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I have a Lidar-derived DEM in a GCS_Arc1950 projection with the D_Arc1950 datum. Full details:… (Show more)
in Coordinate Reference Systems
Hi everyone, I have some WRF model output data in NetCDF format, and I would appreciate any guidance on projecting it from anyone with experience with data from this model. (WRF = Weather Research Forecasting)   These WRF runs use a Lambert Conformal Conic projection with a center of -121, standard parallels of 30 & 60 degrees North, and a… (Show more)
in Coordinate Reference Systems
Hello,   I am using ArcMap 10.4.1. I am performing a projection from WGS84 to NAD83, NC, USFeet.  The projection dialog is shown in the attached screenshot.  The data I am trying to project did not initially have coordinates but I was able to perform a "calculate geometry" to establish the latitude and longitude in the attribute table of the… (Show more)
in Coordinate Reference Systems
Start at a point.  You are given a list of bearings and distances.  Where do you end up. This comes up fairly often and the COGO tools allow you to create them from scratch.   Here is how you can do it using numpy and arcpy.   First a picture... given a location, you are instructed to move 100m in 10 degree increments between points.  You will… (Show more)
As a beginner in GIS, I am working on crime data (from Denver Police Department) and this dataset seems to have two different types of coordinate system. One is latitude and longitude in decimal degree, but I am not sure about the other. Column headers of these are Geo_X and Geo_Y (as is attached picture). I can still work for my project using DD system, but I just want to know what the other system (geo_x and geo_y) is about. Thanks!
    I am a beginner at ArcGIS and i do have a question related to coordinate system conversion. I just need to convert coordinates from WGS84 UTM 37S to ARC 1960? I know that is horizontal conversion.  My question is do i still have to do vertical datum transformation though i am concerned with equivalent horizontal coordinates?  Another thing is i… (Show more)
    in Coordinate Reference Systems
    The geotiff is exported from Pix4d in State Plane NAD83(2011) South Carolina International Feet (as defined by EPSG 6570).  It imports properly into Global Mapper, AutoCAD Civil 3D, Hypack, and Trimble Business Center.  We have found the issue but can not explain why it is happening and thats my question, why?   When you bring it into ArcGIS, its… (Show more)
    in Coordinate Reference Systems
    My ministry is currently performing some platform testing before we officially migrate from ArcGIS 10.3.1 to 10.5.1. Our group has been asked to participate and I noticed an issue when working with ESRI Grids in one of our native projections: NAD 1983 Ontario MNR Lambert. On 10.5.1, it can read the projection in ArcCatalog and even set the data… (Show more)
    in Coordinate Reference Systems
    I need define a projection system for the county map in Utah. I will first define counties.shp files by selecting a predefined geographic coordinate system and then the UTMutah projection. A custom coordinate system, UTMutah has the following parameter values. I need display XY data of Utah hospital, but even if I use the same projection UTMutah… (Show more)
    in Coordinate Reference Systems
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