Asset Details
Do you wish to reserve the book?
A chlorophyll halo over Maud Rise in the Southern Ocean
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A chlorophyll halo over Maud Rise in the Southern Ocean
Do you wish to request the book?
A chlorophyll halo over Maud Rise in the Southern Ocean
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A chlorophyll halo over Maud Rise in the Southern Ocean
2025
Overview
Phytoplankton blooms above the seamount Maud Rise in the Antarctic Ocean have been reported but their emerging mechanisms and their importance for the wider Southern Ocean are not well known. We use satellite data spanning over the last two decades and in-situ data collected from a ship, an underwater glider and Biogeochemical-Argo profiling floats to understand the processes involved in the formation of Maud Rise phytoplankton blooms. We find that the seamount generates upwelling of warm deep water that transports heat, and likely dissolved iron, to the surface via diapycnal mixing. This creates a recurring annular structure of chlorophyll concentration (or chlorophyll halo) in correspondence with the previously observed warm water and sea ice halo over Maud Rise. The in-situ observations reveal integrated chlorophyll-a concentrations of up to 100 mg·m
−2
, which suggests exceptionally high phytoplankton biomass within the Southern Ocean, thus making the seamount a regional phytoplankton hotspot.
Annular phytoplankton blooms over the seamount Maud Rise in the Antarctic Ocean are linked with the presence of heat and dissolved iron upwelled from the deep sea through interactions between the ocean circulation and the topography of the seamount.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
