The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform
Fatima Karbou - One of the best experts on this subject based on the ideXlab platform.
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Driftsondes: Providing In Situ Long-Duration Dropsonde Observations over Remote Regions
Bulletin of the American Meteorological Society, 2013Co-Authors: Stephen A. Cohn, Terry Hock, Philippe Cocquerez, Junhong Wang, Florence Rabier, David B. Parsons, Patrick A. Harr, Philippe Drobinski, Fatima KarbouAbstract:Constellations of driftsonde systems— gondolas floating in the stratosphere and able to release dropsondes upon command— have so far been used in three major field experiments from 2006 through 2010. With them, high-quality, high-resolution, in situ atmospheric profiles were made over extended periods in regions that are otherwise very difficult to observe. The measurements have unique value for verifying and evaluating numerical weather prediction models and global data assimilation systems; they can be a valuable resource to validate data from Remote sensing instruments, especially on satellites, but also airborne or ground-based Remote Sensors. These applications for models and Remote Sensors result in a powerful combination for improving data assimilation systems. Driftsondes also can support process studies in otherwise difficult locations—for example, to study factors that control the development or decay of a tropical disturbance, or to investigate the lower boundary layer over the interior Antarct...
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Driftsondes: Providing In Situ Long-Duration Dropsonde Observations over Remote Regions
'American Meteorological Society', 2013Co-Authors: Stephen A. Cohn, Terry Hock, Philippe Cocquerez, Junhong Wang, Florence Rabier, Patrick A. Harr, Philippe Drobinski, Wu Chun-chieh, David Parsons, Fatima KarbouAbstract:International audienceConstellations of driftsonde systems— gondolas floating in the stratosphere and able to release dropsondes upon command— have so far been used in three major field experiments from 2006 through 2010. With them, high-quality, high-resolution, in situ atmospheric profiles were made over extended periods in regions that are otherwise very difficult to observe. The measurements have unique value for verifying and evaluating numerical weather prediction models and global data assimilation systems; they can be a valuable resource to validate data from Remote sensing instruments, especially on satellites, but also airborne or ground-based Remote Sensors. These applications for models and Remote Sensors result in a powerful combination for improving data assimilation systems. Driftsondes also can support process studies in otherwise difficult locations—for example, to study factors that control the development or decay of a tropical disturbance, or to investigate the lower boundary layer over the interior Antarctic continent. The driftsonde system is now a mature and robust observing system that can be combined with flight-level data to conduct multidisciplinary research at heights well above that reached by current research aircraft. In this article we describe the development and capabilities of the driftsonde system, the exemplary science resulting from its use to date, and some future applications
Karbou Fatima - One of the best experts on this subject based on the ideXlab platform.
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Driftsondes: Providing In Situ Long-Duration Dropsonde Observations over Remote Regions
Bulletin of the American Meteorological Society, 2013Co-Authors: Cohn Stephen A., Hock Terry, Cocquerez Philippe, Wang Junhong, Rabier Florence, Parsons David, Harr Patrick, Wu Chun-chieh, Drobinski Philippe, Karbou FatimaAbstract:Constellations of driftsonde systems— gondolas floating in the stratosphere and able to release dropsondes upon command— have so far been used in three major field experiments from 2006 through 2010. With them, high-quality, high-resolution, in situ atmospheric profiles were made over extended periods in regions that are otherwise very difficult to observe. The measurements have unique value for verifying and evaluating numerical weather prediction models and global data assimilation systems; they can be a valuable resource to validate data from Remote sensing instruments, especially on satellites, but also airborne or ground-based Remote Sensors. These applications for models and Remote Sensors result in a powerful combination for improving data assimilation systems. Driftsondes also can support process studies in otherwise difficult locations—for example, to study factors that control the development or decay of a tropical disturbance, or to investigate the lower boundary layer over the interior Antarctic continent. The driftsonde system is now a mature and robust observing system that can be combined with flight-level data to conduct multidisciplinary research at heights well above that reached by current research aircraft. In this article we describe the development and capabilities of the driftsonde system, the exemplary science resulting from its use to date, and some future applications.
Stephen A. Cohn - One of the best experts on this subject based on the ideXlab platform.
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Driftsondes: Providing In Situ Long-Duration Dropsonde Observations over Remote Regions
Bulletin of the American Meteorological Society, 2013Co-Authors: Stephen A. Cohn, Terry Hock, Philippe Cocquerez, Junhong Wang, Florence Rabier, David B. Parsons, Patrick A. Harr, Philippe Drobinski, Fatima KarbouAbstract:Constellations of driftsonde systems— gondolas floating in the stratosphere and able to release dropsondes upon command— have so far been used in three major field experiments from 2006 through 2010. With them, high-quality, high-resolution, in situ atmospheric profiles were made over extended periods in regions that are otherwise very difficult to observe. The measurements have unique value for verifying and evaluating numerical weather prediction models and global data assimilation systems; they can be a valuable resource to validate data from Remote sensing instruments, especially on satellites, but also airborne or ground-based Remote Sensors. These applications for models and Remote Sensors result in a powerful combination for improving data assimilation systems. Driftsondes also can support process studies in otherwise difficult locations—for example, to study factors that control the development or decay of a tropical disturbance, or to investigate the lower boundary layer over the interior Antarct...
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Driftsondes: Providing In Situ Long-Duration Dropsonde Observations over Remote Regions
'American Meteorological Society', 2013Co-Authors: Stephen A. Cohn, Terry Hock, Philippe Cocquerez, Junhong Wang, Florence Rabier, Patrick A. Harr, Philippe Drobinski, Wu Chun-chieh, David Parsons, Fatima KarbouAbstract:International audienceConstellations of driftsonde systems— gondolas floating in the stratosphere and able to release dropsondes upon command— have so far been used in three major field experiments from 2006 through 2010. With them, high-quality, high-resolution, in situ atmospheric profiles were made over extended periods in regions that are otherwise very difficult to observe. The measurements have unique value for verifying and evaluating numerical weather prediction models and global data assimilation systems; they can be a valuable resource to validate data from Remote sensing instruments, especially on satellites, but also airborne or ground-based Remote Sensors. These applications for models and Remote Sensors result in a powerful combination for improving data assimilation systems. Driftsondes also can support process studies in otherwise difficult locations—for example, to study factors that control the development or decay of a tropical disturbance, or to investigate the lower boundary layer over the interior Antarctic continent. The driftsonde system is now a mature and robust observing system that can be combined with flight-level data to conduct multidisciplinary research at heights well above that reached by current research aircraft. In this article we describe the development and capabilities of the driftsonde system, the exemplary science resulting from its use to date, and some future applications
Cohn Stephen A. - One of the best experts on this subject based on the ideXlab platform.
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Driftsondes: Providing In Situ Long-Duration Dropsonde Observations over Remote Regions
Bulletin of the American Meteorological Society, 2013Co-Authors: Cohn Stephen A., Hock Terry, Cocquerez Philippe, Wang Junhong, Rabier Florence, Parsons David, Harr Patrick, Wu Chun-chieh, Drobinski Philippe, Karbou FatimaAbstract:Constellations of driftsonde systems— gondolas floating in the stratosphere and able to release dropsondes upon command— have so far been used in three major field experiments from 2006 through 2010. With them, high-quality, high-resolution, in situ atmospheric profiles were made over extended periods in regions that are otherwise very difficult to observe. The measurements have unique value for verifying and evaluating numerical weather prediction models and global data assimilation systems; they can be a valuable resource to validate data from Remote sensing instruments, especially on satellites, but also airborne or ground-based Remote Sensors. These applications for models and Remote Sensors result in a powerful combination for improving data assimilation systems. Driftsondes also can support process studies in otherwise difficult locations—for example, to study factors that control the development or decay of a tropical disturbance, or to investigate the lower boundary layer over the interior Antarctic continent. The driftsonde system is now a mature and robust observing system that can be combined with flight-level data to conduct multidisciplinary research at heights well above that reached by current research aircraft. In this article we describe the development and capabilities of the driftsonde system, the exemplary science resulting from its use to date, and some future applications.
David D Turner - One of the best experts on this subject based on the ideXlab platform.
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characteristic atmospheric radiative heating rate profiles in arctic clouds as observed at barrow alaska
Journal of Applied Meteorology and Climatology, 2018Co-Authors: David D Turner, Matthew D Shupe, A B ZwinkAbstract:AbstractA 2-yr cloud microphysical property dataset derived from ground-based Remote Sensors at the Atmospheric Radiation Measurement site near Barrow, Alaska, was used as input into a radiative tr...
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cloud microphysical properties retrieved from downwelling infrared radiance measurements made at eureka nunavut canada 2006 09
Journal of Applied Meteorology and Climatology, 2014Co-Authors: Christopher J Cox, David D Turner, Matthew D Shupe, Penny M Rowe, Von P WaldenAbstract:AbstractThe radiative properties of clouds are related to cloud microphysical and optical properties, including water path, optical depth, particle size, and thermodynamic phase. Ground-based observations from Remote Sensors provide high-quality, long-term, continuous measurements that can be used to obtain these properties. In the Arctic, a more comprehensive understanding of cloud microphysics is important because of the sensitivity of the Arctic climate to changes in radiation. Eureka, Nunavut (80°N, 86°25′W, 10 m), Canada, is a research station located on Ellesmere Island. A large suite of ground-based Remote Sensors at Eureka provides the opportunity to make measurements of cloud microphysics using multiple instruments and methodologies. In this paper, cloud microphysical properties are presented using a retrieval method that utilizes infrared radiances obtained from an infrared spectrometer at Eureka between March 2006 and April 2009. These retrievals provide a characterization of the microphysics o...
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continuous water vapor profiles from operational ground based active and passive Remote Sensors
Bulletin of the American Meteorological Society, 2000Co-Authors: David D Turner, Wayne F Feltz, Rich A FerrareAbstract:Abstract The Atmospheric Radiation Measurement program's Southern Great Plains Cloud and Radiation Testbed site central facility near Lamont, Oklahoma, offers unique operational water vapor profiling capabilities, including active and passive Remote Sensors as well as traditional in situ radiosonde measurements. Remote sensing technologies include an automated Raman lidar and an automated Atmospheric Emitted Radiance Interferometer (AERI), which are able to retrieve water vapor profiles operationally through the lower troposphere throughout the diurnal cycle. Comparisons of these two water vapor Remote sensing methods to each other and to radiosondes over an 8—month period are presented and discussed, highlighting the accuracy and limitations of each method. Additionally, the AERI is able to retrieve profiles of temperature while the Raman lidar is able to retrieve aerosol extinction profiles operationally. These data, coupled with hourly wind profiles from a 915—MHz wind profiler, provide complete specif...
