!
! (C) Copyright 2005- ECMWF.
!
! This software is licensed under the terms of the Apache Licence Version 2.0
!which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
!
! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
!
!
! FORTRAN 90 implementation: bufr_subset
!
! Description: how to read data values from a given subset of a BUFR message.
!
!
program bufr_subset
use eccodes
implicit none
integer :: ifile
integer :: iret
integer :: ibufr
integer :: i, count=0
integer(kind=4) :: numberOfSubsets
integer(kind=4) :: blockNumber,stationNumber
character(100) :: key
!real(kind=8) :: t2m
call codes_open_file(ifile,'../../data/bufr/synop_multi_subset.bufr','r')
! The first bufr message is loaded from file,
! ibufr is the bufr id to be used in subsequent calls
call codes_bufr_new_from_file(ifile,ibufr,iret)
do while (iret/=CODES_END_OF_FILE)
! Get and print some keys form the BUFR header
write(*,*) 'message: ',count
! We need to instruct ecCodes to expand all the descriptors
! i.e. unpack the data values
call codes_set(ibufr,'unpack',1);
! Find out the number of subsets
call codes_get(ibufr,'numberOfSubsets',numberOfSubsets)
write(*,*) ' numberOfSubsets:',numberOfSubsets
! Loop over the subsets
do i=1,numberOfSubsets
100 format('/subsetNumber=',I5.5,'/blockNumber')
write(key,100) I
write(*,*) key
write(*,*) ' subsetNumber:',i
! read and print some data values
call codes_get(ibufr,key,blockNumber);
write(*,*) ' blockNumber:',blockNumber
write(key,*) '/subsetNumber=',I,'/stationNumber'
call codes_get(ibufr,'stationNumber',stationNumber);
write(*,*) ' stationNumber:',stationNumber
end do
! Release the bufr message
call codes_release(ibufr)
! Load the next bufr message
call codes_bufr_new_from_file(ifile,ibufr,iret)
count=count+1
end do
! Close file
call codes_close_file(ifile)
end program bufr_subset
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# (C) Copyright 2005- ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
#
# In applying this licence, ECMWF does not waive the privileges and immunities
# granted to it by virtue of its status as an intergovernmental organisation
# nor does it submit to any jurisdiction.
#
# Python implementation: bufr_subset
#
# Description: how to read data values from a given subset of a BUFR message.
#
#
import sys
import traceback
from eccodes import *
INPUT = '../../data/bufr/synop_multi_subset.bufr'
VERBOSE = 1 # verbose error reporting
def example():
# open BUFR file
f = open(INPUT, 'rb')
cnt = 0
# loop for the messages in the file
while 1:
# get handle for message
bufr = codes_bufr_new_from_file(f)
if bufr is None:
break
print("message: %s" % cnt)
# we need to instruct ecCodes to expand all the descriptors
# i.e. unpack the data values
codes_set(bufr, 'unpack', 1)
# find out the number of subsets
key = 'numberOfSubsets'
numberOfSubsets = codes_get(bufr, 'numberOfSubsets')
print(' %s: %d' % (key, numberOfSubsets))
# loop over the subsets
for i in range(1, numberOfSubsets + 1):
# read and print some data values
key = '/subsetNumber=%d/blockNumber' % i
print(key)
val = codes_get_long(bufr, key)
print(' %s= %d' % (key, val))
key = '/subsetNumber=%d/stationNumber' % i
val = codes_get_long(bufr, key)
print(' %s: %d' % (key, val))
cnt += 1
# delete handle
codes_release(bufr)
# close the file
f.close()
def main():
try:
example()
except CodesInternalError as err:
if VERBOSE:
traceback.print_exc(file=sys.stderr)
else:
sys.stderr.write(err.msg + '\n')
return 1
if __name__ == "__main__":
sys.exit(main())
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/*
* (C) Copyright 2005- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
*/
/*
* C Implementation: bufr_subset
*
* Description: how to read data values from a given subset of a BUFR message.
*
*/
#include "eccodes.h"
int main(int argc,char* argv[])
{
char key[200]={0,};
FILE* in = NULL;
/* message handle. Required in all the eccodes calls acting on a message.*/
codes_handle* h=NULL;
long numberOfSubsets=0;
long longVal;
double doubleVal;
size_t stringLen;
char stringVal[100]={0,};
int i,err=0;
int cnt=0;
const char* infile = "../../data/bufr/synop_multi_subset.bufr";
in=fopen(infile,"rb");
if (!in) {
printf("ERROR: unable to open file %s\n", infile);
return 1;
}
/* loop over the messages in the bufr file */
while ((h = codes_handle_new_from_file(NULL,in,PRODUCT_BUFR,&err)) != NULL || err != CODES_SUCCESS)
{
if (h == NULL) {
printf("Error: unable to create handle for message %d\n",cnt);
cnt++;
continue;
}
printf("message: %d\n",cnt);
/* we need to instruct ecCodes to expand all the descriptors i.e. unpack the data values */
CODES_CHECK(codes_set_long(h,"unpack",1),0);
/* find out the number of subsets */
CODES_CHECK(codes_get_long(h,"numberOfSubsets",&numberOfSubsets),0);
printf(" numberOfSubsets: %ld\n",numberOfSubsets);
/* loop over the subsets */
for(i=1; i <= numberOfSubsets; i++)
{
sprintf(key,"/subsetNumber=%d/blockNumber",i);
printf(" subsetNumber=%d",i);
/* read and print some data values */
CODES_CHECK(codes_get_long(h,key,&longVal),0);
printf(" blockNumber=%ld",longVal);
sprintf(key,"/subsetNumber=%d/stationNumber",i);
CODES_CHECK(codes_get_long(h,key,&longVal),0);
printf(" stationNumber=%ld",longVal);
sprintf(key,"/subsetNumber=%d/stationOrSiteName",i);
stringLen=100;
CODES_CHECK(codes_get_string(h,key,stringVal,&stringLen),0);
printf(" stationOrSiteName=\"%s\"",stringVal);
sprintf(key,"/subsetNumber=%d/airTemperature",i);
CODES_CHECK(codes_get_double(h,key,&doubleVal),0);
printf(" airTemperature=%g\n",doubleVal);
}
/* delete handle */
codes_handle_delete(h);
cnt++;
}
fclose(in);
return 0;
}
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