Obtaining metadata about specific data sets

Hi there,

together with @wetterfrosch, we are also looking forward to bring metadata about different datasets into this program. The best way to do that would be by directly ingesting resources available on the DWD CDC server or elsewhere from the content published by DWD. Hereby, I wanted to start collecting some resources.

Weather observations

1. Field names and descriptions (German) as XLSX.

https://opendata.dwd.de/climate_environment/CDC/help/Abkuerzung_Spaltenname_CDC_20180914.xlsx

2. Field names and descriptions per data set (English and German) as PDF.

Field names per data set are available within the respective folder within the "Parameters" section of corresponding PDF files, for example see data set description for recent daily station observations. Within dwd_description_pdf.py, I've tried to get some Python together to parse these PDF files and it seems to work reasonably, e.g. for 10_minutes/air_temperature/recent:

+-------------+--------------------------------------------------------------------------+
| STATIONS_ID | station identification number                                            |
| MESS_DATUM  | measurement time yyyymmddhhmi                                            |
| QN          | quality level of next columns coding see paragraph "Quality information" |
| PP_10       | pressure at station height hPa                                           |
| TT_10       | air temperature at 2m height                                             |
| TM5_10      | air temperature at 5cm height                                            |
| RF_10       | relative humidity at 2m height                                           |
| TD_10       | dew point temperature at 2m height                                       |
+-------------+--------------------------------------------------------------------------+

MOSMIX forecasts

Within https://github.com/earthobservations/wetterdienst/issues/70#issuecomment-653690214, I've collected some resources which describe fields available for MOSMIX.

With kind regards, Andreas.

earthobservations / wetterdienst