Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 University of Rostock https://www.uni-rostock.de/en/ https://ror.org/03zdwsf69 University of the Philippines Los Baños http://www.uplb.edu.ph/ https://ror.org/030s54078 Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 Saban Rhodelyn rhodelyn.saban@io-warnemuende.de Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 Kienzler Jakob jakobkienzler@yahoo.de University of Rostock https://www.uni-rostock.de/en/ https://ror.org/03zdwsf69 Batistel Cheryl cheryl.batistel@vsu.edu.ph University of Rostock https://www.uni-rostock.de/en/ https://ror.org/03zdwsf69 Visayas State University VSU https://www.vsu.edu.ph/ https://ror.org/00rt3cy21 Choo Simeon simeon.choo@gmail.com Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 Wang Miaorun miaorun.wang@uni-rostock.de University of Rostock https://www.uni-rostock.de/en/ https://ror.org/03zdwsf69 Gräwe Ulf 0000-0003-4007-9764 Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 Böttcher Michael Ernst michael.boettcher@io-warnemuende.de 0000-0002-8877-0303 Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 University of Rostock https://www.uni-rostock.de/en/ https://ror.org/03zdwsf69 Janssen Manon manon.janssen@uni-rostock.d 0000-0001-7249-8870 University of Rostock https://www.uni-rostock.de/en/ https://ror.org/03zdwsf69 2026 Submarine groundwater discharge in front of a coastal peatland: Seepage rates and hydrochemistry dataset https://doi.pangaea.de/10.1594/PANGAEA.996292 2026-09-08T05:17:08 Coastal peatlands are important carbon, nutrient, and trace metal stores, which might be mobilized and released to the adjacent sea upon rewetting. The objectives of this study were to quantify submarine groundwater discharge (SGD) in front of a rewetted coastal peatland at the southern Baltic Sea coast, to estimate associated fluxes of solutes, and to characterize the discharged water using stable oxygen, hydrogen, and carbon isotope composition. We directly measured SGD rates and collected the discharging water using seepage meters in summer and autumn 2021. SGD, seawater and groundwater were analyzed for major ion, nutrient, DOC/DIC and trace metal concentrations as well as the composition of water and carbon isotopes. Racasa et al. (2026) is based on this dataset. Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Saban Rhodelyn C 0009-0007-0660-9270 Kienzler Jakob jakobkienzler@yahoo.de Batistel Cheryl cheryl.batistel@vsu.edu.ph Choo Simeon simeon.choo@gmail.com Wang Miaorun miaorun.wang@uni-rostock.de Gräwe Ulf 0000-0003-4007-9764 Böttcher Michael Ernst michael.boettcher@io-warnemuende.de 0000-0002-8877-0303 Janssen Manon manon.janssen@uni-rostock.d 0000-0001-7249-8870 2026 Characterization of Submarine Groundwater Discharge in Front of a Rewetted Coastal Peatland journal article Estuaries and Coasts 49(1) https://doi.org/10.1007/s12237-025-01607-z 12 README file for detailed method description used in Racasa et al. (2026) https://download.pangaea.de/reference/141405/attachments/README.xlsx 12.1162761 12.172704 54.21598116 54.226027 12.162127741666666 54.22057771833332 2021-06-30T09:20:00 2021-09-15T11:15:00 horizontal profile German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 240942083 DFG Research Training Group Baltic TRANSCOAST https://gepris.dfg.de/project/240942083 Baltic_Sea_coast_1_GW 1_GW 54.225733 12.172704 Coastal Baltic Sea, Germany 2021-07-01T11:20:00 2021-07-02T11:47:00 Seepage meter Baltic_Sea_coast_1_SM1 1_SM1 54.225996 12.172071 Coastal Baltic Sea, Germany 2021-06-30T09:23:00 2021-07-01T13:16:00 Seepage meter Baltic_Sea_coast_1_SM2 1_SM2 54.226027 12.172116 Coastal Baltic Sea, Germany 2021-06-30T09:30:00 2021-07-02T11:12:00 Seepage meter Baltic_Sea_coast_1_SM3 1_SM3 54.22594 12.172192 Coastal Baltic Sea, Germany 2021-06-30T09:22:00 2021-07-02T10:58:00 Seepage meter Baltic_Sea_coast_1_SM4 1_SM4 54.225973 12.172239 Coastal Baltic Sea, Germany 2021-06-30T09:29:00 2021-07-02T11:17:00 Seepage meter Baltic_Sea_coast_1_SM5 1_SM5 54.225885 12.172307 Coastal Baltic Sea, Germany 2021-06-30T09:20:00 2021-07-02T10:55:00 Seepage meter Baltic_Sea_coast_1_SM6 1_SM6 54.22592 12.172352 Coastal Baltic Sea, Germany 2021-06-30T09:29:00 2021-07-01T13:23:00 Seepage meter Baltic_Sea_coast_1_SW 1_SW 54.225973 12.172239 Coastal Baltic Sea, Germany 2021-06-30T12:40:00 2021-07-02T11:20:00 Seepage meter Baltic_Sea_coast_2_SM1 2_SM1 54.21659898 12.16303768 Coastal Baltic Sea, Germany 2021-09-14T09:32:00 2021-09-15T11:10:00 Seepage meter Baltic_Sea_coast_2_SM2 2_SM2 54.21628 12.162874 Coastal Baltic Sea, Germany 2021-09-14T09:32:00 2021-09-15T11:14:00 Seepage meter Baltic_Sea_coast_2_SM3 2_SM3 54.21657248 12.16310092 Coastal Baltic Sea, Germany 2021-09-14T09:32:00 2021-09-15T11:11:00 Seepage meter Baltic_Sea_coast_2_SM4 2_SM4 54.216312 12.1162761 Coastal Baltic Sea, Germany 2021-09-14T09:32:00 2021-09-15T11:15:00 Seepage meter Baltic_Sea_coast_2_SM5 2_SM5 54.21655151 12.1631525 Coastal Baltic Sea, Germany 2021-09-14T09:44:00 2021-09-15T11:12:00 Seepage meter Baltic_Sea_coast_2_SM6 2_SM6 54.216348 12.162612 Coastal Baltic Sea, Germany 2021-09-14T10:19:00 2021-09-15T11:15:00 Seepage meter Baltic_Sea_coast_2_SW 2_SW 54.216312 12.1162761 Coastal Baltic Sea, Germany 2021-09-14T11:11:00 2021-09-15T11:04:00 Beaker Baltic_Sea_coast_MP2LS MP2LS 54.2159948 12.16423372 Coastal Baltic Sea, Germany 2021-09-15T00:00:00 2021-09-15T00:00:00 Submersible pump SubP Baltic_Sea_coast_MP2P MP2P 54.21598116 12.16424133 Coastal Baltic Sea, Germany 2021-09-15T00:00:00 2021-09-15T00:00:00 Baltic_Sea_coast_MP2US MP2US 54.216001 12.164275 Coastal Baltic Sea, Germany 2021-09-15T00:00:00 2021-09-15T00:00:00 Submersible pump SubP 2186 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Event Optional event label Event 2 Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Event 2 Latitude of event Latitude Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Latitude Longitude of event Longitude Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Longitude Date/Time of event Date/Time Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Date/Time Date/Time of event 2 Date/Time 2 Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Date/Time 2 Type of study Study type type Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Study type Sample type Samp type Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Samp type Area/locality Area Area http://dbpedia.org/resource/Area Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Area Location Location location Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Location Seepage bag, volume change Seepage bag vol change ml Volume http://dbpedia.org/resource/Volume see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Filled Seepage bag vol change [ml] (Filled) Seepage rate Seepage rate cm/day rate http://purl.obolibrary.org/obo/PATO_0000161 Linear Velocity http://dbpedia.org/resource/Velocity see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Filled Seepage rate [cm/day] (Filled) Seepage bag, volume change Seepage bag vol change ml Volume http://dbpedia.org/resource/Volume see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Empty Seepage bag vol change [ml] (Empty) Seepage rate Seepage rate cm/day rate http://purl.obolibrary.org/obo/PATO_0000161 Linear Velocity http://dbpedia.org/resource/Velocity see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Empty Seepage rate [cm/day] (Empty) Oxygen, dissolved DO mg/l oxygen O https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25805 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 DO [mg/l] Dissolved oxygen saturation DO sat % Dimensionless Ratio ψ see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 DO sat [%] Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Temp [°C] Conductivity Cond mS/cm https://en.wikipedia.org/wiki/Electrical_conductivity conductivity http://purl.obolibrary.org/obo/PATO_0001585 see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Cond [mS/cm] Salinity Sal salinity http://purl.obolibrary.org/obo/PATO_0085001 see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 PSU Sal (PSU) Total dissolved solids TDS ng/kg see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 TDS [ng/kg] pH pH see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 pH Oxidation reduction (RedOx) potential Eh mV https://en.wikipedia.org/wiki/Reduction_potential reduction oxidation interface RedOx Electric Flux http://dbpedia.org/resource/Electric_flux see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Eh [mV] Chloride Cl- mg/l chloride http://purl.obolibrary.org/obo/CHEBI_17996 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Cl- [mg/l] Chloride Cl- mmol/l chloride http://purl.obolibrary.org/obo/CHEBI_17996 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Cl- [mmol/l] Nitrite [NO2]- mg/l nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [NO2]- [mg/l] Bromide Br- mg/l bromide http://purl.obolibrary.org/obo/CHEBI_15858 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Br- [mg/l] Bromide Br- mmol/l bromide http://purl.obolibrary.org/obo/CHEBI_15858 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Br- [mmol/l] Nitrate [NO3]- mg/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [NO3]- [mg/l] Sulfate [SO4]2- mg/l sulfate http://purl.obolibrary.org/obo/CHEBI_16189 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [SO4]2- [mg/l] Sulfate [SO4]2- mmol/l sulfate http://purl.obolibrary.org/obo/CHEBI_16189 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [SO4]2- [mmol/l] Sodium Na+ mg/l sodium Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Na+ [mg/l] Sodium Na mmol/l sodium Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Na [mmol/l] Potassium K+ mg/l potassium K Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 K+ [mg/l] Potassium K mmol/l potassium K Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 K [mmol/l] Calcium Ca mg/l see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Ca [mg/l] Calcium Ca mmol/l calcium Ca https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:22984 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Ca [mmol/l] Magnesium Mg mg/l see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Mg [mg/l] Magnesium Mg mmol/l magnesium Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 Mg [mmol/l] Carbon, organic, dissolved DOC mg/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic dissolved http://purl.obolibrary.org/obo/PATO_0001986 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 DOC [mg/l] Carbon, organic, dissolved DOC mmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 DOC [mmol/l] Carbon, inorganic, dissolved DIC mg/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 DIC [mg/l] Carbon, inorganic, dissolved DIC mmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 DIC [mmol/l] Nitrogen, total dissolved TDN mg/l nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 TDN [mg/l] Nitrogen, total dissolved TDN µmol/l nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 TDN [µmol/l] Phosphate [PO4]3- mg/l phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [PO4]3- [mg/l] Phosphate [PO4]3- µmol/l phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [PO4]3- [µmol/l] Ammonium [NH4]+ mg/l ammonium http://purl.obolibrary.org/obo/CHEBI_28938 Density http://dbpedia.org/resource/Density see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [NH4]+ [mg/l] Ammonium [NH4]+ µmol/l ammonium http://purl.obolibrary.org/obo/CHEBI_28938 Molar Concentration see README file Racasa Erwin Don erwin.racasa@uni-rostock.de 0000-0002-9300-1744 [NH4]+ [µmol/l] Iron Fe µg/l Density http://dbpedia.org/resource/Density see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Fe [µg/l] Iron Fe µmol/l Molar Concentration see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Fe [µmol/l] Manganese Mn µg/l manganese Mn https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18291 Density http://dbpedia.org/resource/Density see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Mn [µg/l] Manganese Mn µmol/l manganese Mn https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18291 Molar Concentration see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Mn [µmol/l] Barium Ba µg/l barium Density http://dbpedia.org/resource/Density see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Ba [µg/l] Barium Ba µmol/l barium Molar Concentration see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Ba [µmol/l] Lithium Li µg/l Density http://dbpedia.org/resource/Density see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Li [µg/l] Lithium Li µmol/l Molar Concentration see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Li [µmol/l] Strontium Sr µg/l strontium Density http://dbpedia.org/resource/Density see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Sr [µg/l] Strontium Sr µmol/l strontium Molar Concentration see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Sr [µmol/l] Silicon Si µg/l silicon Si https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27573 Density http://dbpedia.org/resource/Density see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Si [µg/l] Silicon Si µmol/l silicon Si https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27573 Molar Concentration see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de Si [µmol/l] δ13C, dissolved inorganic carbon δ13C DIC ‰ PDB δ13C http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes dissolved inorganic carbon DIC see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de δ13C DIC [‰ PDB] Carbon, inorganic, dissolved DIC mmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de DIC [mmol/l] δ18O, water δ18O H2O ‰ SMOW δ18O http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes water http://purl.obolibrary.org/obo/CHEBI_15377 see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de δ18O H2O [‰ SMOW] δ Deuterium, water δD H2O ‰ SMOW https://en.wikipedia.org/wiki/Deuterium water http://purl.obolibrary.org/obo/CHEBI_15377 see README file Jenner Anna-Kathrina anna.jenner@io-warnemuende.de δD H2O [‰ SMOW] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels author105426 author114717 author118626 author118627 author118628 author118629 author28867 author63399 author68868 author88916 author94010 award1306 curlevel30 event3423324 event3423325 event3423326 event3423327 event3423328 event3423329 event3423330 event3423331 event3423332 event3423333 event3423334 event3423335 event3423336 event3423337 event3423338 event3423339 event3423340 event3423341 funder20472 geocode1599 geocode1600 geocode1601 inst21448 inst22911 inst22912 inst49 journal5141 license21 method10319 method18135 method18149 method19480 param106233 param106858 param106968 param127016 param145233 param15215 param15373 param1720 param181587 param185520 param187035 param187036 param1882 param191458 param191460 param2212 param2215 param26920 param27072 param47 param49320 param50 param519950 param52 param530137 param54 param54282 param54283 param54284 param548539 param567726 param567727 param567729 param57 param58 param59 param60 param62 param6205 param63 param64 param7059 param716 param717 param722 param7370 param758 param761 param764 param770 param79659 param79660 param88102 param88113 param88114 pi88916 pi94010 ref140890 ref141405 term1073089 term1073093 term1073136 term1073162 term1073173 term1073174 term1073219 term1073482 term1073483 term1073484 term1073493 term1073605 term2606205 term2663532 term2698012 term38477 term38478 term38494 term38520 term38521 term38548 term40134 term40625 term40663 term40665 term40966 term41048 term43770 term43792 term43794 term43814 term43876 term43972 term43984 term44030 term44419 term47766 term49506 term75691 topotype4