-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 08/02/13 07:23, Leo Kris Palao wrote: > Good Day QGIS Users! > > I am working on a GIS project where my area of interest (drainage basin and > river network) > cover two UTM Zones. In this case, I cannot use UTM to compute for area and > distance, and to > perform other analysis in which spatial data needs to be projected. What > projection can I use? > Is Equal Area Cylindrical NSIDC EASE - Grid Global (EPSG: 3410) okay to use > if working on a > very large spatial dataset? Is this widely used by GIS users? Thank you.
I was in a similar situation (study site spread over two UTM zones), and I got the following advice: "Albers Equal Area, and specify the meridian as the middle of your study area and the two parallels to sit at the top third (or top quarter) and the other standard parallel to set at the bottom third (or bottom quarter) of your study area" Hope this helps, Rainer > > -Leo Kris > > > _______________________________________________ Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJRFNCsAAoJENvXNx4PUvmCNhoIAIwLNa8TC4toXZS0kXx7PB/l zGUxJsuhFA8VuI5InhPFR5dt2kPMoXyWn1H2zmYRajZtIdT44477l1orA4LH2FbB b4nJvlqv2EBJtdpNWNyGgjMksTODphtdC8pLC8zL2rs0JmW7ENkNNEZZr8heKShA W5sI2HX8xg+7nqC2Y0UIdJV62ro4rq9pjmoaoVer1LXkaqB1kt6JZEgFCPfsIB5U Q7+QcOhH0L+XBppL+yT/A0gA1Sq1/9weS1hj1j6M2v/5eOQOUpgn5ccTxfbMTNw4 dpA8TYPl4AVOE4d1oXwOrjEekdmeT9DLRh3qlU8zPaYcgQXt1V926ZyWsnb3P6g= =cBhZ -----END PGP SIGNATURE----- _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
