NovaStar Data / Equations
Introduction
Equations use input values to compute an output value.
Equations in NovaStar
Equations are used in NovaStar to compute point data values from other point data. Examples of equations are:
- compute potential evapotranspiration from weather data
- compute basin average from station data
Data web services allows data from equations to be queried. The data are treated similar to other point data. It is possible to determine that a point's data results from an equation by checking the equation definitions.
Because the terms in an equation may not line up exactly with data timestamp, equations rely on the "no report interval" carry forward behavior to provide input values. This means that the last value reported is assumed to be valid during the no report interval for a point. This approach is taken because NovaStar is an even-driven data collection system.
Services
The following services are related to equations:
- equations - returns equations