I'm new to netCDF development and currently I have a
large number of netcdf files
that contain multiple dimensions, variables , and data
for a period of time. Here is a cdl that I generated
with ncdump of one of the files
netcdf test {
dimensions:
lat = 141 ;
lon = 360 ;
time = UNLIMITED ; // (31 currently)
variables:
float lat(lat) ;
lat:long_name = "Latitude" ;
lat:units = "degrees_north" ;
float lon(lon) ;
lon:long_name = "Longitude" ;
lon:units = "degrees_east" ;
float time(time) ;
time:long_name = "Time" ;
time:units = "hours since 1997-01-01" ;
float age_rcnt_obs(time, lat, lon) ;
age_rcnt_obs:_FillValue = 999.f ;
age_rcnt_obs:long_name = "Age of Recent Observation"
;
age_rcnt_obs:missing_value = 999.f ;
age_rcnt_obs:units = "Hours" ;
age_rcnt_obs:valid_max = 255.f ;
age_rcnt_obs:valid_min = 0.f ;
float anal_temp(time, lat, lon) ;
anal_temp:_FillValue = 9999.f ;
anal_temp:long_name = "Analysis Temperature" ;
anal_temp:missing_value = 999.9f ;
anal_temp:scale_factor = 0.1f ;
anal_temp:units = "Deg. C" ;
anal_temp:valid_max = 70.f ;
anal_temp:valid_min = -10.f ;
float avgrad(time, lat, lon) ;
etc.....;
// global attributes:
:title = "SST 100 KM FIELD" ;
data:
lat = -70, -69, -68, -67, -66, -65, -64, -63, -62,
-61, -60, -59, -58, -57,
-56, -55, -54, -53, -52, -51, -50, -49, -48, -47,
-46, -45, -44, -43,
etc..............;
lon = -180, -179, -178, -177, -176, -175, -174, -173,
-172, -171, -170,
-169, -168, -167, -166, -165, -164, -163, -162,
-161, -160, -159, -158,
-157, -156, -155, -154, -153, -152, -151, -150,
-149, -148, -147, -146,
-145, -144, -143, -142, -141, -140, -139, -138,
-137, -136, -135, -134,
etc..............;
time = 60600, 60624, 60648, 60672, 60696, 60720,
60744, 60768, 60792, 60816,
60840, 60864, 60888, 60912, 60936, 60960, 60984,
61008, 61032, 61056,
61080, 61104, 61128, 61152, 61176, 61200, 61224,
61248, 61272, 61296,
61320 ;
age_rcnt_obs
.........etc
As you can see with the time there is data for 31
days. What I would like to do is create 31 separate
files using the NetCDF C++ Interface. Each file would
include all dimensions variables attributes and only
the data for that single day. I can't use a utility I
need to create this myself since dates and other
information needs to be obtained from a database. My
question is can anyone send a code example of how I
might do this? Thank you for your time and
consideration.
Selina
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