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  2. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    This is a list of GIS data sources (including some geoportals) that provide information sets that can be used in geographic information systems (GIS) and spatial databases for purposes of geospatial analysis and cartographic mapping. This list categorizes the sources of interest.

  3. Geographic information system - Wikipedia

    en.wikipedia.org/wiki/Geographic_Information_System

    GIS data acquisition includes several methods for gathering spatial data into a GIS database, which can be grouped into three categories: primary data capture, the direct measurement phenomena in the field (e.g., remote sensing, the global positioning system); secondary data capture, the extraction of information from existing sources that are ...

  4. Great Lakes - Wikipedia

    en.wikipedia.org/wiki/Great_Lakes

    The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes spanning the Canada–United States border.The five lakes are Superior, Michigan, Huron, Erie, and Ontario (though hydrologically, Michigan and Huron are a single body of water, as they are joined by the Straits of Mackinac).

  5. Data collection system - Wikipedia

    en.wikipedia.org/wiki/Data_collection_system

    Data collection systems are an end-product of software development. Identifying and categorizing software or a software sub-system as having aspects of, or as actually being a "Data collection system" is very important. This categorization allows encyclopedic knowledge to be gathered and applied in the design and implementation of future systems.

  6. Demographic surveillance system - Wikipedia

    en.wikipedia.org/.../Demographic_surveillance_system

    In developing countries, there is commonly a lack of health and demographic information at the community or population level. [5] For instance, cause of death may be unknown for deaths occurring outside of health facilities. [1] One approach to collecting such data is the cross-sectional Demographic and Health Surveys (DHS). HDSS provide a ...

  7. Category : Great Lakes articles missing geocoordinate data

    en.wikipedia.org/wiki/Category:Great_Lakes...

    This category is hidden on its member pages—unless the corresponding user preference (Appearance → Show hidden categories) is set.; These categories are used to track, build and organize lists of pages needing "attention en masse" (for example, pages using deprecated syntax), or that may need to be edited at someone's earliest convenience.

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  9. Great Lakes megalopolis - Wikipedia

    en.wikipedia.org/wiki/Great_Lakes_megalopolis

    The Great Lakes megalopolis consists of a bi-national group of metropolitan areas in North America largely in the Great Lakes region. It extends from the Midwestern United States in the south and west to western Pennsylvania and Western New York in the east and northward through Southern Ontario into southwestern Quebec in Canada.