Request too large when adding grid parameter

[GMavrak]

What happened?

Good morning,

I want to download ocean waves and wind variables for the dataset: 'ERA5 hourly data on single levels from 1940 to present' through the cdsapi (I have migrated to CDS-Beta).

When I execute the request without placing the grid parameter, i.e.:

import cdsapi

dataset = "reanalysis-era5-single-levels"
months = ['0' + str(x) if x < 10 else str(x) for x in range(1, 13)]

request = {
    'product_type': ['reanalysis'],
    'variable': ['10m_u_component_of_wind', '10m_v_component_of_wind', 'mean_wave_direction', 'significant_height_of_combined_wind_waves_and_swell', 'mean_direction_of_total_swell', 'mean_direction_of_wind_waves', 'mean_period_of_total_swell', 'significant_height_of_total_swell', 'significant_height_of_wind_waves'],
    'year': ['2024'],
    'month': months,
    'day': ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
    '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'],
    'data_format': 'grib',
    'download_format': 'unarchived',
    'area': [46, 15, 44.5, 16.5]
}

client = cdsapi.Client()
client.retrieve(dataset, request).download()

the request is executed and downloaded normally. However, when I place the grid parameter in order to have the same spatial granularity in both ocean waves and wind variables, I take the following error:

RuntimeError: 403 Client Error: cost limits exceeded
Your request is too large, please reduce your selection.

Is this behavior expected? Because with the grid parameter, I ask to fetch fewer data, as the wind variables have by default 0.25 granularity.

What are the steps to reproduce the bug?

import cdsapi

dataset = "reanalysis-era5-single-levels"
months = ['0' + str(x) if x < 10 else str(x) for x in range(1, 13)]

request = {
    'product_type': ['reanalysis'],
    'variable': ['10m_u_component_of_wind', '10m_v_component_of_wind', 'mean_wave_direction', 'significant_height_of_combined_wind_waves_and_swell', 'mean_direction_of_total_swell', 'mean_direction_of_wind_waves', 'mean_period_of_total_swell', 'significant_height_of_total_swell', 'significant_height_of_wind_waves'],
    'year': ['2024'],
    'month': months,
    'grid': ['0.5', '0.5'],
    'day': ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'],
    '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'],
    'data_format': 'grib',
    'download_format': 'unarchived',
    'area': [46, 15, 44.5, 16.5]
}

client = cdsapi.Client()
client.retrieve(dataset, request).download()

Version

v0.7.1

Platform (OS and architecture)

Windows 10 x64

Relevant log output

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Accompanying data

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Organisation

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