Southern US coastal forests are subject to damage by major Atlantic Hurricanes at a frequency that influences forest succession. Forest species may be: a) resistant: unchanged in mortality and growth; b) susceptible: increase in mortality and decrease in growth, and c) resilient: increase in mortality but increase in abundance and growth, or d) usurper: absent prior to disturbance and increase ...

introduction dust storms, one type of dust event, are in most cases the result of turbulent winds, including convective haboobs, which raise large quantities of dust from desert surfaces and reduce visibility to less than 1 km. this dust reaches concentrations in excess of 6000 mg m3 in severe events. the major dust source regions are areas of arid and hyper-arid, with mean annual rainfalls of ...

[1] On 4 April 2000, a coronal mass ejection (CME) took place close to the western limb of the Sun. The shock front of the CME hit the Earth’s magnetosphere on 6 April. A strong interplanetary southward BZ event in the sheath region caused a magnetic storm that was the second strongest in the year 2000 if quantified by the peak of the Dst index. We have analyzed this sequence of events using ob...

Horqin Sandy Land is located in northeast China (4241’-4515’N, 11835’-12330’E). The wind-sand topography in Horqin Sandy Land can be described as two series--sand deposition and wind erosion. Wind is the natural force for the formation of wind-sandy environment, under windsandy environment, the wind erosion processes such as sand drifting, dust-storm, etc. occurred frequently because of the fre...

A supercell storm with tornadogenesis in the afternoon hours of the 30th August 2003 in NW Croatia is studied. As was seen from radar and satellite material the cell developed in Slovenia and crossed into Croatia, where interacting with favorable wind patterns (indicated by high SREH and vertical wind shear) it evolved into a supercell. Macroscale forcing was found to be lacking. On the other h...

Presented is a synoptic and mesoscale analysis of the June 11-12, 2001 bow echo storm event. The storm system originated in southern and central Minnesota during the afternoon hours of June 11, 2001, and spawned several tornadic supercells. The storms moved to the southeast into northwestern Wisconsin where the mesoscale convective system (MCS) gradually developed a line of intense radar reflec...

During hurricane seasons, emergency managers and other decision makers need accurate and ‘on-time’ information on potential storm surge impacts. Fully dynamical computer models, such as the ADCIRC tide, storm surge, and wind-wave model take several hours to complete a forecast when configured at high spatial resolution. Additionally, statically meaningful ensembles of high-resolution models (ne...

This paper describes an enhanced weather processor for the Federal Aviation Administration’s Airport Surveillance Radar (ASR9) that will include Doppler wind estimation for the detection of low altitude wind shear, scan-to-scan tracking to provide estimates of the speed and direction of storm movement and suppression of spurious weather reports currently generated by the ASR-9’s six-level weath...

A limited number of studies have examined convective mode and severe weather occurrence (e.g., Trapp et al. 2005, Gallus et al. 2008), but a comprehensive examination of the relationship between convective mode and the near-storm environment was lacking in formal literature. Therefore, an ambitious effort to develop a multifaceted severe storms database began at the Storm Prediction Center (SPC...