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NASA NTRS · 20260008139

Measure sea level air pressure from space to improve knowledge and forecasting of the atmospheric state

Matthew L Walker McLinden·Bing Lin·Alessandro Battaglia·Emal Rumi·Luis Millan·Nikki C Prive·Gerald M Heymsfield
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Abstract

Modern numerical weather prediction (NWP) and analysis models require globally-observed meteorological data including sea-level pressure (SLP) for accurate operations. Up until now, SLP has only been measured by in situ instruments from ships, buoys, and ocean platforms. These measurements are sparse with large gaps, leaving models starved of this critical information to constrain the atmospheric state. Recent advancements in differential absorption radar (DAR) provide a path to close this critical observation gap through spaceborne observations in the coming decade, improving the analysis models relied upon for atmospheric research and the weather forecasts depended upon daily for public safety and commerce.

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Matthew L Walker McLinden, Bing Lin, Alessandro Battaglia, Emal Rumi, Luis Millan, Nikki C Prive, Gerald M Heymsfield. 2026-08-24. Measure sea level air pressure from space to improve knowledge and forecasting of the atmospheric state. https://ntrs.nasa.gov/citations/20260008139

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