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Weather data |
|
| Package version | |
| Description | Script for the download of MERRA-2 weather data |
| Notes | Weather data differ significantly from the other data types used resp. provided by OPSD in that the sheer size of the data packages greatly exceeds OPSD's capacity to host them in a similar way as feed-in timeseries, power plant data etc. While the other data packages also offer a complete one-klick download of the bundled data packages with all relevant data this is impossible for weather datasets like MERRA-2 due to their size (variety of variables, very long timespan, huge geographical coverage etc.). It would make no sense to mirror the data from the NASA servers. Instead we choose to provide a documented methodological script (as a kind of tutorial). The method describes one way to automatically obtain the desired weather data from the MERRA-2 database and simplifies resp. unifies alternative manual data obtaining methods in a single script. It is recommended to study the the "Step-by-step user guide" (developer use case) on this platform to learn how to run the script. The data package contains a sample dataset for Germany and the year 2016 |
| Last changes | corrected typos, slight modifications (file names) |
| Geographical scope | Worldwide (German sample dataset for 2016) |
| Documentation | Documentation and script (view on GitHub) |
| Download |
Data package (zip) opsd-weather_data-2017-07-05.zip (75 MB) Individual data files (csv, xlsx) weather_data_GER_2016.csv (302 MB) Database (SQLite) weather_data.sqlite (281 MB) |
| Meta data |
README.md datapackage.json |
| Input data | Not provided |
| Sources | MERRA-2 |
| Report issue | Report an issue on Github |
| Contact | Martin Jahn | Jan Urbansky |
| Subscribe | Get notified by email for updates |
| Attribution in Chicago author-date style should be given as follows: "Open Power System Data. 2017. Data Package Weather data. Version 2017-07-05. https://data.open-power-system-data.org/weather_data/2017-07-05/. (Primary data from various sources, for a complete list see URL)." | |
Field documentation
weather data GER 2016.csv
| Field Name | Type (Format) | Description |
|---|---|---|
| timestamp | date-time (YYYY-MM-DDTHH:MM:SSZ) | Start of timeperiod in Coordinated Universal Time |
| cumulated hours | number (integer) | summarized number of hours for the timeperiod of the dataset |
| lat | geopoint (lat) | Latitude coordinates |
| lon | geopoint (lon) | Longitude coordinates |
| v1 | number (float) | wind speed 2 meters above displacement height |
| v2 | number (float) | wind speed 10 meters above displacement height |
| v_50m | number (float) | wind speed 50 meters above ground |
| h1 | number (float) | height above ground corresponding to v1 |
| h2 | number (integer) | height above ground corresponding to v2 |
| z0 | number (integer) | roughness length |
| SWTDN | number (float) | total top-of-the-atmosphere horizontal radiation |
| SWGDN | number (float) | total ground horizontal radiation |
| T | number (float) | Temperature 2 meters above displacement height |
| rho | number (float) | air density at surface |
| p | number (float) | air pressure at surface |