Can areas like death valley and the coachella valley around the Salton Sea in Southern California that are more than a foot below sea level be counted?
On Mon, Aug 12, 2013 at 6:32 PM, Christopher Tracey <[email protected]>wrote: > This is pretty much it. One additional important point is that the data > within the GIS needs to be setup in a map projection that conserves area. > If this is neglected, you could end up with area measures that are > extremely off (probably overestimating), especially in the higher latitudes > (in most commonly used map projections). Good luck! > > - Chris > > > > > On Aug 12, 2013, at 9:15 PM, Neahga Leonard <[email protected]> > wrote: > > > If you have access to ARCGIS software it would be pretty easy to do. > > Select your area, exclude oceans (-1 and under meters elevation - in my > > experience setting the measure at 0 winds up excluding a lot of land > area), > > and query for area in whatever units you have set up to measure in. > > > > The base-maps are available free from many sources (I have some sources > > collected here: > > > http://writingfornature.wordpress.com/links-to-interesting-blogs/gis-and-mapping-resources/ > ). > > > > If you don't have access to ARCGIS there are good free options, QGIS and > > GRASS being two good free examples. QGIS is a bit more user friendly. > > > > Good luck, > > > > On Monday, August 12, 2013, Abdel Halloway wrote: > > > >> Hi ECOLOG, > >> > >> I was hoping you could help me. I'm trying to determine the land area of > >> the New World and Old World separately within certain latitudinal > ranges. > >> Is there some way of determining this? Any information will be helpful. > >> Thank you. > >> > >> Sincerely, > >> Abdel Halloway > > > > > > -- > > Neahga Leonard > > > > *There is not just a whole world to explore, there is a whole universe to > > explore, perhaps more than one.* > > http://writingfornature.wordpress.com/ >
