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I am doing analysis for province wise Iran. I am using WGS1984 as my geographical coordinate system, and I do not know which is suitable Projection coordinate system for entire Iran.

I feel the UTM will not be suitable because the country shares several zones in UTM system.

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    What are your objectives (e.g. measuring distance or area, cartographic effect, etc)? – Aaron Dec 3 '13 at 14:59
  • I want to measure the area and length – Mahesh Dec 3 '13 at 15:41
  • Do you have the flexibility to create a custom Albers or Lambert equal-area projection, or are you limited to pre-defined SRIDs? – Vince Dec 3 '13 at 15:41
  • i am using ArcGIS, i have few knowledge about projection. what i have to do – Mahesh Dec 3 '13 at 15:45
  • Good question. Do you need to measure distances? If not WGS84 might be ok. – Jakub Sisak GeoGraphics Dec 3 '13 at 21:05
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GeoRepository is a great resource for discovering coordinate systems.

Here is a list of possible Projections, but I would suggest you don't take my word for it, I'm not very familiar with that area.

  • Have a great day!
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Not really an answer - just found some info - there is a Foreign Maps (Google eBook) available online that describes the various coordinate systems used in the middle east including Iran.

Here is a capture of the section that discusses the Iranian Coordinate Systems:

enter image description here

WGS1984 is probably suitable. If you need to measure distances, you could convert or use some tools or re-project the map as larger scales to either of the 4 UTM zones, although splitting it to the 2 main zones 39 and 40 would probably be OK.

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Please check out http://spatialreference.org/ref/?search=iran which provides some useful info about projections for different area/regions across the globe might be helpful for you.

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you should use labmbert or GCS WGS 1984 for entire Iran . These are the coordinate systems that use in Iran . NCC (www.ncc.org.ir) uses Lambert for Iran . If you work in a province then best option is UTM . If the province is located in two UTM Zone you should use GCS WGS 1984

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