Overview

The Arctic oscillation (AO) or Northern Annular Mode/Northern Hemisphere Annular Mode (NAM) is an index of the dominant pattern of non-seasonal sea-level pressure variations north of 20N latitude. Montly values are availible at http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/monthly.ao.index.b50.current.ascii.table . These values can be imported from a local file or directly from the website.

For more information see: http://en.wikipedia.org/wiki/Arctic_oscillation

Configuration (Example)

ModuleConfigFiles

ImportAO.xml
<?xml version="1.0" encoding="UTF-8"?>
<timeSeriesImportRun xmlns="http://www.wldelft.nl/fews" xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance
 xsi:schemaLocation="http://www.wldelft.nl/fews http://fews.wldelft.nl/schemas/version1.0/timeSeriesImportRun.xsd">
	<import>
		<general>
			<importType>AoClimateIndex</importType>
			<serverUrl>http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/monthly.ao.index.b50.current.ascii.table </serverUrl>
			<idMapId>ImportAO</idMapId>
			<unitConversionsId>ImportUnitConversions</unitConversionsId>
			<missingValue>-99.99</missingValue>
			<importTimeZone>
				<timeZoneOffset>+00:00</timeZoneOffset>
			</importTimeZone>
		</general>
		<timeSeriesSet>
			<moduleInstanceId>ImportPDO</moduleInstanceId>
			<valueType>scalar</valueType>
			<parameterId>Index.AO</parameterId>
			<locationId>Climate_Index</locationId>
			<timeSeriesType>external historical</timeSeriesType>
			<timeStep unit="month"/>
			<readWriteMode>add originals</readWriteMode>
			<synchLevel>4</synchLevel>
			<expiryTime unit="year" multiplier="100"/>
		</timeSeriesSet>
	</import>
</timeSeriesImportRun>
ImportAO.xml (local file)
<?xml version="1.0" encoding="UTF-8"?>
<timeSeriesImportRun xmlns="http://www.wldelft.nl/fews" xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance
 xsi:schemaLocation="http://www.wldelft.nl/fews http://fews.wldelft.nl/schemas/version1.0/timeSeriesImportRun.xsd">
	<import>
		<general>
			<importType>AoClimateIndex</importType>
			<folder>$IMPORT_AO_FOLDER$</folder>
                        ...

IdMapFiles

MapIdAO.xml
<?xml version="1.0" encoding="UTF-8"?>
<idMap xmlns="http://www.wldelft.nl/fews" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.wldelft.nl/fews http://fews.wldelft.nl/schemas/version1.0/idMap.xsd" version="1.1">
	<map internalParameter="Index.AO" externalParameter="Index.AO" internalLocation="Climate_Index" externalLocation="Climate_Index"/>
</idMap>

The Climate_Index location is a placeholder since the index does not have different values for different locations.

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