We have just updated the layers showing “Benchmarks (NOAA)” and “Benchmarks CORS (NOAA)” to IndianaMap, which can be found in the “Reference>Benchmarks” folder, and the “Managed Lands IDNR” which can be found in the “Environment>Managed Lands” folder. If you are a frequent user of these data, please use the link below to access the Layer Gallery for free downloadable data and metadata, access the REST service URL, preview the data, or add it to your next custom map.
Benchmarks (NOAA), 20151203 – Shows geodetic control stations maintained by the National Oceanic and Atmospheric Administration (NOAA), National Geodetic Survey. Each geodetic control station has either a precise latitude and longitude used for horizontal control or a precise height used for vertical control (units are meters above the geoid), or both. Data are current as of December 3, 2015.
CORS Benchmarks (NOAA), 20151203 – Shows Continuously Operating Reference Station (CORS) locations in Indiana maintained by the National Oceanic and Atmospheric Administration (NOAA), National Geodetic Survey. Data are current as of December 3, 2015. The National Geodetic Survey (NGS), an office of NOAA’s National Ocean Service, manages a network of Continuously Operating Reference Stations (CORS) that provide Global Navigation Satellite System (GNSS) data consisting of carrier phase and code range measurements in support of three dimensional positioning, meteorology, space weather, and geophysical applications throughout the United States, its territories, and a few foreign countries.
Surveyors, GIS users, engineers, scientists, and the public at large that collect GPS data can use CORS data to improve the precision of their positions. CORS enhanced post-processed coordinates approach a few centimeters relative to the National Spatial Reference System, both horizontally and vertically. The CORS network is a multi-purpose cooperative endeavor involving government, academic, and private organizations. The sites are independently owned and operated. Each agency shares their data with NGS, and NGS in turn analyzes and distributes the data free of charge. As of August 2015, the CORS network almost 2,000 stations, contributed by over 200 different organizations, and the network continues to expand.
Managed Lands, 20151110 (1:24,000) – Shows natural and recreation areas which are owned or managed by the Indiana Department of Natural Resources. In addition, some lands are included that are owned by federal agencies, local agencies, non-profit organizations, and conservation easements. For additional information regarding these lands, persons should contact the IDNR Indiana Natural Heritage Data Center (317-232-4052). Attributes include property names, owners, managing entities, acreages, access, and other information. Provided by personnel of the Indiana Natural Heritage Data Center, Indiana Department of Natural Resources, on November 10, 2015.
We have just added a new layer showing “Coal Combustion Waste – Inspected Impoundments” to IndianaMap, all found in the “Environment>Waste” folder of the map, with data supplied by Indiana Department of Natural Resources (IDNR) . If you are a frequent user of these data, please use the link below to access the Layer Gallery for free downloadable data and metadata, access the REST service URL, preview the data, or add it to your next custom map.
Coal Combustion Waste – Inspected Impoundments, IDEM 20151113 – Shows coal combustion waste (CCW) impoundments in Indiana that have been inspected by the U.S. Environmental Protection Agency (US EPA). Attributes include observations by IDEM staff and information found in US EPA contracted reports about the structural integrity and hazard potential some of the impoundment dams. Data were provided by personnel of Indiana Department of Environmental Management, Office of Land Quality (IDEM, OLQ) as of November 13, 2015. CCW impoundments were digitized by IDEM staff from aerial photo-interpretation. This was done in response to the CCW impoundment failure at the TVA/Kingston coal burning electric generating facility during December of 2008, and IDEM’s recognition of the need to know the precise locations of these waste features, and what impacts similar failures may have on the Indiana landscape. Also in response to this failure, US EPA initiated a nationwide program assessing the structural integrity and safety of CCW impoundments. US EPA contracted for inspections of these facilities, and information from the reports of Indiana facilities are included in the IDEM developed attributes of these features. The attributes, information about the features in tabular format, were compiled from information taken from the published reports of impoundment inspections done by EPA contracted firms, and notes from IDEM field inspections, as well as observations made by IDEM GIS staff as the features were digitally mapped. The qualitative and quantitative attributes provide information of impoundment size, capacity, dike/dam hazard potential, types of waste placed in the impoundment, owner, facility name, impoundment use, and field observations by IDEM inspectors and USEPA contracted specialists.
The USEPA contracted nationwide reports are found: http://www3.epa.gov/epawaste/nonhaz/industrial/special/fossil/surveys2/index.htm#_ga=1.5580723.182041078.1443707387
From the EPA reports: “A CCW management unit is defined as a surface impoundment or similar diked or bermed management unit or management units designated as landfills that receive liquid-borne material and are used for the storage or disposal of residuals or by-products from the combustion of coal, including, but not limited to, fly ash, bottom ash, boiler slag, or flu gas emission control residuals. Management units also include inactive impoundments that have not been formally closed in compliance with applicable federal or state closure/reclamation regulations.”