def prepare_smb(dry=False):
logger.info("processing variable SMB")
SMB_files = [
"DMI-HIRHAM5_GL2_ERAI_2001_2010_gld_DM.nc.gz",
"DMI-HIRHAM5_GL2_ERAI_2011_2014_gld_DM.nc.gz"
]
smb_files = []
for smb_file in SMB_files:
logger.info("extracting {}".format(smb_file))
cmd = ["gunzip", smb_file]
sub.call(cmd)
smb_files.append(smb_file[:-3])
smb_merged_file_daily_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_SMB_{}.nc".format(
daily_mean)
smb_merged_file_time_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_SMB_{}.nc".format(
time_mean)
if dry == False:
logger.info("merge files {} to {}".format(smb_files,
smb_merged_file_daily_mean))
cdo.mergetime(input=" ".join(smb_files),
output=smb_merged_file_daily_mean)
# Convert mm to m and then to kg m-2
logger.info("calculate time mean")
cdo.ydaymean(
input="-mulc," + str(ice_density / 1000) + " -del29feb " +
smb_merged_file_daily_mean,
output=smb_merged_file_time_mean,
)
logger.info("adjusting time axis")
adjust_time_axis(smb_merged_file_time_mean)
logger.info("renaming variable")
rDict = {"gld": "climatic_mass_balance"}
nco.ncrename(input=smb_merged_file_time_mean,
options=[c.Rename("variable", rDict)])
opt = [
c.Atted(mode="o",
att_name="units",
var_name="climatic_mass_balance",
value="kg m-2 day-1"),
c.Atted(
mode="o",
att_name="standard_name",
var_name="climatic_mass_balance",
value="land_ice_surface_specific_mass_balance_flux",
),
]
nco.ncatted(input=smb_merged_file_time_mean, options=opt)
return smb_merged_file_time_mean
def prepare_pr(dry=False):
logger.info("processing variable PR")
PR_files = [
"DMI-HIRHAM5_GL2_ERAI_2001_2010_PR_DM.nc.gz",
"DMI-HIRHAM5_GL2_ERAI_2011_2014_PR_DM.nc.gz"
]
pr_files = []
for pr_file in PR_files:
logger.info("extracting {}".format(pr_file))
cmd = ["gunzip", pr_file]
sub.call(cmd)
pr_files.append(pr_file[:-3])
pr_merged_file_daily_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_PR_{}.nc".format(
daily_mean)
pr_merged_file_time_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_PR_{}.nc".format(
time_mean)
if dry == False:
logger.info("merge files {} to {}".format(pr_files,
pr_merged_file_daily_mean))
cdo.mergetime(input=" ".join(pr_files),
output=pr_merged_file_daily_mean)
logger.info("calculate time mean")
tmpfile = cdo.ydaymean(input="-del29feb " + pr_merged_file_daily_mean)
logger.info("removing height dimension")
nco.ncwa(input=tmpfile,
output=pr_merged_file_time_mean,
average="height")
logger.info("adjusting time axis")
adjust_time_axis(pr_merged_file_time_mean)
logger.info("renaming variable")
rDict = {"pr": "precipitation"}
nco.ncrename(input=pr_merged_file_time_mean,
options=[c.Rename("variable", rDict)])
opt = [
c.Atted(mode="o",
att_name="units",
var_name="precipitation",
value="kg m-2 day-1"),
c.Atted(mode="o",
att_name="standard_name",
var_name="precipitation",
value="precipitation_flux"),
]
nco.ncatted(input=pr_merged_file_time_mean, options=opt)
return pr_merged_file_time_mean
'ey': 'vvelsurf_error'
}
basedir = 'measures'
basename = 'greenland_vel_mosaic250'
version = 'v1'
gdal_nc_options = gdal.TranslateOptions(format='netCDF')
ifile = '.'.join(['_'.join([basename, version]), 'tif'])
ofile_merged = '.'.join(['_'.join([basename, version]), 'nc'])
ifile_wp = os.path.join(basedir, ifile)
ofile_merged_wp = os.path.join(basedir, ofile_merged)
logger.info('Converting {} to {}'.format(ifile_wp, ofile_merged_wp))
gdal.Translate(ofile_merged_wp, ifile_wp, options=gdal_nc_options)
rDict = {'Band1': 'velsurf_mag'}
opt = [c.Rename('variable', rDict)]
nco.ncrename(input=ofile_merged_wp, options=opt)
opt = [
c.Atted(mode="o",
att_name="proj4",
var_name='global',
value="+init=epsg:3413",
stype='c'),
c.Atted(mode="o",
att_name="units",
var_name='velsurf_mag',
value="m year-1")
]
nco.ncatted(input=ofile_merged_wp, options=opt)
for mvar in ('vx', 'vy', 'ex', 'ey'):
ifile = '.'.join(['_'.join([basename, mvar, version]), 'tif'])
def prepare_tas(dry=False):
logger.info("processing variable TAS")
TAS_files = [
"DMI-HIRHAM5_GL2_ERAI_2001_2010_TAS_DM.nc.gz",
"DMI-HIRHAM5_GL2_ERAI_2011_2014_TAS_DM.nc.gz"
]
tas_files = []
for tas_file in TAS_files:
logger.info("extracting {}".format(tas_file))
cmd = ["gunzip", tas_file]
# sub.call(cmd)
tas_files.append(tas_file[:-3])
tas_merged_file_daily_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_TAS_{}.nc".format(
daily_mean)
tas_merged_file_time_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_TAS_{}.nc".format(
time_mean)
if dry == False:
logger.info("merge files {} to {}".format(tas_files,
tas_merged_file_daily_mean))
tmpfile = cdo.mergetime(input=" ".join(tas_files))
logger.info("removing height dimension")
nco.ncwa(input=tmpfile,
output=tas_merged_file_daily_mean,
average="height")
logger.info("adjusting time axis")
adjust_time_axis(tas_merged_file_daily_mean, "2001-1-1", "2015-1-1",
"days", "1980-1-1", "daily")
opt = [
c.Atted(mode="o",
att_name="units",
var_name="time",
value="days since 1980-01-01 03:00:00")
]
nco.ncatted(input=tas_merged_file_daily_mean, options=opt)
logger.info("calculate time mean")
cdo.timmean(input=tas_merged_file_daily_mean,
output=tas_merged_file_time_mean)
logger.info("renaming variable")
rDict = {"tas": "air_temp"}
nco.ncrename(input=tas_merged_file_time_mean,
options=[c.Rename("variable", rDict)])
logger.info("calculate time mean")
tmpfile = cdo.timmean(input=tas_merged_file_daily_mean)
logger.info("renaming variable")
rDict = {"tas": "air_temp_mean_annual"}
nco.ncrename(input=tmpfile, options=[c.Rename("variable", rDict)])
nco.ncks(input=tmpfile, output=tas_merged_file_time_mean, append=True)
logger.info("calculate standard deviation")
tmpfile = cdo.timstd(input=tas_merged_file_daily_mean)
logger.info("renaming variable")
rDict = {"tas": "air_temp_sd"}
nco.ncrename(input=tmpfile, options=[c.Rename("variable", rDict)])
nco.ncks(input=tmpfile, output=tas_merged_file_time_mean, append=True)
logger.info("calculate mean July temp")
tmpfile = cdo.timmean(input="-selmonth,7 " +
tas_merged_file_daily_mean)
logger.info("renaming variable")
rDict = {"tas": "air_temp_mean_july"}
nco.ncrename(input=tmpfile, options=[c.Rename("variable", rDict)])
nco.ncks(input=tmpfile, output=tas_merged_file_time_mean, append=True)
opt = [
c.Atted(mode="d",
att_name="standard_name",
var_name="air_temp_mean_annual"),
c.Atted(mode="d",
att_name="standard_name",
var_name="air_temp_mean_july"),
c.Atted(mode="d", att_name="standard_name",
var_name="air_temp_sd"),
]
nco.ncatted(input=tas_merged_file_time_mean, options=opt)
return tas_merged_file_time_mean
nco.ncks(input=tas_merged_file_time_mean,
output=merged_file_time_mean,
append=True)
# add topo file
logger.info("removing height dimension of topo file")
topo_file_tmp_1 = "tmp1_topo_geog.nc"
topo_file_tmp_2 = "tmp2_topo_geog.nc"
nco.ncwa(input=topo_file, output=topo_file_tmp_1, average="height")
nco.ncwa(input=topo_file_tmp_1, output=topo_file_tmp_2, average="time")
logger.info("renaming variables and dimensions")
rDict = {"var6": "usurf"}
dDict = {"x": "rlon", "y": "rlat"}
nco.ncrename(
input=topo_file_tmp_2,
options=[c.Rename("variable", rDict),
c.Rename("dimension", dDict)])
logger.info("add topo file {} to {}".format(topo_file, merged_file_time_mean))
nco.ncks(input=topo_file_tmp_2,
output=merged_file_time_mean,
append=True,
variable="usurf")
opt = [
c.Atted(mode="o", att_name="units", var_name="usurf", value="m"),
c.Atted(mode="o",
att_name="standard_name",
var_name="usurf",
value="surface_altitude"),
]
nco.ncatted(input=merged_file_time_mean, options=opt)
pr_merged_file_time_mean = "DMI-HIRHAM5_GL2_ERAI_1980_2014_PR_{}.nc".format(time_mean)
logger.info("calculate time mean")
cdo.timmean(input=pr_merged_file_daily_mean, output=pr_merged_file_time_mean)
# # add topo file
# logger.info('add topo file {} to {}'.format(topo_file, pr_merged_file_time_mean))
# nco.ncks(input=topo_file, output=pr_merged_file_time_mean, append=True)
for grid_spacing in (18000, 9000, 4500, 3600, 3000, 2400, 1800, 1500, 1200, 900, 600, 450, 300):
grid_file = "epsg3413_griddes_{}m.nc".format(grid_spacing)
logger.info("generating grid description {}".format(grid_file))
create_epsg3413_grid(grid_file, grid_spacing)
epsg3414_pr_merged_file_time_mean = "DMI-HIRHAM5_GL2_ERAI_1980_2014_PR_{}_EPSG3413_{}m.nc".format(
time_mean, grid_spacing
)
logger.info("Remapping {} to {}".format(pr_merged_file_time_mean, epsg3414_pr_merged_file_time_mean))
tmpfile = cdo.remapycon(
"{} -selvar,pr -setgrid,{}".format(grid_file, rotated_grid_file),
input=pr_merged_file_time_mean,
options="-f nc4",
)
cdo.setmisstoc(0, input=tmpfile, output=epsg3414_pr_merged_file_time_mean)
nco.ncks(input=grid_file, output=epsg3414_pr_merged_file_time_mean, append=True)
opt = [
c.Atted(mode="d", att_name="_FillValue", var_name="pr"),
c.Atted(mode="d", att_name="missing_value", var_name="pr"),
c.Atted(mode="o", att_name="grid_mapping", var_name="pr", value="mapping"),
]
nco.ncatted(input=epsg3414_pr_merged_file_time_mean, options=opt)
rDict = {"pr": "precipitation"}
nco.ncrename(input=epsg3414_pr_merged_file_time_mean, options=[c.Rename("variable", rDict)])
def prepare_tas(dry=False):
logger.info("processing variable TAS")
TAS_files = [
"DMI-HIRHAM5_GL2_ERAI_2001_2010_TAS_DM.nc.gz",
"DMI-HIRHAM5_GL2_ERAI_2011_2014_TAS_DM.nc.gz"
]
tas_files = []
for tas_file in TAS_files:
logger.info("extracting {}".format(tas_file))
cmd = ["gunzip", tas_file]
sub.call(cmd)
tas_files.append(tas_file[:-3])
tas_merged_file_daily_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_TAS_{}.nc".format(
daily_mean)
tas_merged_file_time_mean = "DMI-HIRHAM5_GL2_ERAI_2001_2014_TAS_{}.nc".format(
time_mean)
if dry == False:
logger.info("merge files {} to {}".format(tas_files,
tas_merged_file_daily_mean))
cdo.mergetime(input=" ".join(tas_files),
output=tas_merged_file_daily_mean)
logger.info("calculate time mean")
tmpfile = cdo.ydaymean(input="-del29feb " + tas_merged_file_daily_mean)
logger.info("removing height dimension")
nco.ncwa(input=tmpfile,
output=tas_merged_file_time_mean,
average="height")
logger.info("adjusting time axis")
adjust_time_axis(tas_merged_file_time_mean)
logger.info("renaming variable")
rDict = {"tas": "air_temp"}
nco.ncrename(input=tas_merged_file_time_mean,
options=[c.Rename("variable", rDict)])
logger.info("calculate standard deviation")
tmpfile = cdo.ydaystd(input="-del29feb " + tas_merged_file_daily_mean)
logger.info("removing height dimension")
tasstdfile = "tmp_tasstd.nc"
nco.ncwa(input=tmpfile, output=tasstdfile, average="height")
logger.info("adjusting time axis")
adjust_time_axis(tasstdfile)
logger.info("renaming variable")
rDict = {"tas": "air_temp_sd"}
nco.ncrename(input=tasstdfile, options=[c.Rename("variable", rDict)])
nco.ncks(input=tasstdfile,
output=tas_merged_file_time_mean,
append=True)
opt = [
c.Atted(mode="d", att_name="standard_name", var_name="air_temp_sd")
]
nco.ncatted(input=tas_merged_file_time_mean, options=opt)
return tas_merged_file_time_mean
