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

Overview of the MOSAiC expedition – Snow and Sea Ice

Marcel Nicolaus1, Donald Perovich2, and the MOSAiC Snow and Sea Ice Team*
Marcel Nicolaus and Donald Perovich and the MOSAiC Snow and Sea Ice Team
  • 1Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany (
  • 2Dartmouth College, Hanover, NH, USA
  • *A full list of authors appears at the end of the abstract

Year-round observations of the properties and processes that govern the ice pack and its interaction with the atmosphere and the ocean were the key element of the MOSAiC field experiment. The aim was to completely characterize the properties of the snow and ice cover across different spatial scales over an entire annual cycle. This was done by monitoring snow and ice mass balance, observing the evolving energy budget, studying dynamical features, and by documenting snow and ice dynamics over nested spatial scales. We conducted in-situ observations at multiple scales, which will be integrated in numerical models and remote sensing methods. Overall, we performed the most comprehensive snow and sea ice program to date. Here, we summarize the observational snow and sea ice program during the drift from October 2019 to September 2020. We will present improved concepts and diagnostics of the field program and show relationships to satellite retrievals and numerical models. We will highlight individual events and characteristics of the snow and ice pack during the different seasons based on time-series that were obtained from numerous sea-ice programs of the MOSAiC ICE team. We will discuss the various activities with respect to the coupled system and the life cycle of sea ice along the transpolar drift.

MOSAiC Snow and Sea Ice Team:

Philipp Anhaus, Stefanie Arndt, Jakob Belter, Gerit Birnbaum, David Clemens-Sewall, Ruzica Dadic, Oguz Demir, Dmitry Divine, Steven Fons, Mats Granskog, Jari Haapala, Christian Haas, Henna-Reetta Inkeri Hannula, Stefan Hendricks, Knut Vilhelm Høyland, Marcus Huntemann, Jenny Hutchings, Byongjun Hwang, Polona Itkin, Matthias Jaggi, Arttu Jutila, Lars Kaleschke, Christian Katlein, Nikolay Kolabutin, Daniela Krampe, Thomas Krumpen, Nathan Kurtz, Benjamin Allen Lange, Ruibo Lei, Bonnie Light, Felix Linhard, Amy Macfarlane, Mallik Mahmud, Ilkka Matero, Reza Naderpour, Vishnu Nandan, Marcel Nicolaus, Alexey Niubom, Marc Oggier, Natascha Oppelt, Falk Pätzold, Donald K. Perovich, Roberta Pirazzini, Christopher Polashenski, Ian Raphael, Julia Regnery, Robert Ricker, Jan Rohde, Evgenii Salganik, Martin Schiller, Martin Schneebeli, Igor Sheikin, Egor Shimanchuk, Madison Smith, Gunnar Spreen, Julienne Stroeve, Aikaterini Tavri, Linda Thielke, Rasmus Tage Tonboe, Michel Tsamados, Luisa von Albedyll, David Wagner, Daniel Watkins, Melinda Webster

How to cite: Nicolaus, M. and Perovich, D. and the MOSAiC Snow and Sea Ice Team: Overview of the MOSAiC expedition – Snow and Sea Ice, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-10136,, 2021.

Corresponding presentation materials formerly uploaded have been withdrawn.