Ensemble-based sensitivity analysis applied to African easterly waves

Weather and Forecasting

Volumn 25, Issue 1, 2010, Pages 61-78

  Torn, Ryan D ^a  

^a STATE UNIVERSITY OF NEW YORK   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ADVANCED RESEARCHES; AFRICAN EASTERLY WAVES; CUMULUS PARAMETERIZATION; ENSEMBLE FORECASTS; ENSEMBLE KALMAN FILTER; ENSEMBLE PREDICTION; FIELD CAMPAIGN; HIGH RESOLUTION; INITIAL CONDITIONS; LEAD TIME; MERIDIONAL WINDS; MULTI-DISCIPLINARY ANALYSIS; THERMODYNAMIC PROFILES; WEATHER RESEARCH AND FORECASTING MODELS; WRF MODEL;

AMPLIFICATION; CLOUDS; ERRORS; SENSITIVITY ANALYSIS;

WEATHER FORECASTING;

ATMOSPHERIC CONVECTION; CUMULUS; EASTERLY WAVE; ENSEMBLE FORECASTING; KALMAN FILTER; PARAMETERIZATION; PRECIPITATION (CLIMATOLOGY); SENSITIVITY ANALYSIS; WIND;

AFRICA;

EID: 77953594912     PISSN: 08828156     EISSN: None     Source Type: Journal    
DOI: 10.1175/2009WAF2222255.1     Document Type: Article

References (40)

1. Ancell, B., and G. J. Hakim, 2007: Comparing adjoint and ensemble sensitivity analysis with applications to observation targeting. Mon. Wea. Rev., 135, 4117-4134.
2. Anderson, J. L., 2001: An ensemble adjustment Kalman filter for data assimilation. Mon. Wea. Rev., 129, 2884-2903.
3. Anderson, J. L., 2009: Spatially and temporally varying adaptive covariance inflation for ensemble filters. Tellus, 61A, 72-83.
4. Anderson, J. L., T. Hoar, K. Raeder, H. Liu, N. Collins, R. Torn, and A. Avellano, 2009: The Data Assimilation Research Testbed: A community data assimilation facility. Bull. Amer. Meteor. Soc., 90, 1283-1296.
5. Anthes, R.A., and Coauthors, 2008: The COSMIC/FORMOSAT-3 mission: Early results. Bull. Amer. Meteor. Soc., 89, 313-333.
6. Arnault, J., and F. Roux, 2009: Case study of a developing African easterly wave during NAMMA: An energetic point of view. J. Atmos. Sci., 66, 2991-3020.
7. Avila, L. A., and R. J. Pasch, 1992: Atlantic tropical systems of 1991. Mon. Wea. Rev., 120, 2688-2696.
8. Barker, D. M., W. Huang, Y. R. Guo, A. J. Bourgeois, and Q. N. Xiao, 2004: A three-dimensional variational data assimilation system for MM5: Implementation and initial results. Mon. Wea. Rev., 132, 897-914.
9. Berry, G. J., and C. Thorncroft, 2005: Case study of an intense African easterly wave. Mon. Wea. Rev., 133, 752-766.
10. Berry, G. J., and C. Thorncroft, and T. Hewson, 2007: African easterly waves during 2004-Analysis using objective techniques. Mon. Wea. Rev., 135, 1251-1267.
11. Brown, D. P., 2006: Hurricane Helene tropical cyclone report. National Hurricane Center Tech. Rep. AL082006, Miami, FL, 13 pp.
12. Burpee, R.W., 1972:The origin and structure of easterly waves in the lower troposphere of North Africa. J. Atmos. Sci., 29, 77-90.
13. Fink, A. H., and A. Reiner, 2003: Spatio-temporal variability of the relation between African easterly waves and West African squall lines in 1998 and 1999. J. Geophys. Res., 108, 4332, doi:10.1029/2002JD002816.
14. Gaspari, G., and S. E. Cohn, 1999: Construction of correlation functions in two and three dimensions. Quart. J. Roy. Meteor. Soc., 125, 723-757.
15. Grell, G. A., and D. Devenyi, 2002: A generalized approach to parameterizing convection combining ensemble and data assimilation techniques. Geophys. Res. Lett., 29, 1693, doi:10.1029/2002GL015311.
16. Hakim, G. J., and R. D. Torn, 2008: Ensemble synoptic analysis. Synoptic-Dynamic Meteorology and Weather Analysis and Forecasting: A Tribute to Fred Sanders, Meteor. Monogr., No. 55, Amer. Meteor. Soc., 147-161.
17. Hawblitzel, D. P., F. Zhang, Z. Meng, and C. A. Davis, 2007: Probabilistic evaluations of the dynamics and predictability of the mesoscale convective vortex of 10-13 June 2003. Mon. Wea. Rev., 135, 2544-2563.
18. Hong, S.-Y., J. Dudhia, and S. H. Chen, 2004: A revised approach to ice microphysical processes for the bulk parameterization of clouds and precipitation. Mon. Wea. Rev., 132, 103-120.
19. Hong, S.-Y., Y. Noh, and J. Dudhia, 2006: A new vertical diffusion package with an explicit treatment of entrainment processes. Mon. Wea. Rev., 134, 2318-2341.
20. Hoskins, B. J., 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.
21. Hsieh, J.-S., and K. H. Cook, 2007: A study of the energetics of African easterly waves using a regional climate model. J. Atmos. Sci., 64, 421-440.
22. Janjić, Z. I., 1994: The step-mountain eta coordinate model: Further developments of the convection, viscous sublayer, and turbulence closure schemes. Mon. Wea. Rev., 122, 927-945.
23. Kain, J. S., and J. M. Fritsch, 1990: A one-dimensional entraining-detraining plume model and its application in convective parameterization. J. Atmos. Sci., 47, 2784-2802.
24. Laing, A. G., R. E. Carbone, V. Levizzani, and J. D. Tuttle, 2008: The propagation and diurnal cycles of deep convection in northern tropical Africa. Quart. J. Roy. Meteor. Soc., 134, 93-109.
25. Payne, S. W., and M. M. McGarry, 1977: The relationship of satellite inferred convective activity to easterly waves over West Africa and the adjacent ocean during phase III of GATE. Mon. Wea. Rev., 105, 413-420.
26. Redelsperger, J. L., C. D. Thorncroft, A. Diedhiou, T. Lebel, D. J. Parker, and J. Polcher, 2006: African Monsoon Multidisciplinary Analysis: An international research project and field campaign. Bull. Amer. Meteor. Soc., 87, 1739-1746.
27. Reed, R. J., D. C. Norquist, and E. E. Recker, 1977: The structure and properties of African wave disturbances as observed during phase III of GATE. Mon. Wea. Rev., 105, 317-333.
28. Sippel, J. A., and F. Zhang, 2008: A probabilistic analysis of the dynamics and predictability of tropical cyclogenesis. J. Atmos. Sci., 65, 3440-3459.
29. Skamarock, W. C., J. B. Klemp, J. Dudhia, D. O. Gill, D. M. Barker, W. Wang, and J. G. Powers, 2005:Adescription of the Advanced Research WRF Version 2. NCAR Tech. Rep. 468+STR, 88 pp.
30. Thorncroft, C. D., and B. J. Hoskins, 1994: An idealized study of African easterly waves. Part I: A linear view. Quart. J. Roy. Meteor. Soc., 120, 953-982.
31. Thorncroft, C. D., J.-P. Lafore, G. Berry, R. Roca, F. Guichard, M. Tomasini, and N. Asencio, 2007: Overview of Africa weather systems during the summer of 2006. CLIVAR Exchanges, Vol. 12, No. 2, International CLIVAR Project Office, Southampton, United Kingdom, 18-20.
32. Tompkins, A. M., A. Diongue-Niang, D. J. Parker, and C. D. Thorncroft, 2005: The African easterly jet in the ECMWF Integrated Forecast System: 4D-Var analysis. Quart. J. Roy. Meteor. Soc., 133, 2861-2885.
33. Torn, R. D., and G. J. Hakim, 2008a: Ensemble-based sensitivity analysis. Mon. Wea. Rev., 136, 663-677.
34. Torn, R. D, and G. J. Hakim, 2008b: Performance characteristics of a pseudo-operational ensemble Kalman filter. Mon. Wea. Rev., 136, 3947-3963.
35. Torn, R. D, and G. J. Hakim, 2009a: Ensemble data assimilation applied to RAINEX observations of Hurricane Katrina (2005). Mon. Wea. Rev., 137, 2817-2829.
36. Torn, R. D, and G. J. Hakim, 2009b: Initial condition sensitivity of western Pacific extratropical transitions determined using ensemblebased sensitivity analysis. Mon. Wea. Rev., 137, 3388-3406.
37. Torn, R. D, G. J. Hakim, and C. Snyder, 2006: Boundary conditions for limitedarea ensemble Kalman filters. Mon. Wea. Rev., 134, 2490-2502.
38. Velden, C., and Coauthors, 2005: Recent innovations in deriving tropospheric winds from meteorological satellites. Bull. Amer. Meteor. Soc., 86, 205-223.
39. Wilks, D. S., 2005: Statistical Methods in the Atmospheric Sciences. Academic Press, 648 pp.
40. Zhang, F., C. Snyder, and R. Rotunno, 2003: Effects of moist convection on mesoscale predictability. J. Atmos. Sci., 60, 1173-1185.