Cedar Island Division of Chincoteague National Wildlife Refuge in VirginiaEntry ID: USFWS_CSDS_cdibnd
Abstract: This data set contains boundary layers for the Cedar Island
Division of the Chincoteague National Wildlife Refuge in Virginia.
National Wildlife Refuges are federal lands managed by the U.S. Fish
and Wildlife Service (USFWS). The primary source for boundary
information is the USFWS Realty program (status maps, legal
surveys). A joint effort between the Region 5 (northeast - ME, MA, NH,
VT, RI, ... CT, NY, PA, NJ, MD, VA, WV) GIS Lab and Realty program, has
resulted in digital refuge boundaries for all refuges in the northeast
at a 1:24,000 scale.
The purpose of this data is to serve as a spatial reference of refuge
boundaries for other data layers in GIS and mapping applications. It
is specifically not intended to be used as a land survey or
representation of land for conveyance or tax purposes. The Realty
Survey program in USFWS is developing cadastral information (boundary
and acreage data) appropriate for legal purposes. It is expected that
data created in this project will be replaced as better survey
information is collected.
Status maps were registered to geographic coordinates, boundaries
digitized and labeled, then stepped through 3 levels of quality review
for spatial and thematic accuracy.
Refuge boundaries define areas that are approved by U.S. Congress for
acquisition in the National Wildlife Refuge System, or are currently
owned by USFWS. Arcs are coded with an item "boundary" that the type
of boundary line and polygons are coded with an item "status" that
describes their ownership status.
[Summary provided by U.S. Fish & Wildlife Service]
(Click for Interactive Map)
ISO Topic Category
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Distribution Media: FTP
Distribution Size: 950 MB
Role: SERF AUTHOR
Phone: (301) 614-6898
Email: Tyler.B.Stevens at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
Province or State: MD
Postal Code: 20771
Role: TECHNICAL CONTACT
Email: seadas at seadas.gsfc.nasa.gov
Fu, G., Baith, K. S., and McClain, C. R., 1998, "SeaDAS: The SeaWiFS Data Analysis System", Proceedings of "The 4th Pacific Ocean Remote Sensing Conference", Qingdao, China, July 28-31, 1998, 73-79.
Nakajima, T., and M. D. King, "Determination of the optical thickness and effective particle radius of clouds from reflected solar radiation measurements, I, Theory," J. Atmos. Sci., 47, 1878-1893, 1990.
Gordon, H.R., G.C. Boynton, W.M. Balch, S.B. Groom, D.S. Harbour, and T.J. Smyth , Retrieval of Coccolithophore Calcite Concentration from SeaWiFS Imagery, Geophys. Res. Lett. 28: 1587/1590, 2001.
Franz, B., Ainsworth, E., Bailey, S., "SeaWiFS vicarious calibration: an alternative approach which makes use of simultaneous in situ observations of oceanic and atmospheric optical properties.", NASA/TM-2001-209982, March, 2001.
Maritorena S., D.A. Siegel & A. Peterson, Optimization of a Semi-Analytical Ocean Color Model for Global Scale Applications, Applied Optics, 41(15): 2705-2714, 2002.
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