Records
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Author
Buchanan, S. ; Misra, V. ; Bhardwaj, A.
Title
https://rmets.onlinelibrary.wiley.com/doi/10.1002/joc.5450
Type
$loc['typeJournal Article']
Year
2018
Publication
International Journal of Climatology
Abbreviated Journal
Volume
38
Issue
6
Pages
2651-2661
Keywords
Abstract
The integrated kinetic energy (IKE) of a tropical cyclone (TC), a volume integration of the surface winds around the centre of the TC, is computed from a comprehensive surface wind (National Aeronautics and Space Administration’s (NASA) cross‐calibrated multi‐platform [CCMP]) analysis available over the global oceans to verify against IKE from wind radii estimates of extended best‐track data maintained by NOAA for the North Atlantic TCs. It is shown that CCMP surface wind analysis severely underestimates IKE largely from not resolving hurricane force winds for majority of the Atlantic TCs, under sampling short‐lived and small‐sized TCs. The seasonal cycle of the North Atlantic TC IKE also verifies poorly in the CCMP analysis. In this article we introduce proxy IKE (PIKE) based on the kinetic energy of the winds at the radius of the last closed isobar (ROCI), which shows promise for a wide range of TC sizes including the smaller‐sized TCs unresolved in the CCMP data set.
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
551
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Author
Carstens, J
Title
Tropical Cyclogenesis from Self-aggregated Convection in Numerical Simulations of Rotating Radiative-convective Equilibrium
Type
$loc['typeManuscript']
Year
2019
Publication
Dissertations & Theses
Abbreviated Journal
Dissertations & Theses
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Issue
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Abstract
Organized convection is of critical importance in the tropical atmosphere. Recent advances in numerical modeling have revealed that moist convection can interact with its environment to transition from a quasi-random to organized state. This phenomenon, known as convective self-aggregation,is aided by feedbacks involving clouds, water vapor, and radiation that increase the spatial variance of column-integrated frozen moist static energy. Prior studies have shown self-aggregation to takeseveral different forms, including that of spontaneous tropical cyclogenesis in an environment of rotating radiative-convective equilibrium (RCE). This study expands upon previous work to address the processes leading to tropical cyclogenesis in this rotating RCE framework. More specifically,a three-dimensional, cloud-resolving numerical model is used to examine the self-aggregation of convection and potential cyclogenesis, and the background planetary vorticity is varied on an f-plane across simulations to represent a range of deep tropical and near-equatorial environments.Convection is initialized randomly in an otherwise homogeneous environment, with no background wind, precursor disturbance, or other synoptic-scale forcing.All simulations with planetary vorticity corresponding to latitudes from 10°to 20°generate intense tropical cyclones, with maximum wind speeds of 80 m s−1or above. Time to genesis varies widely, even within a five-member ensemble of 20°simulations, reflecting a potential degree of stochastic variability based in part on the initial random distribution of convection. Shared across this so-called “high-f” group is the emergence of a midlevel vortex in the days leading to genesis,which has dynamic and thermodynamic implications on its environment that facilitate the spinup of a low-level vortex. Tropical cyclogenesis is possible in this model even at values of Coriolis parameter as low as that representative of 1°. In these experiments, convection self-aggregates into a quasi-circular cluster, which then begins to rotate and gradually strengthen into a tropical storm, aided by near-surface inflow and shallow overturning radial circulations aloft within the aggregated cluster. Other experiments at these lower Coriolis parameters instead self-aggregate into an elongated band and fail to undergo cyclogenesis over the 100-day simulation. A large portion of this study is devoted to examining in greater detail the dynamic and thermodynamic evolution of cyclogenesis in these experiments and comparing the physical mechanisms to current theories.
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Florida State University - FCLA; ProQuest Dissertations & Theses Global
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Approved
$loc['no']
Call Number
COAPS @ user @
Serial
1054
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Author
Ahern, Kyle K.
Title
Hurricane Boundary Layer Structure during Intensity Change: An Observational and Numerical Analysis
Type
$loc['typeManuscript']
Year
2019
Publication
Florida State University College of Arts and Sciences
Abbreviated Journal
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$loc['no']
Call Number
COAPS @ user @
Serial
1103
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Author
Cabrera, V.E., D. Solis, and D. Letson
Title
Optimal crop insurance under climate variability: contrasting insurer and farmer interests
Type
$loc['typeJournal Article']
Year
2009
Publication
Transactions of the ASABE
Abbreviated Journal
Volume
52
Issue
2
Pages
623-631
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$loc['no']
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COAPS @ mfield @
Serial
657
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Author
Goni, G. ; DeMaria, M. ; Knaff, J. ; Sampson, C. ; Ginis, I. ; Bringas, F. ; Mavume, A. ; Lauer, C. ; Lin, I.I. ; Ali, M.M. ; Sandery, P. ; Ramos-Buarque, S. ; Kang, K.R. ; Mehra, A. ; Chassignet, E. ; Halliwell, G.
Title
Applications of Satellite-Derived Ocean Measurements to Tropical Cyclone Intensity Forecasting
Type
$loc['typeJournal Article']
Year
2009
Publication
Oceanography
Abbreviated Journal
Oceanog.
Volume
22
Issue
3
Pages
190-197
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Abstract
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Place of Publication
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Summary Language
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Series Editor
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Series Issue
Edition
ISSN
1042-8275
ISBN
Medium
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
384
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Author
Dombrowsky, E. ; Bertino, L. ; Brassington, G. ; Chassignet, E. ; Davidson, F. ; Hurlburt, H. ; Kamachi, M. ; Lee, T. ; Martin, M. ; Mei, S. ; Tonani, M.
Title
GODAE Systems in Operation
Type
$loc['typeJournal Article']
Year
2009
Publication
Oceanography
Abbreviated Journal
Oceanog.
Volume
22
Issue
3
Pages
80-95
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Summary Language
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Series Editor
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Series Issue
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ISSN
1042-8275
ISBN
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
382
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Author
Hurlburt, H. ; Brassington, G. ; Drillet, Y. ; Kamachi, M. ; Benkiran, M. ; Bourdallé-Badie, R. ; Chassignet, E. ; Jacobs, G. ; Galloudec, O. ; Lellouche, J.-M. ; Metzger, E.J. ; Oke, P. ; Pugh, T. ; Schiller, A. ; Smedstad, O. ; Tranchant, B. ; Tsujino, H. ; Usui, N. ; Wallcraft, A.
Title
High-Resolution Global and Basin-Scale Ocean Analyses and Forecasts
Type
$loc['typeJournal Article']
Year
2009
Publication
Oceanography
Abbreviated Journal
Oceanog.
Volume
22
Issue
3
Pages
110-127
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Summary Language
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ISSN
1042-8275
ISBN
Medium
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
675
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Author
Cornillon, P. ; Adams, J. ; Blumenthal, M.B. ; Chassignet, E. ; Davis, E. ; Hankin, S. ; Kinter, J. ; Mendelssohn, R. ; Potemra, J. ; Srinivasan, A. ; Sirott, J.
Title
NVODS and the Development of OPeNDAP
Type
$loc['typeJournal Article']
Year
2009
Publication
Oceanography
Abbreviated Journal
Oceanog.
Volume
22
Issue
2
Pages
116-127
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Abstract
Address
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Thesis
Publisher
Place of Publication
Editor
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Summary Language
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Series Editor
Series Title
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Series Issue
Edition
ISSN
1042-8275
ISBN
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
391
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Author
Chassignet, E. ; Hurlburt, H. ; Metzger, E.J. ; Smedstad, O. ; Cummings, J. ; Halliwell, G. ; Bleck, R. ; Baraille, R. ; Wallcraft, A. ; Lozano, C. ; Tolman, H. ; Srinivasan, A. ; Hankin, S. ; Cornillon, P. ; Weisberg, R. ; Barth, A. ; He, R. ; Werner, F. ; Wilkin, J.
Title
US GODAE: Global Ocean Prediction with the HYbrid Coordinate Ocean Model (HYCOM)
Type
$loc['typeJournal Article']
Year
2009
Publication
Oceanography
Abbreviated Journal
Oceanog.
Volume
22
Issue
2
Pages
64-75
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Abstract
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1042-8275
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$loc['no']
Call Number
COAPS @ mfield @
Serial
390
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Author
Hernandez, F. ; Bertino, L. ; Brassington, G. ; Chassignet, E. ; Cummings, james ; Davidson, F. ; Drévillon, M. ; Garric, G. ; Kamachi, M. ; Lellouche, J.-M. ; Mahdon, R. ; Martin, M. ; Ratsimandresy, A. ; Regnier, C.
Title
Validation and Intercomparison Studies Within GODAE
Type
$loc['typeJournal Article']
Year
2009
Publication
Oceanography
Abbreviated Journal
Oceanog.
Volume
22
Issue
3
Pages
128-143
Keywords
Abstract
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Summary Language
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Series Editor
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Series Issue
Edition
ISSN
1042-8275
ISBN
Medium
Area
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Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
383
Permanent link to this record