[ncl-talk] problem with GPCP data grid
victor
mashibo321 at 126.com
Sun Jan 27 06:38:08 MST 2019
I need some help with GPCP monthly data grid.
The grid of data seems unusual. When I do ncdump -h, it output like below. I don't know how to deal with something like "latitude(nlat)"?
Should I need to regriding? What should I do if I want to reshape the data to an usual one?
...
variables:
float latitude(nlat) ;
latitude:long_name = "Latitude" ;
latitude:standard_name = "latitude" ;
latitude:units = "degrees_north" ;
latitude:valid_range = -90.f, 90.f ;
latitude:missing_value = -9999.f ;
latitude:bounds = "lat_bounds" ;
float longitude(nlon) ;
longitude:long_name = "Longitude" ;
longitude:standard_name = "longitude" ;
longitude:units = "degrees_east" ;
longitude:valid_range = 0.f, 360.f ;
longitude:missing_value = -9999.f ;
longitude:bounds = "lon_bounds" ;
float time(time) ;
time:long_name = "time" ;
time:standard_name = "time" ;
time:units = "days since 1970-01-01 00:00:00 0:00" ;
time:calendar = "julian" ;
time:axis = "T" ;
float lat_bounds(nlat, nv) ;
lat_bounds:units = "degrees_north" ;
lat_bounds:comment = "latitude values at the north and south bounds of each pixel." ;
float lon_bounds(nlon, nv) ;
lon_bounds:units = "degrees_east" ;
lon_bounds:comment = "longitude values at the west and east bounds of each pixel." ;
float time_bounds(nv, time) ;
time_bounds:units = "days since 1970-01-01 00:00:00 0:00" ;
time_bounds:comment = "time bounds for each time value" ;
float precip(nlat, nlon) ;
precip:long_name = "NOAA Climate Data Record (CDR) of Monthly GPCP Satellite-Gauge Combined Precipitation" ;
precip:standard_name = "precipitation amount" ;
precip:units = "millimeters/day" ;
precip:coordinates = "longitude latitude time" ;
precip:valid_range = 0.f, 100.f ;
precip:cell_methods = "precip: mean" ;
precip:missing_value = -9999.f ;
float precip_error(nlat, nlon) ;
precip_error:long_name = "NOAA CDR of GPCP Satellite-Gauge Combined Precipitation Error" ;
precip_error:units = "millimeters/day" ;
precip_error:coordinates = "longitude latitude" ;
precip_error:valid_range = 0.f, 100.f ;
precip_error:missing_value = -9999.f ;
...
--
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Shibo Ma(马世波)
Graduate Student
Department of Atmospheric and Oceanic Sciences
School of Physics, Peking University
No. 209 Chengfu Road, Beijing, China
Email: mashibo321 at 126.com
Tel : +86 18810507714
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