25 August 2008 Convection diagnosis and nowcasting for oceanic aviation applications
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Abstract
An oceanic convection diagnosis and nowcasting system is described whose domain of interest is the region between the southern continental United States and the northern extent of South America. In this system, geostationary satellite imagery are used to define the locations of deep convective clouds through the weighted combination of three independent algorithms. The resultant output, called the Convective Diagnosis Oceanic (CDO) product, is independently validated against space-borne radar and lighting products from the Tropical Rainfall Measuring Mission (TRMM) satellite to ascertain the ability of the CDO to discriminate hazardous convection. The CDO performed well in this preliminary investigation with some limitations noted. Short-term, 1-hr and 2-hr nowcasts of convection location are performed within the Convective Nowcasting Oceanic (CNO) system using a storm tracker. The CNO was found to have good statistical performance at extrapolating existing storm positions. Current work includes the development and implementation of additional atmospheric features for nowcasting convection initiation and to improve nowcasting of mature convection evolution.
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Cathy Kessinger, Cathy Kessinger, Michael Donovan, Michael Donovan, Richard Bankert, Richard Bankert, Earle Williams, Earle Williams, Jeffrey Hawkins, Jeffrey Hawkins, Huaqing Cai, Huaqing Cai, Nancy Rehak, Nancy Rehak, Daniel Megenhardt, Daniel Megenhardt, Matthias Steiner, Matthias Steiner, } "Convection diagnosis and nowcasting for oceanic aviation applications", Proc. SPIE 7088, Remote Sensing Applications for Aviation Weather Hazard Detection and Decision Support, 708808 (25 August 2008); doi: 10.1117/12.795495; https://doi.org/10.1117/12.795495
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