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Data · dataset · 2026

Coastal zone surface stress with stable stratification

Listed in National Center for Atmospheric Research

Summertime eddy correlation measurements from an offshore tower are analyzed to investigate the dependence of the friction velocity Ï âˆ— for stable conditions on the mean wind speed V, air-sea difference of virtual potential temperature Î´Î¸Ï , and nonstationary submeso motions.

Description

The quantity Î´Î¸Ï sometimes exceeds 3°C, usually because of the advection of warm air from land over cooler water at this site. Thin stable boundary layers result.

Unexpectedly, Ï âˆ—(V) does not depend systematically on the stratification Î´Î¸Ï even for weak winds. For weak winds, Ï âˆ—(V) increases systematically with increasing submeso variations of the wind. The Ï âˆ—(V) relationship for a given V is greater in nonstationary conditions.

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Additionally, this study examines Ï âˆ—(V) as a function of wind direction. The Ï âˆ—(V) relationship appears to be affected by swell direction for weak winds and advection from land for short fetches.

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Provenance · 1 source records, 7 field assertions
SourceKeyLast seenRaw
National Center for Atmospheric Researchab5a60b4-e2dd-41d9-a557-e32c4fa705bf12 d agoJSON v1
FieldAssertionExtractorEvidence
concepts[field].local:field:earth-environmentalmapping · data ucar educonnector:data_ucar_edu@1.0.0
concepts[field].local:field:ocean-atmosphericmapping · data ucar educonnector:data_ucar_edu@1.0.0
created_datesource · data ucar educonnector:data_ucar_edu@1.0.0
descriptionsource · data ucar educonnector:data_ucar_edu@1.0.0/notes
publication_datesource · data ucar educonnector:data_ucar_edu@1.0.0
titlesource · data ucar educonnector:data_ucar_edu@1.0.0/title
updated_datesource · data ucar educonnector:data_ucar_edu@1.0.0