OSSE for a sustainable marine observing network in the Sea of Marmara
<p>An observing system simulation experiment (OSSE) is presented in the Sea of Marmara. A high-resolution ocean circulation model (FESOM) and an ensemble data assimilation tool (DART) are coupled. The OSSE methodology is used to assess the possible impact of a FerryBox network in the easte...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-07-01
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| Series: | Nonlinear Processes in Geophysics |
| Online Access: | https://www.nonlin-processes-geophys.net/25/537/2018/npg-25-537-2018.pdf |
| Summary: | <p>An observing system simulation experiment (OSSE) is
presented in the Sea of Marmara. A high-resolution ocean circulation model
(FESOM) and an ensemble data assimilation tool (DART) are coupled. The OSSE
methodology is used to assess the possible impact of a FerryBox network in
the eastern Sea of Marmara. A reference experiment without assimilation is
performed. Then, synthetic temperature and salinity observations are
assimilated along the track of the ferries in the second experiment. The
results suggest that a FerryBox network in the Sea of Marmara has potential to
improve the forecasts significantly. The salinity and temperature errors get
smaller in the upper layer of the water column. The impact of the
assimilation is negligible in the lower layer due to the strong
stratification. The circulation in the Sea of Marmara, particularly the
Bosphorus outflow, helps to propagate the error reduction towards the western
basin where no assimilation is performed. Overall, the proposed FerryBox
network can be a good start to designing an optimal sustained marine observing
network in the Sea of Marmara for assimilation purposes.</p> |
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| ISSN: | 1023-5809 1607-7946 |