Station latitude
Station longitude
Station altitude
Measurement latitude
Measurement longitude
Measurement altitude
Measurement height

Syntax:

Station latitude: <latitude (decimal)>
Station longitude: <longitude (decimal)>
Station altitude: <station altitude ASL> m
Measurement latitude: <latitude (decimal)>
Measurement longitude: <longitude (decimal)>
Measurement altitude: <measurement altitude ASL> m

Measurement height: <measurement height AGL> m

Examples:

Station latitude:          58.380
Station longitude:         8.250
Station altitude:          220.0 m
Measurement latitude:      58.412
Measurement longitude:     8.253
Measurement altitude:      214.0 m

Measurement height:          2.0 m

General concept regarding regarding Station vs. Measurement position: The station is represented by one point (often at the center of the station area or at the main building). If the station covers a big area and it seams reasonable to specify the position and altitude of the instrument more precisely, a measurement position ("Measurement latitude", "Measurement longitude", "Measurement altitude") can be added. For most measurements this is not necessary. However "Measurement height" is an important metadata element for most measurements.

Station latitude is the latitude of the point representing the station.

Station longitude is the longitude of the point representing the station.

Station altitude is the altitude of the ground level at the station, relative to mean sea level.

Measurement latitude is the latitude of the point of measurement (instrument position). This is only needed if  the station covers a big area and it seams reasonable to specify the position of the instrument more precisely (as the point representing the station).

Measurement longitude is the longitude of the point of measurement (instrument position). This is only needed if  the station covers a big area and it seams reasonable to specify the position of the instrument more precisely (as the point representing the station).

Measurement altitude refers to the altitude of ground level at the position of the instrument, relative to mean sea level. This is only needed if  the station is at sloped terrain and it seams reasonable to specify the altitude of the instrument more precisely (as the point representing the station).

Measurement height is the height above the ground of the inlet/instrument/sampler.

This service has been funded or supported by the Norwegian Institute for Air Research (NILU), the EU research infrastructure ACTRIS (Aerosols, Clouds, and Trace gases Research InfraStructure), the European Monitoring and Evaluation Programme (EMEP).   