Essential Role of Synoptic Environment on Rainfall Distribution of Landfalling Tropical Cyclones Over China

2018 ◽  
Vol 123 (20) ◽  
pp. 11,285-11,306 ◽  
Author(s):  
Shoujuan Shu ◽  
Xibin Feng ◽  
Yuan Wang
Keyword(s):  
Tropical Cyclones ◽  
Essential Role ◽  
Rainfall Distribution ◽  
Landfalling Tropical Cyclones

scholarly journals Intense Precipitation Events Associated with Landfalling Tropical Cyclones in Response to a Warmer Climate and Increased CO2

2014 ◽  
Vol 27 (12) ◽  
pp. 4642-4654 ◽  
Author(s):  
Enrico Scoccimarro ◽  
Silvio Gualdi ◽  
Gabriele Villarini ◽  
Gabriel A. Vecchi ◽  
Ming Zhao ◽  
...  
Keyword(s):  
Tropical Cyclones ◽  
Atmospheric Carbon Dioxide ◽  
Sea Surface ◽  
Special Focus ◽  
Relative Role ◽  
Rainfall Events ◽  
Landfalling Tropical Cyclones ◽  
Precipitation Changes ◽  
Precipitation Events

Abstract In this work the authors investigate possible changes in the intensity of rainfall events associated with tropical cyclones (TCs) under idealized forcing scenarios, including a uniformly warmer climate, with a special focus on landfalling storms. A new set of experiments designed within the U.S. Climate Variability and Predictability (CLIVAR) Hurricane Working Group allows disentangling the relative role of changes in atmospheric carbon dioxide from that played by sea surface temperature (SST) in changing the amount of precipitation associated with TCs in a warmer world. Compared to the present-day simulation, an increase in TC precipitation was found under the scenarios involving SST increases. On the other hand, in a CO2-doubling-only scenario, the changes in TC rainfall are small and it was found that, on average, TC rainfall tends to decrease compared to the present-day climate. The results of this study highlight the contribution of landfalling TCs to the projected increase in the precipitation changes affecting the tropical coastal regions.

scholarly journals Extreme Rainfall from Landfalling Tropical Cyclones in the Eastern United States: Hurricane Irene (2011)

2016 ◽  
Vol 17 (11) ◽  
pp. 2883-2904 ◽  
Author(s):  
Maofeng Liu ◽  
James A. Smith
Keyword(s):  
United States ◽  
Tropical Cyclones ◽  
Extreme Rainfall ◽  
Hurricane Sandy ◽  
Mountainous Terrain ◽  
Eastern United States ◽  
Rainfall Distribution ◽  
Extratropical Transition ◽  
Hurricane Irene ◽  
Landfalling Tropical Cyclones

Abstract Hurricane Irene produced catastrophic rainfall and flooding in portions of the eastern United States from 27 to 29 August 2011. Like a number of tropical cyclones that have produced extreme flooding in the northeastern United States, Hurricane Irene was undergoing extratropical transition during the period of most intense rainfall. In this study the rainfall distribution of landfalling tropical cyclones is examined, principally through analyses of radar rainfall fields and high-resolution simulations using the Weather Research and Forecasting (WRF) Model. In addition to extratropical transition, the changing storm environment at landfall and orographic precipitation mechanisms can be important players in controlling the distribution of extreme rainfall. Rainfall distribution from landfalling tropical cyclones is examined from a Lagrangian perspective, focusing on times of landfall and extratropical transition, as well as interactions of the storm circulation with mountainous terrain. WRF simulations capture important features of rainfall distribution, including the pronounced change in rainfall distribution during extratropical transition. Synoptic-scale analyses show that a deep baroclinic zone developed and strengthened in the left-front quadrant of Irene, controlling rainfall distribution over the regions experiencing most severe flooding. Numerical experiments were performed with WRF to examine the role of mountainous terrain in altering rainfall distribution. Analyses of Hurricane Irene are placed in a larger context through analyses of Hurricane Hannah (2008) and Hurricane Sandy (2012).

Characterization of rainfall distribution and flooding associated with U.S. landfalling tropical cyclones: Analyses of Hurricanes Frances, Ivan, and Jeanne (2004)

2011 ◽  
Vol 116 (D23) ◽  
pp. n/a-n/a ◽  
Author(s):  
Gabriele Villarini ◽  
James A. Smith ◽  
Mary Lynn Baeck ◽  
Timothy Marchok ◽  
Gabriel A. Vecchi
Keyword(s):  
Tropical Cyclones ◽  
Rainfall Distribution ◽  
Landfalling Tropical Cyclones

The Inland Maintenance and Reintensification of Tropical Storm Bill (2015) Part 1: Contributions of the Brown Ocean Effect

2021 ◽  
Author(s):  
Ryann A. Wakefield ◽  
Jeffrey B. Basara ◽  
J. Marshall Shepherd ◽  
Noah Brauer ◽  
Jason C. Furtado ◽  
...  
Keyword(s):  
Tropical Cyclones ◽  
Land Surface ◽  
Heavy Rainfall ◽  
Tropical Storm ◽  
Sea Surface ◽  
Ocean Effect ◽  
Novel Approaches ◽  
Landfalling Tropical Cyclones ◽  
Water Vapor Budget

AbstractLandfalling tropical cyclones (TCs) often decay rapidly due to a decrease in moisture and energy fluxes over land when compared to the ocean surface. Occasionally, however, these cyclones maintain intensity or reintensify over land. Post-landfall maintenance and intensification of TCs over land may be a result of fluxes of moisture and energy derived from anomalously wet soils. These soils act similarly to a warm sea surface, in a phenomenon coined the “Brown Ocean Effect.” Tropical Storm (TS) Bill (2015) made landfall over a region previously moistened by anomalously heavy rainfall and displayed periods of reintensification and maintenance over land. This study evaluates the role of the Brown Ocean Effect on the observed maintenance and intensification of TS Bill using a combination of existing and novel approaches, including the evaluation of precursor conditions at varying temporal scales and making use of composite backward trajectories. Comparisons were made to landfalling TCs with similar paths that did not undergo TC maintenance and/or intensification (TCMI) as well as to TS Erin (2007), a known TCMI case. We show that the antecedent environment prior to TS Bill was similar to other known TCMI cases, but drastically different from the non-TCMI cases analyzed in this study. Furthermore, we show that contributions of evapotranspiration to the overall water vapor budget were non-negligible prior to TCMI cases and that evapotranspiration along storm inflow was significantly (p<0.05) greater for TCMI cases than non-TCMI cases suggesting a potential upstream contribution from the land surface.

scholarly journals Observed Shear-Relative Rainfall Asymmetries Associated with Landfalling Tropical Cyclones

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Xiang Wang ◽  
Haiyan Jiang ◽  
Xun Li ◽  
Jun A. Zhang
Keyword(s):  
Indian Ocean ◽  
Tropical Cyclones ◽  
Vertical Wind Shear ◽  
Northwestern Pacific ◽  
Northern Indian Ocean ◽  
Central Pacific ◽  
Perturbation Energy ◽  
Landfalling Tropical Cyclones ◽  
Upper Level

This study examines the shear-relative rainfall spatial distribution of tropical cyclones (TCs) during landfall based on the 19-year (1998–2016) TRMM satellite 3B42 rainfall estimate dataset and investigates the role of upper-tropospheric troughs on the rainfall intensity and distribution after TCs make a landfall over the six basins of Atlantic (ATL), eastern and central Pacific (EPA), northwestern Pacific (NWP), northern Indian Ocean (NIO), southern Indian Ocean (SIO), and South Pacific (SPA). The results show that the wavenumber 1 perturbation can contribute ∼ 50% of the total perturbation energy of total TC rainfall. Wavenumber 1 rainfall asymmetry presents the downshear-left maxima in the deep-layer vertical wind shear between 200 and 850 hPa for all the six basins prior to making a landfall. In general, wavenumber 1 rainfall tends to decrease less if there is an interaction between TCs and upper-level troughs located at the upstream of TCs over land. The maximum TC rain rate distributions tend to be located at the downshear-left (downshear) quadrant under the high (low)-potential vorticity conditions.

Essential role of Sharpin in TNFα dependent NFκB activation in primary hepatocytes

2012 ◽  
Vol 50 (01) ◽  
Author(s):  
N Lange ◽  
S Sieber ◽  
A Erhardt ◽  
G Sass ◽  
HJ Kreienkamp ◽  
...  
Keyword(s):  
Essential Role ◽  
Primary Hepatocytes
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