Synoptic–Dynamic Climatology of Large-Scale Cyclones in the North Pacific

Influence of Western North Pacific Tropical Cyclones on Their Large-Scale Environment

The authors investigate the influence of western North Pacific (WNP) tropical cyclones (TCs) on their large-scale environment by lag regressing various large-scale climate variables [atmospheric temperature, winds, relative vorticity, outgoing longwave radiation (OLR), column water vapor, and sea surface temperature (SST)] on an index of TC activity [accumulated cyclone energy (ACE)] on a weekl...

The Pacific Meridional Mode and the Occurrence of Tropical 1 Cyclones in the Western North Pacific

30 This study investigates the association between the Pacific Meridional Mode (PMM) 31 and tropical cyclone (TC) activity in the western North Pacific (WNP). It is found that 32 the positive PMM phase favors the occurrence of TCs in the WNP while the negative 33 PMM phase inhibits the occurrence of TCs there. Observed relationships are 34 consistent with those from a long-term preindustrial co...

Mesoscale Simulation of Tropical Cyclones in the South Pacific: Climatology and Interannual Variability

The Weather Research and Forecast model at 1/38 resolution is used to simulate the statistics of tropical cyclone (TC) activity in the present climate of the South Pacific. In addition to the large-scale conditions, the model is shown to reproduce a wide range of mesoscale convective systems. Tropical cyclones grow from the most intense of these systems formed along the South Pacific convergenc...

Large-Scale Characteristics of Rapidly Intensifying Tropical Cyclones in the North Atlantic Basin

The National Hurricane Center (NHC) and Statistical Hurricane Intensity Prediction Scheme (SHIPS) databases are employed to examine the large-scale characteristics of rapidly intensifying Atlantic basin tropical cyclones. In this study, rapid intensification (RI) is defined as approximately the 95th percentile of over-water 24-h intensity changes of Atlantic basin tropical cyclones that develop...

A Novel Large-Scale Deletion of The Mitochondrial DNA of Spermatozoa of Men in North Iran