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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...
Categories: Publication;
Types: Citation;
Tags: Pacific Islands CASC,
cyclones,
hurricanes,
statistics,
typhoons
The South Carolina Unit is one of 40 similar Cooperative Research Units located at land-grant universities throughout the United States. It is jointly sponsored by the Department of the Interior's U.S. Geological Survey and U.S. Fish and Wildlife Service, the South Carolina Department of Natural Resources, Clemson University, and the Wildlife Management Institute. Research at the SC Unit focuses primarily on questions of importance to our cooperators that require high-quality data and analysis to address natural resource management issues. Areas of emphasis include ecology and conservation of both terrestrial and marine wildlife, reproductive energetics, conservation physiology, foraging ecology, population modeling...
The Cooperative Fish and Wildlife Research Unit program was established in 1935 to enhance graduate education in fisheries and wildlife sciences and to facilitate research between natural resource agencies and universities on topics of mutual concern. Today, there are 40 Cooperative Research Units in 38 states. Each unit is a partnership among the U.S. Geological Survey, State natural resource agency(s), host university(s), and the Wildlife Management Institute. Staffed by U.S. Geological Survey research scientists, Cooperative Fish and Wildlife Research Units conduct research on renewable natural resource questions, direct the education of graduate students, provide technical assistance and consultation on natural...
The lakes, rivers, and streams of New York State provide an essential water resource for the State. The information provided by time series hydrologic data is essential to understanding ways to promote healthy instream ecology and to strengthen the scientific basis for sound water management decision making in New York. The U.S. Geological Survey, in cooperation with The Nature Conservancy and the New York State Energy Research and Development Authority, has developed the New York Streamflow Estimation Tool to estimate a daily mean hydrograph for the period from October 1, 1960, to September 30, 2010, at ungaged locations across the State. The New York Streamflow Estimation Tool produces a complete estimated daily...
Categories: Data,
Project;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Aquatic Community Health,
Aquatic Community Health,
Best-Management Practices,
Best-Management Practices,
Completed,
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