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RISS 인기검색어
- 검색키워드
- 저자 : Giammanco, Ian M. (검색결과 5 건)
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Observed characteristics of tropical cyclone vertical wind profiles
Giammanco, Ian M.,Schroeder, John L.,Powell, Mark D. Techno-Press 2012 Wind and Structures, An International Journal (WAS Vol.15 No.1
Over the last decade substantial improvements have been made in our ability to observe the tropical cyclone boundary layer. Low-level wind speed maxima have been frequently observed in Global Positioning System dropwindsonde (GPS sonde) profiles. Data from GPS sondes and coastal Doppler radars were employed to evaluate the characteristics of tropical cyclone vertical wind profiles in open ocean conditions and at landfall. Changes to the mean vertical wind profile were observed azimuthally and with decreasing radial distance toward the cyclone center. Wind profiles within the hurricane boundary layer exhibited a logarithmic increase with height up to the depth of the wind maximum.
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Observed characteristics of tropical cyclone vertical wind profiles
Ian M. Giammanco,John L. Schroeder,Mark D. Powell 한국풍공학회 2012 Wind and Structures, An International Journal (WAS Vol.15 No.1
Over the last decade substantial improvements have been made in our ability to observe the tropical cyclone boundary layer. Low-level wind speed maxima have been frequently observed in Global Positioning System dropwindsonde (GPS sonde) profiles. Data from GPS sondes and coastal Doppler radars were employed to evaluate the characteristics of tropical cyclone vertical wind profiles in open ocean conditions and at landfall. Changes to the mean vertical wind profile were observed azimuthally and with decreasing radial distance toward the cyclone center. Wind profiles within the hurricane boundary layer exhibited a logarithmic increase with height up to the depth of the wind maximum.
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Work engagement in public hospitals: a social exchange approach
Alessandro Ancarani,Carmela Di Mauro,Maria Daniela Giammanco,Giuseppe Giammanco 한국행정학회 2018 International Review of Public Administration Vol.23 No.1
We develop and test a model that envisages work engagement in public services as determined by interactions with supervisor and co-workers. Specifically, we apply the framework of Social Exchange Theory to explore the impact of Leader–Member exchange (LMX) and Team–Member exchange (TMX) on Work Engagement in the provision of health care in public hospitals. Our investigation suggests that both LMX and TMX represent significant factors associated with work engagement among the hospital medical staff.
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Observed tropical cyclone wind flow characteristics
Schroeder, John L.,Edwards, Becca P.,Giammanco, Ian M. Techno-Press 2009 Wind and Structures, An International Journal (WAS Vol.12 No.4
Since 1998, several institutions have deployed mobile instrumented towers to collect research-grade meteorological data from landfalling tropical cyclones. This study examines the wind flow characteristics from seven landfalling tropical cyclones using data collected from eight individual mobile tower deployments which occurred from 1998-2005. Gust factor, turbulence intensity, and integral scale statistics are inspected relative to changing surface roughness, mean wind speed and storm-relative position. Radar data, acquired from the National Weather Service (NWS) Weather Surveillance Radar - 1988 Doppler (WSR-88D) network, are examined to explore potential relationships with respect to radar reflectivity and precipitation structure (convective versus stratiform). The results indicate tropical cyclone wind flow characteristics are strongly influenced by the surrounding surface roughness (i.e., exposure) at each observation site, but some secondary storm dependencies are also documented.
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Observed tropical cyclone wind flow characteristics
John L. Schroeder,Becca P. Edwards,Ian M. Giammanco 한국풍공학회 2009 Wind and Structures, An International Journal (WAS Vol.12 No.4
Since 1998, several institutions have deployed mobile instrumented towers to collect researchgrade meteorological data from landfalling tropical cyclones. This study examines the wind flow characteristics from seven landfalling tropical cyclones using data collected from eight individual mobile tower deployments which occurred from 1998-2005. Gust factor, turbulence intensity, and integral scale statistics are inspected relative to changing surface roughness, mean wind speed and storm-relative position. Radar data, acquired from the National Weather Service (NWS) Weather Surveillance Radar - 1988 Doppler (WSR-88D) network, are examined to explore potential relationships with respect to radar reflectivity and precipitation structure (convective versus stratiform). The results indicate tropical cyclone wind flow characteristics are strongly influenced by the surrounding surface roughness (i.e., exposure) at each observation site, but some secondary storm dependencies are also documented.
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