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  2. Aerial photograph interpretation (geology) - Wikipedia

    en.wikipedia.org/wiki/Aerial_photograph...

    Boulder surveys determine and categorize the areas of boulders using aerial photograph interpretation. [1] After the survey the properties (dimension, amount, form) of boulders are combined with the geological map. This helps detect dangers from the falling of these large rock pieces, especially when conducting new projects close to the ...

  3. Survey marker - Wikipedia

    en.wikipedia.org/wiki/Survey_marker

    Survey markers, also called survey marks, survey monuments, or geodetic marks, are objects placed to mark key survey points on the Earth's surface. They are used in geodetic and land surveying . A benchmark is a type of survey marker that indicates elevation ( vertical position ).

  4. Google Earth - Wikipedia

    en.wikipedia.org/wiki/Google_Earth

    Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery.The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.

  5. Public Land Survey System - Wikipedia

    en.wikipedia.org/wiki/Public_Land_Survey_System

    The Public Land Survey System (PLSS) is the surveying method developed and used in the United States to plat, or divide, real property for sale and settling. Also known as the Rectangular Survey System, it was created by the Land Ordinance of 1785 to survey land ceded to the United States by the Treaty of Paris in 1783, following the end of the ...

  6. Aerial survey - Wikipedia

    en.wikipedia.org/wiki/Aerial_survey

    Aerial survey is a method of collecting geomatics or other imagery data using airplanes, helicopters, UAVs, balloons, or other aerial methods. Typical data collected includes aerial photography , Lidar , remote sensing (using various visible and invisible bands of the electromagnetic spectrum , such as infrared , gamma , or ultraviolet ) and ...

  7. Aerial photography - Wikipedia

    en.wikipedia.org/wiki/Aerial_photography

    From 1921, Aerofilms carried out vertical photography for survey and mapping purposes. During the 1930s, the company pioneered the science of photogrammetry (mapping from aerial photographs), with the Ordnance Survey amongst the company's clients. [ 17 ]

  8. Earth Point - Wikipedia

    en.wikipedia.org/wiki/Earth_Point

    County Assessor Data - maps any property in Ada or Canyon counties, whether or not it is for sale. Displays county assessor information including address, legal description, and assessed value. For Ada county, displays a picture of the property and the zoning. Township and Range - maps the United States Public Land Survey System onto Google Earth.

  9. List of map projections - Wikipedia

    en.wikipedia.org/wiki/List_of_map_projections

    Equal Earth: Pseudocylindrical Equal-area Bojan Šavrič, Tom Patterson, Bernhard Jenny Inspired by the Robinson projection, but retains the relative size of areas. 2011 Natural Earth: Pseudocylindrical Compromise Tom Patterson: Originally by interpolation of tabulated values. Now has a polynomial. 1973 Tobler hyperelliptical: Pseudocylindrical ...