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Blue Marble's first software product, the Geographic Calculator, [2] was developed in 1992 and released in 1993. The Geographic Calculator is a coordinate conversion library with a database of coordinate mathematical objects including projections, coordinate systems, datums, ellipsoids, linear and angular units. The tool is primarily used to ...
Global Mapper is a geographic information system (GIS) software package currently developed by Blue Marble Geographics [1] that runs on Microsoft Windows.The GIS software competes with ESRI, GeoMedia, Manifold System, and MapInfo GIS products.
Leverage the power of geographic and demographic data using MSG’s full suite of GIS services: reports and maps, geocoding, spatial analytics, geographic frame design and much more. From simple maps and reports to multifaceted data, spatial projects, and custom consulting, MSG’s GIS group has you covered. - Proprietary
Equirectangular projection of the world; the standard parallel is the equator (plate carrée projection). Equirectangular projection with Tissot's indicatrix of deformation and with the standard parallels lying on the equator True-colour satellite image of Earth in equirectangular projection Height map of planet Earth at 2km per pixel, including oceanic bathymetry information, normalized as 8 ...
All projections distort geographic features, distances, and directions in some way. The various map projections that have been developed provide different ways of balancing accuracy and the unavoidable distortion inherent in making world maps. Perhaps the best-known projection is the Mercator Projection, originally designed as a nautical chart.
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.
Duane Francis Marble (December 10, 1931 – February 22, 2022) was an American geographer known for his significant contributions to quantitative geography and geographic information science (GIScience). [1]
Image (Blue Marble) Name Publisher Year of publication 1 π ≈ 3.142 0° Lambert cylindrical equal-area: Johann Heinrich Lambert: 1772 3 / 4 = 0.75 3 π / 4 ≈ 2.356 30° Behrmann: Walter Behrmann: 1910 2 / π ≈ 0.6366 2 ≈ 37°04 ′ 17″ ≈ 37.0714° Smyth equal-surface