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You have an ESRI projection (ESRI:102719) however PostGIS (and everyone else but ESRI) are expecting EPSG:2264 (or possibly EPSG:3359 or EPSG:3632). You can use the ESRI one (just be aware that this will not interoperate well with others) - just run the following: INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9102719, ...


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WGS 1984 has had several "releases". I'm not sure whether or not to call them re-adjustments. WGS 1984 is loosely tied to the International Terrestrial Reference Frame (ITRF), maintained by IERS. The first transformation, WGS_1984_(ITRF00)_To_NAD_1983, assumes that WGS 1984 is the one tied to ITRF00 and the NAD 1983 realization is CORS96 or similar. That ...


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NAD1983 is a geographic coordinate system. There are a few different ways you could go about aligning these data, but I'll give an example that I think is simple and clean. (1) Add both of your CSV tables to ArcMap and plot the points. Make sure you plot them using the correct geographic coordinate system - File1(NAD1927) and File2(NAD1983). Right click the ...


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Why can't you use the Field Calculator to recalculate the Lat/Long once you've done the data transformation? If you need to preserve the original values (for some reason), then add two new columns and calc those with the NAD83 values.


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No, you don't need to, but you will need the NTv2 transformation files for New Brunswick. They're available for download from GeoNB. The file you're interested in is NB7783v2.GSB. Once extracted from the downloaded zip file, place it in your ArcGIS home, pedata\ntv2\canada. EDIT: Okay, so most of the information above is incorrect because I assumed New ...


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My guess is that the fruit data 1) has no defined coordinate reference system, 2) it's been assigned the same as the zip code data, or 3) assigned the data frame's coordinate reference system (CRS). The zip code data and the data frame may be using the same coordinate reference system. If so, it's a projected one like a UTM or State Plane zone. The fruit ...


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First, I'd like to confirm that you do have the Canadian NTv2 grid file installed (ArcGIS install, pedata\ntv2\canada\NTv2_0.gsb). To check if the data is NAD 1927, unproject it to NAD 1983. Redefine it as NAD 1927, rather than reproject it. Perhaps that's what you've done, but I'm not sure. During this process, you can also check the values in the ...


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Open your file in QGIS, right click the layer and Save As... In the section labeled CRS click Browse. In the new window you can search for your desired CRS. Save your file and it will now assign the projection to your shapefile. Search didn't work, at least for me, in some earlier version of QGIS, but NAD83/Illinois East is under Projected Coord System > ...


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It sounds like you are trying to project from NAD83 UTM Zone 12 to WGS84 UTM Zone 13N (presumably you are working on/near a zone boundary). At least in 10.1, I found WGS 1984 UTM Zone 13N under Projected Coordinate Systems>UTM>WGS84>Northern Hemisphere and I would expect it to be found in the same location at 9.3. So I think you should be able to do the ...



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