Choosing standard parallels / central meridian The 2019 Stack Overflow Developer Survey Results Are In Unicorn Meta Zoo #1: Why another podcast? Announcing the arrival of Valued Associate #679: Cesar ManaraLambert projection with one or two standard parallels and proj4Which CRS fits “Lambert Conformal Conic Projection, Standard Parallels 46.40 and 49.20”?Miller cylindrical projection - central meridianUSA Contiguous Albers Equal Area Conic to milesChoosing Equal Area Projection and Standard Parallels for Indonesia?Wrong area using Albers Equal Area Projection in GRASS for Java, IndonesiaLambert Conformal Conic (One Standard Parallel) - Choosing 'Latitude of Origin/Standard Parallel'Central meridian in Lambert conformal conic distorting distance?Georeferencing Old German Map in ArcMap that uses Ferro Meridian and very uncommon projectionCustomized Albers Equal Area Conic projections are cosmetic only or do they affect area calculations too?

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Choosing standard parallels / central meridian



The 2019 Stack Overflow Developer Survey Results Are In
Unicorn Meta Zoo #1: Why another podcast?
Announcing the arrival of Valued Associate #679: Cesar ManaraLambert projection with one or two standard parallels and proj4Which CRS fits “Lambert Conformal Conic Projection, Standard Parallels 46.40 and 49.20”?Miller cylindrical projection - central meridianUSA Contiguous Albers Equal Area Conic to milesChoosing Equal Area Projection and Standard Parallels for Indonesia?Wrong area using Albers Equal Area Projection in GRASS for Java, IndonesiaLambert Conformal Conic (One Standard Parallel) - Choosing 'Latitude of Origin/Standard Parallel'Central meridian in Lambert conformal conic distorting distance?Georeferencing Old German Map in ArcMap that uses Ferro Meridian and very uncommon projectionCustomized Albers Equal Area Conic projections are cosmetic only or do they affect area calculations too?



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0















I have to choose a equal area projection for the country of Columbia and modify the central meridian and two standard parallels. I am using the South America Albers Equal Area conic projection.



I know how to go in a modify the parallels but how do I chose which standard parallels and central meridian to use?










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    0















    I have to choose a equal area projection for the country of Columbia and modify the central meridian and two standard parallels. I am using the South America Albers Equal Area conic projection.



    I know how to go in a modify the parallels but how do I chose which standard parallels and central meridian to use?










    share|improve this question









    New contributor




    gis.student.roni is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      0












      0








      0








      I have to choose a equal area projection for the country of Columbia and modify the central meridian and two standard parallels. I am using the South America Albers Equal Area conic projection.



      I know how to go in a modify the parallels but how do I chose which standard parallels and central meridian to use?










      share|improve this question









      New contributor




      gis.student.roni is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I have to choose a equal area projection for the country of Columbia and modify the central meridian and two standard parallels. I am using the South America Albers Equal Area conic projection.



      I know how to go in a modify the parallels but how do I chose which standard parallels and central meridian to use?







      coordinate-system parameters






      share|improve this question









      New contributor




      gis.student.roni is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      gis.student.roni is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share|improve this question




      share|improve this question








      edited Apr 7 at 2:22









      Vince

      14.8k32850




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      asked Apr 7 at 1:07









      gis.student.ronigis.student.roni

      11




      11




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          1 Answer
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          If you are using ArcMap, have a look at the tool Calculate Central Meridian And Parallels.




          Calculates the central meridian and optional standard parallels based on the center point of a feature's extent; stores this coordinate system as a spatial reference string in a specified text field; and repeats this for a set, or subset, of features. This field can be used with Data Driven Pages to update the data frame coordinate system for each page.




          You will find the central meridian and parallels in the generated spatial reference string. The String will look something like this:




          PROJCS["South_America_Albers_Equal_Area_Conic",GEOGCS["GCS_South_American_1969",DATUM["D_South_American_1969",SPHEROID["GRS_1967_Truncated",6378160.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-73.0915470244631],PARAMETER["Standard_Parallel_1",-0.6208706728606269],PARAMETER["Standard_Parallel_2",8.286527734396916],PARAMETER["Latitude_Of_Origin",-32.0],UNIT["Meter",1.0]]




          Before you run this tool, you have to add a new text field to the feature class. Make sure that your feature class is in a Geodatabase since you need to set a high number (e.g. 1000) for the field's text length.






          share|improve this answer

























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            1 Answer
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            active

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            1 Answer
            1






            active

            oldest

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            active

            oldest

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            active

            oldest

            votes









            0














            If you are using ArcMap, have a look at the tool Calculate Central Meridian And Parallels.




            Calculates the central meridian and optional standard parallels based on the center point of a feature's extent; stores this coordinate system as a spatial reference string in a specified text field; and repeats this for a set, or subset, of features. This field can be used with Data Driven Pages to update the data frame coordinate system for each page.




            You will find the central meridian and parallels in the generated spatial reference string. The String will look something like this:




            PROJCS["South_America_Albers_Equal_Area_Conic",GEOGCS["GCS_South_American_1969",DATUM["D_South_American_1969",SPHEROID["GRS_1967_Truncated",6378160.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-73.0915470244631],PARAMETER["Standard_Parallel_1",-0.6208706728606269],PARAMETER["Standard_Parallel_2",8.286527734396916],PARAMETER["Latitude_Of_Origin",-32.0],UNIT["Meter",1.0]]




            Before you run this tool, you have to add a new text field to the feature class. Make sure that your feature class is in a Geodatabase since you need to set a high number (e.g. 1000) for the field's text length.






            share|improve this answer





























              0














              If you are using ArcMap, have a look at the tool Calculate Central Meridian And Parallels.




              Calculates the central meridian and optional standard parallels based on the center point of a feature's extent; stores this coordinate system as a spatial reference string in a specified text field; and repeats this for a set, or subset, of features. This field can be used with Data Driven Pages to update the data frame coordinate system for each page.




              You will find the central meridian and parallels in the generated spatial reference string. The String will look something like this:




              PROJCS["South_America_Albers_Equal_Area_Conic",GEOGCS["GCS_South_American_1969",DATUM["D_South_American_1969",SPHEROID["GRS_1967_Truncated",6378160.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-73.0915470244631],PARAMETER["Standard_Parallel_1",-0.6208706728606269],PARAMETER["Standard_Parallel_2",8.286527734396916],PARAMETER["Latitude_Of_Origin",-32.0],UNIT["Meter",1.0]]




              Before you run this tool, you have to add a new text field to the feature class. Make sure that your feature class is in a Geodatabase since you need to set a high number (e.g. 1000) for the field's text length.






              share|improve this answer



























                0












                0








                0







                If you are using ArcMap, have a look at the tool Calculate Central Meridian And Parallels.




                Calculates the central meridian and optional standard parallels based on the center point of a feature's extent; stores this coordinate system as a spatial reference string in a specified text field; and repeats this for a set, or subset, of features. This field can be used with Data Driven Pages to update the data frame coordinate system for each page.




                You will find the central meridian and parallels in the generated spatial reference string. The String will look something like this:




                PROJCS["South_America_Albers_Equal_Area_Conic",GEOGCS["GCS_South_American_1969",DATUM["D_South_American_1969",SPHEROID["GRS_1967_Truncated",6378160.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-73.0915470244631],PARAMETER["Standard_Parallel_1",-0.6208706728606269],PARAMETER["Standard_Parallel_2",8.286527734396916],PARAMETER["Latitude_Of_Origin",-32.0],UNIT["Meter",1.0]]




                Before you run this tool, you have to add a new text field to the feature class. Make sure that your feature class is in a Geodatabase since you need to set a high number (e.g. 1000) for the field's text length.






                share|improve this answer















                If you are using ArcMap, have a look at the tool Calculate Central Meridian And Parallels.




                Calculates the central meridian and optional standard parallels based on the center point of a feature's extent; stores this coordinate system as a spatial reference string in a specified text field; and repeats this for a set, or subset, of features. This field can be used with Data Driven Pages to update the data frame coordinate system for each page.




                You will find the central meridian and parallels in the generated spatial reference string. The String will look something like this:




                PROJCS["South_America_Albers_Equal_Area_Conic",GEOGCS["GCS_South_American_1969",DATUM["D_South_American_1969",SPHEROID["GRS_1967_Truncated",6378160.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-73.0915470244631],PARAMETER["Standard_Parallel_1",-0.6208706728606269],PARAMETER["Standard_Parallel_2",8.286527734396916],PARAMETER["Latitude_Of_Origin",-32.0],UNIT["Meter",1.0]]




                Before you run this tool, you have to add a new text field to the feature class. Make sure that your feature class is in a Geodatabase since you need to set a high number (e.g. 1000) for the field's text length.







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Apr 7 at 13:51

























                answered Apr 7 at 3:25









                Thomas ZuberbühlerThomas Zuberbühler

                26118




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