def get_cru_file(var=None):
"""Returns a path to the desired CRU baseline climate file.
If the file is not present, download it.
Parameters
----------
var : str
'tmp' for temperature
'pre' for precipitation
Returns
-------
str
path to the CRU file
"""
# Be sure input makes sense
if var not in ['tmp', 'pre']:
raise InvalidParamsError('CRU variable {} does not exist!'.format(var))
# Download
cru_filename = CRU_BASE.format(var)
cru_url = CRU_SERVER + '{}/'.format(var) + cru_filename + '.gz'
return utils.file_extractor(utils.file_downloader(cru_url))
def get_histalp_file(var=None):
"""Returns a path to the desired HISTALP baseline climate file.
If the file is not present, download it.
Parameters
----------
var : str
'tmp' for temperature
'pre' for precipitation
Returns
-------
str
path to the CRU file
"""
# Be sure input makes sense
if var not in ['tmp', 'pre']:
raise InvalidParamsError('HISTALP variable {} '
'does not exist!'.format(var))
# File to look for
if var == 'tmp':
bname = 'HISTALP_temperature_1780-2014.nc'
else:
bname = 'HISTALP_precipitation_all_abs_1801-2014.nc'
h_url = HISTALP_SERVER + bname + '.bz2'
return utils.file_extractor(utils.file_downloader(h_url))
def get_cru_cl_file():
"""Returns the path to the unpacked CRU CL file."""
return utils.file_extractor(utils.file_downloader(CRU_CL))