Global Navigation Satellite System (GNSS) measurements of the Total Electron Content (TEC) from local (Dourbes, 50.1oN, 04.6oE) and European IGS (International GNSS Service) stations were used to obtain the TEC changes during the geomagnetic storms of the latest solar activity cycle. A common epoch analysis, with respect to geomagnetic storm intensity, season, and latitude, was performed on dat...

dust storms are natural phenomena which occur in arid and semi-arid areas of the world. in this study, to evaluate the dust storms which occurred in mashhad over a period of 30 years (1981-2009), first, the number of days on which dust storms happened in mashhad (days with a wind speed greater than 15 m.s-1 and horizontal visibility less than 1000 m) were identified and counted for each month; ...

UNLABELLED Bacterial community composition and longitudinal fluctuations were monitored in a riverine system during and after Superstorm Sandy to better characterize inter- and intracommunity responses associated with the disturbance associated with a 100-year storm event. High-throughput sequencing of the 16S rRNA gene was used to assess microbial community structure within water samples from ...

The Oklahoma Lightning Mapping Array (OKLMA) has consisted of 17 Very High Frequency (VHF) sensors in two separate clusters separated by roughly 150 km since 2012. This large footprint is expected to benefit the spatial coverage, sensitivity and accuracy network (e.g., Chmielewski & Bruning, 2016, https://doi.org/10.1002/2016jd025159; Koshak et al., 2018, https://doi.org/10.1175/jtech-d-17-0041...

Thompson and Edwards (2000) first noted a prominent hodograph kink separating primarily speed shear from directional in the environments of some supercells producing significant tornadoes. Responding to this observation, we compared similar thermodynamic between Moore, Oklahoma tornado 3 May 1999 non-tornadic supercell thunderstorms occurring north Texas on 23 April 2003. The results suggest th...

Introduction On August 28, 2011 Tropical Storm Irene made landfall in Connecticut. On October 29, 2011 Connecticut was impacted by Winter Storm Alfred. Both of these storms included high winds and heavy precipitation which resulted in prolonged power outages, disruption of public drinking water systems, property damage, and widespread debris throughout the state. The HEDSS System was utilized t...

The U.S. National Hurricane Center (NHC) issues advisories every six hours during the life of a hurricane. These advisories describe the current state of the storm, and its predicted path, size, and wind speed over the next five days. However, from these data alone, the question “What is the likelihood that the storm will hit Houston with hurricane strength winds between 12:00 and 14:00 on Satu...