Kim, D., Lee, S. - K., Lopez, H., Foltz, G. R., Misra, V., & Kumar, A. (2020). On the Role of Pacific-Atlantic SST Contrast and Associated Caribbean Sea Convection in August-October U.S. Regional Rainfall Variability. Geophys. Res. Lett. , 47 (11).
Abstract: This study investigates the large‐scale atmospheric processes that lead to U.S. precipitation variability in late summer to midfall (August–October; ASO) and shows that the well‐recognized relationship between North Atlantic Subtropical High and U.S. precipitation in peak summer (June–August) significantly weakens in ASO. The working hypothesis derived from our analysis is that in ASO convective activity in the Caribbean Sea, modulated by the tropical Pacific‐Atlantic sea surface temperature (SST) anomaly contrast, directly influences the North American Low‐Level Jet and thus U.S. precipitation east of the Rockies, through a Gill‐type response. This hypothesis derived from observations is strongly supported by a long‐term climate model simulation and by a linear baroclinic atmospheric model with prescribed diabatic forcings in the Caribbean Sea. This study integrates key findings from previous studies and advances a consistent physical rationale that links the Pacific‐Atlantic SST anomaly contrast, Caribbean Sea convective activity, and U.S. rainfall in ASO.
Kirtman, B. P., Misra, V., Anandhi, A., Palko, D., & Infanti, J. (2017). Future Climate Change Scenarios for Florida. In E. P. Chassignet, J. W. Jones, V. Misra, & J. Obeysekera (Eds.), Florida's climate: Changes, variations, & impacts (pp. 533–555). Gainesville, FL: Florida Climate Institute.
Kirtman, B. P., Misra, V., Burgman, R. J., Infanti, J., & Obeysekera, J. (2017). Florida Climate Variability and Prediction. In E. P. Chassignet, J. W. Jones, V. Misra, & J. Obeysekera (Eds.), Florida's climate: Changes, variations, & impacts (pp. 511–532). Gainesville, FL: Florida Climate Institute.
Kozar, M. E., & Misra, V. (2013). Evaluation of twentieth-century Atlantic Warm Pool simulations in historical CMIP5 runs. Clim Dyn , 41 (9-10), 2375–2391.
Kozar, M. E., & Misra, V. (2014). Statistical Prediction of Integrated Kinetic Energy in North Atlantic Tropical Cyclones. Mon. Wea. Rev. , 142 (12), 4646–4657.
Kozar, M. E., Misra, V., & Powell, M. D. (2016). Hindcasts of Integrated Kinetic Energy in Atlantic Tropical Cyclones: A Neural Network Prediction Scheme. Mon. Wea. Rev. , 144 (12), 4591–4603.
Krishnamurthy, V., & Misra, V. (2010). Observed ENSO teleconnections with the South American monsoon system. Atmos. Sci. Lett. , .
Krishnamurthy, V., & Misra, V. (2011). Daily atmospheric variability in the South American monsoon system. Clim Dyn , 37 (3-4), 803–819.
Krishnamurti, T. N., Karmakar, N., Misra, V., Nag, B., Sahu, D., Dubey, S., et al. (2018). Association between upper level diffluence in the Tropical Easterly Jet and the formation of the strongest Atlantic hurricanes in recent years. SPIE , 10782 , 10.
Abstract: In this paper we report the evidence of the potential role of diffluence in the 200hPa wind field off the coast of West Africa in the formation of a significant number of Category 4 and Category 5 hurricanes in the recent decade. It is shown that more than 80% cases of hurricanes at Category 4 and above is preceded by upper level diffluence in the Tropical Easterly Jet (TEJ) by 0{5 days. This TEJ is the outflow from the southern flank of the Tibetan anticyclone from the Asian monsoon region.
Krishnamurti, T. N., Stefanova, L., &, M., V. (2013). Tropical Meteorology: An Introduction . Springer.
