The Lower Rhine Delta, a transitional area between the River Rhine and Meuse and the North Sea, is at risk of flooding induced by infrequent events of a storm surge or upstream flooding, or by more infrequent events of a combination of both. A joint probability analysis of the astronomical tide, the wind induced storm surge, the Rhine flow and the Meuse flow at the boundaries is established in ...

Abstract. A warming climate leads to a moister atmosphere and more rapid hydrologic cycle. As such, many parts of the country are predicted to experience more total rainfall per year and more frequent extreme rainfall events. Most regions of the country have stormwater systems designed to a standard that matches outflow rates to predevelopment values for specified return period storms. Increase...

Mass reduction rates of particles and metals were simulated for a two-compartment settling tank composed of a storage compartment and a continuous flow compartment. Particle-size distribution, rainfall, and flow data from 16 storm events measured at three highway sites were used. The volume ratio i.e., ratio of surface areas for a given depth between storage and continuous flow compartment was ...

“The organic substances we have found occur in sufficiently large quantities to support bacterial growth. This turns the droplets into small dynamic universes, each of which supports certain forms of life,” says Tina Santl Temkiv, who conducted the new study as a PhD student together with her supervisor, senior researcher Ulrich Bay Gosewinkel, at Aarhus University’s Department of Environmental...

Storm Movement Prediction (SMP) is a proposed (future) product for Terminal Doppler Weather Radar (TDWR), aiding controllers by tracking storm systems approaching and passing through the terminal environment. Because the scan strategy (data acquisition) of TDWR has been critically designed to meet the needs of its primary function, which is the detection of hazardous low-altitude wind shear, th...

The 6.7)m channel water vapor (WV) images from GOES have been generally used as a tool for synoptic scale weather analysis since their availability in the early 1980's. However, WV images do have mesoscale applications as well. The availability of hourly WV images starting in late 1987 has permitted the monitoring of changes in mid and upper level moisture in the environment of convective storm...

H urricanes are strong tropical storms with maximum surface winds greater than 64 meters per second that originate from equatorial oceans. The eye of a hurricane is usually 30 to 50 kilometers wide, but the storm’s overall extent might exceed 600 km or more. The damaging winds, torrential rains, storm surges, and flooding caused by hurricanes make them one of the deadliest and costliest natural...

Serious challenges face American higher education and our nation’s continued economic competitiveness and security. Some of these challenges have been identified during the multiyear effort to reauthorize the Higher Education Act and in several recent reports, including A Test of Leadership: Charting the Future of U.S. Higher Education by the Secretary of Education's Commission on the Future of...