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Imports time series data with observed daily rainfall from the KNMI that is delivered to the Dutch waterboards. The files are in CSV format with file extension (*.dat) the next definition in the file:
<location ID>, <location name>, <X in km>, <Y in km>, <date in YYYYMMDD>, <value in 0.1 mm>. See the example file and the KNMI site.
Notice that the rainfall is measured at 08:00 METUT (=GMT), but this time is not written in the file. So Therefore the time will be read bij the FEWS import reader as 00:00 hours. The rainfall is supplied as an accumulative time series over the last 24 hours. This requires the time step in FEWS to be configured as
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<timeStep unit="day" multiplier="1" timeZone="GMT-78"/> |
More information on the KNMI rainfall data sets can be found on the KNMI website
Configuration (Example)
A complete import module configuration consists of an ID Mapping file and a Import Module Instance file. To convert the rainfall in a proper unit (from 0.1 mm/day to mm/day for example) it is also required to configure a Unit Conversion file.
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The following example of an Import Module Instance will import the time series as equidistant series for timezone GMT with a time step of 6 24 hours.
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<?xml version="1.0" encoding="UTF-8"?> <timeSeriesImportRun ......"> <?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> <!--IRIS (24h)--> <general> <importType>KNMIIRIS</importType> <folder>$IMPORT_FOLDER_KNMI_IRIS$</folder> <failedFolder>$IMPORT_FAILED_FOLDER_KNMI_IRIS$</failedFolder> <backupFolder>$IMPORT_BACKUP_FOLDER_KNMI_IRIS$</backupFolder> <idMapId>IdImportIRIS</idMapId> <unitConversionsId>ImportKNMIUnits</unitConversionsId> <!--data is supplied at 08:00 METGMT, but in the file this time is not mentioned, so read as 00:00 hrs. so the time zone offset (to GMT) should be -78 hrs--> <importTimeZone> <timeZoneOffset>-0708:00</timeZoneOffset> </importTimeZone> <dataFeedId>KNMI-IRIS</dataFeedId> </general> <timeSeriesSet> <moduleInstanceId>ImportKNMI</moduleInstanceId> <valueType>scalar</valueType> <parameterId>P.meting</parameterId> <locationSetId>KNMI-IRIS</locationSetId> <timeSeriesType>external historical</timeSeriesType> <timeStep unit="day" multiplier="1" timeZone="GMT-78"/> <readWriteMode>add originals</readWriteMode> <synchLevel>1</synchLevel> </timeSeriesSet> <!--to let the import module know that the KNMI rainfall is an accumulative timeseries in 0.1 mm/d that should be converted to for example mm/d--> <externUnit parameterId="P.meting" unit="0.1 mm/d"/> </import> </timeSeriesImportRun> |
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<idMap version="1.1" ..............>
<map internalParameter="P.meting" internalLocation="KNMI_827" externalParameter="827" externalLocation="827"/>
<map internalParameter="P.meting" internalLocation="KNMI_831" externalParameter="831" externalLocation="831"/>
<map internalParameter="P.meting" internalLocation="KNMI_896" externalParameter="896" externalLocation="896"/>
<map internalParameter="P.meting" internalLocation="KNMI_902" externalParameter="902" externalLocation="902"/>
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</idMap>
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<?xml version="1.0" encoding="UTF-8"?>
<unitConversions ...................>
<unitConversion>
<inputUnitType>0.1 mm/d</inputUnitType>
<outputUnitType>mm/d</outputUnitType>
<multiplier>0.1</multiplier>
<incrementer>0</incrementer>
</unitConversion> ........
........
</unitConversions>
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Example file
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Defines the conversion of the units that should be appliedAn example of a csv-file from IRIS to be imported using the KNMI-IRIS import Module. |
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10,HOLLUM , 172, 605,20071028, 0
11,WEST TERSCHELLING , 144, 598,20071028, 0
16,PETTEN , 106, 531,20071028, 0
17,DEN BURG , 116, 563,20071028, 1
18,NES (AMELAND) , 181, 607,20071028, 0
19,DE COCKSDORP , 121, 575,20071028, 2
21,CALLANTSOOG , 109, 541,20071028, 0
26,FORMERUM , 149, 601,20071028, 1
64,SNEEK , 172, 561,20071028, 0
65,MAKKUM , 156, 564,20071028, 1
67,DOKKUM , 195, 593,20071028, 0
69,APPELSCHA , 219, 553,20071028, 0
73,DRACHTEN , 203, 570,20071028, 0
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Example Files
See attached files