Parameter and Interpolation type Relationship

The Interpolation type defines the method that is used for interpolating between observation points by describing how the points are connected. Applying the interpolation type definition enables the estimation of values between observation points. The choice of the correct interpolation type is dependant on the source of the data and the parameter being observed. Not all interpolation types are suitable for use with all parameter types, for example, the interpolation type PrecDir is not suitable for reporting rainfall total. The below table details the allowed parameter and interpolation type combinations.

Table - Parameter and Interpolation type Relationship
Parameter Unit Unit Name Interpolation type*
InstVal InstTot PrecVal PrecMax PrecMin PrecTot PrecDir SuccVal SuccTot NoJoin
AquiferRecharge_ML ML Megalitres X X X X
AquiferRecharge_MLd ML/d Megalitres/day X X X X
BatteryVoltage_V V Volts X X X X X X
DewpointTemperature_DegC Cel Degrees Celsius X X X X X X
DownwardLongwaveExposure_Jm2 J/m2 Joules per square metre X X X X X X
DownwardLongwaveExposure95PercUncertainty_Jm2 J/m2 Joules per square metre X X X X X X
DownwardLongwaveExposurePeriod_s s Seconds X X X X X X
DownwardLongwaveExposureSampleCount_Count {Count} Count X X X X X X
DownwardLongwaveIrradiance_Wm2 W/m2 Watts per square metre X X X X X X
DownwardLongwaveIrradiance95PercUncertainty_Wm2 W/m2 Watts per square metre X X X X X X
DownwardLongwaveIrradianceAverage_Wm2 W/m2 Watts per square metre X X X X X X
DownwardLongwaveIrradianceAveragePeriod_s s Seconds X X X X X X
DownwardLongwaveIrradianceSamplesAveraged_Count {Count} Count X X X X X X
DryAirTemperature_DegC Cel Degrees Celsius X X X X X X
ElectricalConductivityAt25C_uScm uS/cm MicroSiemens/cm X X X X X X
Evaporation_mm mm Millimetres X X X
GlobalSolarExposure_Jm2 J/m2 Joules per square metre X X X X X X
GlobalSolarExposure95PercUncertainty_Jm2 J/m2 Joules per square metre X X X X X X
GlobalSolarExposurePeriod_s s Seconds X X X X X X
GlobalSolarExposureSampleCount_Count {Count} Count X X X X X X
GlobalSolarIrradiance_Wm2 W/m2 Watts per square metre X X X X X X
GlobalSolarIrradiance95PercUncertainty_Wm2 W/m2 Watts per square metre X X X X X X
GlobalSolarIrradianceAverage_Wm2 W/m2 Watts per square metre X X X X X X
GlobalSolarIrradianceAveragePeriod_s s Seconds X X X X X X
GlobalSolarIrradianceSamplesAveraged_Count {Count} Count X X X X X X
GroundWaterLevel_m m Metres X X X X X X
GroundWaterPressure_Kpa kPa KiloPascal X X X X X X
NetExposure_Jm2 J/m2 Joules per square metre X X X X X X
NetExposure95PercUncertainty_Jm2 J/m2 Joules per square metre X X X X X X
NetExposureLengthSampleCount_Count {Count} Count X X X X X X
NetExposurePeriod_s s Seconds X X X X X X
NetIrradiance_Wm2 W/m2 Watts per square metre X X X X X X
NetIrradiance95PercUncertainty_Wm2 W/m2 Watts per square metre X X X X X X
NetIrradianceAverage_Wm2 W/m2 Watts per square metre X X X X X X
NetIrradianceAveragePeriod_s W/m2 Watts per square metre X X X X X X
NetIrradianceSamplesAveraged_Count {Count} Count X X X X X X
NitrogenConcentration_mgL mg/L Milligrams/litre X X X X X X
Rainfall_mm mm Millimetres X X X
ReflectedGlobalSolarExposure_Jm2 J/m2 Joules per square metre X X X X X X
ReflectedGlobalSolarExposure95PercUncertainty_Jm2 J/m2 Joules per square metre X X X X X X
ReflectedGlobalSolarExposurePeriod_s s Seconds X X X X X X
ReflectedGlobalSolarExposureSampleCount_Count {Count} Count X X X X X X
ReflectedGlobalSolarIrradiance_Wm2 W/m2 Watts per square metre X X X X X X
ReflectedGlobalSolarIrradiance95PercUncertainty_Wm2 W/m2 Watts per square metre X X X X X X
ReflectedGlobalSolarIrradianceAverage_Wm2 W/m2 Watts per square metre X X X X X X
ReflectedGlobalSolarIrradianceAveragePeriod_s s Seconds X X X X X X
ReflectedGlobalSolarIrradianceSamplesAveraged_Count {Count} Count X X X X X X
RelativeHumidity_Perc % Percentage X X X X X X
StorageInflow_ML ML Megalitres X X X
StorageInflow_MLd ML/d Megalitres/day X X X X X X
StorageLevel_m m Metres X X X X X X
StorageOutflow_ML ML Megalitres X X X
StorageOutflow_MLd ML/d Megalitres/day X X X X X X
StorageSurfaceArea_m2 m2 Metres squared X X X X X X
StorageTransfer_MLd ML/d Megalitres/day X X X X X X
StorageVolume_ML ML Megalitres X X X X X X
StorageVolume_Perc % Percentage X X X X X X
SuspendedSolids_mgL mg/L Milligrams/litre X X X X X X
TotalPhosphorus_mgL mg/L Milligrams/litre X X X X X X
Turbidity_NTU [NTU] Nephelometric Turbidity Units X X X X X X
UpwardLongwaveExposure_Jm2 J/m2 Joules per square metre X X X X X X
UpwardLongwaveExposure95PercUncertainty_Jm2 J/m2 Joules per square metre X X X X X X
UpwardLongwaveExposurePeriod_s s Seconds X X X X X X
UpwardLongwaveExposureSampleCount_Count {Count} Count X X X X X X
UpwardLongwaveIrradiance_Wm2 W/m2 Watts per square metre X X X X X X
UpwardLongwaveIrradiance95PercUncertainty_Wm2 W/m2 Watts per square metre X X X X X X
UpwardLongwaveIrradianceAverage_Wm2 W/m2 Watts per square metre X X X X X X
UpwardLongwaveIrradianceAveragePeriod_s s Seconds X X X X X X
VapourPressureDeficit_mbar mbar millibars X X X X X X
WaterCourseDischarge_m3s m3/s Cubic metres/second X X X X X X
WaterCourseDischarge_MLd ML/d Megalitres/day X X X X X X
WaterCourseDischarge_MLm ML/mo_c Megalitres/calendar month X X X X X X
WaterCourseLevel_m m Metres X X X X X X
WaterpH_pH [pH] pH X X X X X X
WaterTemperature_DegC Cel Degrees Celsius X X X X X X
WaterVolume_ML ML Megalitres X X
WetAirTemperature_DegC Cel Degrees Celsius X X X X X X
WindDirection_Deg deg Degrees X
WindRun_km km Kilometres X X
WindSpeed_ms m/s Metres/second X X X X X X

More on Interpolation Type ...

Table - Interpolation Type
Type Description
InstVal Instantaneous value in a series of connected points
InstTot Instantaneous total' e.g. - a total attributed to a specific point in time
PrecVal The value for the preceding interval's- often a mean value
PrecMax Maximum in the preceding interval
PrecMin Minimum in the preceding interval
PrecTot Total in the preceding interval
PrecDir Direction in preceding interval
SuccVal Value in the succeeding interval (often a mean value)
SuccTot Total in the succeeding interval
NoJoin A point that has no connection to neighbouring points

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