From the web page of Thanh NGO-DUC

TRIP2: Elevation Map

Prepare the maps required by TRIP2

Example of the 1.0 degree global elevation map provided by TRIP 2

[thanh@shui 1.0_deg_global]$ ncdump -h 1.0_deg_elevtn.nc
netcdf 1.0_deg_elevtn {
dimensions:
lon = 360 ;
lat = 180 ;
time = UNLIMITED ; // (1 currently)
variables:
float lon(lon) ;
lon:units = "degrees_east" ;
lon:valid_min = -180.f ;
lon:valid_max = 180.f ;
lon:long_name = "Longitude" ;
float lat(lat) ;
lat:units = "degrees_north" ;
lat:valid_min = -90.f ;
lat:valid_max = 90.f ;
lat:long_name = "Latitude" ;
float time(time) ;
time:title = "Time" ;
time:long_name = "Time axis" ;
float elevtn(time, lat, lon) ;
elevtn:missing_value = -9999f ;
}

Note: In the elevation map, the longitude values were saved from "small to big". The latitude values were saved from "big to small". The missing value is -9999f.

Đã gọi từ http://hydro.iis.u-tokyo.ac.jp/~thanh/wiki/index.php?n=TRIP2.ElevationMap
Trang này được sửa đổi cuối cùng vào February 20, 2008, at 11:27 AM