Asymmetric distribution of Pan-Antarctic snowmelt under changing Climate: In perspective of natural climatic events and marine biology

Understanding global climatic changes resulting from global warming and their impact on polar snowmelt and ocean biogeochemistry requires an assessment of the spatio-temporal variability of surface ice melt over the Antarctica region. Even though various studies have been carried out on the ice melts in the Antarctica region, there is a lack of study related to biophysical (temperature and chlorophyll-a) parameters and El Nino-Southern Oscillation (ENSO) influences in the Antarctica region. To address this problem, the present study assessed the ice melt and its impact on the Antarctica region from 2002 to 2021 using satellite-derived products of sea surface temperature (SST), chlorophyll-a (Chl), and snowmelt.

SSM

Fig. SMF and its deviation during high La Nina (2010–2011) and high El Nino (2015–2016) years

After analyzing the data, it shows that larger ice shelves like Larsen, George VI, Brunt, RiserLarsen on the western side and Shackleton, West and Totten on the eastern side are showing higher snowmelt than usual in a strong La Nina year (2010–2011), while other ice shelves are showing a reduction in snowmelt. Snowmelt products are taken from NICES. Click here to Read More