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Revegetation and cattle production are major objectives in the reclamation plan for mine tailings at the Highland Valley Copper mine in Canada. Residual molybdenum (Mo) in the tailings is imbibed by vegetation and forages accumulate up to 400 ppm Mo at the Highmont tailings pond. Grazing studies with cattle determined the feasibility of utilising the site for livestock production and published results are reviewed. Clinical evaluations (1999?2001) revealed signs of lameness, diarrhoea and hair coat depigmentation in cows but they recovered without treatment. Supplement trials (2002 ? 2004) demonstrated the efficacy of copper (Cu) sulphate for the alleviation of clinical disorders. Dietary Mo was rapidly eliminated...
Revegetation and cattle production are major objectives in the reclamation plan for mine tailings at the Highland Valley Copper mine in Canada. Residual molybdenum (Mo) in the tailings is imbibed by vegetation and forages accumulate up to 400 ppm Mo at the Highmont tailings pond. Grazing studies with cattle determined the feasibility of utilising the site for livestock production and published results are reviewed. Clinical evaluations (1999?2001) revealed signs of lameness, diarrhoea and hair coat depigmentation in cows but they recovered without treatment. Supplement trials (2002 ? 2004) demonstrated the efficacy of copper (Cu) sulphate for the alleviation of clinical disorders. Dietary Mo was rapidly eliminated...
The effect of vertical wind shear (VWS) between different pressure levels on TC intensity change is statistically analyzed based on the best track data of tropical cyclones (TCs) in the western North Pacific (WNP) from the Joint Typhoon Warning Center (JTWC) and the ECMWF interim reanalysis (ERA-Interim) data during 1981–2013. Results show that the commonly used VWS measure between 200 and 850 hPa is less representative of the attenuating deep-layer shear effect than that between 300 and 1000 hPa. Moreover, the authors find that the low-level shear between 850 (or 700) and 1000 hPa is more negatively correlated with TC intensity change than any deep-layer shear during the active typhoon season, whereas deep-layer...
The offshore insurance industry has traditionally been defined by a “trader” mentality in which companies have been willing to hold risks without attempting to model or further quantify their risk through technical appraisal. The 2005 hurricane season in the Gulf of Mexico changed this perspective, and underwriters began to control their exposure to contingent losses through policy sub-limits and other restrictions on coverage. The purpose of the final part of this two-part article is to quantify the losses to property damage in the Gulf of Mexico for historic weather events using the Risk Management Solutions Offshore Platform Model®. Value at Risk measures indicate that the financial exposure of Gulf assets is...
Revegetation and cattle production are major objectives in the reclamation plan for mine tailings at the Highland Valley Copper mine in Canada. Residual molybdenum (Mo) in the tailings is imbibed by vegetation and forages accumulate up to 400 ppm Mo at the Highmont tailings pond. Grazing studies with cattle determined the feasibility of utilising the site for livestock production and published results are reviewed. Clinical evaluations (1999?2001) revealed signs of lameness, diarrhoea and hair coat depigmentation in cows but they recovered without treatment. Supplement trials (2002 ? 2004) demonstrated the efficacy of copper (Cu) sulphate for the alleviation of clinical disorders. Dietary Mo was rapidly eliminated...
Hurricanes cause severe impacts on forest ecosystems in the United States. These events can substantially alter the carbon biogeochemical cycle at local to regional scales. We selected all tropical storms and more severe events that made U.S. landfall between 1900 and 2011 and used hurricane best track database, a meteorological model (HURRECON), National Land Cover Database (NLCD), U. S. Department of Agirculture Forest Service biomass dataset, and pre- and post-MODIS data to quantify individual event and annual biomass mortality. Our estimates show an average of 18.2 TgC/yr of live biomass mortality for 1900–2011 in the US with strong spatial and inter-annual variability. Results show Hurricane Camille in 1969...