ERA5-tools
Python scripts to download and view ERA5 climatologic data, as well as to extract time series (hourly to monthly data on many atmospheric and land-surface parameters)
How to AUTHORIZE the execution of the download code on Windows ? (only once)
https://cds.climate.copernicus.eu/api-how-to
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If you do not have an account, please register on the CDS registration page
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Log in
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Copy the code with your personal key (see below), into the file “USER/.cdsapirc” (in Windows environment)
(The file starting with a dot can be created using Notepad: “File> Save as> Type: All files> File name: .cdsfapirc”
url: https://cds.climate.copernicus.eu/api/v2
key: {uid}:{api-key}
Reanalysis ERA5-Land-T MONTHLY data (from 1950 to present)
Download, Mapping and time serie extraction (from Copernicus “Climate Data Store”)
Fonctionel en python 311 mais solution non trouvée dans les cellules 3, 7 et 8 pour afficher les cartes hvplot AVEC CONTOUR ET FOND DE PLAN
Avec évolution de Février 2023 (A AMELIORER EVENTUELLEMENT) pour adaptation au format ERA5-Land-T (Timely updated, NearRealTime = nouvelle dimension ‘expver’)
https://confluence.ecmwf.int/display/CUSF/ERA5+CDS+requests+which+return+a+mixture+of+ERA5+and+ERA5T+data
https://confluence.ecmwf.int/display/CKB/ERA5-Land%3A+data+documentation
MONTHLY Precipitations, runoff, potential evaporation, evaporation, temperature and snow stock.
author: Loïc Duffar https://github.com/loicduffar
How to PROCEED ?
Run cells by order:
- 1) Data download (only NetCDF format here, because more handy than GRIB format)
- 1bis) IF the ERA5 file is already downloaded, start by the 2nd cell instead of the 1rst one
- 2) Customization, initialization and display netCDF file infos
- 3) Plot annual and monthly interannual average maps (and save to files)
- 4) Plot monthly time series (for one pixel and for a possible polygon), and export them to excel file
- 5) Annual maps animation OPTIONNAL
- 6) Montlhy maps animation OPTIONNAL
- 7) Plot Maps over 12 months for a specific year (and one month map with basemap) OPTIONNAL
- 8) Elevation map OPTIONNAL
Reanalysis ERA5-Land HOURLY data (from 1950 to present)
Download, Mapping, daily/monthly aggregation and time serie extraction (from Copernicus “Climate Data Store”)
HOURLY Precipitations, temperature, evaporation, runoff and other parameters.
author: Loïc Duffar https://github.com/loicduffar
How to PROCEED ?
Run cells in order :
- 1) Data download (Download volume is limited by the server: you will have to adapt number of variables, the périod of time and the area and/or to split the request in several files)
- 1bis) Edit and run the 2nd cell, instead of the 1rst one IF the ERA5 file is already downloaded
- 2) Customization, initialization and display netCDF file infos
- 3) Plot maps by hour/day/month and interannual average
- 4) Plot and export dailly time serie for one pixel and for a possible polygon
- 5) Animation maps by month, day and hour (OPTIONNAL)
- 5bis) Animation maps by day and hour OVER A SELECTED PERIOD OF TIME. (OPTIONNAL: Use this cell instead of the one above if the navigation through the hourly data is difficult because of a file covering a very long duration; 10 years for example).
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