The Experts below are selected from a list of 10977 Experts worldwide ranked by ideXlab platform
Tsengdar Lee - One of the best experts on this subject based on the ideXlab platform.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:[1] A high-resolution finite volume general circulation model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite volume dynamical core with terrain-following Lagrangian control volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones can be more realistically represented. In this work, preliminary results are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004, chosen because of varied difficulties presented to Numerical Weather Forecasting, are performed. The fvGCM produces very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:A high-resolution finite-volume General Circulation Model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite-volume dynamical core with terrain-following Lagrangian control-volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones and even tropical convective clusters can be more realistically represented. In this work, preliminary results of the fvGCM are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004 are chosen because of strong and varied difficulties presented to Numerical Weather Forecasting. It is shown that the fvGCM, run at the resolution of a quarter of a degree, can produce very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
Oreste Reale - One of the best experts on this subject based on the ideXlab platform.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:[1] A high-resolution finite volume general circulation model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite volume dynamical core with terrain-following Lagrangian control volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones can be more realistically represented. In this work, preliminary results are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004, chosen because of varied difficulties presented to Numerical Weather Forecasting, are performed. The fvGCM produces very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:A high-resolution finite-volume General Circulation Model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite-volume dynamical core with terrain-following Lagrangian control-volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones and even tropical convective clusters can be more realistically represented. In this work, preliminary results of the fvGCM are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004 are chosen because of strong and varied difficulties presented to Numerical Weather Forecasting. It is shown that the fvGCM, run at the resolution of a quarter of a degree, can produce very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
Bowen Shen - One of the best experts on this subject based on the ideXlab platform.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:[1] A high-resolution finite volume general circulation model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite volume dynamical core with terrain-following Lagrangian control volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones can be more realistically represented. In this work, preliminary results are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004, chosen because of varied difficulties presented to Numerical Weather Forecasting, are performed. The fvGCM produces very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:A high-resolution finite-volume General Circulation Model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite-volume dynamical core with terrain-following Lagrangian control-volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones and even tropical convective clusters can be more realistically represented. In this work, preliminary results of the fvGCM are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004 are chosen because of strong and varied difficulties presented to Numerical Weather Forecasting. It is shown that the fvGCM, run at the resolution of a quarter of a degree, can produce very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
J D Chern - One of the best experts on this subject based on the ideXlab platform.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:[1] A high-resolution finite volume general circulation model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite volume dynamical core with terrain-following Lagrangian control volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones can be more realistically represented. In this work, preliminary results are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004, chosen because of varied difficulties presented to Numerical Weather Forecasting, are performed. The fvGCM produces very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:A high-resolution finite-volume General Circulation Model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite-volume dynamical core with terrain-following Lagrangian control-volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones and even tropical convective clusters can be more realistically represented. In this work, preliminary results of the fvGCM are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004 are chosen because of strong and varied difficulties presented to Numerical Weather Forecasting. It is shown that the fvGCM, run at the resolution of a quarter of a degree, can produce very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
Robert Atlas - One of the best experts on this subject based on the ideXlab platform.
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airs improving Weather Forecasting and providing new data on greenhouse gases
Bulletin of the American Meteorological Society, 2006Co-Authors: Moustafa T Chahine, Eric J Fetzer, Hartmut H Aumann, Robert Atlas, Thomas S Pagano, John Blaisdell, Luke Chen, Murty Divakarla, C Barnet, Mitch GoldbergAbstract:This paper discusses the performance of AIRS and examines how it is meeting its operational and research objectives based on the experience of more than 2 yr with AIRS data. We describe the science background and the performance of AIRS in terms of the accuracy and stability of its observed spectral radiances. We examine the validation of the retrieved temperature and water vapor profiles against collocated operational radiosondes, and then we assess the impact thereof on Numerical Weather Forecasting of the assimilation of the AIRS spectra and the retrieved temperature. We close the paper with a discussion on the retrieval of several minor tropospheric constituents from AIRS spectra.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:[1] A high-resolution finite volume general circulation model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite volume dynamical core with terrain-following Lagrangian control volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones can be more realistically represented. In this work, preliminary results are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004, chosen because of varied difficulties presented to Numerical Weather Forecasting, are performed. The fvGCM produces very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
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hurricane Forecasting with the high resolution nasa finite volume general circulation model
Geophysical Research Letters, 2005Co-Authors: Robert Atlas, Oreste Reale, Bowen Shen, Shianjiann Lin, J D Chern, William M Putman, Tsengdar LeeAbstract:A high-resolution finite-volume General Circulation Model (fvGCM), resulting from a development effort of more than ten years, is now being run operationally at the NASA Goddard Space Flight Center and Ames Research Center. The model is based on a finite-volume dynamical core with terrain-following Lagrangian control-volume discretization and performs efficiently on massive parallel architectures. The computational efficiency allows simulations at a resolution of a quarter of a degree, which is double the resolution currently adopted by most global models in operational Weather centers. Such fine global resolution brings us closer to overcoming a fundamental barrier in global atmospheric modeling for both Weather and climate, because tropical cyclones and even tropical convective clusters can be more realistically represented. In this work, preliminary results of the fvGCM are shown. Fifteen simulations of four Atlantic tropical cyclones in 2002 and 2004 are chosen because of strong and varied difficulties presented to Numerical Weather Forecasting. It is shown that the fvGCM, run at the resolution of a quarter of a degree, can produce very good forecasts of these tropical systems, adequately resolving problems like erratic track, abrupt recurvature, intense extratropical transition, multiple landfall and reintensification, and interaction among vortices.
