APIs for recent historical weather data

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Cord Kaldemeyer

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May 19, 2021, 10:10:49 AMMay 19
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Hi everybody,

 

does anybody know services that provide recent historical weather data?

Practical example: I want to obtain the wind speed for a certain point in Germany in 100 m altitude for the day/week before in (quarter-)hourly resolution.

 

The service windy.com provides something like this but only for forecasts: https://api.windy.com/point-forecast

An alternative could be openweathermap: https://openweathermap.org/price

 

But both are commercial services and I am looking for alternatives. Any hints?

 

Best wishes and thanks in advance,
Cord

 

Cord Kaldemeyer

Data Scientist

 

ARGE Netz GmbH & Co. KG

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Madalsa Singh

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May 19, 2021, 12:58:28 PMMay 19
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Hi, 

You can use NOAA's Integrated Surface Database for hourly data. It has data for almost 507 stations in Germany and 73 of them have historical timeseries until 2019. 
More info about ISD and variables it documents : https://www.ncei.noaa.gov/data/global-hourly/doc/isd-format-document.pdf
Station level information can be extracted using : https://www.ncdc.noaa.gov/homr/
If there's interest in the community for easy station level data parsing and imputation (from the closest station and/or previous day time of day value), I can push my code for scraping it. Let me know.

Madalsa

Jack Kelly

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May 19, 2021, 2:53:18 PMMay 19
to Madalsa Singh, openmod initiative
If you want data for a specific geographical location, and if that geographical location doesn't happen to have a weather station nearby (which will be true for all locations 100 m above the surface!) then you probably want either a "reanalysis dataset" (like ERA5); or take time=0 from numerical weather predictions (t=0 NWPs and reanalysis datasets aren't exactly equivalent). NOAA's Global Forecast System NWP is freely available.  Oikolab provides API access to NWPs, from 1950.

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nico....@gmail.com

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May 20, 2021, 3:22:18 AMMay 20
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In the Netherlands the Royal Netherlands Meteorological Institute (KNMI) provides a multitude of weather information: https://dataplatform.knmi.nl/dataset/?groups=wind
Maybe Deutscher Wetterdienst can help you out?

Shameless plug: at my employer Alliander (DSO) we recently open-sourced a project to expose various weather information in a uniform format for application to use it:
If you're looking to get the data for your use-case in a production-ready solution, this might be interesting to you. Feel free to reach out to the team of the Weather Provider API with questions.

Best,
Nico Rikken

David Brayshaw

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May 20, 2021, 5:20:39 AMMay 20
to nico....@gmail.com, openmod initiative

Dear Cord et al,

 

Is worth a look at the COPERNICUS data store (+its associated API):

 

https://cds.climate.copernicus.eu/#!/home

 

This should help access many different forms of climate data (inc models, forecasts, reanalyses etc).  In terms of your specific request, it may not help much with sub-hourly data but be able to assist with hourly (e.g., via ERA5).

 

Best wishes,

 

David

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Geschäftsführung: Stephan Frense (CEO), Henning Holst

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Robbie Morrison

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May 20, 2021, 6:30:10 AMMay 20
to openmod-i...@googlegroups.com, Carsten Hoyer-Klick (DLR)

Hello all, hello Carsten (in direct cc)

To add that the Open Energy Ontology covers weather data:

In particular:

  • the use‑case at § 8.3 (p 11,12): data annotation of an energy meteorological time series data set
  • figure 4 (below also) covers time series annotation: is the value instantaneous, averaged, or integrated? if it is a point‑in‑time reading, is the temporal alignment start, mid, or end of span? which timezone is used and if local, is daylight saving applied or not?
[timeseries-attributes]

On re‑reading, it is not clear, to me at least, what "average" means precisely in the articulated use‑case: the arithmetic mean of the the start and end instantaneous values or a synonym for "integrated" or with some nonlinear weighting function applied or some kind of rolling average or some other kind of mean or something else?  (I guess I could look on GitHub but the text needs to be clear too.)

Note that the OEO does not import a specialist parent ontology to cover weather information (as it does for financial concepts and for scientific units, for instance).

with best wishes, Robbie

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Robbie Morrison

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May 20, 2021, 6:52:18 AMMay 20
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To continue, could also be related to intensive and extensive quantities, the former averaged and the latter integrated .. desperately confused, R

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