Converting geocodes in Latitude/Longitude NAD1983 to UTM_1983_Zone_18N?

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02-23-2015 04:59 PM
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New Contributor III

I wanna see the extent of difference in geocoding results performed by ArcGis and Texas A&M Geocoding Services. I have 500 geocoded addresses using Texas A&M Geocoding Services in Latitude/Longitude NAD1983. Now I want to convert it to (UTM_1983_Zone_18N). So that I can calculate the distance between two UTMs using excel. Second geocoded addresses in (UTM_1983_Zone_18N) was created with ArcGis 10.2.

 

Any idea how to make this conversion?

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MVP Esteemed Contributor

I am still confused as to what you have.  If the coordinate systems properties is correct (GCS NAD83 aka a decimal degree file with a NAD83 datum) you are ready to Project it as described.   If you examined its coordinate system and it is unknown, then you use the Define Projection tool in Arctoolbox to define it as the GCS NAD83 format, then you use the Project tool in the same toolbox.  If it is some other file format, then you will have to elaborate

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MVP Esteemed Contributor

why not use the Project tool in Data Managemen, Projections and Transformations, Project to get the data into a projected UTM file, or set the data frame to that projection to just see what they look like but not change the coordinates.  The first option is the best if you want to calculate distance.

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New Contributor III

​Thanks Dan.

Do I have to specify the column Texas A&M Geocoding Services in

Latitude/Longitude NAD1983​ in the attribute table? so that project tool

can convert this actual two columns to new UTM_1983_Zone_18N columns?

Btw, I am a beginner in ArcGIS.

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MVP Esteemed Contributor

You want a feature class or shapefile which has been produced via geocoding which you have specified as having a Geographic Coordinate system NAD83.  Once a file's coordinate system is known, then it can be projected.  To find out what it is check it in ArcCatalog or right click on the layer, and select properties then examine it there.

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New Contributor III

​Thanks

I can use Convert Coordinate Notation/Data Management, correct? I have

just figured out my current coordinate system properties.

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MVP Esteemed Contributor

I am still confused as to what you have.  If the coordinate systems properties is correct (GCS NAD83 aka a decimal degree file with a NAD83 datum) you are ready to Project it as described.   If you examined its coordinate system and it is unknown, then you use the Define Projection tool in Arctoolbox to define it as the GCS NAD83 format, then you use the Project tool in the same toolbox.  If it is some other file format, then you will have to elaborate

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New Contributor III

​​Thanks.

In my shapefile I have:

1. Latitude and Longitude created by Texas A&M Geocoding Services in

NAD1983

and

2. Point_X and Point_Y created using NY Geocoding service by ArcGis in

(UTM_1983_Zone_18N) .

I am trying to end up with x and y coordinates for two points both in a UTM

coordinate system. So that i can calculate the distance between two points

in Excel using formula like: meters= sqrt((x1-x2)2)+(y1-y2)2).

This is what i get for properties.

Data Type: Shapefile Feature Class

Shapefile: C:\Users\Magnai\Documents\ESRI\Geocoding_Result_26.shp

Geometry Type: Point

Coordinates have Z values: No

Coordinates have measures: No

Projected Coordinate System: NAD_1983_UTM_Zone_18N

Projection: Transverse_Mercator

False_Easting: 500000.00000000

False_Northing: 0.00000000

Central_Meridian: -75.00000000

Scale_Factor: 0.99960000

Latitude_Of_Origin: 0.00000000

Linear Unit: Meter

Geographic Coordinate System: GCS_North_American_1983

Datum: D_North_American_1983

Prime Meridian: Greenwich

Angular Unit: Degree​

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New Contributor III

​Thanks and just to update you on the way of conversion: Calculate geometry

function worked out perfect for this case. I also use your suggestion to

use "project".