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310	<h1>The EPSG Geodetic Parameter Dataset</h1>
311	<p>&nbsp;</p>
312<table style="border-collapse: collapse; width: 100%; height: 868.576px;" width="100%">
313<tbody>
314<tr style="height: 363.54px;">
315<td style="width: 49.1071%; text-align: left; vertical-align: top; height: 363.54px;">
316<h2><span style="font-size: 18pt; color: #3598db;">The EPSG Dataset</span></h2>
317<p><span style="font-size: 10pt; font-family: arial, helvetica, sans-serif;">IOGP's <strong>EPSG Geodetic Parameter Dataset</strong> contains many definitions of coordinate reference systems (CRSs) and coordinate transformations (CTs) which can be global, regional, national, or local in application. The dataset is maintained by the Geodesy Subcommittee of the IOGP Geomatics Committee. It is a vital resource for ensuring accuracy and consistency in defining spatial locations using coordinates, as highlighted on the <a href="../../../geodetic_awareness.html">Geodetic Awareness page</a>. </span></p>
318<p><span style="font-size: 10pt; font-family: arial, helvetica, sans-serif;">The EPSG Dataset is the <em>de facto standard</em> in the geospatial industry, initiated in 1985 and first made public in 1993. For more information about its content and usage, refer to the&nbsp;<a href="https://www.iogp.org/workstreams/engineering/geomatics/epsg-info/">EPSG information page</a>, </span><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;">the&nbsp;</span><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;"><a title="EPSG-HISTORY" href="https://www.iogp.org/workstreams/engineering/geomatics/epsg-history/">History of the EPSG Dataset</a></span><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;">, and the </span><a style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;" href="../../../guidance-notes.html">Series 373-07-n EPSG Guidance Notes.</a></p>
319</td>
320<td style="width: 3.3875%; height: 363.54px;">&nbsp;</td>
321<td style="width: 47.5448%; vertical-align: top; height: 363.54px;">
322<h2><span style="color: #000000;"><a style="color: #000000;" href="https://www.iogp.org/workstreams/engineering/geomatics/epsg-info/">EPSG celebrating 40th anniversary</a></span></h2>
323<p>&nbsp;</p>
324<div style="padding: 56.25% 0 0 0; position: relative;"><iframe style="position: absolute; top: 0px; left: 0px; width: 358px; height: 201px;" title="EPSG Explainer video" src="https://player.vimeo.com/video/1164267873?badge=0&amp;autopause=0&amp;player_id=0&amp;app_id=58479" frameborder="0"></iframe></div>
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329<h2><span style="color: #3598db;"><a href="../../../dataset-change-requests.html">Report an issue or request a change</a>&nbsp;</span></h2>
330<p><span style="font-size: 18pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;">To request changes to the EPSG Dataset use the </span><a style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;" href="../../../dataset-change-requests.html" target="_blank" rel="noopener">EPSG Dataset Change Request Help</a><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;">.</span></span></p>
331<h2><span style="font-size: 18pt;"><a href="../../../download-dataset.html"><span style="color: #3598db;">Download</span></a></span></h2>
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657<p class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span style="color: #000000;">EPSG.org (this site) is the official IOGP site to distribute the authoritative EPSG Dataset, online and offline. The latest version is available via <a href="../../../download-dataset.html">Download the latest EPSG Dataset</a>.&nbsp;</span></span><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;">Changes to the data are described in the </span><a style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;" href="../../../whatsnew.html">EPSG Dataset Release History</a><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;">.</span></p>
658<p class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span style="color: #000000;">Its data model follows the ISO 19111:2019 international standard for referencing by coordinates, including its provision for dynamic datums, geoid-based vertical datums, datum ensembles and derived projected coordinate reference systems. EPSG Dataset versions 10.0 and later follow this data model. It is generally backward compatible with the previous 19111:2007 data model but has some modifications and additional elements, see the <a href="../../../data-model.html">overview of the data model changes</a> for details.</span></span></p>
659<span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"> </span>
660<p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><span style="color: #000000;">EPSG Dataset versions v10.003 in the 2019 model and v9.9.1 in the 2007 data model released in September 2020 contain the same data. Both are available from the </span><a href="../../../archives.html" target="_blank" rel="noopener">Dataset Archives</a><span style="color: #000000;">. Subsequent data releases are available only in the 19111:2019 data model.</span></span></p>
661</td>
662<td style="width: 3.3875%; height: 505.036px;">&nbsp;</td>
663<td style="width: 47.5448%; vertical-align: top; height: 505.036px;">
664<h2><span style="color: #3598db; font-size: 18pt;"><a href="../../../user/register">Registration</a></span></h2>
665<p><span style="font-size: 10pt; font-family: arial, helvetica, sans-serif;">To gain access to the EPSG data through these web pages you must agree to the&nbsp;<a href="../../../terms-of-use.html">Terms of Use</a>&nbsp;by registering on this site (c</span><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;">lick&nbsp;</span><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;"><a href="../../../user/register">here</a></span><span style="font-family: arial, helvetica, sans-serif; font-size: 13.3333px;">&nbsp;to register)</span><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;">. Once logged in, you will have access to additional functionality and may also manage your account including your subscription to EPSG News email updates.</span></p>
666<p><span style="font-size: 10pt; font-family: arial, helvetica, sans-serif;">To&nbsp;register, you must enter your email address (visible to IOGP) and password (not visible). This information is not used outside this site, nor is it passed on to any third party.</span></p>
667<h2><span style="color: #3598db; font-size: 18pt;">GeoRepository API</span></h2>
668<p><span style="font-size: 10pt; font-family: arial, helvetica, sans-serif;">Software developers can find the RESTful GeoRepository <a style="box-sizing: border-box; color: #0085cc; text-decoration-line: none; cursor: pointer;" href="https://apps.epsg.org/api/swagger/index.html">
668API description in swagger</a><span style="color: #303030;">.</span></span></p>
669<p><span style="font-size: 10pt; font-family: arial, helvetica, sans-serif;"><a href="../../../API_UsersGuide.html">The EPSG Registry API User Guide</a> provides assistance to computer application developers who wish to use the RESTful API of the EPSG GeoRepository to query and retrieve entities and attributes from the Dataset.&nbsp;<span style="color: #303030;"><br /></span></span></p>
670<p><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;">See also the <a href="../../../ogc_uri.html">Open Geospatial Consortium (OGC) standard syntax for a resolvable URI string</a>, which also explains how to construct hyperlinks to epsg.org reports using EPSG codes.</span></p>
671</td>
672</tr>
673</tbody>
674</table>
675<p style="padding: 2.5% 0 0 0; position: relative;">&nbsp;</p></div>            </div>
676            <!-- /content -->
677
678            <div class="grt-cookie">
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680                    <p>
681                    We use cookies to ensure that we give you the best experience on our website. 
682                    By continue browsing our site, you consent to our use of cookies.
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687
688            <style>
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699
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701    <div class="modal-dialog modal-xl modal-fullscreen-xl-down">
702        <!-- Modal content-->
703        <div class="modal-content">
704            <div class="modal-header">
705                <h4 class="modal-title">Wildcard search</h4>
706                <button type="button" class="btn-close bg-transparent border-0" data-bs-dismiss="modal"></button>
707            </div>
708            <div class="modal-body">
709                <p><strong> Wildcards and filters in text searches</strong></p>
710                <p>Text searches search the Name and Alias fields, and also the Extent Description field.<br/>Strings which are entirely numeric will additionally search the object Code field.<br/>Users who are logged in may extend the search to also include the Remarks field.<br/>Text searches are case-insensitive.</p>
711                <p><strong> Wildcards</strong></p>
712                
713                <table class="table table-bordered">
714                    <tr>
715                        <td class="table-heading" width="100">Wildcard</td> 
716                        <td class="table-heading">Example</td>
717                    </tr>
718                    <tr>
719                        <td>% <i>or</i> *
720                            <br />
721                        </td>
722                        <td>Any wildcard characters </td>                         
723                    </tr>
724                    <tr>
725                        <td> ?
726                            <i>or</i>
727                            _
728                        </td>
729                        <td>One wildcard character</td>                        
730                    </tr>
731                    <tr>
732                        <td>[ - ]</td>
733                        <td>[ - ]	Range <br />
734                        e.g. N[a-c] will return all geodetic objects that contains a string starting with the letter 'N' or 'n' followed by any of the letters contained within the range specified within the square bracket, e.g. letters a, b and c. </td>
735                         
736                    </tr>
737                    <tr>
738                        <td>| </td>
739                        <td>Or <br />
740                        e.g.  E[a|e]M will return all geodetic objects that contains a string starting with the letter E(e), ends with the letter M(m) and also contain either the letter a or letter e.</td>
741                    </tr>
742                </table>
743
744                <p>The text string is automatically prefixed and suffixed by the % wildcard. These prefixes and suffixes are not applied to searches for object c
744ode.</p>                
745
746
747                <p><strong>Filters</strong></p>
748                <p><strong>[name]</strong> =xxx  There is no limit to the length of the text string that can be submitted to the search</p>
749                <p><strong>[code]</strong> =yyy [code]< yyy    [code] > yyy, where yyy is an integer and does not accept wildcards </p>
750                <p><strong>[type]</strong> =xxx applies a filter by subtype. It may be used to filter subtypes of CRS, CS, or datum.</p>
751                
752                <p> Wildcards and filters may be combined together. <br/>
753                See the Support Documentation / User Manual for more detailed information.</p> 
754
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