def __init__(self, date, sw_ds, wind_rds, res=500):
datetime_list = []
for hour in range(0, 24):
datetime_list.append(datetime(date.year, date.month, date.day, hour))
part_hourly_energy = partial(delta_swe_hourly_wrapper,
shortwave_ds = sw_ds,
wind_redistribution = wind_rds,
res=500)
pool = Pool(processes=cpu_count())
daily_energy_list = pool.map(part_hourly_energy, datetime_list)
pool.close()
pool.join()
self.daily_energy = 0.
self.daily_precip_snow = 0.
for i in range(0, len(daily_energy_list)):
self.daily_energy += daily_energy_list[i][0]
self.daily_precip_snow += daily_energy_list[i][1] / 1000.
self.daily_energy[self.daily_energy < 0.] = 0.
sca_fn = "SCA/" + str(date.year) + "/sca" + str(date.year) + \
str(date.month).zfill(2) + str(date.day).zfill(2) + ".tif"
self.FSCA = gdal.Open(sca_fn, GA_ReadOnly).ReadAsArray()
self.FRA = gdal.Open("vegetation/amr_nlcd2011_500m.tif", GA_ReadOnly).ReadAsArray().astype(float)
self.FRA[self.FRA >= 100.0] = 99.0
self.FSCA = self.FSCA / (1.0 - self.FRA / 100.0)
self.FSCA[self.FSCA > 1.0] = 1.0
self.delta_swe = self.FSCA * self.daily_energy * 3600.0 / (343000.0 * 1000.0) - self.daily_precip_snow
export_fn = "output/swe_change_reset_zero_hourly/" + str(date.year) + str(date.month).zfill(2) + \
str(date.day).zfill(2) + "delta_swe.tif"
array2raster(sca_fn, export_fn, self.delta_swe, 0, 0)
daily_energy_list = None
self.daily_energy = None
self.FSCA = None
self.FRA = None
self.delta_swe = None
gc.collect()
def sum_daily_delta_swe(wy):
end_month_list = [6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4]
end_day_list = [30, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30]
i = wy - 2001
print "Start summing up year of", wy
start_date = date(wy, 4, 1)
end_date = date(wy, end_month_list[i], end_day_list[i])
temp_date = end_date
accumulate_swe = 0.
while temp_date >= start_date:
delta_swe_fn = "output/swe_change_reset_zero_hourly/" + str(temp_date.year) + str(temp_date.month).zfill(2) + \
str(temp_date.day).zfill(2) + "delta_swe.tif"
delta_swe = gdal.Open(delta_swe_fn, GA_ReadOnly).ReadAsArray()
accumulate_swe += delta_swe
export_fn = "output/swe_500m_reset_zero_hourly/" + str(wy) + "/" + str(wy) + str(temp_date.month).zfill(2) + \
str(temp_date.day).zfill(2) + "_swe.tif"
array2raster(delta_swe_fn, export_fn, accumulate_swe, 0., 0.)
temp_date -= timedelta(days=1)