{"help": "https://pro.iepnb.gob.es/catalogo/api/3/action/help_show?name=package_show", "success": true, "result": {"access_rights": "http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations", "alternate_identifier": "DOI: 10.1016/j.gca.2016.09.016", "applicable_legislation": ["http://data.europa.eu/eli/reg_impl/2023/138/oj"], "author": "Rodellas, V., Garc\u00eda Orellana, J., Trezzi, G., Masqu\u00e9, P., Stieglitz, T.C., Bokuniewicz, H., Cochran, J.K. y Berdalet, E.", "author_name": "Rodellas, V., Garc\u00eda Orellana, J., Trezzi, G., Masqu\u00e9, P., Stieglitz, T.C., Bokuniewicz, H., Cochran, J.K. y Berdalet, E.", "classification_variables": {"es": ""}, "conforms_to": ["https://www.boe.es/eli/es/res/2013/02/19/(4)"], "contact_email": "organismo@example.org", "contact_name": "Organismo publicador del Cat\u00e1logo", "contact_role": "http://inspire.ec.europa.eu/metadata-codelist/ResponsiblePartyRole/pointOfContact", "contact_uri": "http://datos.gob.es/recurso/sector-publico/org/Organismo/EA0000000", "contact_url": "https://organismo.example.org/", "created": "2024-11-05", "creator_user_id": "d24a314a-79ce-48c0-abd9-54cb42706da4", "dataset_scope": "non_spatial_dataset", "dcat_type": "http://id.loc.gov/vocabulary/marcgt/art", "encoding": "UTF-8", "featured": false, "graphic_overview": "https://ars.els-cdn.com/content/image/1-s2.0-S0016703716X0021X-cov150h.gif", "hvd": "hvd", "hvd_category": ["http://data.europa.eu/bna/c_dd313021"], "id": "160a401c-e47b-5579-bfca-c98c2c5e48ec", "identifier": "160a401c-e47b-5579-bfca-c98c2c5e48ec", "isopen": true, "keyword_iepnb": ["aguas_exteriores", "hidrodinamicas", "medidas_de_gestion", "seguimiento"], "language": "http://publications.europa.eu/resource/authority/language/SPA", "license_id": "cc-by", "license_title": "Creative Commons Attribution", "license_url": "http://www.opendefinition.org/licenses/cc-by", "lineage_source": ["Geochimica et Cosmochimica Acta", "vol 196", "58-73"], "maintainer": "", "maintainer_name": "", "metadata_created": "2026-06-23T15:00:09.091054", "metadata_modified": "2026-06-25T12:43:05.429075", "metadata_profile": ["https://semiceu.github.io/DCAT-AP/releases/3.0.0/"], "miteco_data_population": {"es": ""}, "miteco_data_territory": {"es": ""}, "miteco_dataset_type": "http://publications.europa.eu/resource/authority/dataset-type/STATISTICAL", "miteco_geo_level": "1", "modified": "2026-06-25", "name": "160a401c-e47b-5579-bfca-c98c2c5e48ec", "notes": "The specific ingrowth rates of different radium isotopes make them valuable tracers to distinguish processes occurring at different temporal scales. Here we demonstrate the use of the radium quartet (223Ra, 224Ra, 226Ra and 228Ra) to differentiate flows of submarine groundwater discharge and porewater exchange to a coastal embayment (Alfacs Bay, NW Mediterranean Sea), based on the assumption that these processes occur on different time scales. In order to evaluate the seasonal dynamics of groundwater and porewater inputs to the bay, we conducted three seasonal samplings at Alfacs Bay, during which samples for Ra isotopes were collected from bay waters, groundwater springs, porewaters and irrigation channels. Activities of short\u0002lived Ra isotopes in the bay showed a strong seasonality, (e.g. average 224Ra activities in summer (\u000132 dpm 100 L\u00031 ) up to 4 times higher than in winter (\u00018 dpm 100 L\u00031 )). In contrast, the activities of the long-lived Ra isotopes were fairly constant throughout the year (e.g. activities of 226Ra were \u000116 and \u000114 dpm 100 L\u00031 in summer and winter, respectively). The rela\u0002tively short exposure to sediments of recirculation fluxes resulted in porewaters significantly enriched in short-lived Ra iso\u0002topes relative to the long-lived ones. The distinct signatures of different sources allowed us to construct seasonal Ra mass balances to estimate both groundwater dis\u0002charge, which ranges from (40 \u00b1 60)\u0004103 m3 \u0004d\u00031 in summer to (310 \u00b1 200)\u0004103 m3 \u0004d\u00031 in winter, and porewater exchange fluxes, ranging from (1200 \u00b1 120)\u0004103 m3 \u0004d\u00031 in summer to (270 \u00b1 40)\u0004103 m3 \u0004d\u00031 in winter. Whereas the seasonal variability of groundwater inputs is likely governed by the terrestrial hydraulic gradient, a qualitative evaluation of the drivers of pore\u0002water exchange suggested that the strong seasonality of the seawater recirculation inputs is likely mediated by seasonal cycles on the activity of benthic infauna. Ra isotopes are thus valuable tracers to differentiate fluxes of both submarine groundwater discharge and porewater exchange, allowing a more accurate evaluation of the fluxes of freshwater and solutes to coastal ecosystems, as well as their implications for coastal biogeochemical cycles.", "notes_translated": {"es": "The specific ingrowth rates of different radium isotopes make them valuable tracers to distinguish processes occurring at different temporal scales. Here we demonstrate the use of the radium quartet (223Ra, 224Ra, 226Ra and 228Ra) to differentiate flows of submarine groundwater discharge and porewater exchange to a coastal embayment (Alfacs Bay, NW Mediterranean Sea), based on the assumption that these processes occur on different time scales. In order to evaluate the seasonal dynamics of groundwater and porewater inputs to the bay, we conducted three seasonal samplings at Alfacs Bay, during which samples for Ra isotopes were collected from bay waters, groundwater springs, porewaters and irrigation channels. Activities of short\u0002lived Ra isotopes in the bay showed a strong seasonality, (e.g. average 224Ra activities in summer (\u000132 dpm 100 L\u00031 ) up to 4 times higher than in winter (\u00018 dpm 100 L\u00031 )). In contrast, the activities of the long-lived Ra isotopes were fairly constant throughout the year (e.g. activities of 226Ra were \u000116 and \u000114 dpm 100 L\u00031 in summer and winter, respectively). The rela\u0002tively short exposure to sediments of recirculation fluxes resulted in porewaters significantly enriched in short-lived Ra iso\u0002topes relative to the long-lived ones. The distinct signatures of different sources allowed us to construct seasonal Ra mass balances to estimate both groundwater dis\u0002charge, which ranges from (40 \u00b1 60)\u0004103 m3 \u0004d\u00031 in summer to (310 \u00b1 200)\u0004103 m3 \u0004d\u00031 in winter, and porewater exchange fluxes, ranging from (1200 \u00b1 120)\u0004103 m3 \u0004d\u00031 in summer to (270 \u00b1 40)\u0004103 m3 \u0004d\u00031 in winter. Whereas the seasonal variability of groundwater inputs is likely governed by the terrestrial hydraulic gradient, a qualitative evaluation of the drivers of pore\u0002water exchange suggested that the strong seasonality of the seawater recirculation inputs is likely mediated by seasonal cycles on the activity of benthic infauna. Ra isotopes are thus valuable tracers to differentiate fluxes of both submarine groundwater discharge and porewater exchange, allowing a more accurate evaluation of the fluxes of freshwater and solutes to coastal ecosystems, as well as their implications for coastal biogeochemical cycles."}, "num_resources": 1, "num_tags": 5, "organization": {"id": "bca483f7-26e2-4ed8-99e8-65f5b3c7a26e", "name": "iepnb", "title": "", "type": "organization", "description": "", "image_url": "", "created": "2026-06-23T14:36:08.942021", "is_organization": true, "approval_status": "approved", "state": "active"}, "owner_org": "bca483f7-26e2-4ed8-99e8-65f5b3c7a26e", "private": false, "provenance": {"es": ""}, "publisher_email": "buzon-bdatos@miteco.es", "publisher_name": "\u00c1rea de Banco de Datos de la Naturaleza. Direcci\u00f3n General Biodiversidad, Bosques y Desertificaci\u00f3n. Ministerio para la Transici\u00f3n Ecol\u00f3gica y el Reto Demogr\u00e1fico", "publisher_type": "http://purl.org/adms/publishertype/NationalAuthority", "publisher_uri": "https://iepnb.es/catalogo/organization/iepnb", "publisher_url": "https://www.miteco.gob.es/", "purpose": {"es": ""}, "reference": [], "schemingdcat_xls_metadata_template": false, "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[-2.34, 37.38], [-0.69, 37.38], [-0.69, 38.76], [-2.34, 38.76], [-2.34, 37.38]]]}", "spatial_uri": "http://datos.gob.es/recurso/sector-publico/territorio/Autonomia/Region-Murcia", "state": "active", "study_variables": {"es": ""}, "tag_uri": ["http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/environment"], "thematic_area": ["espacios_protegidos"], "theme_es": ["http://datos.gob.es/kos/sector-publico/sector/medio-ambiente"], "title": "Using the radium quartet to quantify submarine groundwater discharge and porewater exchange", "title_translated": {"es": "Using the radium quartet to quantify submarine groundwater discharge and porewater exchange"}, "topic": "http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/biota", "type": "dataset", "url": "https://iepnb.es:443/catalogo/dataset/160a401c-e47b-5579-bfca-c98c2c5e48ec", "version_notes": {"es": ""}, "contact": [{"email": "organismo@example.org", "name": "Organismo publicador del Cat\u00e1logo", "role": "http://inspire.ec.europa.eu/metadata-codelist/ResponsiblePartyRole/pointOfContact", "uri": "http://datos.gob.es/recurso/sector-publico/org/Organismo/EA0000000", "url": "https://organismo.example.org/"}], "creator": [{"name": "Rodellas, V., Garc\u00eda Orellana, J., Trezzi, G., Masqu\u00e9, P., Stieglitz, T.C., Bokuniewicz, H., Cochran, J.K. y Berdalet, E."}], "groups": [{"description": "Grupo de conjuntos de datos del Mar Menor.", "display_name": "Mar Menor", "id": "51cdbdfb-5a8e-46b2-b776-094251cf43d4", "image_display_url": "https://upload.wikimedia.org/wikipedia/commons/c/c0/Isla_del_Bar%C3%B3n_%28Isla_Mayor%29_-_Mar_Menor_-_Cartagena%2C_Murcia_-_Espa%C3%B1a.jpg", "name": "mar_menor", "title": "Mar Menor"}], "publisher": [{"email": "buzon-bdatos@miteco.es", "name": "\u00c1rea de Banco de Datos de la Naturaleza. 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