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Application of data assimilation to ocean and climate prediction
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bell, Michael J. Martin, Matthew Jeffrey Nichols, Nancy K. |
| Copyright Year | 2015 |
| Abstract | Ocean prediction systems are now able to analyse and predict temperature, salinity and velocity structures within the ocean by assimilating measurements of the ocean’s temperature and salinity into physically based ocean models. Data assimilation combines current estimates of state variables, such as temperature and salinity, from a computational model with measurements of the ocean and atmosphere in order to improve forecasts and reduce uncertainty in the forecast accuracy. Data assimilation generally works well with ocean models away from the equator but has been found to induce vigorous and unrealistic overturning circulations near the equator. A pressure correction method was developed at the University of Reading and the Met Office to control these circulations using ideas from control theory and an understanding of equatorial dynamics. The method has been used for the last 10 years in seasonal forecasting and ocean prediction systems at the Met Office and European Center for Medium-range Weather Forecasting (ECMWF). It has been an important element in recent re-analyses of the ocean heat uptake that mitigates climate change. Michael J Bell Met Office, Fitzroy Road, Exeter, EX1 3PB UK e-mail: mike.bell@metoffice.gov.uk Matthew J Martin Met Office, Fitzroy Road, Exeter, EX1 3PB UK e-mail: matthew.martin@metoffice.gov.uk Nancy K Nichols University of Reading, School of Mathematical and Physical Sciences, PO Box 220, Whiteknights, Reading, RG6 6AX UK e-mail: n.k.nichols@reading.ac.uk 1 To be published in: UK Success Stories in Industrial Mathematics, (eds P. Aston, A. Mulholland, and K. Tant), Springer International Publishing AG, 2016. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.reading.ac.uk/web/files/maths/Preprint_MPS_15_10_Nichols.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Blood Circulation Computational model Control theory Data assimilation Email Estimated How True Feel Vigorous Right Now Nichols plot Projections and Predictions Science Scientific Publication Silk Road Springer (tank) Velocity (software development) ginsenoside Rg6 |
| Content Type | Text |
| Resource Type | Article |
