A large-amplitude mixed Rossby–gravity wave packet is identified in the western Pacific using 6–10-day bandpass-filtered winds. Individual disturbances of 2300–3000-km wavelength propagated westward as the packet moved slowly eastward. The packet first appeared, and subsequently amplified, within a region of active convection associated with the Madden–Julian oscillation (MJO), which was isolat...

Three common synoptic storm tracks observed throughout the United States are the Alberta Clipper, the Colorado cyclone, and the East Coast storm. Numerous studies have been performed on individual storm tracks analyzing quasigeostrophic dynamics, stability, and moisture profiles in each. This study evaluated storms in each track to help diagnose patterns and magnitudes of the aforementioned qua...

Due to human activities, marine and terrestrial ecosystems face a future where disturbances are predicted to occur at a frequency and severity unprecedented in the recent past. Of particular concern is the ability of systems to recover where multiple stressors act simultaneously. We examine this issue in the context of a coral reef ecosystem where increases in stressors, such as fisheries, bent...

I have four long-term goals. My first goal is to finalize the large body of work already carried out by the PI on the predictability of tropical cyclone (TC) forecast tracks out to 72 hours ahead. My second goal is to apply similar, as well as new, ideas to the predictability of forecast intensity out to 72 hours ahead. My third goal is to carry out observing system simulation experiments (OSSE...

Abstract. Mediterranean cyclones are extratropical cyclones, typically of smaller size and weaker intensity than other that develop over the main open ocean storm tracks. Nevertheless, can attain high intensities, even comparable to ones tropical thus cause large socioeconomic impacts in densely populated coasts region. After cyclogenesis takes place, a variety processes involved cyclone’s deve...

Past studies of cyclones (hurricanes, typhoons, tropical cyclones) disturbance showed that meteorological, topographical, and biological factors affect the patterns forest intensity but left open extent to which these findings were representative across different global cyclone regions. Using remote sensing data machine learning models, we examined how change over spatial scales assessed their ...

cated on the coast and 44% of the world’s population lives within 150 km of the ocean.1 Unfortunately, coastal regions are often low-lying and thus susceptible to an increase in seasurface elevation. A storm surge is a potentially devastating rise in the sea surface caused by extratropical cyclones or by tropical cyclones such as hurricanes and typhoons. Surges can lead to large loss of human l...

Our understanding of the time variability intense cyclones in Mediterranean region is still lacking despite its importance for long-term forecast climate anomalies. This study examines month-to-month and predictability cyclones, intensity which exceeded 75th percentile (intense cyclones) 95th (extreme cyclones), over Western Eastern Mediterranean. The locations were obtained by applying method ...

Abstract Knutson et al. (2020) recently published a meta-study that gives multi-model projections for changes in various properties of tropical cyclones under climate change. They considered frequency cyclones, very intense intensity and total rainfall rate cyclones. For each these properties, they reported globally by basin the six major cylone basins. The were presented as change would occur ...

High-vertical-resolution rawinsondes were used to document the existence of low–bulk Richardson number (Rb) layers in tropical cyclones. The largest frequency of low Rb existed in the inner 200 km at the 13.5-km level. This peak extended more than 1000 km from the storm center and sloped downward with radius. The presence of an extensive upper-tropospheric low-Rb layer supports the assumption o...