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Journal articles on the topic 'Storm morphology'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Stein, Thorwald H. M., Robin J. Hogan, Kirsty E. Hanley, et al. "The Three-Dimensional Morphology of Simulated and Observed Convective Storms over Southern England." Monthly Weather Review 142, no. 9 (2014): 3264–83. http://dx.doi.org/10.1175/mwr-d-13-00372.1.

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A set of high-resolution radar observations of convective storms has been collected to evaluate such storms in the Met Office Unified Model during the Dynamical and Microphysical Evolution of Convective Storms (DYMECS) project. The 3-GHz Chilbolton Advanced Meteorological Radar was set up with a scan-scheduling algorithm to automatically track convective storms identified in real time from the operational rainfall radar network. More than 1000 storm observations gathered over 15 days in 2011 and 2012 are used to evaluate the model under various synoptic conditions supporting convection. In ter

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Marmoush, Ramy Y., and Ryan P. Mulligan. "OBSERVATIONS OF BEACH-DUNE MORPHOGOLICAL RESPONSE TO STORM WAVES USING LIDAR BATHYMETRIC MAPPING IN A WAVE BASIN." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 5. http://dx.doi.org/10.9753/icce.v36.sediment.5.

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Waves during major storms can cause significant changes to coastal morphology (Lee et al., 1998). The beach-dune system is known to be highly vulnerable to erosion when the wave run-up exceeds the threshold of the base of the dune in the collision regime, according to the Storm Impact scale defined by Sallenger (2000). Detailed bathymetric measurements are very difficult to obtain during storms due to the hazardous wave conditions. However, bathymetric surveys can be easily and intermittently performed during smaller scale physical model experiments (e.g., Hamilton et al., 2001) and high resol

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Markowski, Paul, and Yvette Richardson. "On the Classification of Vertical Wind Shear as Directional Shear versus Speed Shear." Weather and Forecasting 21, no. 2 (2006): 242–47. http://dx.doi.org/10.1175/waf897.1.

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Abstract Vertical wind shear is commonly classified as “directional” or “speed” shear. In this note, these classifications are reviewed and their relevance discussed with respect to the dynamics of convective storms. In the absence of surface drag, storm morphology and evolution only depend on the shape and length of a hodograph, on which the storm-relative winds depend; that is, storm characteristics are independent of the translation and rotation of a hodograph. Therefore, traditional definitions of directional and speed shear are most relevant when applied to the storm-relative wind profile

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Li, Honghai, Lihwa Lin, and Kelly A. Burks-Copes. "NUMERICAL MODELING OF COASTAL INUNDATION AND SEDIMENTATION BY STORM SURGE, TIDES, AND WAVES AT NORFOLK, VIRGINIA, USA." Coastal Engineering Proceedings 1, no. 33 (2012): 54. http://dx.doi.org/10.9753/icce.v33.sediment.54.

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A nearshore hydrodynamic and sediment transport model was developed to simulate synthetic storms with design SLR scenarios surrounding the military installations in Norfolk, Virginia. Foreseeable risk and effect of storm surge damage accompanied by waves, tides, and Sea Level Rise (SLR) were examined. The final results include the evaluation of impacts for five SLR (0.0, 0.5, 1.0, 1.5, and 2.0 m) and three storm conditions (50-yr, 100-yr return tropical storms, and a winter storm). Associated with the storm surge and SLR, extensive inundation will occur at the Naval Station Norfolk, approximat

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Burns, A. G., T. L. Killeen, and R. G. Roble. "Thermospheric heating away from the auroral oval during geomagnetic storms." Canadian Journal of Physics 70, no. 7 (1992): 544–52. http://dx.doi.org/10.1139/p92-089.

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Model predictions indicate that the high-latitude thermosphere near the F2 peak undergoes strong heating during geomagnetic storms. Experimental studies at middle and equatorial latitudes have indicated that heating occurs during geomagnetic storms, although the overall morphology of these temperature changes is not clear. In this paper we use data from the DE-2 (dynamics explorer) satellite to study this morphology at middle and high latitudes, and then use a simulation of the November 24, 1982 storm, by the NCAR–TIGCM, to compare model output and data on a "one-on-one" basis for an individua

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Palermo, Rose V., Anastasia Piliouras, Travis E. Swanson, Andrew D. Ashton, and David Mohrig. "The effects of storms and a transient sandy veneer on the interannual planform evolution of a low-relief coastal cliff and shore platform at Sargent Beach, Texas, USA." Earth Surface Dynamics 9, no. 5 (2021): 1111–23. http://dx.doi.org/10.5194/esurf-9-1111-2021.

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Abstract. Coastal cliff erosion is alongshore-variable and episodic, with retreat rates that depend upon sediment as either tools of abrasion or protective cover. However, the feedbacks between coastal cliff planform morphology, retreat rate, and sediment cover are poorly quantified. This study investigates Sargent Beach, Texas, USA, at the annual to interannual scale to explore (1) the relationship between temporal and spatial variability in cliff retreat rate, roughness, and sinuosity and (2) the response of retreat rate and roughness to changes in sand and shell hash cover of the underlying

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Mendillo, M., and C. Narvaez. "Ionospheric storms at geophysically-equivalent sites – Part 1: Storm-time patterns for sub-auroral ionospheres." Annales Geophysicae 27, no. 4 (2009): 1679–94. http://dx.doi.org/10.5194/angeo-27-1679-2009.

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Abstract. The systematic study of ionospheric storms has been conducted primarily with groundbased data from the Northern Hemisphere. Significant progress has been made in defining typical morphology patterns at all latitudes; mechanisms have been identified and tested via modeling. At higher mid-latitudes (sites that are typically sub-auroral during non-storm conditions), the processes that change significantly during storms can be of comparable magnitudes, but with different time constants. These include ionospheric plasma dynamics from the penetration of magnetospheric electric fields, enha

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Ellis, Jean T., Michelle E. Harris, Mayra A. Román-Rivera, J. Brianna Ferguson, Peter A. Tereszkiewicz, and Sean P. McGill. "Application of the Saffir-Simpson Hurricane Wind Scale to Assess Sand Dune Response to Tropical Storms." Journal of Marine Science and Engineering 8, no. 9 (2020): 670. http://dx.doi.org/10.3390/jmse8090670.

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Over one-third of the Earth’s population resides or works within 200 km of the coast. The increasing threat of coastal hazards with predicted climate change will impact many global citizens. Coastal dune systems serve as a natural first line of defense against rising sea levels and coastal storms. This study investigated the volumetric changes of two dune systems on Isle of Palms, South Carolina, USA prior to and following Hurricanes Irma (2017) and Florence (2018), which impacted the island as tropical storms with different characteristics. Irma had relatively high significant wave heights an

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Mickey, Rangley C., Patricia S. Dalyander, Robert McCall, and Davina L. Passeri. "Sensitivity of Storm Response to Antecedent Topography in the XBeach Model." Journal of Marine Science and Engineering 8, no. 10 (2020): 829. http://dx.doi.org/10.3390/jmse8100829.

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Antecedent topography is an important aspect of coastal morphology when studying and forecasting coastal change hazards. The uncertainty in morphologic response of storm-impact models and their use in short-term hazard forecasting and decadal forecasting is important to account for when considering a coupled model framework. This study provided a methodology to investigate uncertainty of profile response within the storm impact model XBeach related to varying antecedent topographies. A parameterized island Gaussian fit (PIGF) model generated an idealized baseline profile and a suite of idealiz

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Lucrezi, Serena, Thomas A. Schlacher, and Wayne Robinson. "Can storms and shore armouring exert additive effectson sandy-beach habitats and biota?" Marine and Freshwater Research 61, no. 9 (2010): 951. http://dx.doi.org/10.1071/mf09259.

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Increased storminess is a likely consequence of global climate change; its effects may be most dramatic on coasts dominated by sandy beaches. This scenario demands that the impacts of storms and the role of armouring structures, constructed as storm defences, are better understood. Here, we assess how a relatively small storm affected beach morphology and macrobenthos, and whether a seawall can modulate such impacts. The study system was a small (<1.5 km long) beach, bisected into parts with and without a seawall. The beach became narrower and steeper during the storm, when 26% of the subae

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Xuan Tinh, Nguyen, Magnus Larson, Chantal Donnelly, and Hitoshi Tanaka. "LABORATORY EXPERIMENT ON CROSS-SHORE BARRIER SPIT EVOLUTION BY STORM DYNAMICS." Coastal Engineering Proceedings 1, no. 32 (2011): 32. http://dx.doi.org/10.9753/icce.v32.sediment.32.

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Every year there are many severe storms occurring around the world, in general, and in Japan, in particular. The occurrence of storms is expected to increase because of the global warming effects. An increasing wave height together with a rising mean water level during a storm create a high possibility for waves to overtop the beach crest causing a lot of sediment to be eroded to offshore areas or deposited in the inland direction. The study of the barrier island response to storms has therefore become very important in terms of sediment transport and beach morphology change, as well as damage

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Ghofrani, Zahra, Victor Sposito, and Robert Faggian. "Designing a Pond and Evaluating its Impact Upon Storm-Water Quality and Flow: A Case Study in Rural Australia." Ecological Chemistry and Engineering S 26, no. 3 (2019): 475–91. http://dx.doi.org/10.1515/eces-2019-0036.

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Abstract Storm-water management is a common concern in rural catchments where development-related growth causes increases of storm-water flows. Greater magnitude and frequency of storm-water create greater challenges for mitigating storm-water damage and improving water quality. The concept of Blue-Green Infrastructure (BGI) as a solution incorporates a wide range of applicable components with the aim of minimizing the effect of catchment development on flow regimes without changing the watershed morphology. BGI components manage storm-water by decreasing impermeable cover and expanding natura

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Troch, Peter A., Francois P. De Troch, Marco Mancini, and Eric F. Wood. "Stream network morphology and storm response in humid catchments." Hydrological Processes 9, no. 5-6 (1995): 575–87. http://dx.doi.org/10.1002/hyp.3360090508.

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Nesbitt, Stephen W., Robert Cifelli, and Steven A. Rutledge. "Storm Morphology and Rainfall Characteristics of TRMM Precipitation Features." Monthly Weather Review 134, no. 10 (2006): 2702–21. http://dx.doi.org/10.1175/mwr3200.1.

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Abstract Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR), TRMM Microwave Imager (TMI), and Visible and Infrared Scanner (VIRS) observations within the Precipitation Feature (PF) database have been analyzed to examine regional variability in rain area and maximum horizontal extent of rainfall features, and role of storm morphology on rainfall production (and thus modes where vertically integrated heating occurs). Particular attention is focused on the sampling geometry of the PR and the resulting impact on PF statistics across the global Tropics. It was found that 9% of rain

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Falk, Nicholas M., Adele L. Igel, and Matthew R. Igel. "The Relative Impact of Ice Fall Speeds and Microphysics Parameterization Complexity on Supercell Evolution." Monthly Weather Review 147, no. 7 (2019): 2403–15. http://dx.doi.org/10.1175/mwr-d-18-0417.1.

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Abstract The use of bin or bulk microphysics schemes in model simulations frequently produces large changes in the simulated storm and precipitation characteristics, but it is still unclear which aspects of these schemes give rise to these changes. In this study, supercell simulations using either a bin or a double-moment bulk microphysics scheme are conducted with the Regional Atmospheric Modeling System (RAMS). The two simulations produce very different storm morphologies. An additional simulation is run for each scheme in which the diameter–fall speed relationships for ice hydrometeors are

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Biqiang, Zhao, Wan Weixing, Liu Libo, and Mao Tian. "Morphology in the total electron content under geomagnetic disturbed conditions: results from global ionosphere maps." Annales Geophysicae 25, no. 7 (2007): 1555–68. http://dx.doi.org/10.5194/angeo-25-1555-2007.

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Abstract. Using 8-year global ionosphere maps (GIMs) of TEC products from the Jet Propulsion Laboratory (JPL), we make a statistical study on the morphology of the global ionospheric behaviors with respect to the geomagnetic disturbances. Results show that the behaviors of TEC during geomagnetic storm present clear seasonal and local time variations under geomagnetic control in a similar way as those of NmF2 (Field and Rishbeth, 1997). A negative phase of TEC occurs with high probability in the summer hemisphere and most prominent near the geomagnetic poles, while a positive phase is obvious i

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Han, Lei, Shengxue Fu, Lifeng Zhao, Yongguang Zheng, Hongqing Wang, and Yinjing Lin. "3D Convective Storm Identification, Tracking, and Forecasting—An Enhanced TITAN Algorithm." Journal of Atmospheric and Oceanic Technology 26, no. 4 (2009): 719–32. http://dx.doi.org/10.1175/2008jtecha1084.1.

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Abstract Storm identification, tracking, and forecasting make up an essential part of weather radar and severe weather surveillance operations. Existing nowcasting algorithms using radar data can be generally classified into two categories: centroid and cross-correlation tracking. Thunderstorm Identification, Tracking, and Nowcasting (TITAN) is a widely used centroid-type nowcasting algorithm based on this paradigm. The TITAN algorithm can effectively identify, track, and forecast individual convective storm cells, but TITAN tends to provide incorrect identification, tracking, and forecasting

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Charbonneau, Bianca, and Brenda Casper. "WIND TUNNEL TESTS OF HOW COASTAL PLANTS FEEDBACK ON DUNE SHAPE." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 71. http://dx.doi.org/10.9753/icce.v36.sediment.71.

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Theoretical evolution of a coastal dune system starts at the individual plant level with the formation of bedforms, nebkha and shadow dunes, around plants. Over time, these initial bedforms can evolve into a fully developed foredune and eventually a complex dune system capable of buffering upland coastal areas against high tides and storms. Recent studies suggest that dunebuilding plant species may differ in their sand trapping efficiency and they may support different topographies, building dunes morphologically similar to their own stature â€“ i.e. a taller steeper plant would build a taller

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Klimenko, Maxim V., Vladimir V. Klimenko, Irina E. Zakharenkova, et al. "Similarity and differences in morphology and mechanisms of the <i>fo</i>F2 and TEC disturbances during the geomagnetic storms on 26–30 September 2011." Annales Geophysicae 35, no. 4 (2017): 923–38. http://dx.doi.org/10.5194/angeo-35-923-2017.

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Abstract. This study presents an analysis of the ground-based observations and model simulations of ionospheric electron density disturbances at three longitudinal sectors (eastern European, Siberian and American) during geomagnetic storms that occurred on 26–30 September 2011. We use the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) to reveal the main mechanisms influencing the storm-time behavior of the total electron content (TEC) and the ionospheric F2 peak critical frequency (foF2) during different phases of geomagnetic storms. During the storm's

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Romine, Glen S., Donald W. Burgess, and Robert B. Wilhelmson. "A Dual-Polarization-Radar-Based Assessment of the 8 May 2003 Oklahoma City Area Tornadic Supercell." Monthly Weather Review 136, no. 8 (2008): 2849–70. http://dx.doi.org/10.1175/2008mwr2330.1.

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Abstract On 8 May 2003, a tornadic supercell tracked through portions of the Oklahoma City, Oklahoma, metropolitan area and produced violent damage along portions of its path. This storm passed through the dense in situ radar network in central Oklahoma and provided close-range operational, prototype polarimetric and terminal Doppler weather radar observations of the storm as it made the transition into the tornadic phase. The time-evolving polarimetric features were scrutinized with regard to storm morphology, particularly as related to the development of a rear-flank downdraft pulse within t

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Li, Honghai, Mitch Brown, Nicholas Kraus, Thomas Smith, and Jessica Podoski. "EVALUATION OF A PROPOSED CHANNEL ON CIRCULATION AND MORPHOLOGY CHANGE AT KAWAIHAE HARBOR AND PELEKANE BAY, HAWAII, USA." Coastal Engineering Proceedings 1, no. 32 (2011): 79. http://dx.doi.org/10.9753/icce.v32.sediment.79.

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In an effort to improve the water quality and restore marine habitats in Pelekane Bay (PB), installation of a circulation channel was proposed with the intent of enhancing water circulation in PB through Kawaihae Deep Draft Harbor (KDDH) and flushing accumulated sediment out of PB. This study was conducted to investigate the hydraulics and sediment transport consequences of dredging such a channel. The coupled wave, flow, and sediment transport Coastal Modeling System (CMS) was applied during a non-storm and a typical winter (storms) time interval. CMS results were analyzed and compared betwee

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Ma, Q., Y. Liu, C. Liu, J. Ma, and H. He. "A comprehensive characterisation of Asian dust storm particles: chemical composition, reactivity to SO<sub>2</sub>, and hygroscopic property." Atmospheric Chemistry and Physics Discussions 10, no. 4 (2010): 8899–925. http://dx.doi.org/10.5194/acpd-10-8899-2010.

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Abstract. Mineral dust comprises of a significant fraction of the globe's aerosol loading. Yet it remains the largest uncertainty in future climate predictions due to the complexity in its components and physico-chemical properties. Multi-analysis methods, including SEM-EDX, FTIR, BET, TPD/mass, and Knudsen cell/mass, were used in the present study to characterise Asian dust storm particles. The morphology, element fraction, source distribution, true uptake coefficient of SO2 and hygroscopic behaviour were studied. The major components of Asian dust storm particles were found to consist of alu

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Mendillo, M., and C. Narvaez. "Ionospheric storms at geophysically-equivalent sites – Part 2: Local time storm patterns for sub-auroral ionospheres." Annales Geophysicae 28, no. 7 (2010): 1449–62. http://dx.doi.org/10.5194/angeo-28-1449-2010.

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Abstract. The response of the mid-latitude ionosphere to geomagnetic storms depends upon several pre-storm conditions, the dominant ones being season and local time of the storm commencement (SC). The difference between a site's geographic and geomagnetic latitudes is also of major importance since it governs the blend of processes linked to solar production and magnetospheric input, respectively. Case studies of specific storms using ionospheric data from both hemispheres are inherently dominated by seasonal effects and the various local times versus longitude of the SCs. To explore inter-hem

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Cander, Ljiljana R. "Mid-Latitude Single Station F region Storm Morphology and Forecast." Acta Geophysica 64, no. 2 (2016): 541–66. http://dx.doi.org/10.1515/acgeo-2016-0007.

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Morales-Márquez, Verónica, Alejandro Orfila, Gonzalo Simarro, et al. "Numerical and remote techniques for operational beach management under storm group forcing." Natural Hazards and Earth System Sciences 18, no. 12 (2018): 3211–23. http://dx.doi.org/10.5194/nhess-18-3211-2018.

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Abstract. The morphodynamic response of a microtidal beach under a storm group is analyzed, and the effects of each individual event are inferred from a numerical model, in situ measurements and video imaging. The combination of these approaches represents a multiplatform tool for beach management, especially during adverse conditions. Here, the morphodynamic response is examined during a period with a group of three storms. The first storm, with moderate conditions (Hs∼1 m during 6 h), eroded the aerial beach and generated a submerged sandbar in the breaking zone. The bar was further directed

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Oliver, Thomas S. N., and Toru Tamura. "Sub-centennially resolved behavior of an accreting sandy shoreline over the past ∼ 1000 years." Journal of Sedimentary Research 91, no. 2 (2021): 211–18. http://dx.doi.org/10.2110/jsr.2020.074.

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ABSTRACT Coastal ridge plains represent a valuable record of past shoreline deposition. However, there remain questions regarding shoreline behavior on intermediate timescales (sub-centennial), the impact of storms, and process of ridge genesis. We address these questions through high-resolution reconstruction of the sandy-beach progradation at Boydtown Beach in Twofold Bay, southeastern Australia, over the past 1000 years using ground-penetrating radar (GPR) and optically stimulated luminescence (OSL) dating. GPR profiles are dominated by seaward-dipping reflections that result from beach and

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Grases, Albert, Vicente Gracia, Manuel García-León, Jue Lin-Ye, and Joan Pau Sierra. "Coastal Flooding and Erosion under a Changing Climate: Implications at a Low-Lying Coast (Ebro Delta)." Water 12, no. 2 (2020): 346. http://dx.doi.org/10.3390/w12020346.

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Episodic coastal hazards associated to sea storms are responsible for sudden and intense changes in coastal morphology. Climate change and local anthropogenic activities such as river regulation and urban growth are raising risk levels in coastal hotspots, like low-lying areas of river deltas. This urges to revise present management strategies to guarantee their future sustainability, demanding a detailed diagnostic of the hazard evolution. In this paper, flooding and erosion under current and future conditions have been assessed at local scale at the urban area of Riumar, a touristic enclave

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Potvin, Corey K., Patrick S. Skinner, Kimberly A. Hoogewind, et al. "Assessing Systematic Impacts of PBL Schemes on Storm Evolution in the NOAA Warn-on-Forecast System." Monthly Weather Review 148, no. 6 (2020): 2567–90. http://dx.doi.org/10.1175/mwr-d-19-0389.1.

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Abstract The NOAA Warn-on-Forecast System (WoFS) is an experimental rapidly updating convection-allowing ensemble designed to provide probabilistic operational guidance on high-impact thunderstorm hazards. The current WoFS uses physics diversity to help maintain ensemble spread. We assess the systematic impacts of the three WoFS PBL schemes—YSU, MYJ, and MYNN—using novel, object-based methods tailored to thunderstorms. Very short forecast lead times of 0–3 h are examined, which limits phase errors and thereby facilitates comparisons of observed and model storms that occurred in the same area a

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Lee, Bruce D., Brian F. Jewett, and Robert B. Wilhelmson. "The 19 April 1996 Illinois Tornado Outbreak. Part I: Cell Evolution and Supercell Isolation." Weather and Forecasting 21, no. 4 (2006): 433–48. http://dx.doi.org/10.1175/waf944.1.

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Abstract In this study of the 19 April 1996 Illinois tornado outbreak, 109 cells were tracked using radar data to understand the transition of the cell configuration from a considerable number of initial cells to a small subset of supercells after several hours of evolution. Of these 109 cells, 85 developed along three synoptic boundaries (dryline, warm front, and dryline–warm front occlusion) between 1940 and 2230 UTC. A large majority of these 85 cells formed in a 1-h period between 2040 and 2140 UTC. With a considerable number of cells initiating within a short time period, the early stages

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Mikhailov, A. V., and K. Schlegel. "Geomagnetic storm effects at F1-layer heights from incoherent scatter observations." Annales Geophysicae 21, no. 2 (2003): 583–96. http://dx.doi.org/10.5194/angeo-21-583-2003.

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Abstract. Storm effects at F1-layer heights (160–200 km) were analyzed for the first time using Millstone Hill (mid-latitudes) and EISCAT (auroral zone) incoherent scatter (IS) observations. The morphological study has shown both increases (positive effect) and decreases (negative effect) in electron concentration. Negative storm effects prevail for all seasons and show a larger magnitude than positive ones, the magnitude of the effect normally increasing with height. At Millstone Hill the summer storm effects are small compared to other seasons, but they are well detectable. At EISCAT this su

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Ashley, Sharon T., and Walker S. Ashley. "The storm morphology of deadly flooding events in the United States." International Journal of Climatology 28, no. 4 (2008): 493–503. http://dx.doi.org/10.1002/joc.1554.

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Adeniyi, J. O. "Magnetic storm effects on the morphology of the equatorial F2-layer." Journal of Atmospheric and Terrestrial Physics 48, no. 8 (1986): 695–702. http://dx.doi.org/10.1016/0021-9169(86)90019-x.

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Medellín, Gabriela, Martí Mayor, Christian M. Appendini, Ruth Cerezo-Mota, and José A. Jiménez. "The Role of Beach Morphology and Mid-Century Climate Change Effects on Wave Runup and Storm Impact on the Northern Yucatan Coast." Journal of Marine Science and Engineering 9, no. 5 (2021): 518. http://dx.doi.org/10.3390/jmse9050518.

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Wave runup is a relevant parameter to determine the storm impact on barrier islands. Here, the role of the beach morphology on wave runup and storm impact was investigated at four coastal communities located on the northern Yucatan coast. Current wave conditions based on regional wind simulations, topo-bathymetric transects measured at each location, and a nonlinear wave transformation model were employed to reconstruct multi-year runup time series. Dune morphology features and extreme water levels (excluding storm surge contributions) were further employed to determine the storm impact at eac

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Gagne, David John, Amy McGovern, and Jerry Brotzge. "Classification of Convective Areas Using Decision Trees." Journal of Atmospheric and Oceanic Technology 26, no. 7 (2009): 1341–53. http://dx.doi.org/10.1175/2008jtecha1205.1.

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Abstract This paper presents an automated approach for classifying storm type from weather radar reflectivity using decision trees. Recent research indicates a strong relationship between storm type (morphology) and severe weather, and such information can aid in the warning process. Furthermore, new adaptive sensing tools, such as the Center for Collaborative Adaptive Sensing of the Atmosphere’s (CASA’s) weather radar, can make use of storm-type information in real time. Given the volume of weather radar data from those tools, manual classification of storms is not possible when dealing with

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Alfaro, Diego A., and Marat Khairoutdinov. "Thermodynamic Constraints on the Morphology of Simulated Midlatitude Squall Lines." Journal of the Atmospheric Sciences 72, no. 8 (2015): 3116–37. http://dx.doi.org/10.1175/jas-d-14-0295.1.

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Abstract This study examines how environmental thermodynamics constrain the morphology of simulated idealized midlatitude squall lines (SLs). The thermodynamic soundings used for simulating various SLs are specified primarily by prescribed vertical profiles of the convective available potential energy (CAPE) and the level of free convection. This framework, which contemplates the latent instability properties of both low- and midtropospheric air, is considered to be convenient for investigating layer-lifting convective phenomena. Results show that frequently used CAPE indices are unsuitable fo

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Montreuil, A. L., M. Chen, A. Esquerré, R. Houthuys, R. Moelans, and P. Bogaert. "PRE- and POST-STORM LiDAR SURVEYS FOR ASSESSMENT OF IMPACT ON COASTAL EROSION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W8 (August 21, 2019): 261–66. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w8-261-2019.

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<p><strong>Abstract.</strong> Sustainable management of the coastal resources requires a better understanding of the processes that drive coastline change. The coastline is a highly dynamic sea-terrestrial interface. It is affected by forcing factors such as water levels, waves, winds, and the highest and most severe changes occur during storm surges. Extreme storms are drivers responsible for rapid and sometimes dramatic changes of the coastline. The consequences of the impacts from these events entail a broad range of social, economic and natural resource considerations fro

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Golladay, S. W., J. R. Webster, and E. F. Benfield. "Changes in Stream Morphology and Storm Transport of Seston Following Watershed Disturbance." Journal of the North American Benthological Society 6, no. 1 (1987): 1–11. http://dx.doi.org/10.2307/1467519.

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Shariful, Fatihah, Mouncef Sedrati, Effi Helmy Ariffin, Syazana Md Shubri, and Mohd Fadzil Akhir. "Impact of 2019 Tropical Storm (Pabuk) on Beach Morphology, Terengganu Coast (Malaysia)." Journal of Coastal Research 95, sp1 (2020): 346. http://dx.doi.org/10.2112/si95-067.1.

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Houser, Chris. "Alongshore variation in the morphology of coastal dunes: Implications for storm response." Geomorphology 199 (October 2013): 48–61. http://dx.doi.org/10.1016/j.geomorph.2012.10.035.

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Catto, Norm R. "More than 16 Years, More than 16 Stressors: Evolution of a Reflective Gravel Beach, 1989-2005." Géographie physique et Quaternaire 60, no. 1 (2007): 49–62. http://dx.doi.org/10.7202/016364ar.

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Abstract Mobile Beach, a reflective, moderate-to-high energy, gravel bayhead bar system in eastern Newfoundland, has been influenced by 15 hurricanes and strong winter storms, and at least 9 significant autumn and winter storms between July 1989 and December 2005. Yearly variations in the extent of seasonal ice cover offshore, and snow cover, ice foot development, and freezing of beach sediment, also have shaped Mobile Beach. Vehicle activity and foot traffic have resulted in coarsening, compaction, and steepening. Excavation of a drainage channel through the beach affected sediment supply and

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Li, Xiaofeng, Jun A. Zhang, Xiaofeng Yang, et al. "Tropical Cyclone Morphology from Spaceborne Synthetic Aperture Radar." Bulletin of the American Meteorological Society 94, no. 2 (2013): 215–30. http://dx.doi.org/10.1175/bams-d-11-00211.1.

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In 2008, the Canadian Space Agency sponsored the Radarsat Hurricane Applications Project (RHAP), for researching new developments in the application of Radarsat-1 synthetic aperture radar (SAR) data and innovative mapping approaches to better understand the dynamics of tropical cyclone genesis, morphology, and movement. Although tropical cyclones can be detected by many remote sensors, SAR can yield high-resolution (subkilometer) and low-level storm information that cannot be seen below the clouds by other sensors. In addition to the wind field and tropical cyclone eye information, structures

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Gagne II, David John, Sue Ellen Haupt, Douglas W. Nychka, and Gregory Thompson. "Interpretable Deep Learning for Spatial Analysis of Severe Hailstorms." Monthly Weather Review 147, no. 8 (2019): 2827–45. http://dx.doi.org/10.1175/mwr-d-18-0316.1.

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Abstract Deep learning models, such as convolutional neural networks, utilize multiple specialized layers to encode spatial patterns at different scales. In this study, deep learning models are compared with standard machine learning approaches on the task of predicting the probability of severe hail based on upper-air dynamic and thermodynamic fields from a convection-allowing numerical weather prediction model. The data for this study come from patches surrounding storms identified in NCAR convection-allowing ensemble runs from 3 May to 3 June 2016. The machine learning models are trained to

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Flournoy, Matthew D., Michael C. Coniglio, and Erik N. Rasmussen. "Examining Relationships between Environmental Conditions and Supercell Motion in Time." Weather and Forecasting 36, no. 3 (2021): 737–55. http://dx.doi.org/10.1175/waf-d-20-0192.1.

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AbstractAlthough environmental controls on bulk supercell potential and hazards have been studied extensively, relationships between environmental conditions and temporal changes to storm morphology remain less explored. These relationships are examined in this study using a compilation of sounding data collected during field campaigns from 1994 to 2019 in the vicinity of 216 supercells. Environmental parameters are calculated from the soundings and related to storm-track characteristics like initial cell motion and the time of the right turn (i.e., the time elapsed between the cell initiation

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Li, Jie, Longyi Shao, Lingli Chang, et al. "Physicochemical Characteristics and Possible Sources of Individual Mineral Particles in a Dust Storm Episode in Beijing, China." Atmosphere 9, no. 7 (2018): 269. http://dx.doi.org/10.3390/atmos9070269.

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Beijing frequently experiences dust storms during spring, which result in deteriorated visibility and cause negative health impacts. In this paper, the dust particles were collected during a dust storm episode on 4–5 May 2017 in Beijing, and the samples before and after the dust storm were also collected. The morphology and elemental and mineralogical compositions of the dust samples were investigated using a transmission electron microscope equipped with an energy-dispersive X-ray spectrometer (TEM-EDX) and X-ray diffraction (XRD). The TEM-EDX results showed that the particles in the dust sam

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Nowotarski, Christopher J., Paul M. Markowski, Yvette P. Richardson, and George H. Bryan. "Supercell Low-Level Mesocyclones in Simulations with a Sheared Convective Boundary Layer." Monthly Weather Review 143, no. 1 (2015): 272–97. http://dx.doi.org/10.1175/mwr-d-14-00151.1.

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Abstract Simulations of supercell thunderstorms in a sheared convective boundary layer (CBL), characterized by quasi-two-dimensional rolls, are compared with simulations having horizontally homogeneous environments. The effects of boundary layer convection on the general characteristics and the low-level mesocyclones of the simulated supercells are investigated for rolls oriented either perpendicular or parallel to storm motion, as well as with and without the effects of cloud shading. Bulk measures of storm strength are not greatly affected by the presence of rolls in the near-storm environme

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Schumann, Melissa R., and Paul J. Roebber. "The Influence of Upper-Tropospheric Potential Vorticity on Convective Morphology." Monthly Weather Review 138, no. 2 (2010): 463–74. http://dx.doi.org/10.1175/2009mwr3091.1.

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Abstract Extensive research has illuminated the roles that buoyancy and vertical wind shear have in determining convective mode. The goal of this study is to examine synoptic forcing, as measured by the form of the waves on the dynamic tropopause and the strength of the resultant temperature advection, together with the environmental variables that are currently used to differentiate storm type. Logistic regression is used to make this discrimination and provides the preliminary results. First, multicellular lines and isolated rotating cells are associated with weaker synoptic forcing. Second,

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Zoccatelli, D., M. Borga, A. Viglione, G. B. Chirico, and G. Blöschl. "Spatial moments of catchment rainfall: rainfall spatial organisation, basin morphology, and flood response." Hydrology and Earth System Sciences 15, no. 12 (2011): 3767–83. http://dx.doi.org/10.5194/hess-15-3767-2011.

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Abstract. This paper describes a set of spatial rainfall statistics (termed "spatial moments of catchment rainfall") quantifying the dependence existing between spatial rainfall organisation, basin morphology and runoff response. These statistics describe the spatial rainfall organisation in terms of concentration and dispersion statistics as a function of the distance measured along the flow routing coordinate. The introduction of these statistics permits derivation of a simple relationship for the quantification of catchment-scale storm velocity. The concept of the catchment-scale storm velo

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Tyrlis, E., and B. J. Hoskins. "The Morphology of Northern Hemisphere Blocking." Journal of the Atmospheric Sciences 65, no. 5 (2008): 1653–65. http://dx.doi.org/10.1175/2007jas2338.1.

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Abstract The morphology of regional blocking in the Northern Hemisphere is discussed using the 40-yr ECMWF Re-Analysis (ERA-40) dataset and a measure of blocking based on the reversal at storm-track latitudes of meridional θ contrasts on a potential vorticity (PV) surface representative of the tropopause. The focus is on cyclonic and anticyclonic Rossby wave breaking that is inherent to the blocking development, and the extent to which this is determined by the climatological jet position and the ambient shears. More generally, the importance of the climatological planetary scale is discussed.

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Miller, Steven D., William C. Straka, Jia Yue, et al. "The Dark Side of Hurricane Matthew: Unique Perspectives from the VIIRS Day/Night Band." Bulletin of the American Meteorological Society 99, no. 12 (2018): 2561–74. http://dx.doi.org/10.1175/bams-d-17-0097.1.

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AbstractHurricane Matthew (28 September–9 October 2016) was perhaps the most infamous storm of the 2016 Atlantic hurricane season, claiming over 600 lives and causing over $15 billion (U.S. dollars) in damages across the central Caribbean and southeastern U.S. seaboard. Research surrounding Matthew and its many noteworthy meteorological characteristics (e.g., rapid intensification into the southernmost category 5 hurricane in the Atlantic basin on record, strong lightning and sprite production, and unusual cloud morphology) is ongoing. Satellite remote sensing typically plays an important role

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Mikhailov, A. V., A. H. Depueva, and V. H. Depuev. "Daytime F2-layer negative storm effect: what is the difference between storm-induced and Q-disturbance events?" Annales Geophysicae 25, no. 7 (2007): 1531–41. http://dx.doi.org/10.5194/angeo-25-1531-2007.

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Abstract. Negative F2-layer storms related to geomagnetic activity and quiet-time disturbances (Q-disturbances) belong to different classes of events and exhibit different morphology. Mid-latitude daytime Q-disturbances, unlike the usual negative F2-layer storms, demonstrate NmF2 and hmF2 in-phase variations. An analysis of Millstone Hill ISR observations for usual and Q-disturbances has shown the difference in the controlling aeronomic parameter variations for the two classes of events. The decrease in atomic oxygen concentration provides the main contribution to the hmF2 decrease below the m

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