1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
#
# (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_read_temp
#
# Description: how to read levels from TEMP BUFR messages.
#
#
#
# Please note that TEMP reports can be encoded in various ways in BUFR.
# Therefore the code below might not work directly for other types of TEMP
# messages than the one used in the example. It is advised to use bufr_dump to
# understand the structure of the messages.
#
import sys
import traceback
from eccodes import *
INPUT = "../../data/bufr/PraticaTemp.bufr"
VERBOSE = 1 # verbose error reporting
def example():
# open BUFR file
f = open(INPUT, "rb")
cnt = 0
# loop over 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 section
codes_set(bufr, "unpack", 1)
# get all the timePeriods
timePeriod = codes_get_array(bufr, "timePeriod")
pressure = codes_get_array(bufr, "pressure")
extendedVerticalSoundingSignificance = codes_get_array(
bufr, "extendedVerticalSoundingSignificance"
)
geopotentialHeight = codes_get_array(bufr, "nonCoordinateGeopotentialHeight")
latitudeDisplacement = codes_get_array(bufr, "latitudeDisplacement")
longitudeDisplacement = codes_get_array(bufr, "longitudeDisplacement")
airTemperature = codes_get_array(bufr, "airTemperature")
dewpointTemperature = codes_get_array(bufr, "dewpointTemperature")
windDirection = codes_get_array(bufr, "windDirection")
windSpeed = codes_get_array(bufr, "windSpeed")
blockNumber = codes_get(bufr, "blockNumber")
stationNumber = codes_get(bufr, "stationNumber")
print("station %d%d" % (blockNumber, stationNumber))
print(
"timePeriod pressure geopotentialHeight latitudeDisplacement longitudeDisplacement airTemperature windDirection windSpeed significance"
)
for i in range(0, len(windSpeed) - 1):
print(
timePeriod[i],
pressure[i],
geopotentialHeight[i],
latitudeDisplacement[i],
longitudeDisplacement[i],
airTemperature[i],
windDirection[i],
windSpeed[i],
extendedVerticalSoundingSignificance[i],
)
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())
|
