what the example data looks like

[lwq-star]

Hello,

i'm trying to use agera5 as a weather data input to the model! A few days ago I downloaded agera5 from the research area using the python package cdsapi. But I found out today that you have already developed one of these packages!

In your example you seem to be working on data that has already been downloaded locally, but I don't know what the example data looks like, can you please provide the example data?

And I would like to do an area-by-image simulation, how can this agera5tools package help me?

Thank you very much for taking your valuable time to develop such a python package and a python implementation of the WOFOST model, they have helped me a lot!

[ajwdewit]

Hi, the agera5tools package indeed expects a certain structure that looks like below with all data in daily netCDF files.

Al files have the following naming convention:

Temperature-Air-2m-Max-Day-Time_C3S-glob-agric_AgERA5_19791228_final-v1.0.nc
{-----variable name ----------}_C3S-glob-agric_AgERA5_{-date-}_final-v1.0.nc

I am still thinking of extending agera5tools with a download option that automatically puts the data in this structure, but so far I have not found the time to do so.

Allard

├── 1979 │   ├── Cloud-Cover-Mean │   ├── Dew-Point-Temperature-2m-Mean │   ├── Precipitation-Flux │   ├── Precipitation-Rain-Duration-Fraction │   ├── Precipitation-Solid-Duration-Fraction │   ├── Relative-Humidity-2m-06h │   ├── Relative-Humidity-2m-09h │   ├── Relative-Humidity-2m-12h │   ├── Relative-Humidity-2m-15h │   ├── Relative-Humidity-2m-18h │   ├── Snow-Thickness-LWE-Mean │   ├── Snow-Thickness-Mean │   ├── Solar-Radiation-Flux │   ├── Temperature-Air-2m-Max-24h │   ├── Temperature-Air-2m-Max-Day-Time │   ├── Temperature-Air-2m-Mean-24h │   ├── Temperature-Air-2m-Mean-Day-Time │   ├── Temperature-Air-2m-Mean-Night-Time │   ├── Temperature-Air-2m-Min-24h │   ├── Temperature-Air-2m-Min-Night-Time │   ├── Vapour-Pressure-Mean │   └── Wind-Speed-10m-Mean ├── 1980 │   ├── Cloud-Cover-Mean │   ├── Dew-Point-Temperature-2m-Mean │   ├── Precipitation-Flux

[lwq-star]

Thank you and I look forward to your expansion! I would like to offer you two examples here https://github.com/paperoses/WOFOST_weather_file_generation/blob/main/AgERA5_download_for_WOFOST.py https://github.com/Ewan82/ghana_data/blob/master/data_downloaders/era_downloader.py Hope you find this helpful！

[lwq-star]

Excuse me,

I have one more question, I have turned on the default global elevation data(grid_elevation_landfraction.nc), its spatial resolution is 0.1 degrees, but I do not know what data it comes from? Is the accuracy high? Can you briefly explain this?

[ajwdewit]

I will have to foreward your question to the colleague who developed it. But because of holidays this will take some time.

Allard

lwq-star @.***> schreef op 23 juli 2022 15:15:48 CEST:

Excuse me,

I have one more question, I have turned on the default global elevation data(grid_elevation_landfraction.nc), its spatial resolution is 0.1 degrees, but I do not know what data it comes from? Is the accuracy high? Can you briefly explain this?

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[ajwdewit]

Is the question on the elevation grid still relevant?

Allard