links | Legend | Larger Map
What
is it?
The land cover map was created from 2002 satellite imagery. Each pixel
(picture element, or "square" on the image) represents a 30
meter by 30 meter (approximately 100 feet by 100 feet, or a quarter
acre) area on the ground. A semi-automated procedure using both computers
and professional judgment was used to turn the satellite image into
the map shown. As with most procedures that turn an image into a map,
some error exists and a few pixels are undoubtedly mis-classified. However,
using satellite imagery to create land cover maps is one of the most
accurate, cost effective, and easily repeatable methods for creating
region-wide, multi-temporal data sets.
Why
is it important?
Land cover is useful for showing and quantifying what exists on the
earth's surface within each of Connecticut's towns. A synoptic, birds-eye
view reveals both where development is and, maybe more importantly,
where development isn't. By looking at the broad scale patterns of development,
you can better appreciate how past decisions have influenced development
and what future changes need to be made to either protect sensitive
areas, or encourage development in areas best suited.
What
else should I consider?
Since the pixel resolution of this data is 30 meters, there are many
things you may not be able to see. For example, while this information
may be great for detecting large forest patches or wetland complexes,
it would be impossible to detect your backyard swimming pool, a car
parked in your driveway or to survey small vernal pools in your study
area. It is important to understand the limitations of not only the
land cover data, but all digital information, so that you do not use
it for a purpose for which it is not suited.
| Metadata |
| 2002
Land Cover |
|
| CT
DEP Data Layers |
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Watershed
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2002
Satellite-derived Land Cover
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