Reply to Calliari: Evaluating alternative mechanisms of coastal salinity variability in La Paloma, Uruguay

Dr. Calliari’s commentary raises an important point regarding the possible influence of Submarine Groundwater Discharge (SGD) on coastal salinity and biogeochemistry in Uruguay. We acknowledge the relevance of this process and agree that its quantification would represent a valuable step toward a mo...

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Detalhes bibliográficos
Autores: Santana, Rafael, Manta Domínguez, Gastón, Silveira, Santiago, Trinchin Tabárez, Romina, Pereyra, Inés, Laporta, Martín, Santana, O, Fabiano González, Graciela, Barreiro, Marcelo
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:Uruguay
Recursos:Universidad de la República
Repositorio:COLIBRI
Idioma:inglés
OAI Identifier:oai:colibri.udelar.edu.uy:20.500.12008/54448
Acesso em linha:https://hdl.handle.net/20.500.12008/54448
Access Level:acceso abierto
Palavra-chave:Submarine groundwater discharge
Brackish water
Descrição
Resumo:Dr. Calliari’s commentary raises an important point regarding the possible influence of Submarine Groundwater Discharge (SGD) on coastal salinity and biogeochemistry in Uruguay. We acknowledge the relevance of this process and agree that its quantification would represent a valuable step toward a more comprehensive understanding of freshwater inputs to the coastal ocean. Nonetheless, the available evidence and regional hydrographic context sug- gest that large-scale physical mechanisms—specifically the advection of the Río de la Plata Plume (RPP) and wind-driven circulation—remain the dominant controls of salinity variability at La Paloma. While SGD may locally modulate background conditions, current data do not support its role as a primary driver. We view this discussion as a constructive step toward motivating future field measurements and modeling efforts to better assess groundwater–ocean interactions along the Uruguayan coast.