def build(self, variable, ftp):
"""Build initial dataset."""
# We need to build these three files
paths = self.get_paths(variable)
# Retrieve rasters
self.get_rasters(variable, ftp)
# Reproject for area calculations
for file in glob(os.path.join(self.tif_folder, "*tif")):
self.reproject(file)
# Convert originals to NetCDF file
files = glob(os.path.join(self.tif_folder, variable + "*tif"))
toNetCDF(tfiles=files, ncfiles=None, savepath=paths["original"],
index=variable, proj=4326, year1=1895, month1=1,
year2=TODAYS_DATE.year - 2, month2=12, wmode="w",
percentiles=False)
# Convert projected files to NetCDF file
files = glob(os.path.join(self.tif_folder, "proj_*tif"))
toNetCDFAlbers(tfiles=files, ncfiles=None, savepath=paths["albers"],
index=variable, proj=PROJ, year1=1895, month1=1,
year2=TODAYS_DATE.year - 2, month2=12, wmode="w",
percentiles=False)
# Create a percentile dataset
toNetCDFPercentile(paths["original"], paths["percentile"])
# Clear temp folder
self._clear_tif()
del base_data
del base_data_proj
# Write changes to file and close
times[n] = days
times_proj[n] = days
values[n] = array
values_proj[n] = array_proj
old.close()
old_proj.close()
# Now recreate the entire percentile data set
print('Reranking percentiles...')
pc_path = os.path.join(pc_folder, index + '.nc')
os.remove(pc_path)
toNetCDFPercentile(original_path, pc_path)
############## If we need to start over ###################################
else:
print(original_path + " not detected, building new dataset...\n")
# Get all of the last day of month files for the index
ftp_years = ftp.nlst()
ftp_years = [f for f in ftp_years if isInt(f)]
# First Date
ftp.cwd(
os.path.join('/Projects/EDDI/CONUS_archive/data/', ftp_years[0]))
ftp_files = ftp.nlst()
ftp_files = [
f for f in ftp_files if f[-17:-13] == "{:02d}mn".format(scale)
# Write changes to file and close
times[n] = days
times_p[n] = days
values[n] = array
values_p[n] = array_p
old.close()
old_p.close()
# Now recreate the entire percentile data set
print('Reranking percentiles...')
pc_path = os.path.join(
data_path, 'data/droughtindices/netcdfs/percentiles',
index_map[index] + '.nc')
os.remove(pc_path)
toNetCDFPercentile(nc_path, pc_path)
else:
############## If we need to start over #######################
print(nc_path + " not detected, building new data set...")
# Get the data from wwdt
print("Downloading the 12 netcdf files for " + index + "...")
for i in tqdm(range(1, 13), position=0):
# These come in monthly files - e.g. all januaries in one file
file_name = '{}_{}_PRISM.nc'.format(index, i)
target_url = wwdt_url + '/' + index + '/' + file_name
temp_path = os.path.join(local_path, 'temp_{}.nc'.format(i))
# Download
try:
year2=todays_date.year,
month2=12,
wmode='w',
percentiles=False)
toNetCDFAlbers(tfiles=tfiles_proj,
ncfiles=None,
savepath=albers_path,
index=variable,
proj=proj,
year1=1895,
month1=1,
year2=todays_date.year,
month2=12,
wmode='w',
percentiles=False)
toNetCDFPercentile(original_path, percentile_path)
# Empty tif folder
for t in glob(os.path.join(tif_folder, '*')):
os.remove(t)
# One last thing, we only have min and max vapor pressure deficit
meanNC(minsrc='data/droughtindices/netcdfs/albers/vpdmin.nc',
maxsrc='data/droughtindices/netcdfs/albers/vpdmax.nc',
dst='data/droughtindices/netcdfs/albers/vpdmean.nc')
meanNC(minsrc='data/droughtindices/netcdfs/percentiles/vpdmin.nc',
maxsrc='data/droughtindices/netcdfs/percentiles/vpdmax.nc',
dst='data/droughtindices/netcdfs/percentiles/vpdmean.nc')
meanNC(minsrc='data/droughtindices/netcdfs/vpdmin.nc',
maxsrc='data/droughtindices/netcdfs/vpdmax.nc',
dst='data/droughtindices/netcdfs/vpdmean.nc')
# Save another projected version
toNetCDFAlbers(tfiles=tfiles_proj,
ncfiles=None,
savepath=ncdir_proj,
index=index,
year1=1980,
month1=1,
year2=todays_date.year,
month2=todays_date.month,
proj=proj,
percentiles=False,
wmode='w')
# Now lets get the percentile values
pc_path = os.path.join(data_path,
"data/droughtindices/netcdfs/" + "percentiles",
index + ".nc")
toNetCDFPercentile(ncdir, pc_path)
# Close connection with FTP server
ftp.quit()
print("Update Complete.")
print("####################################################")
print("#######################################")
print("#######################")
print("############")
print("#####")
print("##")
def update(self, variable, ftp):
"""Update dataset."""
# We need to build these three files
paths = self.get_paths(variable)
# Find the missing files
needed_dates = self.needed_dates(variable, ftp)
# Download needed files
for year, months in needed_dates.items():
# Get all files availabel for this year
ftp.cwd("/monthly/" + variable + "/" + year)
rfiles = ftp.nlst()
rfiles = [f for f in rfiles if "_" + year + "_" not in f]
rfiles.sort()
for rfile in rfiles:
for month in months:
if rfile[-10: -8] == month:
# Update the WGS file
self._clear_temp("*bil")
self._retrieve(variable, rfile, year, ftp)
lfile = os.path.join(self.tif_folder,
f"{variable}_{year}{month}.tif")
with Dataset(paths["original"], "r+") as old:
times = old.variables["time"]
values = old.variables["value"]
n = times.shape[0]
base_data = gdal.Open(lfile)
array = base_data.ReadAsArray()
del base_data
# Catch the day
date = dt.datetime(int(year), int(month), day=15)
days = date - dt.datetime(1900, 1, 1)
days = np.float64(days.days)
# Write changes to file and close
times[n] = days
values[n] = array
# Update the Albers file
self.reproject(lfile)
pfile = os.path.join(
self.tif_folder,
f"proj_{variable}_{year}{month}.tif"
)
with Dataset(paths["albers"], "r+") as old:
times = old.variables["time"]
values = old.variables["value"]
n = times.shape[0]
base_data = gdal.Open(pfile)
array = base_data.ReadAsArray()
del base_data
# Catch the day
date = dt.datetime(int(year), int(month), day=15)
days = date - dt.datetime(1900, 1, 1)
days = np.float64(days.days)
# Write changes to file and close
times[n] = days
values[n] = array
# Reset the percentiles file
toNetCDFPercentile(paths["original"], paths["percentile"])