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Articles 301 - 330 of 1623

Full-Text Articles in Oceanography and Atmospheric Sciences and Meteorology

The Effect Of Advection On The Three Dimensional Distribution Of Turbulent Kinetic Energy And Its Generation In Idealized Tropical Cyclone Simulations, Joshua B. Wadler, David S. Nolan, Jun A. Zhang, Lynn K. Shay, Joseph B. Olsen, Joseph J. Cione May 2023

The Effect Of Advection On The Three Dimensional Distribution Of Turbulent Kinetic Energy And Its Generation In Idealized Tropical Cyclone Simulations, Joshua B. Wadler, David S. Nolan, Jun A. Zhang, Lynn K. Shay, Joseph B. Olsen, Joseph J. Cione

Publications

The distribution of turbulent kinetic energy (TKE) and its budget terms is estimated in simulated tropical cyclones (TCs) of various intensities. Each simulated TC is subject to storm motion, wind shear, and oceanic coupling. Different storm intensities are achieved through different ocean profiles in the model initialization. For each oceanic profile, the atmospheric simulations are performed with and without TKE advection. In all simulations, the TKE is maximized at low levels (i.e., below 1 km) and ∼0.5 km radially inward of the azimuthal-mean radius of maximum wind speed at 1-km height. As in a previous study, the axisymmetric TKE decreases …


2023 April 27 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Apr 2023

2023 April 27 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 April 20 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Apr 2023

2023 April 20 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


Identifying Gravity Waves Launched By The Hunga Tonga–Hunga Ha’Apai Volcanic Eruption In Mesosphere/Lower-Thermosphere Winds Derived From Condor And The Nordic Meteor Radar Cluster, Gunter Stober, Alan Liu, Alexander Kozlovsky, Zishun Qiao, Witali Krochin, Guochun Shi, Johan Kero, Et Al. Apr 2023

Identifying Gravity Waves Launched By The Hunga Tonga–Hunga Ha’Apai Volcanic Eruption In Mesosphere/Lower-Thermosphere Winds Derived From Condor And The Nordic Meteor Radar Cluster, Gunter Stober, Alan Liu, Alexander Kozlovsky, Zishun Qiao, Witali Krochin, Guochun Shi, Johan Kero, Et Al.

Publications

The Hunga Tonga–Hunga Ha'apai volcano eruption was a unique event that caused many atmospheric phenomena around the globe. In this study, we investigate the atmospheric gravity waves in the mesosphere/lower thermosphere (MLT) launched by the volcanic explosion in the Pacific, leveraging multistatic meteor radar observations from the Chilean Observation Network De Meteor Radars (CONDOR) and the Nordic Meteor Radar Cluster in Fennoscandia. MLT winds are computed using a recently developed 3DVAR+DIV algorithm. We found eastward- and westward-traveling gravity waves in the CONDOR zonal and meridional wind measurements, which arrived 12 and 48 h after the eruption, and we found one …


Storm In A Glass Lesson Plan, Admin Stem For Success Apr 2023

Storm In A Glass Lesson Plan, Admin Stem For Success

STEM for Success Showcase

Lesson Plan and Video Demonstration for the "Storm in a Glass" Activity, which teaches students about precipitation.


2023 April 13 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Apr 2023

2023 April 13 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 April 6 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Apr 2023

2023 April 6 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


An Analysis Of Hurricane Laura's Storm Surge In Cameron Parish Using Synthetic Storm Tracks, Climatology, And Statistics, Cameron Goff Apr 2023

An Analysis Of Hurricane Laura's Storm Surge In Cameron Parish Using Synthetic Storm Tracks, Climatology, And Statistics, Cameron Goff

LSU Master's Theses

Cameron Parish is a large coastal parish in southwest Louisiana that has been impacted by several powerful tropical cyclones. In 2020, the strongest hurricane in recorded history to ever hit this region, Hurricane Laura, set a state record for the highest storm surge measurement at 6.34 meters. I examine the climatology of tropical cyclone landfalls in this parish, looking for trends in intensity and frequency with time. I then compare the extreme surge of Hurricane Laura with a dataset of 645 synthetic tropical cyclones generated and used by the Coastal Hazards System for Louisiana. Plots comparing various meteorological statistics to …


Droughtscape, Spring 2023, National Drought Mitigation Center Apr 2023

Droughtscape, Spring 2023, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

DroughtScape, Spring 2023


2023 April - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University Apr 2023

2023 April - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Reports

No abstract provided.


2023 March 30 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Mar 2023

2023 March 30 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 March 23 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Mar 2023

2023 March 23 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 March 16 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Mar 2023

2023 March 16 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


The Influence Of Complex Coastlines On The Sea Breeze And Convection Initiation In Coastal North Carolina, Logan Howard, Adam L. Houston Mar 2023

The Influence Of Complex Coastlines On The Sea Breeze And Convection Initiation In Coastal North Carolina, Logan Howard, Adam L. Houston

Honors Program: Senior Projects (Public)

The sea breeze is a common phenomenon in coastal regions around the world. Their development and propagation can be treated as a density current. It is well known that many factors influence density current propagation, including wind. Depending on the orientation, the wind speed and shear can enhance or inhibit the development of the sea breeze. In places like eastern North Carolina, complex coastal geography can create river and sound breezes that, upon collision, have the potential to initiate thunderstorms. Using Cloud Model 1, simulations were conducted to model the behavior of the sea breezes in eastern North Carolina and …


2023 March 9 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Mar 2023

2023 March 9 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 March 2 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Mar 2023

2023 March 2 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


Fragility Of The Florida Panhandle's Electrical Transmission Grid To Hurricanes, Zachary D. Schumann Mar 2023

Fragility Of The Florida Panhandle's Electrical Transmission Grid To Hurricanes, Zachary D. Schumann

Theses and Dissertations

The increased frequency and intensity of extreme weather events from climate change necessitates understanding impacts on critical infrastructure, particularly electrical transmission grids. One of the foundational concepts of a grid’s resilience is its robustness to extreme weather events, such as hurricanes. Resilience of the electric grid to high wind speeds is predicated upon the location and physical characteristics of the system components. Previous modeling assessments of electric grid failure were done at the systems level with assumptions on location and type of specific components. To facilitate more explicit adaptation metrics, accurate component-level information is needed. In this study, we build …


2023 March - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University Mar 2023

2023 March - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Reports

No abstract provided.


2023 February 23 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Feb 2023

2023 February 23 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 February 16 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Feb 2023

2023 February 16 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 February 9 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Feb 2023

2023 February 9 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 February 2 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Feb 2023

2023 February 2 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 February - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University Feb 2023

2023 February - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Reports

No abstract provided.


2023 January 26 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Jan 2023

2023 January 26 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 January 19 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Jan 2023

2023 January 19 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 January 12 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Jan 2023

2023 January 12 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


2023 January 5 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Jan 2023

2023 January 5 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


The Future Of Extreme Windstorms In The United States: Insights From Convection-Permitting Simulations, Kristie Kaminski Jan 2023

The Future Of Extreme Windstorms In The United States: Insights From Convection-Permitting Simulations, Kristie Kaminski

Graduate Research Theses & Dissertations

A derecho is a long-lived, convectively induced, extratropical windstorm that produces severe wind gusts and an affiliated damage swath across an extensive area. This peril can generate billions of dollars in losses and poses a significant risk to life, infrastructure, and wind-sensitive industries. While the response of severe convective storms to anthropogenic climate change has received much attention in the literature, research assessing the genitors of derechos—mesoscale convective systems—has focused on understanding potential changes in the United States hydroclimate, not their severe wind potential. To date, there has been no research investigating spatiotemporal changes to derecho activity in the context …


Convection Allowing Simulations Of Hail In Historical And Future Climate Epochs, Jillian Rose Goodin Jan 2023

Convection Allowing Simulations Of Hail In Historical And Future Climate Epochs, Jillian Rose Goodin

Graduate Research Theses & Dissertations

This thesis investigates the potential impact of anthropogenic climate change on hail frequency and intensity, which poses a significant threat to life and property, accounting for annual insured losses of around $30 billion in the U.S. This approach uses convection-allowing dynamically-downscaled regional climate simulations using input data from NCAR's bias-corrected Community Earth System Model to simulate historical and projected future climate regimes under two greenhouse gas emission scenarios. A column maximum diameter hail diagnostic is simulated by the Weather Research and Forecasting regional climate model to identify instances of hail days and size to quantify changes in large hail frequency …


Droughtscape, Winter 2023, National Drought Mitigation Center Jan 2023

Droughtscape, Winter 2023, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

DroughtScape, Winter 2023