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Overview

This import is available in DELFT-FEWS versions after 28-10-2009 (FEWS version 2009.02)

Imports grid time series data from NetCDF files which comply to the CF standard. More information about the cf standards can be found at: http://cf-pcmdi.llnl.gov/conformance/requirements-and-recommendations/1.4

See also the following two other types of NetCDF-CF imports that are available:

In DELFT-FEWS versions 2011.02 and later this import type can also be used to import data using OPeNDAP, see Import data using OPeNDAP.

Import Configuration

An example of the NETCDF-CF_GRID import will be given here.

ImportNetcdf_Grid 1.00 default.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>NETCDF-CF_GRID</importType>
			<folder>$IMPORT_FOLDER$/NETCDF</folder>
			<failedFolder>$IMPORT_FAILED_FOLDER$</failedFolder>
			<backupFolder>$IMPORT_BACKUP_FOLDER$</backupFolder>
			<idMapId>IdImportNetCDF</idMapId>
			<unitConversionsId>ImportUnitConversions</unitConversionsId>
		</general>
		<timeSeriesSet>
			<moduleInstanceId>ImportNetcdf_Grid</moduleInstanceId>
			<valueType>grid</valueType>
			<parameterId>Snelheid.u.F0</parameterId>
			<locationId>hmcn_zeedelta</locationId>
			<timeSeriesType>external forecasting</timeSeriesType>
			<timeStep unit="minute" multiplier="30"/>
			<readWriteMode>add originals</readWriteMode>
			<synchLevel>6</synchLevel>
		</timeSeriesSet>
	</import>
</timeSeriesImportRun>

Id Map Configuration

An example of the IdMapping used for the NETCDF-CF_GRID import is shown below.

IdImportNetCDF 1.00 default.xml
<idMap version="1.1" 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">
	<map internalParameter="Snelheid.u.F0" internalLocation="hmcn_zeedelta" externalParameter="velocity" externalLocation="hmcn_zeedelta"/>
</idMap>

Grids Configuration

When importing grids in the FEWS database it may be required to configure the grid characteristics in the grids.XML file. The grid characteristics must be similar to the grid imported from the NetCDF file.

Grids 1.00 default.xml
	<regular locationId="hmcn_zeedelta">
		<description>HMCN Zeedelta Model</description>
		<rows>101</rows>
		<columns>101</columns>
		<geoDatum>Rijks Driehoekstelsel</geoDatum>
		<firstCellCenter>
			<x>54000</x>
			<y>449000</y>
		</firstCellCenter>
		<xCellSize>130</xCellSize>
		<yCellSize>70</yCellSize>
	</regular>
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