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<p>Characterizing and predicting groundwater flow in complex karst aquifers poses significant challenges. This study examines the potential application of acoustic Doppler current profiler (ADCP) technology for measuring in situ groundwater flow measurement within sinkholes in the Yucatán Peninsula, Mexico. Two main questions are addressed: Can ADCP determine flow within Yucatán Peninsula sinkholes, and are groundwater flow vectors related to water clarity in open sinkholes? The geological setting of the Yucatán Platform features horizontal sedimentary strata with highly permeable limestones and extensive karst features. The methodology was performed in three open sinkholes, each with different water clarity. ADCP equipment measured groundwater flow speed and direction, producing single-point vectors at water depths of 2, 4, 6, and 8 m while water clarity was measured using a Sechi disk and turbidimeter. Rose diagrams illustrated speed and direction variations in each sinkhole, thus revealing diverse flow patterns for each. The groundwater flow speed within sinkholes did not correlate with water clarity, but the predominant flow direction did. This study demonstrates ADCP’s feasibility for in situ karst groundwater flow measurement, providing insights into karst aquifers of the Yucatán Peninsula. Moreover, this method proves to be efficient and noninvasive, as well as being straightforward for determining groundwater flow properties in karstic terrain.</p>

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Characterizing groundwater flow using an acoustic Doppler current profiler in sinkholes of the Yucatán Península, Mexico

  • 期刊论文

  • 发表日期：

    2026年6月20日

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  • Laura Rossana Fracica Gonzalez,
  • Rosa Maria Leal Bautista,
  • Megan R. M. Brown,
  • Melissa E. Lenczewski

摘要

Characterizing and predicting groundwater flow in complex karst aquifers poses significant challenges. This study examines the potential application of acoustic Doppler current profiler (ADCP) technology for measuring in situ groundwater flow measurement within sinkholes in the Yucatán Peninsula, Mexico. Two main questions are addressed: Can ADCP determine flow within Yucatán Peninsula sinkholes, and are groundwater flow vectors related to water clarity in open sinkholes? The geological setting of the Yucatán Platform features horizontal sedimentary strata with highly permeable limestones and extensive karst features. The methodology was performed in three open sinkholes, each with different water clarity. ADCP equipment measured groundwater flow speed and direction, producing single-point vectors at water depths of 2, 4, 6, and 8 m while water clarity was measured using a Sechi disk and turbidimeter. Rose diagrams illustrated speed and direction variations in each sinkhole, thus revealing diverse flow patterns for each. The groundwater flow speed within sinkholes did not correlate with water clarity, but the predominant flow direction did. This study demonstrates ADCP’s feasibility for in situ karst groundwater flow measurement, providing insights into karst aquifers of the Yucatán Peninsula. Moreover, this method proves to be efficient and noninvasive, as well as being straightforward for determining groundwater flow properties in karstic terrain.