Download or read book On the Influence of Tropical Cyclones on the Sea Surface Temperature Field written by C. L. Jordan and published by . This book was released on 1964 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Low frequency Variability of the Tropical North Pacific Sea Surface Temperature Teleconnections written by Sang-Wook Yeh and published by . This book was released on 2003 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Relationship Between Sea Surface Temperature and Maximum Intensity of Tropical Cyclones in the Eastern North Pacific Ocean written by Luke David Whitney and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tropical Cyclones of the Eastern North Pacific and Their Effects on the Climate of the Western United States written by Arthur Vern Douglas and published by . This book was released on 1973 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Influence of Northern Hemisphere Teleconnections on the Geography of Pacific Tropical Cyclone Genesis written by Nicholas Adkins (Ray) and published by . This book was released on 2018 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interrelationships Between Tropical North Pacific Atmospheric Circulation Explosive Volcanism Sea Surface Temperature and Western North Pacific Tropical Storms and Typhoons written by J. M. Harding and published by . This book was released on 1975 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time series of surface atmospheric pressure and sea surface temperature are presented for three areas spanning the tropical North Pacific (Equator to 15N) from the Central American coast to the coast of Asia. Surface pressure time series are shown for the period between 1946 and 1974, while sea surface temperature data and presented for the period between 1962 and 1974. The relation between the Northern Hemisphere manifestation of Walker's 'Southern Oscillation' and the occurrence of warm and cold sea surface temperatures' in the eastern tropical Pacific is shown to support estimates of transport by the Equatorial Countercurrent. Large stratospheric injections of dust and gas by volcanic eruption are shown to generally preceed marked increases in the estimated transport by the Equatorial Countercurrent. Minima of tropical storm and typhoon frequency in the tropical northwest Pacific (especially since 1957) are shown to be associated with low east-west pressure across the equatorial Pacific while frequency maxima are associated with high east-west pressure differences.

Download or read book The Effects of Synoptic Factors on the Intensities of Tropical Cyclones Over the Eastern North Pacific Ocean written by Kevin R. Petty and published by . This book was released on 1997 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Influences on Cold season Cyclones Over the North Pacific Ocean written by Richard E. Danielson and published by . This book was released on 2003 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How Sea Surface Temperature Gradients Contribute to Tropical Cyclone Weakening in the Eastern North Pacific written by Brian Matthew Holliday and published by . This book was released on 2019 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decades of research have fostered a greater understanding of the environmental controls that drive tropical cyclone (TC) intensity change, yet the community has achieved only small improvements in intensity forecasting. Numerous environmental factors impact TC intensity, such as vertical wind shear and sea surface temperatures (SSTs), but little research has focused on establishing if SST change under the TC, or SST gradients, influence these intensity changes. This study investigated three methods to compute SST gradients. The first method calculated the SST change within fixed distances along the track. In the second and third methods, the SST was calculated over the distance traversed by the TC in two separate six-hour periods. By examining 455 24-hour weakening episodes in the eastern North Pacific, this study revealed that the first SST gradient method explained the highest 24-hour weakening variance for TCs located within SSTs at or lower than 26.5 degrees C.

Download or read book Characterizing Surface Enthalpy Flux and Ocean Patterns in Rapidly Intensifying Tropical Cyclones written by Mason Andrew Clark Bray and published by . This book was released on 2017 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis to determine physical and spatial patterns of the surface latent heat flux (LHF) and near surface (5m) salinity (NSS) beneath tropical cyclones (TCs) in the North Atlantic and eastern North Pacific basins during the first 24 hours of rapid intensification (RI) was conducted using empirical orthogonal function (EOF) analysis. To determine if these patterns were unique to RI, TC RI cases were compared to three non-RI intensification thresholds, 10 kt, 15 kt and 20 kt, for both LHF and NSS. Though similarities exist between non-RI and RI cases physical and spatial patterns unique to the RI cases did exist. Sea surface temperatures associated with statistically identified TC groups were assessed for their potential influence on RI. While inconclusive in the eastern North Pacific, NSS in the Atlantic may play a role for RI TCs in areas affected by river discharge from South America.

Download or read book The Influence of Sea Surface Temperature Upon Tropical Cyclone Tracks written by Liam Harrington-Missin and published by . This book was released on 2006 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impacts of Climate Variability and Change on Eastern North Pacific Tropical Cyclones written by Jerry Yu Jien and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Damages inflicted by tropical cyclones (TCs) worldwide have increased in recent decades with climate change and variability playing key roles in altering TC characteristics. In this thesis, the impact of natural variability is explored, using ENSO conditions, and climate change on the nature of eastern North Pacific (ENP) TCs. The first research objective of the thesis focused on a spatial-temporal separation of ENP storms based on El Niño-Southern Oscillation (ENSO) phase (temporal variability, El Niño, La Niña, neutral) and regional storm stratification (spatial variability, east and west). The western development region (WDR) storms were found to be more sensitive to influences of ENSO. In particular, during El Niño years, there were more WDR storms. The second research objective explored the ENSO impact on the trajectory of ENP storm tracks by examining the locations for genesis and downgradation points and storm track movements. The storm tracks were strongly influenced by ENSO phases, with significant differences detected for many ENSO pairings. However, when storm data are regionally separated the latitudinal movement of WDR storms tend to be more extensive during El Niño conditions and as a result there are more landfalling TCs. The third research objective of the dissertation explored the importance of near-time sea surface temperatures (SSTs) on storm intensities. SST thresholds were found that were critical for the sustenance of stronger ENP storms that achieve hurricane and major hurricane status. Significantly, the minimum SST threshold varied between the MDR subdivisions. For major hurricanes, the SST requirements for EDR and WDR are substantially lower than that found in the North Atlantic basin at 28.25°C. Although SSTs appear to contribute little in determining the ultimate maximum storm intensity for ENP storms in general, when ENP storms are regionally divided, SSTs are found to be highly associated with the WDR major hurricanes. Evidently the recent warming shown in the distribution of storm-bounded SSTs has led to the rise of maximum potential intensity for ENP storms. Overall, the common theme that emerged from these three studies is that ENP storm characteristics associated with WDR are inherently more sensitive to climate variability and change.

Download or read book Characterizing Surface Enthalpy Flux and Ocean Patterns in Rapidly Intensifying Tropical Cyclones written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis to determine physical and spatial patterns of the surface latent heat flux (LHF) and near surface (5m) salinity (NSS) beneath tropical cyclones (TCs) in the North Atlantic and eastern North Pacific basins during the first 24 hours of rapid intensification (RI) was conducted using empirical orthogonal function (EOF) analysis. To determine if these patterns were unique to RI, TC RI cases were compared to three non-RI intensification thresholds, 10 kt, 15 kt and 20 kt, for both LHF and NSS. Though similarities exist between non-RI and RI cases physical and spatial patterns unique to the RI cases did exist. Sea surface temperatures associated with statistically identified TC groups were assessed for their potential influence on RI. While inconclusive in the eastern North Pacific, NSS in the Atlantic may play a role for RI TCs in areas affected by river discharge from South America.

Download or read book The Relationship Between Sea Surface Temperature and Maximum Intensity of Tropical Cyclones in the Eastern North Pacific Ocean written by Luke David Whitney and published by . This book was released on 1995 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Remote Impacts of a Western Pacific Tropical Cyclone written by Craig E. Jakus and published by . This book was released on 1995 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The short term teleconnections arising from an individual tropical cyclone in tne western Pacific (typhoon Seth, October 1994) were examined using an operational global data assimilation system and numerical weather prediction model. During the data assimilation, the model's initial conditions were modified using a tropical cyclone bogusing procedure that either maintained or eliminated the individual storm. These different initial conditions were used in six extended-range forecasts of about 3.5 weeks duration. Three of these forecasts simulated the atmosphere with tne tropical cyclone and three without the storm. The ensemble average differences between the forecasts with the storm and those without it were used to infer the global teleconnection response to the tropical cyclone. This response was dominated by a strong and persistent Rossby wave train that extended from east Asia across the North Pacific into North America. This wave train was initiated when an anticyclonic circulation formed near Japan as the tropical cyclone approached the east Asian jet. The anticyclone formation was primarily the result of two factors: (1) vortex stretching; and (2) absolute vorticity advection as divergent outflow from the tropical cyclone crossed the large absolute vorticity gradient of the east Asian jet. The wave response was quasi-stationary. However, the basic wave train (i.e., the teleconnection pattern) developed within a week due to a relatively rapid eastward propagation of wave energy across the North Pacific and North America. In regions of strong jet flow, this propagation tended to parallel the flow while in regions of weaker flow, the propagation had stronger poleward or equatorward components. The wave train intensified well after the tropical cyclone and the initial wave formation process had dissipated.

Download or read book A Compilation of Eastern and Central North Pacific Tropical Cyclone Data written by Gail M. Brown and published by . This book was released on 1982 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intraseasonal Large Scale Circulations and Tropical Cyclone Activity Over the Western North Pacific During Boreal Summer written by Tracey L. Delk and published by . This book was released on 2004-06-01 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large-scale circulations in the 15-25 day period over the western North Pacific during northern summer were determined using the leading modes of a Singular Value Decomposition of 850 hPa winds and outgoing longwave radiation. Composites were constructed to define the wave patterns' structural characteristics. Their evolution is characterized by alternating cyclonic and anticyclonic equatorial anomalies that are linked to anomalous convective activity. Mid-latitude perturbations appear to contribute to the growth of new equatorial disturbances. Variability within the cycle is examined relative to variations in the basic state vertical wind shear and zonal wind convergence or divergence in the region equator-10 deg N, 140 deg E-160 deg E. For the 50 cases in a basic state with easterly vertical wind shear and convergence, westward- moving waves propagate farther northwestward, wavelength contraction is greater, their orientation changes from east-west to southwest-northeast, and waves appear to be coupled with a Southern Hemisphere mid-latitude wave train. For the zonal wind divergence set, wave activity occurs farther eastward, circulations maintain a longer wavelength and more zonal orientation, and linkage with the Southern Hemisphere mid-latitudes is minimal. A statistically-significant relationship exists between the 15-25 day wave phase and tropical cyclone activity. Formation frequency and preferred locations are modulated by the 15-25 day wave.