Ongoing Projects

Arctic +

Earth Observation Impact Assessment (A+5)

EcoLight - Ecosystem functions controlled by sea ice and light in a changing Arctic

To be able to predict the physical conditions for the Arctic ecosystem in the ‚new Arctic‘, it is necessary to understand and parametrise the processes which determine the light and enery budget under the sea ice and snow under ‘first year ice’ conditions. For this we need a holistic approach that combines biology, optics, seaice and ocean physics, based on direct observations and remotely sensed information with numerical modelling. This is the overall goal of the joint project (with AWI, BAS and UCL) to which OASys contributes.

FreshArc - Arctic freshwater export through Fram Strait in an era of Arctic Ocean freshening and sea ice thinning

One of the key questions within present-day climate research is: has Arctic Ocean freshwater export to the North Atlantic increased? Knowledge of the Arctic freshwater export and its drivers is essential since anomalies in freshwater have the capacity to modify the Atlantic Meridional Overturning Circulation strength and therewith our present-day mild climate in western Europe. The proposed research will investigate modern variability and trends in the freshwater export from the Arctic through Fram Strait. A unique and fundamentally improved observationally-based baseline of total freshwater export including both oceanic freshwater and sea ice will be developed. This project will investigate the response of the Arctic Ocean freshwater export to the fast changes in the Arctic Ocean, sea ice and atmospheric circulation that have occurred in the last two decades. An integral approach is taken by combining high-resolution in-situ oceanographic and sea ice measurements, remote sensing products, atmospheric reanalysis, and output from a coupled sea ice-ocean model. New, high-quality data collected by innovative instrumentation installed on the moorings in this project will improve the earlier freshwater estimates and reduce errors significantly. The results of this research will deliver important new insights of the implications of Arctic climate change for the mid latitudes.


Key Environmental monitoring for Polar Latitudes and European Readiness EU H2020 funded project 2019-2020


Using Tracers, Atmospheric Indices and Model Output to explain changes in the Arctic Ocean Inflow and Outflow through Fram Strait.

Terminated Projects


The Arctic Ocean Model Intercomparison Project (AOMIP) is an international effort to identify systematic errors in Arctic Ocean models under realistic forcing.

ARCRISK (2009-2014)

Arctic Health Risks: Impacts on health in the Arctic and Europe owing to climate-induced changes in contaminant cycling

Arctic Model Intercomparison MITgcm - NAOSIM

As a subcontract for the Stiftung Alfred Wegener Institute for Polar and Marine Research (AWI), O.A.Sys performs an intercomparison of two Arctic/North Atlantic versions of the MITcgm and the NAOSIM. The work is a contribution to the project 'The North Atlantic as Part of the Earth System: From System Comprehension to Analysis of Regional Impacts' funded by the German Ministry for Research and Education.

DAMOCLES (2005-2010)

Developing Arctic Modelling and Observing Capabilities for Longterm Environmental Studies.


A dynamic WWW-based Data Visualization and Download Interface.


Data Assimilation Through Upscaling and Nudging.


The follow-up project of AOMIP, the 'Forum for Arctic Ocean Modeling and Observational Synthesis (FAMOS)', is an international effort to focus on enhancing collaboration and coordination among arctic marine and sea ice modelers, theoreticians and observationalists based on a set of activities starting from generating hypotheses, to planning research included both observations and modeling, and to finalizing analyses synthesizing major results from the field studies and coordinated numerical experiments.

Hydrology Futures

Consulting for and collaboration with Hydrology Futures, LLC based in Seattle, WA, USA.


ICE-ARC (Ice, Climate, Economics – Arctic Research on Change) FP-7 EU.


ICE-ARC (Ice, Climate, Economics – Arctic Research on Change) FP-7 EU.


Ice2sea is a programme of scientific research to quantify the contribution of global ice to sea-level rise in order to produce better estimates of its extent over the next century.


Eisvorhersage und Eis-Routen-Optimierung (Ice Forecast and Route Optimization)

SEARCH for DAMOCLES (S4D) (2006-2010)

SEARCH for DAMOCLES (S4D) aims at a coordination of major European (DAMOCLES) and US (SEARCH) Arctic research activities during the International Polar Year (2007-2008).


Preparation of an expertise on radioactive substances in the marine environment for the GSF/BfS as support for a German contribution to the UNSCEAR REPORT 2006