Articles | Volume 11, issue 2
https://doi.org/10.5194/gmd-11-681-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/gmd-11-681-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
AMM15: a new high-resolution NEMO configuration for operational simulation of the European north-west shelf
Jennifer A. Graham
CORRESPONDING AUTHOR
Met Office, FitzRoy Road, Exeter, EX1 3PB, UK
now at: Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT, UK
Enda O'Dea
Met Office, FitzRoy Road, Exeter, EX1 3PB, UK
Jason Holt
National Oceanography Centre, Liverpool, L3 5DA, UK
Jeff Polton
National Oceanography Centre, Liverpool, L3 5DA, UK
Helene T. Hewitt
Met Office, FitzRoy Road, Exeter, EX1 3PB, UK
Rachel Furner
Met Office, FitzRoy Road, Exeter, EX1 3PB, UK
Karen Guihou
National Oceanography Centre, Liverpool, L3 5DA, UK
Departamento Oceanografía, Servicio de Hidrografía Naval, Buenos Aires, Argentina
Ashley Brereton
National Oceanography Centre, Liverpool, L3 5DA, UK
Alex Arnold
Met Office, FitzRoy Road, Exeter, EX1 3PB, UK
Sarah Wakelin
National Oceanography Centre, Liverpool, L3 5DA, UK
Juan Manuel Castillo Sanchez
Met Office, FitzRoy Road, Exeter, EX1 3PB, UK
C. Gabriela Mayorga Adame
National Oceanography Centre, Liverpool, L3 5DA, UK
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A new environmental modelling system has been developed to represent the effect of feedbacks between atmosphere, land, and ocean in the Indian region. Different approaches to simulating tropical cyclones Titli and Fani are demonstrated. It is shown that results are sensitive to the way in which the ocean response to cyclone evolution is captured in the system. Notably, we show how a more rigorous formulation for the near-surface energy budget can be included when air–sea coupling is included.
Jennifer Saxby, Julia Crook, Simon Peatman, Cathryn Birch, Juliane Schwendike, Maria Valdivieso da Costa, Juan Manuel Castillo Sanchez, Chris Holloway, Nicholas P. Klingaman, Ashis Mitra, and Huw Lewis
Weather Clim. Dynam. Discuss., https://doi.org/10.5194/wcd-2021-46, https://doi.org/10.5194/wcd-2021-46, 2021
Preprint withdrawn
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This study assesses the ability of the new Met Office IND1 numerical model to simulate tropical cyclones and their associated hazards, such as high winds and heavy rainfall. The new system consists of both atmospheric and oceanic models coupled together, allowing us to explore the sensitivity of cyclones to important air–sea feedbacks. We find that the model can accurately simulate tropical cyclone position, structure, and intensity, which are crucial for predicting and mitigating hazards.
Rachel Furner, Peter Haynes, Dave Munday, Brooks Paige, Daniel C. Jones, and Emily Shuckburgh
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2021-132, https://doi.org/10.5194/gmd-2021-132, 2021
Revised manuscript not accepted
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Traditional weather & climate models are built from physics-based equations, while data-driven models are built from patterns found in datasets using Machine Learning or statistics. There is growing interest in using data-driven models for weather & climate prediction, but confidence in their use depends on understanding the patterns they're finding. We look at this with a simple regression model of ocean temperature and see the patterns found by the regression model are similar to the physics.
Cited articles
Aslam, T., Hall, R. A., and Dye, S. R.: Internal tides in a dendritic submarine canyon, Prog. Oceanogr., https://doi.org/10.1016/j.pocean.2017.10.005, in press, 2017.
Badin, G., Williams, R. G., Holt, J. T., and Fernand, L. J.: Are mesoscale eddies in shelf seas formed by baroclinic instability of tidal fronts?, J. Geophys. Res., 114, C10021, https://doi.org/10.1029/2009JC005340, 2009.
Batstone, C., Lawless, M., Tawn, J., Horsburgh, K., Blackman, D., McMillan, A., Worth, D., Laeger, S., and Hunt, T.: A UK best-practice approach for extreme sea level analysis along complex topographic coastlines, Ocean Eng., 71, 28–39, https://doi.org/10.1016/j.oceaneng.2013.02.003i, 2013.
Beckmann, A. C. and Döscher, R.: A Method for Improved Representation of Dense Water Spreading over Topography in Geopotential-Coordinate Models, J. Phys. Oceanogr., 27, 581–591, 1997.
Belcher, S., Grant, A., Hanley, K., Fox-Kemper, B., Van Roekel, L., Sullivan, P., Large, W., Brown, A., Hines, A., Calvert, D., Rutgersson, A., Pettersson, H., Bidlot, J.-R., Janssen, P., and Polton, J.: A global perspective on Langmuir turbulence in the ocean surface boundary layer, Geophys. Res. Lett., 39, L18605, https://doi.org/10.1029/2012gl052932, 2012.
Bricheno, L. M., Wolf, J. M., and Brown, J. M.: Impacts of high resolution model downscaling in coastal regions, Cont. Shelf Res., 87, 7–16, 2014.
Cameron, W. M. and Pritchard, D. W.: Estuaries, in: The Sea, edited by: Hill, M. N., John Wiley and Sons, New York, 2, 306–324, 1963.
Craig, P. D. and Banner, M. L.: Modeling wave-enhanced turbulence in the ocean surface layer, J. Phys. Oceanogr., 24, 2546–2559, 1994.
Dee, D., Uppala, S., Simmons, A., Berrisford, P., Poli, P., Kobayashi, S., Andrae, U., Balmaseda, M., Balsamo, G., Bauer, P., et al.: The ERA-Interim reanalysis: Configuration and performance of the data assimilation system, Q. J. Roy. Meteor. Soc., 137, 553–597, 2011.
Donnelly, C., Andersson, J. C., and Arheimer, B.: Using flow signatures and catchment similarities to evaluate the E-HYPE multi-basin model across Europe, Hydrological Sciences Journal, 2015.
Dye, S., Hughes, S., Tinker, J., Berry, D., Holliday, N., Kent, E., Kennington, K., Inall, M., Smyth, T., Nolan, G., Lyons, K., Andres, O., and Beszczynska-Moller, A.: Impacts of climate change on temperature (air and sea), MCCIP Science Review, 112, 1–12, https://doi.org/10.14465/2013.arc01.001-012, 2013a.
Dye, S. R., Holliday, N. P., Hughes, S. L., Inall, M., Kennington, K., Smyth, T., Tinker, J., Andres, O., and Beszczynska-Moller, A.: Climate change impacts on the waters around the UK and Ireland: Salinity, MCCIP Science Review, 112, 60–66, https://doi.org/10.14465/2013.arc07.060-066, 2013b.
Egbert, G. D. and Erofeeva, S. Y.: Efficient inverse modeling of barotropic ocean tides, J. Atmos. Ocean. Tech., 19, 183–204, https://doi.org/10.1175/1520-0426(2002)019<0183:EIMOBO>2.0.CO;2, 2002.
Flather, R. A.: Results from a model of the northeast Atlantic relating to the Norwegian coastal current, in: The Norwegian Coastal Current, edited by Saetre, R. and Mork, M., University of Bergen, Norway, 427–458, 1981.
Galperin, B., Kantha, L., Hassid, S., and Rosati, A.: A quasi-equilibrium turbulent energy model for geophysical flows, J. Atmos. Sci., 45, 55–62, 1988.
Good, S. A., Martin, M. J., and Rayner, N. A.: EN4: Quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates, J. Geophys. Res.-Oceans, 118, 6704–6716, https://doi.org/10.1002/2013JC009067, 2013.
Graham, J. A.: NEMO namelist for AMM15 [Data set], https://doi.org/10.13140/RG.2.2.27237.40164, 2017.
Gräwe, U., Holtermann, P., Klingbeil, K., and Burchard, H.: Advantages of vertically adaptive coordinates in numerical models of stratified shelf seas, Ocean Model., 92, 56–68, https://doi.org/10.1016/j.ocemod.2015.05.008, 2015.
Guihou, K., Polton, J., Harle, J., Wakelin, S., O'Dea, E., and Holt, J.: Kilometric scale modelling of the North West European shelf seas: exploring the spatial and temporal variability of internal tides, J. Geophys. Res.-Oceans, 122, https://doi.org/10.1002/2017JC012960, 2017.
Holt, J. and Proctor, R.: The seasonal circulation and volume transport on the northwest European continental shelf: A fine-resolution model study, J. Geophys. Res., 113, C06021, https://doi.org/10.1029/2006JC004034, 2008.
Holt, J. and Umlauf, L.: Modelling the tidal mixing fronts and seasonal stratification of the Northwest European Continental shelf, Cont. Shelf Res., 28, 887–903, https://doi.org/10.1016/j.csr.2008.01.012, 2008.
Holt, J., Hughes, S., Hopkins, J., Wakelin, S. L., Holliday, N. P., Dye, S., Gonzalez-Pola, C., Hjollo, S. S., Mork, K. A., Nolan, G., Proctor, R., Read, J., Shammon, T., Sherwin, T., Smyth, T., Tattersall, G., Ward, B., and Wiltshire, K. H.: Multi-decadal variability and trends in the temperature of the northwest European continental shelf: A model-data synthesis, Prog. Oceanogr., 106, 96–117, https://doi.org/10.1016/j.pocean.2012.08.001, 2012.
Holt, J., Hyder, P., Ashworth, M., Harle, J., Hewitt, H. T., Liu, H., New, A. L., Pickles, S., Porter, A., Popova, E., Allen, J. I., Siddorn, J., and Wood, R.: Prospects for improving the representation of coastal and shelf seas in global ocean models, Geosci. Model Dev., 10, 499–523, https://doi.org/10.5194/gmd-10-499-2017, 2017.
Jackson, L. C., Peterson, K. A., Roberts, C. D., and Wood, R. A.: Recent slowing of Atlantic overturning circulation as a recovery from earlier strengthening, Nat. Geosci., 9, 518–522, https://doi.org/10.1038/ngeo2715, 2016.
Large, W. G. and Yeager, S. G.: The global climatology of an interannually varying air–sea flux data set, Clim. Dynam., 33, 341–364, 2009.
Lawrence, B. N., Bennett, V. L., Churchill, J., Juckes, M., Kershaw, P., Pascoe, S., Pepler, S., Pritchard, M., and Stephens, A.: Storing and manipulating environmental big data with JASMIN, in: 2013 IEEE International Conference on Big Data, Silicon Valley, CA, USA, 6–9 October 2013, 68–75, https://doi.org/10.1109/BigData.2013.6691556, 2013.
Lengaigne, M., Menkes, C., Aumont, O., Gorgues, T., Bopp, L., André, J.-M., and Madec, G.: Influence of the oceanic biology on the tropical Pacific climate in a coupled general circulation model, Clim. Dynam., 28, 503–516, https://doi.org/10.1007/s00382-006-0200-2, 2007.
Levier, B., Tréguier, A. M., Madec, G., and Garnier, V.: Free surface and variable volume in the NEMO code, IFREMER, Brest, France, MESRSEA IP report WP09-CNRS-STR03-1A, 2007.
Lewis, H. W., Castillo Sanchez, J. M., Graham, J., Saulter, A., Bornemann, J., Arnold, A., Fallmann, J., Harris, C., Pearson, D., Ramsdale, S., Martínez-de la Torre, A., Bricheno, L., Blyth, E., Bell, V. A., Davies, H., Marthews, T. R., O'Neill, C., Rumbold, H., O'Dea, E., Brereton, A., Guihou, K., Hines, A., Butenschon, M., Dadson, S. J., Palmer, T., Holt, J., Reynard, N., Best, M., Edwards, J., and Siddorn, J.: The UKC2 regional coupled environmental prediction system, Geosci. Model Dev., 11, 1–42, https://doi.org/10.5194/gmd-11-1-2018, 2018.
Luneva, M. V., Wakelin, S., Holt, J. T., Kozlov, I. E., Palmer, M., Pelling, H., Polton, J., and Matthew Toberman, E. V. Z.: Challenge to model turbulence in the active tidal shelf seas, J. Geophys. Res., in preparation, 2017.
MacLachlan, C., Arribas, A., Peterson, K. A., Maidens, A., Fereday, D., Scaife, A. A., Gordon, M., Vellinga, M., Williams, A., Comer, R. E., Camp, J., Xavier, P., and Madec, G.: Global Seasonal forecast system version 5 (GloSea5): a high-resolution seasonal forecast system, Q. J. Roy. Meteor. Soc., 141, 1072–1084, https://doi.org/10.1002/qj.2396, 2015.
Madec, G.: NEMO reference manual 3_6_STABLE: “NEMO ocean engine” Note du Pôle de modélisation, Institut Pierre-Simon Laplace (IPSL), France, No 27, ISSN No 1288-1619, 2016.
Mattsson, J.: Some comments on the barotropic flow through the Danish Straits and the division of the flow between the Belt Sea and the Öresund, Tellus A, 48, 456–464, https://doi.org/10.1034/j.1600-0870.1996.t01-2-00007.x, 1996.
Megann, A., Storkey, D., Aksenov, Y., Alderson, S., Calvert, D., Graham, T., Hyder, P., Siddorn, J., and Sinha, B.: GO5.0: the joint NERC-Met Office NEMO global ocean model for use in coupled and forced applications, Geosci. Model Dev., 7, 1069–1092,https://doi.org/10.5194/gmd-7-1069-2014, 2014.
Merchant, C. J., Embury, O., Roberts-Jones, J., Fiedler, E., Bulgin, C. E., Corlett, G. K., Good, S., McLaren, A., Rayner, N., Morak-Bozzo, S., and Donlon, C.: Sea surface temperature datasets for climate applications from Phase 1 of the European Space Agency Climate Change Initiative (SST CCI), Geosci. Data J., 1, 179–191, https://doi.org/10.1002/gdj3.20, 2014.
Meyer, E. M., Pohlmann, T., and Weisse, R.: Thermodynamic variability and change in the North Sea (1948-2007) derived from a multidecadal hindcast, J. Marine Syst., 86, 35–44, https://doi.org/10.1016/j.jmarsys.2011.02.001, 2011.
O'Dea, E., Furner, R., Wakelin, S., Siddorn, J., While, J., Sykes, P., King, R., Holt, J., and Hewitt, H.: The CO5 configuration of the 7 km Atlantic Margin Model: large-scale biases and sensitivity to forcing, physics options and vertical resolution, Geosci. Model Dev., 10, 2947–2969, https://doi.org/10.5194/gmd-10-2947-2017, 2017.
O'Dea, E. J., Arnold, A. K., Edwards, K. P., Furner, R., Hyder, P., Martin, M. J., Siddorn, J. R., Storkey, D., While, J., Holt, J. T., and Liu, H.: An operational ocean forecast system incorporating NEMO and SST data assimilation for the tidally driven European North-West shelf, J. Oper. Oceanogr., 5, 3–17, https://doi.org/10.1080/1755876X.2012.11020128, 2012.
Roberts, M. and Wood, R.: Topography sensitivity studies with a Bryan-Cox type ocean model, J. Phys. Oceanogr., 27, 823–836, 1997.
Siddorn, J. and Furner, R.: An analytical stretching function that combines the best attributes of geopotential and terrain-following vertical coordinates, Ocean Model., 66, 1–13, https://doi.org/10.1016/j.ocemod.2013.02.001, 2013.
Simpson, J. and Hunter, J.: Fronts in the Irish Sea, Nature, 250, 404–406, https://doi.org/10.1038/250404a0, 1974.
Tang, Y., Lean, H. W., and Bornemann, J.: The benefits of the Met Office variable resolution NWP model for forecasting convection, Meteorol. Appl., 20, 417–426, https://doi.org/10.1002/met.1300, 2013.
Umlauf, L. and Burchard, H.: A generic length-scale equation for geophysical turbulence models, J. Mar. Res., 61, 235–265, 2003.
Umlauf, L. and Burchard, H.: Second-order turbulence closure models for geophysical boundary layers. A review of recent work, Cont. Shelf Res., 25, 795–827, 2005.
Vorosmarty, C. J., Fekete, B. M., and Tucker, B. A.: Global River Discharge, 1807–1991, Version 1.1 (RivDIS), Tech. rep., ORNL DAAC, Oak Ridge, Tennessee, USA, https://doi.org/10.3334/ORNLDAAC/199, 1998.
Young, E. F. and Holt, J. T.: Prediction and analysis of long-term variability of temperature and salinity in the Irish Sea, J. Geophys. Res., 112, C01008, https://doi.org/10.1029/2005JC003386, 2007.
Short summary
This paper describes the next-generation ocean forecast model for the European NW shelf, AMM15 (Atlantic Margin Model, 1.5 km resolution). The current forecast system has a resolution of 7 km. While this is sufficient to represent large-scale circulation, many dynamical features (such as eddies, frontal jets, and internal tides) can only begin to be resolved at 0–1 km resolution. Here we introduce AMM15 and demonstrate its ability to represent the mean state and variability of the region.
This paper describes the next-generation ocean forecast model for the European NW shelf, AMM15...
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