Publication: Springtime connections between the large-scale sea-level pressure field and gust wind speed over Iberia and the Balearics
Loading...
Official URL
Full text at PDC
Publication Date
2011
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
European Geosciences Union
Citations
Exportar
Abstract
This paper investigates, by means of Singular Value Decomposition analysis, the springtime relationships between the mean sea-level pressure field over the North Atlantic and the regional wind gusts over the Iberian Peninsula, identifying the main atmospheric circulation patterns linked to gust wind speed anomaly configurations. The statistical significance of the obtained modes is investigated by means of Monte Carlo approach. The analysis highlighted that the covariability is dominated by two main large-scale features of the atmospheric circulation over the North Atlantic. The first mode relates to Iberian gust wind speeds to the Scandinavian pattern (SCAND), linking the large-scale pattern to above-normal wind gusts. The second covariability mode, associated with the North Atlantic Oscillation (NAO) pattern, correlates with maximum wind speeds over Iberia. An enhanced spring NAO pattern is related to positive (negative) wind gust correlations over northern (southern) Iberia. To find true relationships between large-scale atmospheric field and the gust wind speeds, composite maps were built up to give an average atmospheric circulation associated with coherent wind gust variability over Iberia.
Description
© Author(s) 2011. CC Attribution 3.0 License. This work has been partially supported by the research projects CGL2007-61328/CLI, CGL2009-07950, UE SafeWind Grant Agreement No. 213740 and VA025A10-2. Two anonymous reviewers provided helpful comments and suggestions. The authors wish to thank the following institutions which provided us with data: ERA40 from the European Center for Weather Medium Forecast (ECWMF), the Iberian Wind Dataset from the Spanish Meteorological Service (AEMET: Agencia Estatal de Meteorologia, Spain) and the teleconnection indices by the US Climate Prediction Center from the web site http://www.cpc.noaa.gov/data/teledoc/telecontents.shtml.
UCM subjects
Unesco subjects
Keywords
Citation
Barbosa, S. M., Silva, M. E., and Fernandes, M. J.: Multi-scale variability patterns in NCEP/NCAR reánalisis sea-level pressure, Theor. Appl. Climatol., 96, 319–326, doi:10.1007/s00704-008- 0042-4, 2009.
Barnston, A. G. and Livezey, R. E.: Classification, seasonality and persistence of low-frequency atmospheric circulation patterns, Mon. Weather Rev., 115, 1083–1126, 1987.
Bluestein, H. B.: Synoptic Dynamic Meteorology in Midlatitudes.Vol. II. Observations and Theory of Weather Systems, Oxford University Press, UK, 594 pp., 1993.
Bretherton, C. S., Smith, C., and Wallace, J. M.: An intercomparison of methods for finding coupled patterns in climate data, J. Climate, 5, 541–560, 1992.
Corte Real, J., Zhang, X., and Wang, X.: Large-scale circulation regimes and surface climatic anomalies over the Mediterranean, Int. J. Climatol., 15, 1135–1150, 1995.
Davis, R.: Predictability of sea surface temperature and sea level pressure anomalies over the Northern Hemisphere, J. Phys. Ocean., 6, 249–266, 1976.
Deser, C. and Blackmon, M. L.: Surface climate variations over the North Atlantic ocean during winter: 1900–1989, J. Climate, 6, 1743–1753, 1993.
Esteban Parra, M. J., Rodrigo, F. S., and Castro Diez, Y.: Spatial and temporal patterns of precipitation in Spain for the period 1880–1992, Int. J. Climatol., 18, 1557–1574, 1998.
Font, I.: Climatología de España y Portugal, 2nd edn., Ediciones Universidad de Salamanca, Spain, 422 pp., 2000.
Gamage, N. and Blumen, W.: Comparative analysis of low-level cold fronts: Wavelets, Fourier, and empirical orthogonal function decomposition, Mon. Weather Rev., 121, 2867–2878, 1993.
García, L.: La predicción del Tiempo en el Valle del Ebro, INM, Madrid, Technical Report Serie A, No 38, 1985.
Gao, W. and Li, B. L.: Wavelet analysis of coherent structures at the atmosphere-forest interface, J. Appl. Meteorol., 32, 1717–1725, 1993.
Gibson, J. K., Kallberg, P., Uppala, S., Hernández, A., Ñomura, A., and Serrano, E.: ERA description, ECMWF, Reading, UK, Technical Report Re-analysis Project Report Series 1, 1997.
Glowienka-Hence, R.: The North Atlantic Oscillation in the Atlantic-European SLP, Tellus, 42, 497–507, 1990.
Goossens, C. and Berger, A.: Annual and seasonal climatic variations over the Northern Hemisphere and Europe during the last century, Ann. Geophys., 4B, 385-400, 1986.
Grossmand, A. and Morlet, J.: Decomposition of Hardy functions into square integrable wavelets of constant shape, SIAM J. Math. Anal., 15, 732–736, 1984.
Heyen, H., Zorita, E., and von Storch, H.: Statistical downscaling of monthly mean North Atlantic air-pressure to sea level anomalies in the Baltic Sea, Tellus A, 48, 312–323, 1996.
Holton, J. R.: An introduction to dynamic meteorology, 3rd edn., Adademic Press, Int. Geophys. Ser, 48, 511 pp., 1992.
Hu, Q.: On the uniqueness of the singular value decomposition in meteorological applications, J. Climate, 10, 1762–1766, 1997.
Hurrell, J. W.: Transient eddy forcing of the rotational flow during northern winter, J. Atmos. Sci., 52, 2286–2301, 1995.
Hurrell, J. W. and van Loon, H.: Decadal variations in climate associated with the north Atlantic Oscillation, Climatic Change, 36, 301–326, 1997.
Kaiser, G.: A Friendly Guide to Wavelets, Birkhauser, 300 pp., 1995.
Lorenz, E.: Empirical orthogonal functions and statistical weather prediction, Dept. of Meteor., MIT, Cambridge, Mass, Statistical forecasting Project, Sci. Rept. no. 1, 49 pp., 1956.
Luna, M. Y., Martín, M. L., Valero, F., and González Rouco, F.: Wintertime Iberian Peninsula precipitation variability and its relation to North Atlantic Atmospheric circulation, in: Detecting and modelling regional climate change and associated impacts edited by: Brunet, M. and López, D., Springer-Verlag, Berlin, 369–376, 2001.
Maheras, P., Flocas, H. A., Patrikas, I., and Anagnostopoulou, C.: A 40 year objective climatology of surface cyclones in the Mediterranean region: spatial and temporal distribution, Int. J. Climatol., 21, 109–130, 2001.
Mallat, S.: A wavelet tour of signal processing, Academic Press, 637 pp., 1998.
Martín, M. L., Luna, M. Y., Morata, A., and Valero, F.: North Atlantic teleconnection patterns of low-frequency variability and their links with springtime precipitation in the western Mediterranean, Int. J. Climatol., 24, 213–230, doi:10.1002/joc.993, 2004.
Morata, A., Martín, M. L., Luna, M. Y., and Valero, F.: Selfsimilarity patterns of precipitation in the Iberian Peninsula, Theor. Appl. Climatol., 85, 41–59, doi:10.1007/s00704-005- 0175-7, 2006.
Morata, A., Luna, M. Y., Martín, M. L., Sotillo, M. G., and Valero, F.: Iberian autumnal precipitation characterization through observed, simulated and reanalysed data, Adv. Geosci., 16, 49– 54, doi:10.5194/adgeo-16-49-2008, 2008.
Morlet, G. A., Fourgeau, I., and Giard, D.: Wave propagation and sampling theory, Geophysics, 47, 203–236, 1982.
Palutikof, J. P., Kelly, P. M., Davies, T. D., and Halliday, J. A.: Impacts of spatial and temporal windspeed variability on wind energy output, J. Appl. Meteorol., 26, 1124–1133, 1987.
Rodríguez Puebla, C., Encinas, A. H., Nieto, S., and Garmendia, J.: Spatial and temporal patterns of annual precipitation variability over the Iberian Peninsula, Int. J. Climatol., 18, 299–316, 1998.
Rogers, J. C.: Patterns of low-frequency monthly sea level pressure variability (1899–1986) and associated wave cyclone frequencies, J. Climate, 3, 1364–1379, 1990.
Rogers, J. C. and Mosley-Thomson, E.: Atlantic Artic cyclones and the mild Siberian winters of the 1980s, Geophys. Res. Lett., 22, 799–802, 1995.
Simmons, A. J. and Gibson, J. K.: The ERA-40 Project Plan, ECMWF, Reading, UK, ERA-40 Project Report Series No. 1, 2000.
Sotillo, M. G., Martín, M. L., Valero, F., and Luna, M. Y.: Validation of an homogeneous 41-year (1961–2001) winter precipitation hindcasted dataset over the Iberian Peninsula: assessment of the regional improvement of global reanalysis, Clim. Dynam., 27, 627–645, doi:10.1997/s00382-006-0155-3, 2006.
Thuilleier, R. H.: Real-time of local wind patterns for application to nuclear-emergency response, B. Am. Meteorol. Soc., 68, 1111– 1115, 1987.
Ulbrich, U., Fink, A. H., Klawa, M., and Pinto, J. G.: Three extreme storms over Europe in December 1999, Weather, 56, 70–80, 2001.
Valero, F., Luna, M. Y., Martín, M. L., Morata, A., and Gonález Rouco, F.: Coupled modes of large-scale climatic variables and regional precipitation in the Western Mediterranean in autumn, Clim. Dynam., 22, 307–323, doi:10.1007/s00382-003-0382-9, 2004.
Valero, F., Martín, M. L., Sotillo, M. G., Morata, A., and Luna, M. Y.: Characterization of the autumn Iberian precipitation from long-term data sets: comparison between observed and hindcasted data, Int. J. Climatol., 29, 527–541, doi:10.1002/joc.1526, 2009.
von Storch, H. and Zwiers, F. W.: Statistical analysis in climate research, Cambridge Univesity Press, UK, 1999.
von Storch, H. and Navarra, A.: Analysis of climate variability, in: Applications of statistical techniques, Springer-Verlag, Berlin, 334 pp., 1995.
Wallace, J. M., Smith, C., and Bretherton, C. S.: Singular value decomposition of wintertime sea surface temperature and 500- mb height anomalies, J. Climate, 5, 561–576, 1992.
Weng, H. and Lau, K. M.: Wavelets, period doubling and time-frequency localization with application to organization of convection over the tropical western Pacific, J. Atmos. Sci., 51, 2523–2541, 1994.
Zuranski, J. A. and Jaspinka, B.: Directional analysis of extreme wind speeds in Poland, J. Wind Eng. Ind. Aerod., 65, 13–20, 1996.