An RSS feed describing the ten latest geospatial data layers ingested into the GLIN enterprise GIS http://gis.glin.net/ogc/ 2006-11-16T12:47:24-04:00 http://www.great-lakes.net/news/ http://gis.glin.net/ogc/ text/html 20061116 http://gis.glin.net/ogc/services.php#great_lakes_coastal_wetlands The Great Lakes Coastal Wetland Inventory was developed through the Great Lakes Coastal Wetland Consortium (GLCWC) as a bi-national initiative to create a single, hydrogeomorphically classified inventory of all coastal wetlands of the Great Lakes Basin. This inventory is built upon the most comprehensive coastal wetland data currently available for the Great Lakes and connecting channels. For the U.S., National Wetlands Inventory (NWI); Wisconsin Wetland Inventory (WWI); Ohio Wetland Inventory (OWI); and U.S. Fish and Wildlife Service (USFWS) reports and corresponding topographic maps by Charles E. Herdendorf which describe coastal wetlands in the Great Lakes Basin (Herdendorf Wetland Inventory, HWI); are the major datasets included. Additional wetland projects were utilized for each lake if available. The Canadian dataset is built off 'The Ontario Great Lakes Coastal Wetland Atlas'. Published in March 2003, this document summarized all known data to-date for coastal wetlands and identifies numerous data gaps in the current information. Ontario Ministry of Natural Resources (OMNR) digital Evaluated Wetlands polygon data provided the spatial extents for digital wetland boundaries where available. Data gaps have been filled in using air photograph interpretation following National Biological Service guidelines, and digitization techniques following GLCWC guidelines. The inventory contains the spatial extents, hydrogeomorphic classification, name, centroid position and area measurement for all known coastal wetlands of the Great Lakes basin. Hydrological modifiers imposing on each system are also identified. Hydrogeomorphology dictates wetland delineations per criteria developed by the Great Lakes Coastal Wetlands Consortium (GLCWC) working group and described in the Great Lake Commission's (GLC) Great Lakes Coastal Wetlands Classification First Revision (July 2003; original November 2001). This data is not intended for use finer than scale of sources used. The Inventory includes both a point, GLCWC_CWI and polygon coverage, GLCWC_CWI_pt. text/html 20061116 http://gis.glin.net/ogc/services.php#leb_mi_inland_lks_polys_dwa This data set contains the spatial representations for the locations of inland lakes in Michigan, as released by Jim Breck, Michigan Department of Natural Resources, at the Institute for Fisheries Research. This Shapefile is based upon an earlier version (year unknown, but likely ~200) of Michigan's statewide Hydrography Framework, which is based upon TIGER/Line Files, MDNR, MIRIS files, and the MALI data set. Lake polygons present in this layer were edited (shape, attributes, location, duplicate representations for a lake existing in multiple counties), created for lakes that were determined to be missing, and adjusted to reflect our current knowledge of the waterbodies throughout the state. For each lake (~10 acres or larger), a \"New-Key\" was assigned, based upon Humphrys and Green (1962). This unique code (e.g., 72-117), is based on teh county numbers and lake numbers assigned by Humphrys and Green (1962). It serves to link these spatial representations to multiple data sets containing information pertaining to water quality, depth, origin, etc. text/html 20061024 http://gis.glin.net/ogc/services.php#gl_zebra_mussel_distribution The concern caused by the explosive spread of the zebra mussel, (Dreissena polymorpha), within the United States resulted in passage of the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990 (P.L. 101-646). The impact of this biofouling pest on the economy and ecological processes in the U.S. and Canada has required prompt action on a large scale to prevent further infestations and minimize ecological degradation. This map layer is a compilation of reports of confirmed zebra mussel sightings in the United States from 1988 to February 2005. It provides geographical and historical information to show distribution over time. The reports came from a variety of Federal, State, and municipal agencies, public utilities, universities, engineering and private consultant firms. The locations of confirmed sightings were registered at 1:100,000-scale on EPA Reach File Version 3.0 and are maintained as an ArcInfo export file. This is a revised version of the May 2003 map layer. text/html 20061002 http://gis.glin.net/ogc/services.php#gl_water_level_observation_network These data show the spatial distribution of individual coastal ocean observing systems in the United State text/html 20061113 http://gis.glin.net/ogc/services.php#gl_ndbc_buoys_and_c-man_stations These data show the spatial distribution of individual coastal ocean observing systems in the Great Lakes. text/html 20061002 http://gis.glin.net/ogc/services.php#northeast_ohio_managed_land text/html 20061108 http://gis.glin.net/ogc/services.php#lm_diporeia Diporeia spp. data were acquired from the Great Lakes Environmental Research Laboratory (GLERL) details of data collection are presented by Nalepa et al. (2000). Samples were collected at 85 sites during two sampling cruises (late July/early September 1994 and late August/early September 1995). text/html 20061113 http://gis.glin.net/ogc/services.php#gl_107th_congressional_districts Congressional districts (CDs) are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states, based on census population counts, each state is responsible for establishing CDs for the purpose of electing representatives. Each CD is to be as equal in population to all other CDs in the state as practicable. text/html 20061002 http://gis.glin.net/ogc/services.php#gl_108th_congressional_districts Congressional districts (CDs) are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states, based on census population counts, each state is responsible for establishing CDs for the purpose of electing representatives. Each CD is to be as equal in population to all other CDs in the state as practicable. text/html 20061002 http://gis.glin.net/ogc/services.php#gl_109th_congressional_districts Congressional districts (CDs) are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states, based on census population counts, each state is responsible for establishing CDs for the purpose of electing representatives. Each CD is to be as equal in population to all other CDs in the state as practicable.