| Interface | Description | 
|---|---|
| NamedStation | 
 Interface for a landmark with name, id, lat, lon, altitude
 (height above msl); and a hash table of "properties". 
 | 
| Quantity | 
 Abstraction for physical quantity. 
 | 
| Station | 
 Abstraction for a named reporting location. 
 | 
| StationTable | 
 Abstraction for (read-only) table of (Fixed) Stations. 
 | 
| Value | 
 Abstraction for the value a measured or calculated physical
 quantity. 
 | 
| Class | Description | 
|---|---|
| Ensemble | |
| Metar | 
 Abstraction for surface observations. 
 | 
| NamedStationImpl | 
 A class to hold named location information, for a
 landmark, city, observation point or station, data point, etc. 
 | 
| NamedStationTable | 
 Station table that holds a set of NamedStations 
 | 
| QuantityDB | 
 Class for supporting a data base of  
Quantitys. | 
| StationOb | 
 A 'raw' observation which occured at a Station at
 a given time. 
 | 
| StationTableImpl | 
 Table of reporting stations. 
 | 
| ValueFactory | 
 A factory for creating  
Values. | 
| WMOHeader | 
 This class enscapsulates an WMO "Abbreviated heading", the
 string used as an identifer on WMO format messages. 
 |