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Vaisala Radiosonde RS41
A balloon is released from the ground and rises to 10-30km to measure temperature, pressure, humidity and wind data. Vaisala MW41 sounding software is a radiosounding data...- 
                      
                        Data format:
                        
                            SPF
                        
                            MWX
                        
                            BFR
                        
                        License:
                            CC-BY-4.0
                        
                        APIs:
                            Open Data API
                            Notification Service
                      
                        
                    
                  
                
 
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Meteo data - daily quality controlled climate data KNMI, the Netherlands
KNMI operates automatic weather stations on land (incl. airports). These weather stations measures meteorological parameters such as temperature, precipitation, wind, air...- 
                      
                        Data format:
                        
                            NetCDF
                        
                        License:
                            CC-BY-4.0
                        
                        APIs:
                            Open Data API
                            Notification Service