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#upwelling — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #upwelling, aggregated by home.social.

  1. Panama’s Missing Pacific Upwelling

    Strong seasonal winds blowing from the Atlantic typically push water away from Panama’s Pacific coast, allowing deeper, colder waters to rise up. This upwelling cools reefs and feeds phytoplankton blooms, both of which support the rich marine life found there. But in early 2025, the upwelling didn’t occur.

    Normally, coastal ocean temperatures drop to about 19 degrees Celsius during upwelling. Instead, temperatures only reached 23.3 degrees at their coolest. Wind seems to be the missing ingredient: winds from the Atlantic side were short-lived and 74% less frequent than in typical years.

    That lack of upwelling is expected to carry consequences to Panama’s economy. About 95% of the country’s fishing catch comes from the Pacific side, so any drop in fish populations will be felt. The open question remains: was the missing upwelling a singular extreme event or a harbinger of a new normal? (Image credit: R. Heuvel; research credit: A. O’Dea et al.; via Eos)

    #atmosphericScience #fluidDynamics #oceanography #physics #planetaryScience #science #upwelling
  2. Tausende tote Fische an den Stränden rund um Rostock - untersucht werden Fisch- und Wasserproben aus der betroffenen Region auch am Thünen-Institut für Ostseefischerei.
    Institutsleiter Christopher Zimmermann erklärt im Interview mit dem NDR, welche Ursache für die toten Tiere vermutet wird, was das Sterben für die Fischbestände bedeutet und ob eine Gefahr für Badende besteht.
    ndr.de/nachrichten/mecklenburg

    #Ostsee #Upwelling

  3. ‼️ Im Golf von Panama blieb 2025 erstmals seit Beginn der Aufzeichnungen das saisonale #Upwelling aus.

    Normalerweise fördern Küstenwinde von Januar bis April kaltes, nährstoffreiches Wasser an die Oberfläche.

    Ursache für das Ausbleiben war schwächere #Passatwind-Aktivität. #Satellitendaten zeigen deutlich erhöhte #Oberflächentemperaturen.

    copernicus.eu/en/media/image-d

    #Klimawandel #Meeresdaten #Küstenregionen #Copernicus #Wasserqualität #Erdbeobachtung

  4. CW: An Annual Blast of Pacific Cold Water Did Not Occur, Alarming Scientists


    Each year between January and April, a blob of cold water rises from the depths of the #GulfOfPanama to the surface, playing an essential role in supporting #marine life in the region. But this year, it never arrived.

    When the #tradeWinds reach the Gulf of Panama they push hot surface water away from the coast, which makes room for cold water to rise from the deep.

    #upwelling #coldBlob
    nytimes.com/2025/09/12/climate

  5. The Southern Ocean upwelling is a mecca for #whales and #tuna that’s worth celebrating and protecting theconversation.com/the-southe

    "The Great Southern Australian Coastal #Upwelling System is an upward current of water over vast distances along #Australia’s southern coast. It brings nutrients from deeper waters to the surface. This nutrient-rich water supports a rich #ecosystem that attracts iconic species like the southern #BluefinTuna and #BlueWhale"