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        <gco:CharacterString>This dataset contains the seismic site-response zonation map for the Netherlands. The site-response (amplification) zonation map for the Netherlands is designed by transforming geological 3D grid cell models into five classes and an amplification factor (AF) is assigned to most of the classes. This site-response assessment, presented on a nationwide scale is important for a first identification of regions with increased seismic hazard potential, for example at locations with mining or geothermal energy activities.
The site-response zonation map enables a prediction of site-response after a local earthquake as recommended in the following. It is very important to note that lithological information from geological voxel models is based on spatial interpolation and aimed at interpretations on regional scale. As a consequence, the presented site-response zonation map is also designed for regional interpretation, and not on individual grid cell scale. Furthermore, at locations with large subsurface heterogeneity, the interpretation should be handled with care. Additional local investigations measurements should be performed at sites of interest in order to assess the site-response in detail. 
For the map presented, the uncertainties to keep in mind are: first, the AF distribution along the classes, and secondly the uncertainty of the geological model used. The AF is designed to be added to an input seismic signal at a reference horizon with a shear-wave velocity of 500 m/s. This AF is class-dependent and covering only frequencies of 1-10 Hz. Furthermore, the AF does not reflect the maximum amplification that might occur within a smaller frequency band. Moreover, in the country's southern regions, a topographic effect may influence the site-response. It is important to mention that for now these areas are aggregated in Class V and require additional detailed site investigations for site-response assessment.
 The AF and associated uncertainty per class are available from the NetCDF metadata.</gco:CharacterString>
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            <gmd:LocalisedCharacterString locale="#EN">This dataset contains the seismic site-response zonation map for the Netherlands. The site-response (amplification) zonation map for the Netherlands is designed by transforming geological 3D grid cell models into five classes and an amplification factor (AF) is assigned to most of the classes. This site-response assessment, presented on a nationwide scale is important for a first identification of regions with increased seismic hazard potential, for example at locations with mining or geothermal energy activities.
The site-response zonation map enables a prediction of site-response after a local earthquake as recommended in the following. It is very important to note that lithological information from geological voxel models is based on spatial interpolation and aimed at interpretations on regional scale. As a consequence, the presented site-response zonation map is also designed for regional interpretation, and not on individual grid cell scale. Furthermore, at locations with large subsurface heterogeneity, the interpretation should be handled with care. Additional local investigations measurements should be performed at sites of interest in order to assess the site-response in detail. 
For the map presented, the uncertainties to keep in mind are: first, the AF distribution along the classes, and secondly the uncertainty of the geological model used. The AF is designed to be added to an input seismic signal at a reference horizon with a shear-wave velocity of 500 m/s. This AF is class-dependent and covering only frequencies of 1-10 Hz. Furthermore, the AF does not reflect the maximum amplification that might occur within a smaller frequency band. Moreover, in the country's southern regions, a topographic effect may influence the site-response. It is important to mention that for now these areas are aggregated in Class V and require additional detailed site investigations for site-response assessment.
 The AF and associated uncertainty per class are available from the NetCDF metadata.</gmd:LocalisedCharacterString>
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            <gmd:LocalisedCharacterString locale="#DUT">Deze data set bevat de seismische amplificatie zonatiekaart voor Nederland. De zonatiekaart geeft de gebieden weer die betreft de ondiepe ondergrond samenstelling extra gevoelig zijn voor geïnduceerde aardbevingstrillingen. Amplificatie is hier gedefinieerd als opslingering van de grondbeweging ten opzichte van een referentielocatie. De kaart is gemaakt op basis van drie digitale geologische modellen (DGM, NL3D en GeoTOP, (ww.dinoloket.nl/subsurface-models), en omgezet in een amplificatie zonatie voor een 100m bij 100m grid. Een aantal klasses hebben een bijbehorende amplificatie factor (AF) met standaarddeviatie, en deze waardes zijn beschikbaar in de NetCDF metadata. 
Deze kaart geeft een voorspelling van het amplificatie effect in de ondiepe ondergrond bij een lokale geïnduceerde aardbeving. Voor het gebruik van de kaart zijn een aantal aanbevelingen van toepassing. Ten eerste, de digitale geologische modellen zijn gebaseerd op statische interpolaties, en daarom is het gebruik van de amplificatiekaart alleen geschikt voor regionale interpretaties en niet op gridcelniveau. Ten tweede, de AF-waardes zijn gebaseerd op een referentielocatie met S-golf snelheden van 500m/s. De AF is afhankelijk van de geldende amplificatie klasse per locatie, en voor geïnduceerde aardbevingstrillingen voor een frequentie van 1-10Hz. Deze AF-waardes zijn een gemiddelde, hogere AFs kunnen optreden bij een specifieke frequentie.  Tot slot, in klasse V zijn de gebieden samengevoegd waarin andere referentielocaties gelden. Voor deze klasse is geen AF bepaald, maar hier kan wel amplificatie optreden ten gevolge van een aardbeving.</gmd:LocalisedCharacterString>
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                <gco:Decimal>3.2</gco:Decimal>
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                <gco:Decimal>7.3</gco:Decimal>
              </gmd:eastBoundLongitude>
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                <gco:Decimal>50.7</gco:Decimal>
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            </gmd:EX_TemporalExtent>
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        </gmd:EX_Extent>
      </gmd:extent>
      <gmd:supplementalInformation xsi:type="gmd:PT_FreeText_PropertyType">
        <gco:CharacterString>The zonation map is based on digital geological models DGM, NL3D and GeoTOP: www.dinoloket.nl/subsurface-models) resampled to a regular grid (100m by 100m).</gco:CharacterString>
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            <gmd:LocalisedCharacterString locale="#EN">The zonation map is based on digital geological models DGM, NL3D and GeoTOP: www.dinoloket.nl/subsurface-models) resampled to a regular grid (100m by 100m).</gmd:LocalisedCharacterString>
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            <gmd:LocalisedCharacterString locale="#DUT">De kaart is gemaakt op basis van digitale geologische modellen DGM, NL3D en GeoTOP, (ww.dinoloket.nl/subsurface-models)</gmd:LocalisedCharacterString>
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    </gmd:MD_DataIdentification>
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      </gmd:distributionFormat>
      <gmd:distributor>
        <gmd:MD_Distributor>
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            <gmd:CI_ResponsibleParty>
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                <gco:CharacterString>Koninklijk Nederlands Meteorologisch Instituut (KNMI)</gco:CharacterString>
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                    <gmd:LocalisedCharacterString locale="#EN">Koninklijk Nederlands Meteorologisch Instituut (KNMI)</gmd:LocalisedCharacterString>
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                        <gmd:PT_FreeText>
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                            <gmd:LocalisedCharacterString locale="#EN">opendata@knmi.nl</gmd:LocalisedCharacterString>
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                <gmd:CI_RoleCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact" />
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            </gmd:CI_ResponsibleParty>
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        </gmd:MD_Distributor>
      </gmd:distributor>
      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:transferSize>
            <gco:Real>37.0</gco:Real>
          </gmd:transferSize>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=seismic_site_response_zonation_map&amp;x-dataset-version=1.0</gmd:URL>
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        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
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  </gmd:distributionInfo>
  <gmd:dataQualityInfo xmlns:gmx="http://schemas.opengis.net/iso/19139/20060504/gmx/gmx.xsd">
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
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            <gmd:MD_ScopeCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset" />
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      <gmd:lineage>
        <gmd:LI_Lineage>
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            <gco:CharacterString>The map is made on basis of three digital geological models (DGM, NL3D en GeoTOP, (ww.dinoloket.nl/subsurface-models), and turned into an amplification zonation for a 100m by 100m grid. A few classes have a associated amplification factor (AF) with a standard deviation. These values are available inside the NetCDF metadata.</gco:CharacterString>
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                <gmd:LocalisedCharacterString locale="#EN">The map is made on basis of three digital geological models (DGM, NL3D en GeoTOP, (ww.dinoloket.nl/subsurface-models), and turned into an amplification zonation for a 100m by 100m grid. A few classes have a associated amplification factor (AF) with a standard deviation. These values are available inside the NetCDF metadata.</gmd:LocalisedCharacterString>
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              <gmd:textGroup>
                <gmd:LocalisedCharacterString locale="#DUT">De kaart is gemaakt op basis van drie digitale geologische modellen (DGM, NL3D en GeoTOP, (ww.dinoloket.nl/subsurface-models), en omgezet in een amplificatie zonatie voor een 100m bij 100m grid. Een aantal klasses hebben een bijbehorende amplificatie factor (AF) met standaarddeviatie, en deze waardes zijn beschikbaar in de NetCDF metadata.</gmd:LocalisedCharacterString>
              </gmd:textGroup>
            </gmd:PT_FreeText>
          </gmd:statement>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>

