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Article Type:
Research Article

A Composite Study of Explosive Cyclogenesis in Different Sectors of the North Atlantic. Part I: Cyclone Structure and Evolution

Chung-Chieh Wang Atmospheric Sciences Program and Department of Geography, The Ohio State University, Columbus, Ohio

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Jeffrey C. Rogers Atmospheric Sciences Program and Department of Geography, The Ohio State University, Columbus, Ohio

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Print Publication:
01 Jun 2001
DOI:
https://doi.org/10.1175/1520-0493(2001)129<1481:ACSOEC>2.0.CO;2
Page(s):
1481–1499
Restricted access

Abstract

General characteristics of the dynamical and thermal structure and evolution of strong explosive cyclones in the northwestern Atlantic near North America (18 cases) and the extreme northeastern Atlantic near Iceland (19 cases) are compared and contrasted through a composite study. Twice-daily gridded analyses from the European Centre for Medium-Range Weather Forecasts at 2.5° resolution from January 1985 to March 1996 are used. In the process of case selection, it is found that the frequency of rapid cyclogenesis in the Greenland–Iceland region is higher than previously thought, and some of the events can be extremely violent.

Many dynamically consistent differences are found when composite cyclones in the two sectors of the North Atlantic are compared. The upper-level forcing that triggers the development in the northeast Atlantic (NEA) is no less intense at the onset of rapid deepening. The NEA cyclones are also associated with lower static stability and locally concentrated but shallower thermal gradient, with less overall environmental baroclinicity. These factors lead to rapid depletion of available potential energy and result in a faster evolution and a shorter life cycle. Therefore, low-level thermal gradient and upper-level forcing components all weaken immediately after rapid deepening. The low-level incipient low in the NEA composite is also stronger, with a distinct potential vorticity (PV) anomaly visible at least 24 h prior to most rapid deepening, and the development produces a more pronounced warm core seclusion. Explosive cyclones in the northwest Atlantic, on the other hand, tend to have a higher stability and a greater amount of environmental baroclinicity, with temperature gradients in a broader area and deeper layers. These factors correspond to slower evolution and a longer life cycle.

For cases in the NEA near Iceland, it appears that both upper-level forcing and initial system strengths affect the maximum deepening rate. The close proximity of this region to the high PV reservoir in the lower stratosphere is helpful in the generation of very strong forcing and a violent development under favorable synoptic conditions, when a “parent cyclone” with appreciable strength exists to the north/northeast of the incipient system.

*Current affiliation: Department of Environmental Management, Jin-Wen Institute of Technology, Taipei, Taiwan.

Corresponding author address: Dr. Chung-Chieh Wang, Department of Environmental Management, Jin-Wen Institute of Technology, 99 An-Chung Road, Hsin-Tien City, Taipei, Taiwan.

Abstract

General characteristics of the dynamical and thermal structure and evolution of strong explosive cyclones in the northwestern Atlantic near North America (18 cases) and the extreme northeastern Atlantic near Iceland (19 cases) are compared and contrasted through a composite study. Twice-daily gridded analyses from the European Centre for Medium-Range Weather Forecasts at 2.5° resolution from January 1985 to March 1996 are used. In the process of case selection, it is found that the frequency of rapid cyclogenesis in the Greenland–Iceland region is higher than previously thought, and some of the events can be extremely violent.

Many dynamically consistent differences are found when composite cyclones in the two sectors of the North Atlantic are compared. The upper-level forcing that triggers the development in the northeast Atlantic (NEA) is no less intense at the onset of rapid deepening. The NEA cyclones are also associated with lower static stability and locally concentrated but shallower thermal gradient, with less overall environmental baroclinicity. These factors lead to rapid depletion of available potential energy and result in a faster evolution and a shorter life cycle. Therefore, low-level thermal gradient and upper-level forcing components all weaken immediately after rapid deepening. The low-level incipient low in the NEA composite is also stronger, with a distinct potential vorticity (PV) anomaly visible at least 24 h prior to most rapid deepening, and the development produces a more pronounced warm core seclusion. Explosive cyclones in the northwest Atlantic, on the other hand, tend to have a higher stability and a greater amount of environmental baroclinicity, with temperature gradients in a broader area and deeper layers. These factors correspond to slower evolution and a longer life cycle.

For cases in the NEA near Iceland, it appears that both upper-level forcing and initial system strengths affect the maximum deepening rate. The close proximity of this region to the high PV reservoir in the lower stratosphere is helpful in the generation of very strong forcing and a violent development under favorable synoptic conditions, when a “parent cyclone” with appreciable strength exists to the north/northeast of the incipient system.

*Current affiliation: Department of Environmental Management, Jin-Wen Institute of Technology, Taipei, Taiwan.

Corresponding author address: Dr. Chung-Chieh Wang, Department of Environmental Management, Jin-Wen Institute of Technology, 99 An-Chung Road, Hsin-Tien City, Taipei, Taiwan.

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  • Anthes, R. A., 1990: Advances in the understanding and prediction of cyclone development with limit-area fine-mesh models. Extratropical Cyclones, The Erik Palmén Memorial Volume. C. W. Newton and E. O. Holopainen, Eds., Amer. Meteor. Soc., 221–253.

  • ——, Y.-H. Kuo, and J. R. Gyakum, 1983: Numerical simulations of a case of explosive marine cyclogenesis. Mon. Wea. Rev.,111, 1174–1188.

  • Atlas, R., 1987: The role of oceanic fluxes and initial data in the numerical prediction of an intense coastal storm. Dyn. Atmos. Oceans,10, 359–388.

  • Bengtsson, L., 1991: Advances and prospects in numerical weather prediction. Quart. J. Roy. Meteor. Soc.,117, 855–902.

  • Blier, W., and R. W. Wakimoto, 1995: Observations of the early evolution of an explosive oceanic cyclone during ERICA IOP 5. Part I: Synoptic overview and mesoscale frontal structure. Mon. Wea. Rev.,123, 1288–1310.

  • Bosart, L. F., 1981: The Presidents’ Day snowstorm of 18–19 February 1979: A subsynoptic-scale event. Mon. Wea. Rev.,109, 1542–1566.

  • ——, and S. C. Lin, 1984: A diagnostic analysis of the Presidents’ Day storm of February 1979. Mon. Wea. Rev.,112, 2148–2177.

  • Bretherton, F. P., 1966: Critical layer instability in baroclinic flows. Quart. J. Roy. Meteor. Soc.,92, 325–334.

  • Businger, S., and R. J. Reed, 1989: Cyclogenesis in cold air masses. Wea. Forecasting,4, 133–156.

  • Charney, J. G., 1947: The dynamics of long waves in a baroclinic westerly current. J. Meteor.,4, 135–162.

  • Chen, S.-J., Y.-H. Kuo, P.-Z. Zhang, and Q.-F. Bai, 1992: Climatology of explosive cyclones off the east Asian coast. Mon. Wea. Rev.,120, 3029–3035.

  • Davis, C. A., and K. A. Emanuel, 1988: Observational evidence for the influence of surface heat fluxes on rapid maritime cyclogenesis. Mon. Wea. Rev.,116, 2649–2659.

  • Dirks, R. A., J. P. Kuettner, and J. A. Moore, 1988: Genesis of Atlantic Lows Experiment (GALE): An overview. Bull. Amer. Meteor. Soc.,69, 148–160.

  • Emanuel, K. A., 1986a: An air–sea interaction theory for tropical cyclones. Part I: Steady-state maintenance. J. Atmos. Sci.,43, 585–604.

  • ——, 1986b: A two stage air–sea interaction theory for polar lows. Proc. Int. Conf. on Polar Lows, Oslo, Norway, The Norwegian Meteorological Institute.

  • ——, and R. Rotunno, 1989: Polar lows as arctic hurricanes. Tellus,41A, 1–17.

  • ——, M. Fantini, and A. J. Thorpe, 1987: Baroclinic instability in an environment of small stability to slantwise moist convection. Part I: Two-dimensional models. J. Atmos. Sci.,44, 1559–1573.

  • Fantini, M., 1990: The influence of heat and moisture fluxes from the ocean on the development of baroclinic waves. J. Atmos. Sci.,47, 840–855.

  • Gadd, A. J., C. D. Hall, and R. E. Kruze, 1990: Operational numerical prediction of rapid cyclogenesis over the North Atlantic. Tellus,42A, 116–121.

  • Gall, R., 1976: The effects of released latent heat in growing baroclinic waves. J. Atmos. Sci.,33, 1686–1701.

  • Grønås, S., 1995: The seclusion intensification of the New Year’s Day storm 1992. Tellus,47A, 733–746.

  • Gyakum, J. R., 1983a: On the evolution of the QE II storm. Part I: Synoptic aspects. Mon. Wea. Rev.,111, 1137–1155.

  • ——, 1983b: On the evolution of the QE II storm. Part II: Dynamic and thermodynamic structure. Mon. Wea. Rev.,111, 1156–1173.

  • ——, 1991: Meteorological precursors to the explosive intensification of the QE II storm. Mon. Wea. Rev.,119, 1105–1131.

  • ——, J. R. Anderson, R. H. Grumm, and E. L. Gruner, 1989: North Pacific cold-season surface cyclone activity: 1975–1983. Mon. Wea. Rev.,117, 1141–1155.

  • ——, P. J. Roebber, and T. A. Bullock, 1992: The role of antecedent surface vorticity development as a conditioning process in explosive cyclone intensification. Mon. Wea. Rev.,120, 1465–1489.

  • ——, Y.-H. Kuo, Z. Guo, and Y.-R. Guo, 1995: A case of rapid continental mesoscale cyclogenesis. Part II: Model and observational diagnosis. Mon. Wea. Rev.,123, 998–1024.

  • Hadlock, R., and C. W. Kreitzberg, 1988: The Experiment on Rapidly Intensifying Cyclones over the Atlantic (ERICA) field study: Objectives and plans. Bull. Amer. Meteor. Soc.,69, 1309–1320.

  • Hedley, M., and M. K. Yau, 1991: Anelastic modeling of explosive cyclogenesis. J. Atmos. Sci.,48, 711–727.

  • Hirschberg, P. A., and J. M. Fritsch, 1991: Tropopause undulations and the development of extratropical cyclones. Part I: Overview and observations from a cyclone event. Mon. Wea. Rev.,119, 496–550.

  • Hollingsworth, A., D. B. Shaw, P. Lönnberg, L. Illari, K. Arpe, and A. J. Simmons, 1986: Monitoring of observation and analysis quality by a data assimilation system. Mon. Wea. Rev.,114, 861–879.

  • Holton, J. R., 1992: An Introduction to Dynamic Meteorology. 3d ed. Academic Press, 511 pp.

  • Hoskins, B. J., 1990: Theory of extratropical cyclones. Extratropical Cyclones, The Erik Palmén Memorial Volume, C. W. Newton and E. O. Holopainen, Eds., Amer. Meteor. Soc., 63–80.

  • ——, M. E. McIntyre, and A. W. Robertson, 1985: On the use and significance of isentropic potential vorticity maps. Quart. J. Roy. Meteor. Soc.,111, 877–946.

  • Hurrell, J. W., 1995: Decadal trends in the North Atlantic oscillation:Regional temperatures and precipitation. Science,269, 676–679.

  • Kocin, P. J., and L. W. Uccellini, 1985: A survey of major east coast snowstorms, 1960–1983. NASA Goddard Space Flight Center, Greenbelt, MD. [NTIS N85-274472.].

  • Kristjánsson, J. E., and S. Thorsteinsson, 1995: The structure and evolution of an explosive cyclone near Iceland. Tellus,47A, 656–670.

  • Kuo, Y.-H., R. J. Reed, and S. Low-Nam, 1991a: Effects of surface energy fluxes during the early development and rapid intensification stages of seven explosive cyclones in the western Atlantic. Mon. Wea. Rev.,119, 457–476.

  • ——, M. A. Shapiro, and E. G. Donall, 1991b: The interaction between baroclinic and diabatic processes in a numerical simulation of a rapidly intensifying extratropical marine cyclone. Mon. Wea. Rev.,119, 368–384.

  • Lambert, S. J., 1988: A comparison of operational global analyses from the European Centre for Medium Range Weather Forecasts (ECMWF) and the National Meteorological Center (NMC). Tellus,40A, 272–284.

  • Lönnberg, P., and D. B. Shaw, 1984: Data selection and quality control in the ECMWF analysis system. Proc. Workshop on the Use and Quality Control of Meteorological Observations, Reading, United Kingdom, ECMWF, 225–254.

  • Lorenc, A. C., 1981: A global three-dimensional multivariate statistical interpolation scheme. Mon. Wea. Rev.,109, 701–721.

  • Lupo, A. R., P. J. Smith, and P. Zwack, 1992: A diagnosis of the explosive development of two extratropical cyclones. Mon. Wea. Rev.,120, 1490–1523.

  • Macdonald, B. C., and E. R. Reiter, 1988: Explosive cyclogenesis over the eastern United States. Mon. Wea. Rev.,116, 1568–1586.

  • Manobianco, J., 1989a: Explosive East Coast cyclogenesis over the west-central North Atlantic Ocean: A composite study derived from ECMWF operational analysis. Mon. Wea. Rev.,117, 2365–2383.

  • ——, 1989b: Explosive East Coast cyclogenesis: Numerical experimentation and model-based diagnostics. Mon. Wea. Rev.,117, 2384–2405.

  • McCallum, E., and N. S. Grahame, 1993: The Braer storm—10 January 1993. Weather,48, 103–109.

  • Mullen, S. L., and D. P. Baumhefner, 1988: Sensitivity of numerical simulations of explosive oceanic cyclogenesis to changes in physical parameterizations. Mon. Wea. Rev.,116, 2289–2329.

  • Neiman, P. J., and M. A. Shapiro, 1993: The life cycle of an extratropical marine cyclone. Part I: Frontal-cyclone evolution and thermodynamic air–sea interaction. Mon. Wea. Rev.,121, 2153–2176.

  • ——, ——, and L. S. Fedor, 1993: The life cycle of an extratropical marine cyclone. Part II: Mesoscale structure and diagnostics. Mon. Wea. Rev.,121, 2177–2199.

  • Nordeng, T. E., and E. A. Rasmussen, 1992: A most beautiful polar low. A case study of a polar low development in the Bear Island region. Tellus,44A, 81–99.

  • Nuss, W. A., and S. I. Kamikawa, 1990: Dynamics and boundary layer processes in two Asian cyclones. Mon. Wea. Rev.,118, 755–771.

  • Petterssen, S., 1956a: Weather Analysis and Forecasting. 2d ed. Vol. I. McGraw-Hill, 428 pp.

  • ——, 1956b: Weather Analysis and Forecasting. 2d ed. Vol. II. McGraw-Hill, 266 pp.

  • Rasmussen, E., and M. Lystad, 1987: The Norwegian Polar Low Project: A summary of the International Conference on Polar Low. Bull. Amer. Meteor. Soc.,68, 801–816.

  • ——, T. S. Pedersen, L. T. Pedersen, and J. Turner, 1992: Polar lows and arctic instability lows in the Bear Island region. Tellus,44A, 133–154.

  • Reader, M. C., and G. W. K. Moore, 1995: Stratosphere–troposphere interactions associated with a case of explosive cyclogenesis in the Labrador Sea. Tellus,47A, 849–863.

  • Reed, R. J., A. J. Simmons, M. D. Albright, and P. Undén, 1988: The role of latent heat release in explosive cyclogenesis: Three examples based on ECMWF operational forecasts. Wea. Forecasting,3, 217–229.

  • ——, G. A. Grell, and Y.-H. Kuo, 1993: The ERICA IOP 5 storm. Part II: Sensitivity tests and further diagnosis based on model output. Mon. Wea. Rev.,121, 1595–1612.

  • ——, Y.-H. Kuo, and S. Low-Nam, 1994: An adiabatic simulation of the ERICA IOP 4 storm: An example of quasi-ideal frontal cyclone development. Mon. Wea. Rev.,122, 2688–2708.

  • Roebber, P. J., 1984: Statistical analysis and updated climatology of explosive cyclones. Mon. Wea. Rev.,112, 1577–1589.

  • Rogers, E., and L. F. Bosart, 1986: An investigation of explosively deepening oceanic cyclones. Mon. Wea. Rev.,114, 702–718.

  • ——, and ——, 1991: A diagnostic study of two intense oceanic cyclones. Mon. Wea. Rev.,119, 965–996.

  • Rogers, J. C., 1997: North Atlantic storm track variability and its association to the North Atlantic oscillation and climate variability of northern Europe. J. Climate,10, 1635–1647.

  • Rotunno, R., and K. A. Emanuel, 1987: An air–sea interaction theory for tropical cyclones. Part II: Evolutionary study using a nonhydrostatic axisymmetric numerical model. J. Atmos. Sci.,44, 542–561.

  • Sanders, F., 1971: Analytic solutions of the nonlinear omega and vorticity equations for a structurally simple model of disturbances in the baroclinic westerlies. Mon. Wea. Rev.,99, 393–408.

  • ——, 1986a: Explosive cyclogenesis in the west-central North Atlantic Ocean, 1981–84. Part I: Composite structure and mean behavior. Mon. Wea. Rev.,114, 1781–1794.

  • ——, 1986b: Explosive cyclogenesis in the west-central North Atlantic Ocean, 1981–84. Part II: Evaluation of LFM model performance. Mon. Wea. Rev.,114, 2207–2218.

  • ——, 1987: Skill of NMC operational dynamical models in prediction of explosive cyclogenesis. Wea. Forecasting,2, 322–336.

  • ——, and J. R. Gyakum, 1980: Synoptic-dynamic climatology of the“bomb.” Mon. Wea. Rev.,108, 1589–1606.

  • ——, and E. P. Auciello, 1989: Skill in prediction of explosive cyclogenesis over the western North Atlantic Ocean, 1987/88: A forecast checklist and NMC dynamic models. Wea. Forecasting,4, 157–172.

  • Sardie, J. M., and T. T. Warner, 1985: A numerical study of the development mechanisms of polar lows. Tellus,37A, 460–477.

  • Serreze, M. C., 1995: Climatological aspects of cyclone development and decay in the Arctic. Atmos.–Ocean,33, 1–23.

  • ——, J. E. Box, R. G. Barry, and J. E. Walsh, 1993: Characteristics of Arctic synoptic activity, 1952–1989. Meteor. Atmos. Phys.,51, 147–164.

  • ——, F. Carse, R. G. Barry, and J. C. Rogers, 1997: Icelandic low cyclone activity: Climatological features, linkages with the NAO, and relationships with recent changes in the Northern Hemisphere circulation. J. Climate,10, 453–464.

  • Shapiro, M. A., and D. Keyser, 1990: Fronts, jet streams and the tropopause. Extratropical Cyclones, The Erik Palmén Memorial Volume, C. W. Newton and E. O. Holopainen, Eds., Amer. Meteor. Soc., 167–191.

  • Shaw, D. B., P. Lönnberg, A. Hollingsworth, and P. Undén, 1987: Data assimilation: The 1984/85 revisions of the ECMWF mass and wind analysis. Quart. J. Roy. Meteor. Soc.,113, 533–566.

  • Silberberg, S. R., and L. F. Bosart, 1982: An analysis of systematic cyclone errors in the NMC LFM-II model during the 1978/79 cool season. Mon. Wea. Rev.,110, 254–271.

  • Simmons, A. J., D. M. Burridge, M. Jarraud, C. Girard, and W. Wergen, 1989: The ECMWF medium-range prediction models: Development of the numerical formulations and the impact of increased resolution. Meteor. Atmos. Phys.,40, 28–60.

  • ——, R. Mureau, and T. Petroliagis, 1995: Error growth and estimates of predictability from the ECMWF forecasting. Quart. J. Roy. Meteor. Soc.,121, 1739–1771.

  • Sinclair, M. R., 1994: An objective cyclone climatology for the Southern Hemisphere. Mon. Wea. Rev.,122, 2239–2256.

  • ——, and R. L. Elsberry, 1986: A diagnostic study of baroclinic disturbances in polar air streams. Mon. Wea. Rev.,114, 1957–1983.

  • Trenberth, K. E., and J. G. Olson, 1988: An evaluation and intercomparison of global analyses from the National Meteorological Center and the European Centre for Medium Range Forecasts. Bull. Amer. Meteor. Soc.,69, 1047–1057.

  • Uccellini, L. W., 1990: Processes contributing to the rapid development of extratropical cyclones. Extratropical Cyclones, The Erik Palmén Memorial Volume, C. W. Newton and E. O. Holopainen, Eds., Amer. Meteor. Soc., 81–105.

  • ——, D. Keyser, K. F. Brill, and C. H. Wash, 1985: The Presidents’ Day cyclone of 18–19 February 1979: Influence of upstream trough amplification and associated tropopause folding on rapid cyclogenesis. Mon. Wea. Rev.,113, 962–988.

  • Warrenfeltz, L. L., and R. L. Elsberry, 1989: Superposition effects in rapid cyclogenesis—Linear model studies. J. Atmos. Sci.,46, 789–802.

  • Wash, C. H., J. E. Peak, W. E. Calland, and W. A. Cook, 1988 Diagnostic study of explosive cyclogenesis during FGGE. Mon. Wea. Rev.,116, 431–451.

  • ——, R. A. Hale, P. H. Dobos, and E. J. Wright, 1992: Study of explosive and nonexplosive cyclogenesis during FGGE. Mon. Wea. Rev.,120, 40–51.

  • Wergen, W., 1989: Normal mode initialization and atmospheric tides. Quart. J. Roy. Meteor. Soc.,115, 535–545.

  • Wernli, H., 1997: A Lagragian-based analysis of extratropical cyclones. II: A detailed case-study. Quart. J. Roy. Meteor. Soc.,123, 1677–1706.

  • Whitaker, J. S., and C. A. Davis, 1994: Cyclogenesis in a saturated environment. J. Atmos. Sci.,51, 889–907.

  • Zehnder, J., and D. Keyser, 1991: The influence of interior gradients of potential vorticity on rapid cyclogenesis. Tellus,43A, 198–212.

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