reanalysis-era5-single-levels Peak Wave Period (ppd1)

[samhughes-0506]

What happened?

I've been attempting debug my python script to download swh and ppd1 (as per Table 7: [https://confluence.ecmwf.int/display/CKB/ERA5%3A+data+documentation#ERA5:datadocumentation-Introduction]), I've implemented error statements to check for ppd1 and I'm having no luck. Is there a mismatch between the documentation and name on data set?

What are the steps to reproduce the bug?

import os
import cdsapi
import xarray as xr
import pandas as pd
import logging
from datetime import datetime, timedelta
from concurrent.futures import ThreadPoolExecutor, as_completed
import time

# Set up logging
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')

def validate_dates(start_date, end_date):
    """Validate that the start date is not after the end date."""
    if start_date > end_date:
        raise ValueError("Start date must be on or before end date.")

def generate_date_range(start_date, end_date):
    """Generate a list of dates between start_date and end_date."""
    date_list = []
    current_date = start_date
    while current_date <= end_date:
        date_list.append(current_date.strftime('%Y-%m-%d'))
        current_date += timedelta(days=1)
    return date_list

def download_era5_data(date_str):
    """Download ERA5 data for the given date."""
    c = cdsapi.Client()
    year, month, day = date_str.split('-')
    filename = f"wave_data_{year}_{month}_{day}.nc"

    # Retry mechanism for download failures
    max_retries = 3
    for attempt in range(max_retries):
        try:
            if not os.path.exists(filename):
                logging.info(f"Downloading {filename}...")
                c.retrieve(
                    'reanalysis-era5-single-levels',
                    {
                        'product_type': 'reanalysis',
                        'variable': [
                            'significant_height_of_combined_wind_waves_and_swell',
                            'peak_wave_period',
                        ],
                        'year': year,
                        'month': month,
                        'day': day,
                        'time': [
                            '00:00', '01:00', '02:00', '03:00', '04:00', '05:00', '06:00',
                            '07:00', '08:00', '09:00', '10:00', '11:00', '12:00', '13:00',
                            '14:00', '15:00', '16:00', '17:00', '18:00', '19:00', '20:00',
                            '21:00', '22:00', '23:00'
                        ],
                        'format': 'netcdf',
                    },
                    filename
                )
            else:
                logging.info(f"{filename} already exists. Skipping download.")
            return filename
        except Exception as e:
            logging.error(f"Error downloading {filename} on attempt {attempt + 1}: {e}")
            time.sleep(5)
    logging.error(f"Failed to download {filename} after {max_retries} attempts.")
    return None

def process_file(file_path):
    """Process a single NetCDF file and extract relevant variables."""
    logging.info(f"Processing file: {file_path}")
    
    if not os.path.exists(file_path):
        logging.error(f"File not found: {file_path}")
        return None
    
    try:
        ds = xr.open_dataset(file_path)
        logging.info(f"File opened successfully: {file_path}")
        
        # Log and check variable names in the dataset
        logging.info(f"Variables in dataset: {ds.variables.keys()}")
        
        if 'swh' not in ds.variables:
            logging.warning("Variable 'significant_height_of_combined_wind_waves_and_swell' or 'swh' not found.")
            return None
        if 'pp1d' not in ds.variables and 'peak_wave_period' not in ds.variables:
            logging.warning("Variable 'peak_wave_period' or 'pp1d' not found.")
            return None
        
        # If variable names are not consistent, assign the correct ones
        swh_var = ds['swh'] if 'swh' in ds.variables else ds['significant_height_of_combined_wind_waves_and_swell']
        pp1d_var = ds['pp1d'] if 'pp1d' in ds.variables else ds['peak_wave_period']
        
        return pd.DataFrame({
            'time': ds['valid_time'].values,
            'swh': swh_var.values.flatten(),
            'pp1d': pp1d_var.values.flatten()
        })
    
    except Exception as e:
        logging.error(f"Error processing file {file_path}: {e}")
        return None

def reindex_to_common_grid(datasets):
    """Reindex datasets to a common grid."""
    common_time = datasets[0]['time']
    
    reindexed_datasets = []
    for df in datasets:
        try:
            df = df.set_index('time').reindex(common_time)
            reindexed_datasets.append(df)
        except Exception as e:
            logging.error(f"Error reindexing dataset: {e}")
    
    return reindexed_datasets

def concatenate_datasets(datasets):
    """Concatenate datasets into a single DataFrame."""
    try:
        concatenated = pd.concat(datasets)
        logging.info("Successfully concatenated datasets.")
        return concatenated
    except Exception as e:
        logging.error(f"Error concatenating datasets: {e}")
        return None

def save_to_csv(df, filename='combined_wave_data.csv'):
    """Save the combined DataFrame to a CSV file."""
    if df is not None:
        try:
            df.to_csv(filename, index=False)
            logging.info(f"Data saved to '{filename}'.")
        except Exception as e:
            logging.error(f"Error saving data to CSV: {e}")

def main(start_year, start_month, start_day, end_year, end_month, end_day):
    """Main function to download, process, and analyze data."""
    start_date = datetime(start_year, start_month, start_day)
    end_date = datetime(end_year, end_month, end_day)
    
    validate_dates(start_date, end_date)
    date_range = generate_date_range(start_date, end_date)

    with ThreadPoolExecutor(max_workers=10) as executor:
        future_to_date = {executor.submit(download_era5_data, date): date for date in date_range}
        downloaded_files = []
        for future in as_completed(future_to_date):
            result = future.result()
            if result:
                downloaded_files.append(result)

    if not downloaded_files:
        logging.warning("No files were successfully downloaded.")
        return

    datasets = []
    for file_path in downloaded_files:
        df = process_file(file_path)
        if df is not None:
            datasets.append(df)
    
    if datasets:
        reindexed_datasets = reindex_to_common_grid(datasets)
        concatenated_data = concatenate_datasets(reindexed_datasets)
        save_to_csv(concatenated_data)
    else:
        logging.warning("No datasets to combine.")

# Run the main function with specified start and end dates
if __name__ == "__main__":
    start_year = 2017
    start_month = 1
    start_day = 1
    end_year = 2017
    end_month = 1
    end_day = 10
    
    main(start_year, start_month, start_day, end_year, end_month, end_day)

Version

0.7.1

Platform (OS and architecture)

Windows 10

Relevant log output

024-08-26 16:48:49,535 - INFO - Processing file: wave_data_2017_01_10.nc
2024-08-26 16:48:49,614 - INFO - File opened successfully: wave_data_2017_01_10.nc
2024-08-26 16:48:49,617 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-10T00:00:00.000000000', '2017-01-10T01:00:00.000000000',
       '2017-01-10T02:00:00.000000000', '2017-01-10T03:00:00.000000000',
       '2017-01-10T04:00:00.000000000', '2017-01-10T05:00:00.000000000',
       '2017-01-10T06:00:00.000000000', '2017-01-10T07:00:00.000000000',
       '2017-01-10T08:00:00.000000000', '2017-01-10T09:00:00.000000000',
       '2017-01-10T10:00:00.000000000', '2017-01-10T11:00:00.000000000',
       '2017-01-10T12:00:00.000000000', '2017-01-10T13:00:00.000000000',
       '2017-01-10T14:00:00.000000000', '2017-01-10T15:00:00.000000000',
       '2017-01-10T16:00:00.000000000', '2017-01-10T17:00:00.000000000',
       '2017-01-10T18:00:00.000000000', '2017-01-10T19:00:00.000000000',
       '2017-01-10T20:00:00.000000000', '2017-01-10T21:00:00.000000000',
       '2017-01-10T22:00:00.000000000', '2017-01-10T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:49,828 - ERROR - Error processing file wave_data_2017_01_10.nc: All arrays must be of the same length
2024-08-26 16:48:49,841 - INFO - Processing file: wave_data_2017_01_08.nc
2024-08-26 16:48:49,858 - INFO - File opened successfully: wave_data_2017_01_08.nc
2024-08-26 16:48:49,860 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-08T00:00:00.000000000', '2017-01-08T01:00:00.000000000',
       '2017-01-08T02:00:00.000000000', '2017-01-08T03:00:00.000000000',
       '2017-01-08T04:00:00.000000000', '2017-01-08T05:00:00.000000000',
       '2017-01-08T06:00:00.000000000', '2017-01-08T07:00:00.000000000',
       '2017-01-08T08:00:00.000000000', '2017-01-08T09:00:00.000000000',
       '2017-01-08T10:00:00.000000000', '2017-01-08T11:00:00.000000000',
       '2017-01-08T12:00:00.000000000', '2017-01-08T13:00:00.000000000',
       '2017-01-08T14:00:00.000000000', '2017-01-08T15:00:00.000000000',
       '2017-01-08T16:00:00.000000000', '2017-01-08T17:00:00.000000000',
       '2017-01-08T18:00:00.000000000', '2017-01-08T19:00:00.000000000',
       '2017-01-08T20:00:00.000000000', '2017-01-08T21:00:00.000000000',
       '2017-01-08T22:00:00.000000000', '2017-01-08T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:50,067 - ERROR - Error processing file wave_data_2017_01_08.nc: All arrays must be of the same length
2024-08-26 16:48:50,080 - INFO - Processing file: wave_data_2017_01_05.nc
2024-08-26 16:48:50,097 - INFO - File opened successfully: wave_data_2017_01_05.nc
2024-08-26 16:48:50,099 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-05T00:00:00.000000000', '2017-01-05T01:00:00.000000000',
       '2017-01-05T02:00:00.000000000', '2017-01-05T03:00:00.000000000',
       '2017-01-05T04:00:00.000000000', '2017-01-05T05:00:00.000000000',
       '2017-01-05T06:00:00.000000000', '2017-01-05T07:00:00.000000000',
       '2017-01-05T08:00:00.000000000', '2017-01-05T09:00:00.000000000',
       '2017-01-05T10:00:00.000000000', '2017-01-05T11:00:00.000000000',
       '2017-01-05T12:00:00.000000000', '2017-01-05T13:00:00.000000000',
       '2017-01-05T14:00:00.000000000', '2017-01-05T15:00:00.000000000',
       '2017-01-05T16:00:00.000000000', '2017-01-05T17:00:00.000000000',
       '2017-01-05T18:00:00.000000000', '2017-01-05T19:00:00.000000000',
       '2017-01-05T20:00:00.000000000', '2017-01-05T21:00:00.000000000',
       '2017-01-05T22:00:00.000000000', '2017-01-05T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:50,304 - ERROR - Error processing file wave_data_2017_01_05.nc: All arrays must be of the same length
2024-08-26 16:48:50,319 - INFO - Processing file: wave_data_2017_01_01.nc
2024-08-26 16:48:50,335 - INFO - File opened successfully: wave_data_2017_01_01.nc
2024-08-26 16:48:50,337 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-01T00:00:00.000000000', '2017-01-01T01:00:00.000000000',
       '2017-01-01T02:00:00.000000000', '2017-01-01T03:00:00.000000000',
       '2017-01-01T04:00:00.000000000', '2017-01-01T05:00:00.000000000',
       '2017-01-01T06:00:00.000000000', '2017-01-01T07:00:00.000000000',
       '2017-01-01T08:00:00.000000000', '2017-01-01T09:00:00.000000000',
       '2017-01-01T10:00:00.000000000', '2017-01-01T11:00:00.000000000',
       '2017-01-01T12:00:00.000000000', '2017-01-01T13:00:00.000000000',
       '2017-01-01T14:00:00.000000000', '2017-01-01T15:00:00.000000000',
       '2017-01-01T16:00:00.000000000', '2017-01-01T17:00:00.000000000',
       '2017-01-01T18:00:00.000000000', '2017-01-01T19:00:00.000000000',
       '2017-01-01T20:00:00.000000000', '2017-01-01T21:00:00.000000000',
       '2017-01-01T22:00:00.000000000', '2017-01-01T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:50,539 - ERROR - Error processing file wave_data_2017_01_01.nc: All arrays must be of the same length
2024-08-26 16:48:50,553 - INFO - Processing file: wave_data_2017_01_06.nc
2024-08-26 16:48:50,570 - INFO - File opened successfully: wave_data_2017_01_06.nc
2024-08-26 16:48:50,571 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-06T00:00:00.000000000', '2017-01-06T01:00:00.000000000',
       '2017-01-06T02:00:00.000000000', '2017-01-06T03:00:00.000000000',
       '2017-01-06T04:00:00.000000000', '2017-01-06T05:00:00.000000000',
       '2017-01-06T06:00:00.000000000', '2017-01-06T07:00:00.000000000',
       '2017-01-06T08:00:00.000000000', '2017-01-06T09:00:00.000000000',
       '2017-01-06T10:00:00.000000000', '2017-01-06T11:00:00.000000000',
       '2017-01-06T12:00:00.000000000', '2017-01-06T13:00:00.000000000',
       '2017-01-06T14:00:00.000000000', '2017-01-06T15:00:00.000000000',
       '2017-01-06T16:00:00.000000000', '2017-01-06T17:00:00.000000000',
       '2017-01-06T18:00:00.000000000', '2017-01-06T19:00:00.000000000',
       '2017-01-06T20:00:00.000000000', '2017-01-06T21:00:00.000000000',
       '2017-01-06T22:00:00.000000000', '2017-01-06T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:50,775 - ERROR - Error processing file wave_data_2017_01_06.nc: All arrays must be of the same length
2024-08-26 16:48:50,787 - INFO - Processing file: wave_data_2017_01_09.nc
2024-08-26 16:48:50,804 - INFO - File opened successfully: wave_data_2017_01_09.nc
2024-08-26 16:48:50,806 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-09T00:00:00.000000000', '2017-01-09T01:00:00.000000000',
       '2017-01-09T02:00:00.000000000', '2017-01-09T03:00:00.000000000',
       '2017-01-09T04:00:00.000000000', '2017-01-09T05:00:00.000000000',
       '2017-01-09T06:00:00.000000000', '2017-01-09T07:00:00.000000000',
       '2017-01-09T08:00:00.000000000', '2017-01-09T09:00:00.000000000',
       '2017-01-09T10:00:00.000000000', '2017-01-09T11:00:00.000000000',
       '2017-01-09T12:00:00.000000000', '2017-01-09T13:00:00.000000000',
       '2017-01-09T14:00:00.000000000', '2017-01-09T15:00:00.000000000',
       '2017-01-09T16:00:00.000000000', '2017-01-09T17:00:00.000000000',
       '2017-01-09T18:00:00.000000000', '2017-01-09T19:00:00.000000000',
       '2017-01-09T20:00:00.000000000', '2017-01-09T21:00:00.000000000',
       '2017-01-09T22:00:00.000000000', '2017-01-09T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:51,049 - ERROR - Error processing file wave_data_2017_01_09.nc: All arrays must be of the same length
2024-08-26 16:48:51,062 - INFO - Processing file: wave_data_2017_01_04.nc
2024-08-26 16:48:51,079 - INFO - File opened successfully: wave_data_2017_01_04.nc
2024-08-26 16:48:51,081 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-04T00:00:00.000000000', '2017-01-04T01:00:00.000000000',
       '2017-01-04T02:00:00.000000000', '2017-01-04T03:00:00.000000000',
       '2017-01-04T04:00:00.000000000', '2017-01-04T05:00:00.000000000',
       '2017-01-04T06:00:00.000000000', '2017-01-04T07:00:00.000000000',
       '2017-01-04T08:00:00.000000000', '2017-01-04T09:00:00.000000000',
       '2017-01-04T10:00:00.000000000', '2017-01-04T11:00:00.000000000',
       '2017-01-04T12:00:00.000000000', '2017-01-04T13:00:00.000000000',
       '2017-01-04T14:00:00.000000000', '2017-01-04T15:00:00.000000000',
       '2017-01-04T16:00:00.000000000', '2017-01-04T17:00:00.000000000',
       '2017-01-04T18:00:00.000000000', '2017-01-04T19:00:00.000000000',
       '2017-01-04T20:00:00.000000000', '2017-01-04T21:00:00.000000000',
       '2017-01-04T22:00:00.000000000', '2017-01-04T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:51,286 - ERROR - Error processing file wave_data_2017_01_04.nc: All arrays must be of the same length
2024-08-26 16:48:51,299 - INFO - Processing file: wave_data_2017_01_02.nc
2024-08-26 16:48:51,317 - INFO - File opened successfully: wave_data_2017_01_02.nc
2024-08-26 16:48:51,318 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-02T00:00:00.000000000', '2017-01-02T01:00:00.000000000',
       '2017-01-02T02:00:00.000000000', '2017-01-02T03:00:00.000000000',
       '2017-01-02T04:00:00.000000000', '2017-01-02T05:00:00.000000000',
       '2017-01-02T06:00:00.000000000', '2017-01-02T07:00:00.000000000',
       '2017-01-02T08:00:00.000000000', '2017-01-02T09:00:00.000000000',
       '2017-01-02T10:00:00.000000000', '2017-01-02T11:00:00.000000000',
       '2017-01-02T12:00:00.000000000', '2017-01-02T13:00:00.000000000',
       '2017-01-02T14:00:00.000000000', '2017-01-02T15:00:00.000000000',
       '2017-01-02T16:00:00.000000000', '2017-01-02T17:00:00.000000000',
       '2017-01-02T18:00:00.000000000', '2017-01-02T19:00:00.000000000',
       '2017-01-02T20:00:00.000000000', '2017-01-02T21:00:00.000000000',
       '2017-01-02T22:00:00.000000000', '2017-01-02T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:51,526 - ERROR - Error processing file wave_data_2017_01_02.nc: All arrays must be of the same length
2024-08-26 16:48:51,541 - INFO - Processing file: wave_data_2017_01_07.nc
2024-08-26 16:48:51,558 - INFO - File opened successfully: wave_data_2017_01_07.nc
2024-08-26 16:48:51,560 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-07T00:00:00.000000000', '2017-01-07T01:00:00.000000000',
       '2017-01-07T02:00:00.000000000', '2017-01-07T03:00:00.000000000',
       '2017-01-07T04:00:00.000000000', '2017-01-07T05:00:00.000000000',
       '2017-01-07T06:00:00.000000000', '2017-01-07T07:00:00.000000000',
       '2017-01-07T08:00:00.000000000', '2017-01-07T09:00:00.000000000',
       '2017-01-07T10:00:00.000000000', '2017-01-07T11:00:00.000000000',
       '2017-01-07T12:00:00.000000000', '2017-01-07T13:00:00.000000000',
       '2017-01-07T14:00:00.000000000', '2017-01-07T15:00:00.000000000',
       '2017-01-07T16:00:00.000000000', '2017-01-07T17:00:00.000000000',
       '2017-01-07T18:00:00.000000000', '2017-01-07T19:00:00.000000000',
       '2017-01-07T20:00:00.000000000', '2017-01-07T21:00:00.000000000',
       '2017-01-07T22:00:00.000000000', '2017-01-07T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:51,762 - ERROR - Error processing file wave_data_2017_01_07.nc: All arrays must be of the same length
2024-08-26 16:48:51,775 - INFO - Processing file: wave_data_2017_01_03.nc
2024-08-26 16:48:51,793 - INFO - File opened successfully: wave_data_2017_01_03.nc
2024-08-26 16:48:51,794 - INFO - Variables in dataset: KeysView(Frozen({'number': <xarray.Variable ()> Size: 8B
[1 values with dtype=int64]
Attributes:
    long_name:      ensemble member numerical id
    units:          1
    standard_name:  realization, 'valid_time': <xarray.IndexVariable 'valid_time' (valid_time: 24)> Size: 192B
array(['2017-01-03T00:00:00.000000000', '2017-01-03T01:00:00.000000000',
       '2017-01-03T02:00:00.000000000', '2017-01-03T03:00:00.000000000',
       '2017-01-03T04:00:00.000000000', '2017-01-03T05:00:00.000000000',
       '2017-01-03T06:00:00.000000000', '2017-01-03T07:00:00.000000000',
       '2017-01-03T08:00:00.000000000', '2017-01-03T09:00:00.000000000',
       '2017-01-03T10:00:00.000000000', '2017-01-03T11:00:00.000000000',
       '2017-01-03T12:00:00.000000000', '2017-01-03T13:00:00.000000000',
       '2017-01-03T14:00:00.000000000', '2017-01-03T15:00:00.000000000',
       '2017-01-03T16:00:00.000000000', '2017-01-03T17:00:00.000000000',
       '2017-01-03T18:00:00.000000000', '2017-01-03T19:00:00.000000000',
       '2017-01-03T20:00:00.000000000', '2017-01-03T21:00:00.000000000',
       '2017-01-03T22:00:00.000000000', '2017-01-03T23:00:00.000000000'],
      dtype='datetime64[ns]')
Attributes:
    long_name:      time
    standard_name:  time, 'latitude': <xarray.IndexVariable 'latitude' (latitude: 361)> Size: 3kB
array([ 90. ,  89.5,  89. , ..., -89. , -89.5, -90. ])
Attributes:
    units:             degrees_north
    standard_name:     latitude
    long_name:         latitude
    stored_direction:  decreasing, 'longitude': <xarray.IndexVariable 'longitude' (longitude: 720)> Size: 6kB
array([  0. ,   0.5,   1. , ..., 358.5, 359. , 359.5])
Attributes:
    units:          degrees_east
    standard_name:  longitude
    long_name:      longitude, 'expver': <xarray.Variable (valid_time: 24)> Size: 384B
[24 values with dtype=<U4], 'swh': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140229
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               m
    long_name:                                Significant height of combined ...
    units:                                    m
    standard_name:                            unknown
    GRIB_meanSea:                             0.0, 'pp1d': <xarray.Variable (valid_time: 24, latitude: 361, longitude: 720)> Size: 25MB
[6238080 values with dtype=float32]
Attributes: (12/32)
    GRIB_paramId:                             140231
    GRIB_dataType:                            an
    GRIB_numberOfPoints:                      259920
    GRIB_typeOfLevel:                         meanSea
    GRIB_stepUnits:                           1
    GRIB_stepType:                            instant
    ...                                       ...
    GRIB_totalNumber:                         0
    GRIB_units:                               s
    long_name:                                Peak wave period
    units:                                    s
    standard_name:                            unknown
    GRIB_meanSea:                             0.0}))
2024-08-26 16:48:52,003 - ERROR - Error processing file wave_data_2017_01_03.nc: All arrays must be of the same length
2024-08-26 16:48:52,017 - WARNING - No datasets to combine.

Accompanying data

No response

Organisation

University of Edinburgh