# Dictionnary with equivalence beetween names in the API requests and the name of the colums in the downoaded data set

**URL:** <https://forum.ecmwf.int/t/dictionnary-with-equivalence-beetween-names-in-the-api-requests-and-the-name-of-the-colums-in-the-downoaded-data-set/14856>\
**Category:** C3S - Datasets and Usage\
**Tags:** era5-land\
**Created:** [13 April 2026 13:42 UTC](https://forum.ecmwf.int/t/dictionnary-with-equivalence-beetween-names-in-the-api-requests-and-the-name-of-the-colums-in-the-downoaded-data-set/14856 "2026-04-13T13:42:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Thibaut\_Eloy](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/t/8edcca/32.png) [@Thibaut\_Eloy](https://forum.ecmwf.int/u/Thibaut_Eloy)\
**Post date:** [13 April 2026 13:42 UTC](https://forum.ecmwf.int/t/dictionnary-with-equivalence-beetween-names-in-the-api-requests-and-the-name-of-the-colums-in-the-downoaded-data-set/14856/1 "2026-04-13T13:42:33Z")

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Hi,

I am making API requests to the ERA5-Land time series dataset, but I noticed that the variable names required for the API request differ from the column names in the downloaded dataset. For example, `soil_temperature_level_1`, used as a variable name in the API request, becomes `stl1` in the downloaded dataset.

This is an issue for me because I would like to automate the process as much as possible, so I need a way to map these variable names. Is there a Python dictionary or any resource that provides these correspondences?

I have started defining my own dictionary in my code (e.g., `{'soil_temperature_level_1': 'stl1'}`), but it would be quite time-consuming to download all variables and manually fill in the rest.

Thank you for your help.

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**Author:** ![Kevin\_Marsh](https://forum.ecmwf.int/user_avatar/forum.ecmwf.int/kevin_marsh/32/368_2.png) [@Kevin\_Marsh](https://forum.ecmwf.int/u/Kevin_Marsh)\
**Post date:** [13 April 2026 13:45 UTC](https://forum.ecmwf.int/t/dictionnary-with-equivalence-beetween-names-in-the-api-requests-and-the-name-of-the-colums-in-the-downoaded-data-set/14856/2 "2026-04-13T13:45:07Z")

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Hi, This information is in the documentation pages:

# [ERA5-Land: data documentation](https://confluence.ecmwf.int/display/CKB/ERA5-Land%3A+data+documentation)

-see the tables under “Parameter Listings”, HTH!

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<div class="post-metadata">

**Author:** ![Thibaut\_Eloy](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/t/8edcca/32.png) [@Thibaut\_Eloy](https://forum.ecmwf.int/u/Thibaut_Eloy)\
**Post date:** [13 April 2026 13:45 UTC](https://forum.ecmwf.int/t/dictionnary-with-equivalence-beetween-names-in-the-api-requests-and-the-name-of-the-colums-in-the-downoaded-data-set/14856/3 "2026-04-13T13:45:53Z")

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Thank you very much for you quick response