EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

High resolution mapping of the Arctic Ocean deepest area: Molloy Hole

Roberta Ivaldi1, Maurizio Demarte1, Massimiliano Nannini1, Giuseppe Aquino2, Cosimo Brancati1, Massimo Ercolani2, Agnese Fares1, Matteo Guideri1, Luca Labella2, Mauro Marro1, Federica Maurantonio2, Roberto Nardini1, and Alberto Niccolini2
Roberta Ivaldi et al.
  • 1Italian Hydrographic Institute, IT-Navy, Genoa, Italy (
  • 2IT-Navy, Rome, Italy

New hydro-oceanographic data were collected in the Arctic Ocean during HIGN NORTH20 marine geophysical campaign performed in July 2020, in a COVID-19 pandemic period. HIGH NORTH20 was developed as part of the IT-Navy HIGH NORTH program, a Pluriannual Joint Research Program in the Arctic devoted to contribute to oceans knowledge in order to ensure ocean science improving conditions for sustainable development of the Ocean in the aim of United Nations Decade of Ocean Science for Sustainable development and the GEBCO - SEABED 2030 project. In order to contribute in exploration and high-resolution seabed mapping new data was collected using a multibeam echosounder (EM 302 - 30 kHz). The particular sea ice environmental condition with open-sea allowed to survey and mapping the Molloy Hole, the deepest sector of the Arctic Ocean, a key area in the global geodynamics and oceanographic context. A 3D model of the Molloy Hole (804 km2) and the detection of the deepest seafloor (5567m - 79° 08.9’ N 002° 47.0’ E) was obtained with a 10x10m grid in compliance to the IHO standards.

How to cite: Ivaldi, R., Demarte, M., Nannini, M., Aquino, G., Brancati, C., Ercolani, M., Fares, A., Guideri, M., Labella, L., Marro, M., Maurantonio, F., Nardini, R., and Niccolini, A.: High resolution mapping of the Arctic Ocean deepest area: Molloy Hole, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-16227,, 2021.


Display file

Comments on the display

to access the discussion