A quantity that is measured, computed, or derived (e.g. - temperature, precipitation amount, etc.)

The type of data values - e.g. grid (interpolated or computed gridpoints), platform observation (in-situ or remotely sensed measurements, etc.

The time distance between discrete observation measurements, model product valid times, etc. A time resolution of "Hourly to < Daily" means data that occurs more often than once per day but no more often than once per hour.

The entity that acquired or computed the data (e.g. - aircraft, land station, reanalysis model)

The horizontal distance between discrete gridpoints, stations, measurements, etc.

Topic and subtopic are high-level groupings of parameters (e.g. - Atmosphere (topic), Clouds (subtopic of Atmosphere) ).

The scientific project or experiment that acquired the data

Data that were acquired to support a project/experiment (e.g. - GATE) or that can be used as ingest for a project (e.g. - WRF)

The structure of the bitstream used to encapsulate the data values in a record or file (e.g - ASCII, netCDF, etc.)

The name of the location or region for which the data are valid