Barents Sea Arctic Cenozoic Evolution and Paleogeographical Reconstructions

Projektinformationen

BRAVO

ID Finanzhilfevereinbarung: 101102324

DOI

10.3030/101102324

EK-Unterschriftsdatum 14 März 2023

Startdatum 1 September 2023

Enddatum 30 November 2026

Finanziert unter

• Marie Skłodowska-Curie Actions (MSCA)

Gesamtkosten

Keine Daten

EU-Beitrag

€ 306 232,80

Koordiniert durch

UNIVERSITETET I OSLO
Norway

Periodic Reporting for period 1 - BRAVO (Barents Sea Arctic Cenozoic Evolution and Paleogeographical Reconstructions)

Berichtszeitraum: 2023-09-01 bis 2025-08-31

Zusammenfassung vom Kontext und den Gesamtzielen des Projekts

Gateways, seaways, and passages are conduits that connect ocean basins and are crucial features for ocean circulation patterns, today and in the past. Furthermore, oceans are significant drivers of climate change via heat and moisture transport, as reported via global CO2 and O2 levels. Therefore, reconstructing high-quality paleobathymetry-topography is important to produce reliable ocean circulation and climatic models for our scientific community and wider society. The Barents Seaway is an underexplored ocean gateway that played a key role in modulating global climate and ocean circulation patterns in the Cenozoic (the last 66 Myr). A data-driven constraint on timing and geometry of this gateway will provide robust climatic and oceanographic models that are crucial for projecting past climate change to the present and future. BRAVO’s ambition is to provide the most reliable paleobathymetric-topographic reconstruction of the Barents Seaway for the Cenozoic. BRAVO’s results will be self-consistent 4D Earth models (space and time) of paleobathymetry-topography of the Barents Seaway and corresponding sedimentary pathways and accumulation. BRAVO’s research theme on Arctic climate change is aligned well with the recent EU policy on a stronger engagement for a sustainable Arctic and climate.

Arbeit, die ab Beginn des Projekts bis zum Ende des durch den Bericht erfassten Berichtszeitraums geleistet wurde, und die wichtigsten bis dahin erzielten Ergebnisse

1. Paleogeographical modelling using GPlates. We've used publicly available paleogeography and extracted their plate movement directions and velocities. In some cases, we also modified them to match with general understanding of regional and local tectonic development using GMT scripts.

2. Source-to-sink modelling using Badlands. We imported those paleogeography sets to Badlands software. Then, we set other source-to-sink parameters, such as sea level curve, sediment diffusion parameters and tectonic/subsidence uplift rate. The simulation results were then compared with seismic dataset.

Fortschritte, die über den aktuellen Stand der Technik hinausgehen und voraussichtliche potenzielle Auswirkungen (einschließlich der bis dato erzielten sozioökonomischen Auswirkungen und weiter gefassten gesellschaftlichen Auswirkungen des Projekts)

The coupling between GPlates and Badlands software is the first development of its kind. This allows for a sediment dispersal simulation in continuously moving plate margins.