Geographical coordinate System (Global Coordinate Systems) (i.e., Latitude and Longitude values, in degrees)įor sufficient accuracy to allow global exploration, navigation and mapping earth is considered as a spherical for Mathematical Modeling. But when maps represent a bigger area, Curvature of Earth has to be considered and hence there is a need of the geographical coordinate system. When the survey is done for less then 10 Kms, variation due to curvature of the earth will be insignificant and flat earth models can be used. So the Cartesian coordinate system cannot be used to represent Earth Surface as Earth has a Spherical Surface. Each reference line is called a coordinate axis or just axis of the system, and the point where they meet is its origin, usually at the ordered pair (0,0)Įarth is not a Flat Surface. Universal Transverse Mercator coordinate systemĪ Cartesian coordinate system specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances from the point to two fixed perpendicular directed lines, measured in the same unit of length.This white paper explains which are the factors to be understood for Latitude and Longitude Conversion. Output Excel will have converted Data as shown below formatĬonverting Latitude Longitude into Map Coordinate is not a single step conversion as in most of the conversion from one unit to another unit by applying simple formula. Then converted Data will be downloaded in Download folder as UTM.xlsxħ. Click on Browse button to select LatLong CSV fileĦ. Once login to website, click on LatLong to UTM Conversion menu underģ. Click on Login button enter your credentials to loginĢ. LatLong data in Decimal degree and save it in CSV file format as shownġ. Prerequisite: To convert LatLong to UTM coordinate system, you need to have Record #'s without UTM info are ditto's of the previous record with UTM information.Convert Latitude and Longitude to UTM coordinates is a free SAASĪpplication. The following are records in the Specify database. 3200/5380) to decimal degrees use:Īnd Google or BING maps to put each point on a map to verify correctness. To convert from Moore's UTM notation (e.g. See the link to TX Natural Resources Information System above. So getting the right quad is critical - you can't just use a universal UTM converter. 2195 on the Yellow Hill Quad is actaully UTM coordinate 621,950. Note that some of these quads have UTM grids on them which can be confusing. YH = Yellow Hill quadrangle AF = Agua Fria quadrangle We used the process below to convert them.įound the quads - note that this can be done using the search in the Texas Natural Resources Information System. We ran across a set of specimens that used UTM to describe their location. It expects the data in particular column order but would be trivially modified to handle a different arrangement of columns. Using it, I wrote a simple program to read in a table with UTM coordinates, zones, and datums and expand it with latitude and longitude. I found a Python package that supports conversions between UTM and lat/long. Louis Zachos provided us with a table of locality data (as a csv file) for his sites in UTM format, some NAD27 and some NAD83. Converting from Universal Transverse Mercator (UTM) to decimal degrees.
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