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Configuration guide for an IDMA display

An IDMA display shows the difference between accumulated values of an observed time series and average accumulation of a number of time series from a base group. If the observed time series has missing values, values from an estimated time series can be used.

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	<timeSeriesModifier id="IDMATest" name="IDMATest">
		<timeSeries>
			<moduleInstanceId>Calb_PreProcessing_PXPP</moduleInstanceId>
			<valueType>scalar</valueType>
			<parameterId>PP_Month</parameterId>
			<qualifierId>merged</qualifierId>
			<qualifierId>pxpp_pp24</qualifierId>
			<locationSetId>NERFC_Calb_Preproc_Gages_pcpn_pp24</locationSetId>
			<timeSeriesType>simulated historical</timeSeriesType>
			<timeStep unit="month"/>
		</timeSeries>
		<defaultStartTime>start run</defaultStartTime>
		<defaultEndTime>end run</defaultEndTime>
		<defaultValidTime/>
		<resolveInWorkflow>true</resolveInWorkflow>
		<resolveInPlots>false</resolveInPlots>
	</timeSeriesModifier>

IDMA display example

Example 4 shows an IDMA display. The blue, green, and red lines each correspond to accumulation differences for three different time series from three different locations, namely: ALCOVE DAM, ALBANT INTL AP, and ALBANY NVVFO UNIV. The blue line is thicker than the rest because it corresponds to the location (ALCOVE DAM) which is selected in the location drop down. The white dots show calculations with estimated values, wherever observation values were not available.

Example 4: an IDMA display

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Applying modifiers

As the display in Example 4 shows, the slop of the accumulated differences changes at different places. Therefore it is possible to apply a modifier wherever a slop change is observed to make corrections. To 

it is possible to apply a modifier for a selected period with an start and end time. The start and end points are shown with yellow markers. Example 5 shows the display after a modifier was applied.

Example 4: an IDMA display

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Example 5: an IDMA display, where a modifier is applied

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