Spatial, Socioeconomic and Natural Resource Data Service
spatial data and GIS links
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A site for educators and others to find resources to celebrate GIS Day, Wednesday, November
Geography Awareness Week, during which users and vendors of geographic information systems (GIS)
open their doors to schools, businesses, and the general public to showcase real-world applications of this
technology. The event is principally sponsored by the National Geographic Society, the Association of American
Geographers, University Consortium for Geographic Information Science, the United States Geological Survey,
The Library of Congress, and ESRI, Inc.
Glossary Provided by ESRI, Inc.
Dictionary Collection of more than 980 terms related to geographic
information systems (GIS). Entries provide brief definitions and related
resources. Browsable; searchable by keyword, geographic region, or subject
(such as cartography or geography). Also includes a list of GIS acronyms.
From the Association for Geographic
Information and the University of Edinburgh
of Geography. .
Digital Library (University of California at Santa Barbara)
Designed to be "a working digital library with collections of
geographically referenced materials and services for accessing those
collections." Named in honor of the library of ancient Alexandria,
Egypt, the site includes, among other services, a point-and-click map
browser, a world gazetteer and a "Universe"
links page (link: http://www.alexandria.ucsb.edu/other-sites/ ) for spatial
data at other sites.
Census Bureau's TIGER
Allows you to make customized maps of areas in the United States.
Representations of Tree Species Range Maps (USGS Earth Surface Processes
Team) Maps of the
ranges of tree species in North America in the Atlas of United States
Trees, compiled by Elbert Little, Jr. of the U.S. Forest Service, and in
other publications were digitized for use in USGS' vegetation-climate
modeling studies. These digital map files are available for download as
ArcView« shapefiles (with associated data files) for each tree species.
Geographic ranges are represented as polygons.
Spatial Data-GIS Program
- Gulf of Maine
Ocean Observing System (GOMOOS) Up-to-date information on weather and
oceanographic conditions in the Gulf of Maine. Includes Hourly Buoy
Data, Ocean Conditions, Biological Data, Circulation Forecasts, Satellite
Imagery, & Wave Forecasts.
Office of Geographic Information Systems (MOGIS) operates a GIS computer
center for Maine state agencies and provides development and technical
services to encourage and guide the development of GIS in Maine for public
and private sector applications. It maintains a very elaborate Web site,
Catalog of digital geographic data is especially useful.
Image-based search system. Purpose: "to provide viewers access to vast amounts of data over slow speed
telecommunication lines and simple computer designs such as PCs and web browsers."
Landsat Thematic Mapper Mosaic page allows online viewing and
downloading (in mrsid format) of 30 meter Landsat false color satellite
images. These images cover most of the land-covered portion of the
earth and are georeferenced for use in GIS.
Biological Information Infrastructure-Geographical Structures A wide range of information from
geographical and geospatial perspectives. Examples: The Gap Analysis Program
(modeling of occurrence of species and communities); the Vegetation Mapping Program; and, Ecosystems, scheduled for a 2001 release, to identify major U.S.
Map Machine Printable maps, profiles, flags, and facts about the
countries of the world, plus star charts and satellite images.
Elevation Dataset provides seamless elevation data for the U.S. in a
raster format with a consistent datum, elevation unit, and projection.
The USGS merges the highest resolution elevation available into a seamless
raster to create NED. Data from NED are available to users through FTP
in three formats (Arc Grid, GridFloat, BIL). Data are available for
download for seamless, user-defined areas. Data sets up to 10 MB can
be downloaded at no charge.
Collection (Perry-Casta˝eda Library Map Collection). Collection of digitized
maps of general interest (world, continents, countries, states and national
parks of the USA, etc.) and a list of electronic cartographic reference resources.
has made available a digital version of every USGS
1:100,00, 1:63,360, 1:25,000, and 1:24,000 scale map
of the United States. Web site include geographic name search
facility. Date of maps varies. These are very large files. Time your
Historic USGS Maps of New England and New York
(Dimond Library, University of New Hampshire.) This online collection
of over 1100 USGS topographic maps includes complete geographical coverage
of New England from
the 1890s to 1950s. Files for Maine are listed alphabetically by
name or quadrangle;
or represented spatially by an
map of the grid of 15 minute quadrangles.
from US street addresses, intersections, or city names; provides point-to-point driving
directions; places businesses worldwide on maps.
Nautical Charts from the Office of Coast Survey, known for the useful
and necessary navigational products which are required for the safe and
efficient maritime commerce in and out of our Nation's ports.
is a software package
for use in scientific research and teaching) for
the interactive exploration, analysis and visualization of oceanographic and
other geo-referenced profile or sequence data.
Data from the
Ocean Circulation Experiment (WOCE), the
Ocean Atlas 2005,
Ocean Atlas 2001, and the
Ocean Atlas 1994 can be directly imported into ODV.
offers free viewing of NOAA nautical charts in a zoomable window.
World Cruising Guide.net
"A forum for cruising sailors to share information, local knowledge,
experiences and advice in ports and anchorages around the world."
Zoomable map in a small window, with option to see MapTech Chart Navigator«
coverage of the same area, in a separate small window.
Library Virtual Reference Desk - Maps and Geographic Data A list of
useful links, compiled by the Reference Department of the University of Maine Library.
One-Stop serves as a public gateway for improving access to geospatial
information and data under the Geospatial One-Stop e-government initiative.
It is designed to facilitate communication and sharing of geographic data
and resources to enhance government efficiency and improve citizen
services. This portal will make it easier, faster and less expensive
for all levels of government and the public to access geospatial
- GIS Data Depot
"The largest free geo-spatial data repository on the web."
Sponsored by Geocomm International Corporation. Include links to
sites (federal, state, municipal of the USA and foreign) and sites
pertinent to states
of the USA
other GIS sites A handy page provided by the Census Bureau.
National Geospatial Data Clearinghouse
is a collection of over 100 spatial data servers (each a component of the National
Spatial Data Infrastructure or NSDI), that have digital geographic data primarily for use in Geographic Information Systems.
Example: the USGS node assists users to find information about
geospatial or spatially referenced data available from USGS.
For assistance and to make
suggestions please contact
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