An assessment of the added value from data assimilation on modelled Nordic Seas hydrography and ocean transports
| Autor: | Francois Counillon, Matthieu Chevallier, Gilles Garric, Henning Wehde, Einar Svendsen, Laurent Bertino, Morten D. Skogen, Vidar S. Lien, Solfrid Sætre Hjøllo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Marine conservation Atmospheric Science 010504 meteorology & atmospheric sciences Meteorology Oceanography 01 natural sciences Data assimilation Hotspot (geology) Added value Computer Science (miscellaneous) Nordic Seas 14. Life underwater 0105 earth and related environmental sciences Norwegian Sea VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Oseanografi: 452 010604 marine biology & hydrobiology Ocean modelling Model comparison Atlantic Water Geotechnical Engineering and Engineering Geology Ocean reanalysis 13. Climate action Sustainable management Climatology Operational framework Volume transport Environmental science Hydrography VDP::Mathematics and natural scienses: 400::Geosciences: 450::Oceanography: 452 |
| Zdroj: | Ocean Modelling |
| Popis: | The Nordic Seas is a hotspot both in terms of climate related processes, such as Atlantic–Arctic heat exchange, and natural marine resources. A sustainable management of the marine resources within the Nordic Seas, including the co-existence between fisheries and petroleum industries, requires detailed information on the state of the ocean within an operational framework and beyond what is obtainable from observations only. Numerical ocean models applying data assimilation techniques are utilized to address this need. Subsequently, comprehensive comparisons between model results and observations are required in order to assess the model performance. Here, we apply a set of objective statistics to quantitatively assess the added value of data assimilation in numerical ocean models that are currently used operationally. The results indicate that the inclusion of data assimilation improves the model performance both in terms of hydrographic properties and volume and heat transports. Furthermore, we find that increasing the resolution towards eddy resolving resolution performs similarly to coarser resolution models applying data assimilation in shelf areas. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|