TITLE
Hubbard Brook National Land Cover Dataset 1992
PRINCIPAL INVESTIGATOR(s)
John
Campbell
USDA Forest Service
PO Box 640
Durham, NH 03824
USA
Phone: (603) 868-7643
The National Land Cover Dataset was compiled from Landsat satellite TM imagery
(circa 1992) with a spatial resolution of 30 meters and supplemented by various
ancillary data (where available). The analysis and interpretation of the satellite
imagery was conducted using very large, sometimes multi-state image mosaics (i.e. up
to 18 Landsat scenes). Using a relatively small number of aerial photographs for
'ground truth', the thematic interpretations were necessarily conducted from a
spatially-broad perspective. Furthermore, the accuracy assessments (see below)
correspond to 'federal regions' which are groupings of contiguous states. Thus, the
reliability of the data is greatest at the state or multi-State level. The
statistical accuracy of the data is known only for the region. Important Caution
Advisory With this in mind, users are cautioned to carefully scrutinize the data to
see if they are of sufficient reliability before attempting to use the dataset for
larger-scale or local analyses. This evaluation must be made remembering that the
NLCD represents conditions in the early 1990s. The New Hampshire portion of the NLCD
was created as part of land cover mapping activities for Federal Region I that
includes the States of Connecticut, Maine, Vermont, Rhode Island, New Hampshire, and
Massachusetts. The NLCD classification contains 21 different land cover categories
with a spatial resolution of 30 meters. The NLCD was produced as a cooperative
effort between the U.S. Geological Survey (USGS) and the U.S. Environmental
Protection Agency (USEPA) to produce a consistent, land cover data layer for the
conterminous U.S. using early 1990s Landsat thematic mapper (TM) data purchased by
the Multi-resolution Land Characterization (MRLC) Consortium. The MRLC Consortium is
a partnership of federal agencies that produce or use land cover data. Partners
include the USGS (National Mapping, Biological Resources, and Water Resources
Divisions), USEPA, the U.S. Forest Service, and the National Oceanic and Atmospheric
Administration. The original NLCD grid was projected into UTM Zone 19 and was
clipped to a box surrounding the USDA Forest Service, Hubbard Brook Experimental
Forest.
USDA Forest Service
PO Box 640
Durham, NH 03824
USA
Phone: (603) 868-7643
BEGIN DATE
END DATE
LOCATION
Hubbard Brook
West bounding coordinate: -71.829489
East bounding coordinate: -71.661710
North bounding coordinate: 43.977519
South bounding coordinate: 43.898077
East bounding coordinate: -71.661710
North bounding coordinate: 43.977519
South bounding coordinate: 43.898077
DATA ACCESS GUIDELINES
CONTACT PERSON
John
Campbell
USDA Forest Service
USDA Forest Service
Northeastern Research Station
Attn: John Campbell
271 Mast Road
Durham, NH 03801
USA
Phone: (603) 868-7643
Fax: (603) 868-7640
Email: jlcampbell@fs.fed.us
USDA Forest Service
USDA Forest Service
Northeastern Research Station
Attn: John Campbell
271 Mast Road
Durham, NH 03801
USA
Phone: (603) 868-7643
Fax: (603) 868-7640
Email: jlcampbell@fs.fed.us