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OSFWF_GetGfsData_ck.py
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"""
***************************************************************************
OSFWF_GetGfsData.py
-------------------------------------
Copyright (C) 2014 TIGER-NET (www.tiger-net.org)
***************************************************************************
* This plugin is part of the Water Observation Information System (WOIS) *
* developed under the TIGER-NET project funded by the European Space *
* Agency as part of the long-term TIGER initiative aiming at promoting *
* the use of Earth Observation (EO) for improved Integrated Water *
* Resources Management (IWRM) in Africa. *
* *
* WOIS is a free software i.e. you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published *
* by the Free Software Foundation, either version 3 of the License, *
* or (at your option) any later version. *
* *
* WOIS is distributed in the hope that it will be useful, but WITHOUT ANY *
* WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
* for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************
"""
import shutil
import os
from datetime import date, timedelta, datetime
import math
from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
from processing.core.parameters import *
from SWATAlgorithm import SWATAlgorithm
import GetGfsClimateData
class OSFWF_GetGfsData(SWATAlgorithm):
PCP_DST_FOLDER = "PCP_DST_FOLDER"
TMAX_DST_FOLDER = "TMAX_DST_FOLDER"
TMIN_DST_FOLDER = "TMIN_DST_FOLDER"
LEFT_LONG = "LEFT_LONG"
RIGHT_LONG = "RIGHT_LONG"
TOP_LAT = "TOP_LAT"
BOTTOM_LAT = "BOTTOM_LAT"
def __init__(self):
SWATAlgorithm.__init__(self, __file__)
def defineCharacteristics(self):
self.name = "1.1 - Get new NOAA-GFS data (OSFWF)"
self.group = "Operational simulation and forecasting workflow (OSFWF)"
self.addParameter(ParameterFile(OSFWF_GetGfsData.PCP_DST_FOLDER, "Select precipitation folder", True))
self.addParameter(ParameterFile(OSFWF_GetGfsData.TMAX_DST_FOLDER, "Select maximum temperature folder", True))
self.addParameter(ParameterFile(OSFWF_GetGfsData.TMIN_DST_FOLDER, "Select minimum temperature folder", True))
param = ParameterNumber(OSFWF_GetGfsData.LEFT_LONG, "Left longitude", -180, 180, -20)
param.isAdvanced = True
self.addParameter(param)
param = ParameterNumber(OSFWF_GetGfsData.RIGHT_LONG, "Right longitude", -180, 180, 55)
param.isAdvanced = True
self.addParameter(param)
param = ParameterNumber(OSFWF_GetGfsData.TOP_LAT, "Top latitude", -89, 89, 40)
param.isAdvanced = True
self.addParameter(param)
param = ParameterNumber(OSFWF_GetGfsData.BOTTOM_LAT, "Bottom latitude", -89, 89, -40)
param.isAdvanced = True
self.addParameter(param)
def processAlgorithm(self, progress):
# Do GFS processing here
for var in ['APCP','TMAX','TMIN']:
# Set destination folder and level
if var == 'APCP':
progress.setConsoleInfo("Downloading GFS precipitation data...")
progress.setPercentage(0)
dst_folder = self.getParameterValue(OSFWF_GetGfsData.PCP_DST_FOLDER)
level = 'surface'
elif var == 'TMAX':
progress.setConsoleInfo("Downloading GFS maximum temperature data...")
progress.setPercentage(0)
dst_folder = self.getParameterValue(OSFWF_GetGfsData.TMAX_DST_FOLDER)
level = '2_m_above_ground'
elif var == 'TMIN':
progress.setConsoleInfo("Downloading GFS minimum temperature data...")
progress.setPercentage(0)
dst_folder = self.getParameterValue(OSFWF_GetGfsData.TMIN_DST_FOLDER)
level = '2_m_above_ground'
# Setting coordinates
left_long = math.floor(self.getParameterValue(OSFWF_GetGfsData.LEFT_LONG))
right_long = math.ceil(self.getParameterValue(OSFWF_GetGfsData.RIGHT_LONG))
top_lat = math.ceil(self.getParameterValue(OSFWF_GetGfsData.TOP_LAT))
bottom_lat = math.ceil(self.getParameterValue(OSFWF_GetGfsData.BOTTOM_LAT))
if (left_long >= right_long) or (bottom_lat >= top_lat):
raise GeoAlgorithmExecutionException('Error in coordinates: \"Left :' + str(left_long) + \
'< Right: ' + str(right_long) + ', Top :' + str(top_lat) + '> Bottom :' + str(bottom_lat) + '\"')
if os.path.isdir(dst_folder):
# Create and set Forecast folder
forecast_folder = dst_folder + os.sep + 'Forecasts'
if not os.path.isdir(forecast_folder):
os.mkdir(forecast_folder)
# Creating log file
log_file = open(dst_folder + os.sep + "Download_log.txt", "w")
# Write current date to log file
now = date.today()
log_file.write(self.name + ' run: ' + now.strftime('%Y%m%d') + '\n')
log_file.write('Data source: NOAA-GFS\n')
# Finding newest file date and move old forecasted files to forecast folder
dates = []
dirs = os.listdir(dst_folder)
for f in dirs:
if ( os.path.isfile(os.path.join(dst_folder,f)) ):
if (var + '.tif') in f:
dates.append(date(int(f[0:4]),int(f[4:6]),int(f[6:8])))
elif (var + '_Forecast_') in f:
shutil.copy(os.path.join(dst_folder,f),forecast_folder + os.sep + os.path.split(f)[1])
os.remove(os.path.join(dst_folder,f))
# Newest file date +1 or today-60days (if no files) as start date
if dates == []:
first_date = now - timedelta(days=60)
else:
first_date = max(dates) + timedelta(days=1)
log_file.write(var + ' downloading start date: ' + first_date.strftime('%Y%m%d') + '\n')
# Downloading data
forecast_date = GetGfsClimateData.GfsForecastImport(first_date, var, level, dst_folder, left_long, right_long, top_lat, bottom_lat, log_file, progress)
log_file.write('Forecast date ' + var + ': ' + forecast_date.strftime('%Y%m%d') + '\n')
log_file.close()