Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season
Copyrighted by American Geophysical Union. Meteorological conditions during an intensive oceanographic observational program in May through August 2001 along the central Oregon coast are described and related to larger-scale and longer-term conditions. Southward wind stresses of 0.05-0.1 N m⁻² occur...
Main Authors: | , , , , , , , |
---|---|
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2005
|
Subjects: | |
Online Access: | https://doi.org/10.17615/vcdk-2j41 https://cdr.lib.unc.edu/downloads/br86bc31h?file=thumbnail https://cdr.lib.unc.edu/downloads/br86bc31h |
id |
ftcarolinadr:cdr.lib.unc.edu:47429j61w |
---|---|
record_format |
openpolar |
spelling |
ftcarolinadr:cdr.lib.unc.edu:47429j61w 2023-09-05T13:11:36+02:00 Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season Bane, J. M. Levine, M. D. Samelson, R. M. Haines, S. M. Meaux, M. F. Perlin, N. Kosro, P. M. Boyd, T. University of North Carolina at Chapel Hill 2005 https://doi.org/10.17615/vcdk-2j41 https://cdr.lib.unc.edu/downloads/br86bc31h?file=thumbnail https://cdr.lib.unc.edu/downloads/br86bc31h English eng https://doi.org/10.17615/vcdk-2j41 https://cdr.lib.unc.edu/downloads/br86bc31h?file=thumbnail https://cdr.lib.unc.edu/downloads/br86bc31h http://rightsstatements.org/vocab/InC/1.0/ Journal of Geophysical Research, 110(10) coastal meteorology coastal upwelling Article air‐sea interactions Article 2005 ftcarolinadr https://doi.org/10.17615/vcdk-2j41 2023-08-19T22:25:05Z Copyrighted by American Geophysical Union. Meteorological conditions during an intensive oceanographic observational program in May through August 2001 along the central Oregon coast are described and related to larger-scale and longer-term conditions. Southward wind stresses of 0.05-0.1 N m⁻² occurred roughly 75% of the time, with a sustained period of dominantly southward stress from mid-June through July. Wind variations were correlated with variations in the large-scale Aleutian Low and North Pacific High pressure centers; correlations with the continental Thermal Low were small. Intraseasonal oscillations in alongshore wind stress (periods near 20 days) correlated with the north-south position of the jet stream. These stress oscillations drove 20 day oscillations in upper ocean temperature, with a lag of roughly 5 days for maximum correlation and amplitudes near 4°C. The sum of sensible and latent air-sea heat fluxes was generally into the atmosphere through June, then weakly into the ocean thereafter, with fluctuations on synoptic timescales. Semidiurnal fluctuations in surface air temperature were observed at two northern moorings, apparently forced indirectly by nonlinear internal ocean tides. The diurnal cycle of wind stress was similar for both southward and northward wind conditions, with the diurnal alongshore fluctuation southward in the evening and northward in the morning. During southward winds the marine atmospheric boundary layer (MABL) was typically defined clearly by a strong temperature inversion, and a shallow stable internal boundary layer often formed within the MABL over cool upwelled waters, with surface air temperature roughly 1°C lower inshore than offshore. During northward winds, essentially no low-level temperature stratification was observed. Article in Journal/Newspaper aleutian low Carolina Digital Repository (UNC - University of North Carolina) Pacific |
institution |
Open Polar |
collection |
Carolina Digital Repository (UNC - University of North Carolina) |
op_collection_id |
ftcarolinadr |
language |
English |
topic |
coastal meteorology coastal upwelling Article air‐sea interactions |
spellingShingle |
coastal meteorology coastal upwelling Article air‐sea interactions Bane, J. M. Levine, M. D. Samelson, R. M. Haines, S. M. Meaux, M. F. Perlin, N. Kosro, P. M. Boyd, T. Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season |
topic_facet |
coastal meteorology coastal upwelling Article air‐sea interactions |
description |
Copyrighted by American Geophysical Union. Meteorological conditions during an intensive oceanographic observational program in May through August 2001 along the central Oregon coast are described and related to larger-scale and longer-term conditions. Southward wind stresses of 0.05-0.1 N m⁻² occurred roughly 75% of the time, with a sustained period of dominantly southward stress from mid-June through July. Wind variations were correlated with variations in the large-scale Aleutian Low and North Pacific High pressure centers; correlations with the continental Thermal Low were small. Intraseasonal oscillations in alongshore wind stress (periods near 20 days) correlated with the north-south position of the jet stream. These stress oscillations drove 20 day oscillations in upper ocean temperature, with a lag of roughly 5 days for maximum correlation and amplitudes near 4°C. The sum of sensible and latent air-sea heat fluxes was generally into the atmosphere through June, then weakly into the ocean thereafter, with fluctuations on synoptic timescales. Semidiurnal fluctuations in surface air temperature were observed at two northern moorings, apparently forced indirectly by nonlinear internal ocean tides. The diurnal cycle of wind stress was similar for both southward and northward wind conditions, with the diurnal alongshore fluctuation southward in the evening and northward in the morning. During southward winds the marine atmospheric boundary layer (MABL) was typically defined clearly by a strong temperature inversion, and a shallow stable internal boundary layer often formed within the MABL over cool upwelled waters, with surface air temperature roughly 1°C lower inshore than offshore. During northward winds, essentially no low-level temperature stratification was observed. |
author2 |
University of North Carolina at Chapel Hill |
format |
Article in Journal/Newspaper |
author |
Bane, J. M. Levine, M. D. Samelson, R. M. Haines, S. M. Meaux, M. F. Perlin, N. Kosro, P. M. Boyd, T. |
author_facet |
Bane, J. M. Levine, M. D. Samelson, R. M. Haines, S. M. Meaux, M. F. Perlin, N. Kosro, P. M. Boyd, T. |
author_sort |
Bane, J. M. |
title |
Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season |
title_short |
Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season |
title_full |
Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season |
title_fullStr |
Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season |
title_full_unstemmed |
Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season |
title_sort |
atmospheric forcing of the oregon coastal ocean during the 2001 upwelling season |
publishDate |
2005 |
url |
https://doi.org/10.17615/vcdk-2j41 https://cdr.lib.unc.edu/downloads/br86bc31h?file=thumbnail https://cdr.lib.unc.edu/downloads/br86bc31h |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
aleutian low |
genre_facet |
aleutian low |
op_source |
Journal of Geophysical Research, 110(10) |
op_relation |
https://doi.org/10.17615/vcdk-2j41 https://cdr.lib.unc.edu/downloads/br86bc31h?file=thumbnail https://cdr.lib.unc.edu/downloads/br86bc31h |
op_rights |
http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.17615/vcdk-2j41 |
_version_ |
1776205333785477120 |