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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_read_tempf
#
#
# Description: read and print radiosonde data from TEMP BUFR messages.
# If available this version also lists the position information from the WMO list
# (now OSCAR/Surface) appended to the reports by ECMWF
#
# Author: Bruce Ingleby
#
# 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
import numpy as np
from eccodes import *
INPUT = "../../data/bufr/PraticaTemp.bufr"
VERBOSE = 1 # verbose error reporting
def example():
# open BUFR file
f = open(INPUT, "rb")
llstdonly = 1 # If 1 then list standard levels only, 0 list all levels
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
cnt += 1
# desc = codes_get_array(bufr, 'unexpandedDescriptors')
# if all(desc != 309056): # descent reports
# codes_release(bufr)
# continue # Skip other templates
# we need to instruct ecCodes to expand all the descriptors
# i.e. unpack the data section
codes_set(bufr, "unpack", 1)
# get header information from the message
try:
dropid = codes_get(bufr, "aircraftRegistrationNumberOrOtherIdentification")
except Exception:
dropid = "UNKNOWN "
try:
shipid = codes_get(bufr, "shipOrMobileLandStationIdentifier")
except Exception:
shipid = "UNKNOWN "
statid = "00000 "
try:
block = codes_get(bufr, "blockNumber")
stnum = codes_get(bufr, "stationNumber")
if (block > 0) and (block < 100): # or block != CODES_MISSING_LONG
statid = str.format("%.2i%.3i " % (block, stnum))
except Exception:
statid = "00000 "
if statid == "00000 ":
statid = shipid[0:8]
if statid == "UNKNOWN ":
statid = dropid[0:8]
# subtype = codes_get(bufr,'rdbSubtype')
sondetype = codes_get(bufr, "radiosondeType")
if sondetype == CODES_MISSING_LONG:
sondetype = 0
slat = codes_get_array(bufr, "latitude")
slon = codes_get_array(bufr, "longitude")
slat = np.where(slat != CODES_MISSING_DOUBLE, slat, np.nan)
slon = np.where(slon != CODES_MISSING_DOUBLE, slon, np.nan)
try:
htg = codes_get(bufr, "heightOfStationGroundAboveMeanSeaLevel")
if htg == CODES_MISSING_DOUBLE:
htg = np.nan
except Exception:
htg = np.nan
try:
htp = codes_get(bufr, "heightOfBarometerAboveMeanSeaLevel")
if htp == CODES_MISSING_DOUBLE:
htp = np.nan
except Exception:
htp = np.nan
year = codes_get(bufr, "year")
month = codes_get(bufr, "month")
day = codes_get(bufr, "day")
hour = codes_get(bufr, "hour")
minute = codes_get(bufr, "minute")
try:
second = codes_get(bufr, "second")
if second == CODES_MISSING_LONG:
second = 0
except Exception:
second = 0
date = str.format("%i%.2i%.2i" % (year, month, day))
time = str.format("%.2i%.2i%.2i" % (hour, minute, second))
try:
windsp = codes_get_array(bufr, "windSpeed")
except Exception:
codes_release(bufr)
continue
print(
"Ob: %7i %8s %s %s %7.3f %8.3f %6.1f %6.1f %3i %4i"
% (
cnt,
statid,
date,
time,
slat[0],
slon[0],
htg,
htp,
sondetype,
len(windsp),
)
)
try:
rsnumber = codes_get(bufr, "radiosondeSerialNumber")
rssoftware = codes_get(bufr, "softwareVersionNumber")
balloonwt = codes_get(bufr, "weightOfBalloon")
print("RS number/software/balloonwt ", rsnumber, rssoftware, balloonwt)
except Exception:
rsnumber = 0
try:
htec = codes_get(
bufr, "heightOfStation"
) # Height from WMO list (appended by ECMWF)
if htec == CODES_MISSING_LONG:
htec = np.nan
print(
"WMO list lat, lon, ht: %s %7.3f %8.3f %6.1f"
% (statid, slat[1], slon[1], htec)
)
except Exception:
htec = np.nan
# get all the timePeriods
dtime = codes_get_array(bufr, "timePeriod")
try:
pressure = codes_get_array(bufr, "pressure")
except Exception:
codes_release(bufr)
continue
vsSignif = codes_get_array(bufr, "extendedVerticalSoundingSignificance")
try:
geopoth = codes_get_array(bufr, "nonCoordinateGeopotentialHeight")
except Exception:
codes_release(bufr)
continue
dlat = codes_get_array(bufr, "latitudeDisplacement")
dlon = codes_get_array(bufr, "longitudeDisplacement")
airt = codes_get_array(bufr, "airTemperature")
dewt = codes_get_array(bufr, "dewpointTemperature")
windd = codes_get_array(bufr, "windDirection")
dtime = np.where(dtime != CODES_MISSING_LONG, dtime, np.nan)
dlat = np.where(dlat != CODES_MISSING_DOUBLE, dlat, np.nan)
dlon = np.where(dlon != CODES_MISSING_DOUBLE, dlon, np.nan)
airt = np.where(airt != CODES_MISSING_DOUBLE, airt, np.nan)
dewt = np.where(dewt != CODES_MISSING_DOUBLE, dewt, np.nan)
windd = np.where(windd != CODES_MISSING_LONG, windd, np.nan)
windsp = np.where(windsp != CODES_MISSING_DOUBLE, windsp, np.nan)
geopoth = np.where(geopoth != CODES_MISSING_LONG, geopoth, np.nan)
pressure = np.where(pressure != CODES_MISSING_DOUBLE, pressure, np.nan)
# pressure = np.where(pressure > -1e10, pressure, np.nan)
print(
"level dtime dlat dlon pressure geopotH airTemp dewPtT windDir windSp signif"
)
for i in range(0, len(windsp)):
if llstdonly and vsSignif[i] != 65536:
continue
print(
"%5i %6.1f %6.3f %6.3f %8.1f %7.1f %7.2f %7.2f %7.2f %7.2f %7i"
% (
i + 1,
dtime[i],
dlat[i],
dlon[i],
pressure[i],
geopoth[i],
airt[i],
dewt[i],
windd[i],
windsp[i],
vsSignif[i],
)
)
# delete handle
codes_release(bufr)
# close the file
f.close()
print("Finishing normally. Number of BUFR records read: ", cnt)
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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