Temporal hydrologic and chemical records from the Ox Bel Ha cave network within the coastal aquifer of the Yucatan Peninsula, from January 2015 to January 2016

Online link https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9U0KRVM/CenoteBangTemporalRecords_2015-2016.faq.html
Description Natural cave passages penetrating a coastal aquifer in the Yucatan Peninsula (Mexico) were accessed to investigate how regional meteorology and hydrology control methane dynamics in karst subterranean estuaries. Three field trips were carried out in January 2015, June 2015, and January 2016 to obtain year-long high-resolution temporal records of water chemistry and environmental parameters below and above the surface at a site (Cenote Bang) within the Ox Bel Ha cave network. These efforts resulted in chemical records of dissolved methane concentrations and its stable carbon isotopic content and major ion concentrations (i.e., chloride and sulfate) in approximately 2.5-day resolution from January 2015 to January 2016, sampled by OsmoSamplers. In addition, sensor-based measurements of environmental parameters include year-long precipitation, barometric pressure, water level, flow velocity, and water temperature records. Field activities were carried out by the U.S. Geological Survey (USGS) Coastal and Marine Geology Program in conjunction with Texas AM University at Galveston. [More]
Originators Brankovits, David; Pohlman, John W.; Mann, Adrian G.; and Lapham, Laura L.

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Browse graphic of precipitation, hydrologic, and chemical records from 15 January 2015 to 20 January 2016. Upper plot shows the precipitation record. Second panel from top is water level and flow velocity from the brackish water (BW) where conduit flow is concentrated. Chemical records from fresh water (FW; at approximately 3.5 m water depth) and brackish water (BW; at approximately 7.5 m water depth) include methane concentrations (red diamond), stable carbon isotopic values of methane (green square), and salinity (blue circle).
Browse graphic of precipitation, hydrologic, and chemical records from 15 January 2015 to 20 January 2016. Upper plot shows the precipitation record. Second panel from top is water level and flow velocity from the brackish water (BW) where conduit flow is concentrated. Chemical records from fresh water (FW; at approximately 3.5 m water depth) and brackish water (BW; at approximately 7.5 m water depth) include methane concentrations (red diamond), stable carbon isotopic values of methane (green square), and salinity (blue circle).