ValueTypeCV Values


Used to populate the ValueType field in the Variables table

Calibration ValueA value used as part of the calibration of an instrument at a particular time.
Derived ValueData are the result of a mathematical transformation where there is some subjectivity in the selected equation form and/or where parameters are typically fitted. A rating curve relating stage to discharge is a transformation that fits this definition; therefore stage is observed but discharge is derived.
Estimated ValueValues that are roughly calculated, judged, or approximated. Values may result from professional judgement or from ancillary data.
Field ObservationData reflect the measurement the sensor is designed to make, reported at the frequency of data collection
Model Simulation ResultValues generated by a simulation model
SampleObservation that is the result of analyzing a sample in a laboratory
UnknownThe value type is unknown

This material is based upon work supported by the National Science Foundation (NSF) under Grant Nos. 04-12975, 041-3265, and 06-22374.
Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.