Satellite remote sensing reveals coastal upwelling events in the San Matías Gulf, northern Patagonia

The study identifies coastal upwelling events in the western San Matías Gulf, Argentina, noting approximately six upwelling-favorable wind events per year during the austral summer. Satellite sea surface temperature (SST) data confirmed upwelling in 85% of cases between 2000 and 2008, with specific events showing cold water bands approximately 10 km wide and 100 km long. In-situ data indicates that along-shore wind stress is the dominant process controlling high-frequency near-shore temperature fluctuations.

• In the western San Matías Gulf, approximately six upwelling-favorable wind events occur annually during the austral summer, with satellite-derived sea surface temperature (SST) data confirming upwelling in 85% of cases between 2000 and 2008.
• Specific upwelling events can create narrow coastal bands of cold water approximately 10 km wide and 100 km long, with temperatures 1.5 °C lower than offshore waters; a single intense event can move approximately 10^10 m3 of water to the surface.
• Along-shore wind stress is the primary driver of high-frequency near-shore temperature fluctuations, with a wind impulse of − 10^4 kg m− 1 s− 1 required to generate low SST bands.

APA

Inter-American Institute for Global Change Research (2025). Satellite remote sensing reveals coastal upwelling events in the San Matías Gulf, northern Patagonia. https://iai.int/es/pub_acad/satellite-remote-sensing-reveals-coastal-upwelling-events-in-the-san-matias-gulf-northern-patagonia/

Chicago

Inter-American Institute for Global Change Research. Satellite remote sensing reveals coastal upwelling events in the San Matías Gulf, northern Patagonia. 2025. https://iai.int/es/pub_acad/satellite-remote-sensing-reveals-coastal-upwelling-events-in-the-san-matias-gulf-northern-patagonia/.

Wikipedia

{{cite report |author=Inter-American Institute for Global Change Research |title=Satellite remote sensing reveals coastal upwelling events in the San Matías Gulf, northern Patagonia |date=16 January 2025 |url=https://iai.int/es/pub_acad/satellite-remote-sensing-reveals-coastal-upwelling-events-in-the-san-matias-gulf-northern-patagonia/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{interamericaninstituteforglobalchangeresearch2025satellite, author = {{Inter-American Institute for Global Change Research}}, title = {{Satellite remote sensing reveals coastal upwelling events in the San Matías Gulf, northern Patagonia}}, institution = {Inter-American Institute for Global Change Research}, year = {2025}, month = jan, url = {https://iai.int/es/pub_acad/satellite-remote-sensing-reveals-coastal-upwelling-events-in-the-san-matias-gulf-northern-patagonia/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }