<?xml version='1.0' encoding='utf-8'?>
<?xml-stylesheet type="text/xsl" href="/v2/static/oai2.xsl"?>
<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd">
  <responseDate>2026-10-06T10:38:10Z</responseDate>
  <request identifier="oai:figshare.com:article/34003023" metadataPrefix="oai_dc" verb="GetRecord">https://api.figshare.com/v2/oai</request>
  <GetRecord>
    <record>
      <header>
        <identifier>oai:figshare.com:article/34003023</identifier>
        <datestamp>2026-09-26T14:31:34Z</datestamp>
        <setSpec>category_25885</setSpec>
        <setSpec>category_26380</setSpec>
        <setSpec>item_type_3</setSpec>
        <setSpec>month_year_09_2026</setSpec>
      </header>
      <metadata>
        <oai_dc:dc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
          <dc:title>&lt;b&gt;Original and Augmented Dataset of Hydrochemical Characteristics of Pingshuo Mining area, with HCGA Cases Results.&lt;/b&gt;</dc:title>
          <dc:creator>Mingyang Wang (14064585)</dc:creator>
          <dc:creator>Kunfeng Qiu (14583698)</dc:creator>
          <dc:subject>Groundwater hydrology</dc:subject>
          <dc:subject>Water resources engineering</dc:subject>
          <dc:subject>Hydrochemistry</dc:subject>
          <dc:subject>Train Data</dc:subject>
          <dc:description>&lt;p dir="ltr"&gt;The Pingshuo mining area comprises a vertically differentiated groundwater system that includes Quaternary loose rock Shallow pore aquifer (SW), Carboniferous-Permian Roof sandstone fractured aquifer (RW), dynamic replenishment Goaf water (GW), and Ordovician carbonate karst-fissure aquifer (OW), which affected by progressive coal extraction. Groundwater groups were assigned from sampling records and hydrogeological information independently of subsequent hydrochemical classification. &lt;/p&gt;&lt;p dir="ltr"&gt;The dataset comprised 260 groundwater samples collected between 2008 and 2024, including 168 samples from routine monitoring, 61 samples collected during field campaigns in 2023-2024 and 31 samples compiled from previous investigations.&lt;/p&gt;&lt;p dir="ltr"&gt;Model data and training checkpoints of the HCGA models trained for Cases 3–6 and IF Cases 1–2 are included.&lt;/p&gt;</dc:description>
          <dc:date>2026-09-26T14:31:34Z</dc:date>
          <dc:type>Dataset</dc:type>
          <dc:type>Dataset</dc:type>
          <dc:identifier>10.6084/m9.figshare.34003023.v1</dc:identifier>
          <dc:relation>https://figshare.com/articles/dataset/_b_Original_and_Augmented_Dataset_of_Hydrochemical_Characteristics_of_Pingshuo_Mining_area_with_HCGA_Cases_Results_b_/34003023</dc:relation>
          <dc:rights>CC BY 4.0</dc:rights>
        </oai_dc:dc>
      </metadata>
    </record>
  </GetRecord>
</OAI-PMH>
