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ECMWF_query.py
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ECMWF_query.py
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import os
import logging
class ECMWF_query:
def __init__(self):
self.setup_logging()
self.use_era5 = True
self.start_year = 2000
self.end_year = 2001
self.project = "ROHO800"
self.area = self.get_area_for_project(self.project)
self.skip_existing_files=True
self.resultsdir = f"../oceanography/ERA5/{self.project}/"
self.debug = False
self.extract_data_every_N_hours = False
self.time_units = "days since 1948-01-01 00:00:00"
self.optionals = True # optional variables to extract depending on ROMS version (Rutgers or Kate)
self.ROMS_version = "Rutgers" # "Rutgers" or "Kate" - the sea-ice component of Kates ROMS version uses downward
# shortwave and not net shortwave to account for albedo of ice.
if not os.path.exists(self.resultsdir):
os.makedirs(self.resultsdir)
if self.use_era5:
self.dataset = 'era5'
self.dataset_class = 'ea'
self.grid = '0.25/0.25'
else:
self.dataset = 'interim'
self.dataset_class = 'ei'
self.grid = '0.75/0.75'
self.reanalysis = 'reanalysis-era5-single-levels' # 'reanalysis-era5-complete'
# https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels?tab=overview
self.parameters = ['10m_u_component_of_wind',
'10m_v_component_of_wind',
'2m_temperature',
'mean_sea_level_pressure',
'mean_surface_downward_long_wave_radiation_flux',
'total_cloud_cover',
'total_precipitation',
'specific_humidity']
if self.ROMS_version == "Kate":
self.parameters.append('mean_surface_downward_short_wave_radiation_flux')
elif self.ROMS_version == "Rutgers":
self.parameters.append('mean_surface_net_short_wave_radiation_flux')
else:
raise Exception("[ECMWF_query] You have to specify ROMS version (Kate or Rutgers)")
# Additional variables that can be downloaded if needed
if self.optionals:
self.parameters.extend([#'evaporation',
#'mean_surface_sensible_heat_flux',
#'mean_surface_latent_heat_flux',
'mean_surface_net_long_wave_radiation_flux'])
if not os.path.exists(self.resultsdir):
os.makedirs(self.resultsdir, exist_ok=True)
def get_area_for_project(self, project):
# Setup project dependent area to extract
# North/West/South/East
return {'ROHO800': '62/1/56/10',
'A20': '90/-180/40/180'}[project]
def setup_logging(self):
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)
def info(self):
logging.info("[ECMWF_query] ERA5: \n Reanalysis: 0.25°x0.25° (atmosphere), 0.5°x0.5° (ocean waves) \n \
Period: 1979 - present \n \
More info on ERA5 can be found here:\n \
https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview")
# List of parameters to download:
# https://apps.ecmwf.int/codes/grib/param-db
# https: // apps.ecmwf.int / data - catalogues / era5 / batch / 3647799 /
def get_parameter_metadata(self, parameter):
return {'2m_temperature': {'parameter_id': '167.128',
'short_name': 't2m',
'roms_name': 'Tair',
'name': '2 metre temperature',
'units': 'K',
'time_name': 'Tair_time'},
'2m_dewpoint_temperature': {'parameter_id': '168.128',
'short_name': 'd2m',
'roms_name': 'Qair',
'name': '2 metre dewpoint temperature',
'units': 'K',
'time_name': 'tdew_time'},
'specific_humidity': {'parameter_id': '133.128',
'short_name': 'q',
'roms_name': 'Qair',
'name': 'specific humidity',
'units': 'kg kg-1',
'time_name': 'qair_time'},
'10m_v_component_of_wind': {'parameter_id': '166.128',
'short_name': 'v10',
'roms_name': 'Vwind',
'name': '10 metre v-wind component',
'units': 'm s-1',
'time_name': 'wind_time'},
'10m_u_component_of_wind': {'parameter_id': '165.128',
'short_name': 'u10',
'roms_name': 'Uwind',
'name': '10 metre u-wind component',
'units': 'm s-1',
'time_name': 'wind_time'},
'mean_sea_level_pressure': {'parameter_id': '151.128',
'short_name': 'msl',
'roms_name': 'Pair',
'name': 'Mean sea level pressure',
'units': 'Pa',
'time_name': 'pair_time'},
'total_cloud_cover': {'parameter_id': '164.128',
'short_name': 'tcc',
'roms_name': 'cloud',
'name': 'Total cloud cover',
'units': '(0-1)',
'time_name': 'cloud_time'},
'total_precipitation': {'parameter_id': '228.128',
'short_name': 'tp',
'roms_name': 'rain',
'name': 'Total precipitation',
'units': 'm',
'time_name': 'rain_time'},
'mean_surface_net_short_wave_radiation_flux': {'parameter_id': '37.235',
'short_name': 'msnswrf',
'roms_name': 'swrad',
'name': 'Mean surface net short-wave radiation flux',
'units': 'W m-2',
'time_name': 'swrad_time'},
'mean_surface_net_long_wave_radiation_flux': {'parameter_id': '38.235',
'short_name': 'msnlwrf',
'roms_name': 'lwrad',
'name': 'Mean surface net long-wave radiation flux',
'units': 'W m-2',
'time_name': 'swrad_time'},
'mean_surface_downward_long_wave_radiation_flux': {'parameter_id': '36.235',
'short_name': 'msdwlwrf',
'roms_name': 'lwrad_down',
'name': 'Mean surface downward long-wave radiation flux',
'units': 'W m-2',
'time_name': 'lwrad_time'},
'mean_surface_latent_heat_flux': {'parameter_id': '34.235',
'short_name': 'mslhf',
'roms_name': 'latent',
'name': 'Surface latent heat flux',
'units': 'W m-2',
'time_name': 'swrad_time'},
'mean_surface_sensible_heat_flux': {'parameter_id': '33.235',
'short_name': 'msshf',
'roms_name': 'sensible',
'name': 'Surface sensible heat flux', 'units': 'W m-2',
'time_name': 'sen_time'},
'evaporation': {'parameter_id': '182.128',
'short_name': 'e',
'roms_name': 'evaporation',
'name': 'Evaporation',
'units': 'm of water equivalent',
'time_name': 'rain_time'},
'mean_surface_downward_short_wave_radiation_flux': {'parameter_id': 'None',
'short_name': 'msdwswrf',
'roms_name': 'swrad',
'name': 'Mean surface downward short-wave radiation flux',
'units': 'W m-2',
'time_name': 'swrad_time'}}[parameter]