From MapTiler Team
Geodetic CRS: NAD27
Datum: North American Datum 1927
Ellipsoid: Clarke 1866
Prime meridian: Greenwich
Data source: OGP
Information source: National Geodetic Survey, www.ngs.noaa.gov
Revision date: 2019-09-17
Scope: Spatial referencing.
Remarks: Uses NADCON5 method which expects longitudes positive east in range 0-360°; source and target CRSs have longitudes positive east in range -180° to +180°. Accuracy at 67% confidence level is 0.5m onshore, 5m nearshore and undetermined farther offshore.
Method: NADCON5 (2D)
Area of use: United States (USA) - Alaska.
Description: nadcon5.nad27.nad83_1986.alaska.lat.trn.20160901.b
&stroke=red&width=2&path=51.3,172.42|71.4,172.42|71.4,-129.99|51.3,-129.99|51.3,172.42)
Definition: OGP XML
<?xml version="1.0" encoding="UTF-8"?>
<gml:Transformation xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="iogp-op-8549">
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<epsg:alias alias="675" code="8986" codeSpace="urn:ogc:def:naming-system:EPSG::1046" />
<epsg:alias alias="NAD27 to NAD 83 (1986) [USA v2]" code="8987" codeSpace="urn:ogc:def:naming-system:EPSG::1047" />
<epsg:informationSource>National Geodetic Survey, www.ngs.noaa.gov</epsg:informationSource>
<epsg:revisionDate>2019-09-17</epsg:revisionDate>
<epsg:changes>
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2018.017" />
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2019.035" />
</epsg:changes>
<epsg:show>true</epsg:show>
<epsg:isDeprecated>false</epsg:isDeprecated>
</epsg:CommonMetaData>
</gml:metaDataProperty>
<gml:metaDataProperty>
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<epsg:variant>8</epsg:variant>
</epsg:CoordinateOperationMetaData>
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<gml:identifier codeSpace="IOGP">urn:ogc:def:coordinateOperation:EPSG::8549</gml:identifier>
<gml:name>NAD27 to NAD83 (8)</gml:name>
<gml:remarks>Uses NADCON5 method which expects longitudes positive east in range 0-360°; source and target CRSs have longitudes positive east in range -180° to +180°. Accuracy at 67% confidence level is 0.5m onshore, 5m nearshore and undetermined farther offshore.</gml:remarks>
<gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1330" />
<gml:scope>Spatial referencing.</gml:scope>
<gml:operationVersion>NGS-Usa AK Nadcon5</gml:operationVersion>
<gml:coordinateOperationAccuracy>
<gmd:DQ_RelativeInternalPositionalAccuracy>
<gmd:result>
<gmd:DQ_QuantitativeResult>
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</gmd:DQ_RelativeInternalPositionalAccuracy>
</gml:coordinateOperationAccuracy>
<gml:sourceCRS xlink:href="urn:ogc:def:crs:EPSG::4267" />
<gml:targetCRS xlink:href="urn:ogc:def:crs:EPSG::4269" />
<gml:method xlink:href="urn:ogc:def:method:EPSG::1074" />
<gml:parameterValue>
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<gml:parameterValue>
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<gml:valueFile>nadcon5.nad27.nad83_1986.alaska.lon.trn.20160901.b</gml:valueFile>
<gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8658" />
</gml:ParameterValue>
</gml:parameterValue>
</gml:Transformation>
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