Dear r-sig-geo and Barry, I am getting a strange value when doing a query using the function GNsrtm3 in the geonames package. Here is the code.
library(geonames) GNsrtm3(34.63874,-79.10111) # outside Lumberton North Carolina USA! srtm3 lng lat 1 -32768 -79.10111 34.63874 Warning message: In readLines(u) : incomplete final line found on 'http://ws.geonames.org/srtm3JSON?lat=34.63874&lng=-79.10111' I think the elevation value should be around 47 meters. The geonames website says 'ocean areas have been masked as "no data" and have been assigned a value of -32768'. http://www.geonames.org/export/web-services.html#srtm3 I tried adjusting the lat, long values to query some nearby cells but I still get -32768. Are these kinds of errors common in this dataset? Any suggestions? I am would actually prefer to get an average elevation for the county (Robeson) but am settling for the county centroid at this point. Thanks in advance, Michael -- Michael Denslow Graduate Student & Adjunct Instructor I.W. Carpenter Jr. Herbarium [BOON] Department of Biology Appalachian State University Boone, North Carolina U.S.A. -- AND -- Communications Manager Southeast Regional Network of Expertise and Collections sernec.org 36.214177, -81.681480 +/- 3103 meters _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo