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Variational assimilation of web camera-derived estimates of visibility for Alaska aviation
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2021
Source: Experimental Results, 2
Details:
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Journal Title:Experimental Results
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Personal Author:
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NOAA Program & Office:
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Description:The Real Time Mesoscale Analysis (RTMA), a two-dimensional variational analysis algorithm, is used to provide hourly analyses of surface sensible weather elements for situational awareness at spatial resolutions of 3Â km over Alaska. In this work we focus on the analysis of horizontal visibility in Alaska, which is a region prone to weather related aviation accidents that are in part due to a relatively sparse observation network. In this study we evaluate the impact of assimilating estimates of horizontal visibility derived from a novel network of web cameras in Alaska with the RTMA. Results suggest that the web camera-derived estimates of visibility can capture low visibility conditions and have the potential to improve the RTMA visibility analysis under conditions of low instrument flight rules and instrument flight rules.
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Keywords:
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Source:Experimental Results, 2
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Place as Subject:
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Rights Information:CC BY
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Compliance:Submitted
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