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Operational Use of the AIRS Total Column Ozone Retrievals Along with the RGB Air Mass Product as Part of the GOES-R Proving Ground
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Author and Affiliation:
Folmer, Michael(Maryland Univ., Cooperative Institute of Climate and Satellites (CICS), MD, United States);
Zavodsky, Bradley(NASA Marshall Space Flight Center, Huntsville, AL, United States);
Molthan, Andrew(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Abstract: The National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Prediction (NCEP) Hydrometeorological Prediction Center (HPC) and Ocean Prediction Center (OPC) provide short-term and medium-range forecast guidance of heavy precipitation, strong winds, and other features often associated with mid-latitude cyclones over both land and ocean. As a result, detection of factors that lead to rapid cyclogenesis and high wind events is key to improving forecast skill. One phenomenon that has been identified with these events is the stratospheric intrusion that occurs near tropopause folds. This allows for deep mixing near the top of the atmosphere where dry air high in ozone concentrations and potential vorticity descends (sometimes rapidly) deep into the mid-troposphere. Observations from satellites can aid in detection of these stratospheric air intrusions (SAI) regions. Specifically, multispectral composite imagery assign a variety of satellite spectral bands to the red, green, and blue (RGB) color components of imagery pixels and result in color combinations that can assist in the detection of dry stratospheric air associated with PV advection, which in turn may alert forecasters to the possibility of a rapidly strengthening storm system. Single channel or RGB satellite imagery lacks quantitative information about atmospheric moisture unless the sampled brightness temperatures or other data are converted to estimates of moisture via a retrieval process. Thus, complementary satellite observations are needed to capture a complete picture of a developing storm system. Here, total column ozone retrievals derived from a hyperspectral sounder are used to confirm the extent and magnitude of SAIs. Total ozone is a good proxy for defining locations and intensity of SAIs and has been used in studies evaluating that phenomenon (e.g. Tian et al. 2007, Knox and Schmidt 2005). Steep gradients in values of total ozone seen by satellites have been linked to stratosphere-troposphere exchange (WMO, 1985).
Publication Date: Dec 03, 2012
Document ID:
20130001873
(Acquired Jan 20, 2013)
Subject Category: METEOROLOGY AND CLIMATOLOGY
Report/Patent Number: M12-2307
Document Type: Oral/Visual Presentation
Meeting Information: American Geophysical Union (AGU) 45th Annual Meeting; 3-7 Dec. 2012; San Francisco, CA; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 1p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: AIR MASSES; OZONE; HYDROMETEOROLOGY; GAS COMPOSITION; ATMOSPHERIC MOISTURE; BRIGHTNESS TEMPERATURE; SATELLITE IMAGERY; TROPOSPHERE; VORTICITY; INTRUSION; SATELLITE OBSERVATION
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