Hi Tim:
1) have a look at the form at:
http://motherlode.ucar.edu:8080/thredds/ncServer/model/NCEP/NAM/CONUS_12km/NAM_CONUS_12km_20060714_1200.grib2?showForm
that dataset goes from
Lat: 57 to 12 degees north
Lon: -153 to -49 degrees east
not sure what "140.2 to 160.0" means here, dunno if youre thinking of a global grid? If
you are thinking of "over midwest", which would be in the range of -100 to -80
probably entering in "bad" longitudes makes the TDS do wierd things, without
warning. sorry theres not better diagnostics.
2) when the data is on a projection, the lat/lon bounding box is approximate;
we dont reproject, just return some reasonable rectangle.
twhit@xxxxxxxxxxxxxxx wrote:
John,
From the specifications here,
http://motherlode.ucar.edu:8080/thredds/docs/NetcdfServer.html
I'm trying to create a URL for retrieving data. The URL is below:
http://motherlode.ucar.edu:8080/thredds/ncServer/model/NCEP/NAM/CONUS_12km/NAM_CONUS_12km_20060714_1200.grib2?grid=Total_precipitation&north=35&south=30&west=140.2&east=160.0&time_start=0.0&time_end=12.0&addLatLon
The server returns the grib2 file attached, which I have also coverted to CDL
using ncdump.exe.
Based on looking at the CDL, it appears that the lat/lon in the CDL aren't
matching my inputs in the URL.
CDL lat/lon range: 54.05 - 54.57 / -152.48 - -152.89
URL lat/lon range: 30 - 35 / 140.2 - 160.0
Can you explain to me what is incorrect in my URL, or how I am misinterpreting
the CDL. I apologize if I am missing something simple or obvious. This is the
first time I have tried accessing this data in this fashion.
Thanks,
Tim Whiteaker
