Essays about: "Weddell Sea"

Found 4 essays containing the words Weddell Sea.

  1. 1. The atmospheric effects of Southern Ocean open-ocean polynyas onto the coastal polynyas from EC-Earth3

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Jakob Gunnarsson; [2023-05-10]
    Keywords : ;

    Abstract : Polynyas are recurring areas of open water or thin ice within the sea ice pack, which alter the local oceanatmosphere heat and moisture exchange. They are differentiated as coastal (latent heat) or open-ocean (sensible heat) polynya according to their formation process. READ MORE

  3. 2. Methane Sulphonic Acid in East Antarctic Coastal Firn and Ice Cores and Its Relationship with Chlorophyll-a and Sea Ice Extent in the Southern Ocean

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Emma Nilsson; [2022]
    Keywords : methane sulphonic acid; firn cores; sea ice proxy; marine primary productivity; Fimbul Ice Shelf; Dronning Maud Land; metansulfonsyra; firnkärnor; havsis-proxy; marin primärproduktion; Fimbulisen; Dronning Maud Land;

    Abstract : The seasonal retreat of sea ice in the austral spring and summer around Antarctica has a significant effect on phytoplankton activity, mainly due to light availability, meltwater input of dissolved iron, and surface water stratification. Phytoplankton produce dimethylsulfoniopropionate, the precursor to the climate-cooling gas dimethyl sulphide, which is ventilated to the atmosphere and oxidised to methane sulphonic acid (MSA). READ MORE

  4. 3. Invasive species in Weddell Sea : Effects on food web structure

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Inger-Marie Wohlfarth; [2020]
    Keywords : Centrality; Climate change; Food webs; Google PageRank; Invasive species; Structure; Weddell Sea;

    Abstract : The cold water of Antarctica has a unique endemic fauna, where durophagous predators are rare or absent. Due to climate change the water is heating up and the predators have begun to return to the Southern Ocean, which could bring a lot of changes to the food web. There is a high risk it will lead to losses in the unique marine fauna of Antarctica. READ MORE

  5. 4. Searching for atmospheric signals in states of low Antarctic sea ice concentration

    University essay from Stockholms universitet/Meteorologiska institutionen (MISU)

    Author : Aiden Jönsson; [2018]
    Keywords : Sea ice; atmospheric circulation; Antarctic; polar; moisture transport;

    Abstract : The Antarctic sea ice region is relatively stable in extent from year to year and sees little long-term variability, the primary driver for its seasonal advance and retreat being the seasonal changes in advection of heat through the atmosphere. However, observations show a slight positive trend in its extent over recent decades. READ MORE