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Where do I store data in UTM zone 55?
I have data that spreads across two UTM Zones GDA/MGA94 UTM Zone 55 and 56. I have layers such as a cadastre, roads, pipelines etc where I want to store measurements like lengths and areas in metres or some kind of metric notation, not degrees!
Which is not tied to the UTM zones?
Based on the information provided I would be looking at using a different projection which is not tied to the UTM Zones, like GeoScience Australia’s Lambert Conformal Conic Projection. This will have some distortion effects but they will be minimal. The distance unit is metres.
What are the 3tm, 10tm and 6TM projections?
There are a series of projections suited to this exact situation, 10TM, 6TM and 3TM. They are essentially Transverse Mercator slices with custom central meridians, spanning 10 degrees, 6 degrees, or 3 degrees of longitude, respectively. I first encountered them working on data within the City of Calgary, which straddles two UTM zones.
How to calculate area of a polygon in ArcGIS?
There are alternative methods for creating an Area field for polygon features including: Calculate Field and the Geometry Calculator. The Output Feature Class is a copy of the Input Feature Class with the additional (or updated) F_AREA field containing polygon areas.
Is there a calculate area tool in ArcGIS Pro?
Because there are easier and more efficient ways to get the area of features, the Calculate Areas tool will no longer be included with ArcGIS Pro. Use the Calculate Field tool or the Geometry Calculator instead of the Calculate Areas tool in your workflows and custom script or models tools.
Why do I need to change the UTM zone in ArcMap?
There might be a legitimate need to change the UTM Zone of a Data Frame in ArcMap. The wrong UTM Zone may have been assigned to the ArcMap project. There might be data without a projection file that is not appearing in the correct place. Or the coordinates seen in the lower right-hand corner of the ArcMap window might be incorrect.
How is the Transverse Mercator used in the UTM?
The Transverse Mercator projection illustrated above (Figure 2.22.2) minimizes distortion within UTM zone 30. Fifty-nine variations on this projection are used to minimize distortion in the other 59 UTM zones. In every case, distortion is no greater than 1 part in 1,000.