| Records |
| Author |
Steffen, J.; Bourassa, M. |
| Title |
Barrier Layer Development Local to Tropical Cyclones based on Argo Float Observations |
Type |
$loc['typeJournal Article'] |
| Year |
2018 |
Publication |
Journal of Physical Oceanography |
Abbreviated Journal |
J. Phys. Oceanogr. |
| Volume |
48 |
Issue |
9 |
Pages |
1951-1968 |
| Keywords |
SEA-SURFACE TEMPERATURE; UPPER-OCEAN RESPONSE; NINO SOUTHERN-OSCILLATION; MIXED-LAYER; INDIAN-OCEAN; HEAT-BUDGET; NUMERICAL SIMULATIONS; HURRICANES; VARIABILITY; PACIFIC |
| Abstract |
The objective of this study is to quantify barrier layer development due to tropical cyclone (TC) passage using Argo float observations of temperature and salinity. To accomplish this objective, a climatology of Argo float measurements is developed from 2001 to 2014 for the Atlantic, eastern Pacific, and central Pacific basins. Each Argo float sample consists of a prestorm and poststorm temperature and salinity profile pair. In addition, a no-TC Argo pair dataset is derived for comparison to account for natural ocean state variability and instrument sensitivity. The Atlantic basin shows a statistically significant increase in barrier layer thickness (BLT) and barrier layer potential energy (BLPE) that is largely attributable to an increase of 2.6 m in the post-TC isothermal layer depth (ITLD). The eastern Pacific basin shows no significant changes to any barrier layer characteristic, likely due to a shallow and highly stratified pycnocline. However, the near-surface layer freshens in the upper 30 m after TC passage, which increases static stability. Finally, the central Pacific has a statistically significant freshening in the upper 20-30 m that increases upper-ocean stratification by similar to 35%. The mechanisms responsible for increases in BLPE vary between the Atlantic and both Pacific basins; the Atlantic is sensitive to ITLD deepening, while the Pacific basins show near-surface freshening to be more important in barrier layer development. In addition, Argo data subsets are used to investigate the physical relationships between the barrier layer and TC intensity, TC translation speed, radial distance from TC center, and time after TC passage. |
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0022-3670 |
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$loc['no'] |
| Call Number |
COAPS @ user @ |
Serial |
970 |
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| Author |
Hoffman, R.N.; Privé, N.; Bourassa, M. |
| Title |
Comments on “Reanalyses and Observations: What's the Difference?” |
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$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Bulletin of the American Meteorological Society |
Abbreviated Journal |
Bull. Amer. Meteor. Soc. |
| Volume |
98 |
Issue |
11 |
Pages |
2455-2459 |
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0003-0007 |
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$loc['no'] |
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COAPS @ mfield @ |
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371 |
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| Author |
Hoffman, R.N.; Privé, N.; Bourassa, M. |
| Title |
Comments on “Reanalyses and Observations: What's the Difference?” |
Type |
$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Bulletin of the American Meteorological Society |
Abbreviated Journal |
Bull. Amer. Meteor. Soc. |
| Volume |
98 |
Issue |
11 |
Pages |
2455-2459 |
| Keywords |
GEOPHYSICAL DATA; marine surface winds; energy and water cycles |
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Are there important differences between reanalysis data and familiar observations and measurements? If so, what are they? This essay evaluates four possible answers that relate to: the role of inference, reliance on forecasts, the need to solve an ill-posed inverse problem, and understanding of errors and uncertainties. The last of these is argued to be most significant. The importance of characterizing uncertainties associated with results—whether those results are observations or measurements, analyses or reanalyses, or forecasts—is emphasized. |
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0003-0007 |
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$loc['no'] |
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COAPS @ rl18 @ |
Serial |
990 |
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| Author |
Dukhovskoy, D; Bourassa, M |
| Title |
Comparison of ocean surface wind products in the perspective of ocean modeling of the Nordic Seas |
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$loc['typeConference Article'] |
| Year |
2011 |
Publication |
OCEANS 2011 |
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scatterometer winds; Arctic Ocean; ocean modeling |
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MTS/IEEE OCEANS Conference |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
315 |
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| Author |
Bourassa, MA; Weissman, DE |
| Title |
The development and application of a sea surface stress model function for the QuikSCAT and ADEOS-II SeaWinds scatterometers |
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$loc['typeConference Article'] |
| Year |
2003 |
Publication |
IEEE International Symposium on Geoscience and Remote Sensing (IGARSS) |
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239-241 |
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component; surface stress; SeaWinds; scatterometer; validation |
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23rd International Geoscience and Remote Sensing Symposium (IGARSS 2003) |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
485 |
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| Author |
Holbach, H.M.; Bourassa, M.A. |
| Title |
Platform and Across-Swath Comparison of Vorticity Spectra From QuikSCAT, ASCAT-A, OSCAT, and ASCAT-B Scatterometers |
Type |
$loc['typeJournal Article'] |
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2017 |
Publication |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
Abbreviated Journal |
IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing |
| Volume |
10 |
Issue |
5 |
Pages |
2205-2213 |
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Consistency; intercalibration; scatterometer; vorticity |
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1939-1404 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
21 |
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Ali, M.M.; Bourassa, M.A.; Bhowmick, S.A.; Sharma, R.; Niharika, K. |
| Title |
Retrieval of Wind Stress at the Ocean Surface From AltiKa Measurements |
Type |
$loc['typeJournal Article'] |
| Year |
2016 |
Publication |
IEEE Geoscience and Remote Sensing Letters |
Abbreviated Journal |
IEEE Geosci. Remote Sensing Lett. |
| Volume |
13 |
Issue |
6 |
Pages |
821-825 |
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AltiKa; artificial neural networks (ANNs); wind stress |
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1545-598X |
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$loc['no'] |
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COAPS @ mfield @ |
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29 |
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Ali, M.M.; Bhowmick, S.A.; Sharma, R.; Chaudhury, A.; Pezzullo, J.C.; Bourassa, M.A.; Ramana, I.V.; Niharika, K. |
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An Artificial Neural Network Model Function (AMF) for SARAL-Altika Winds |
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$loc['typeJournal Article'] |
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2015 |
Publication |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
Abbreviated Journal |
IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing |
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8 |
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11 |
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5317-5323 |
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AltiKa; artificial neural network (ANN); geophysical data records; wind speed |
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1939-1404 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
118 |
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| Author |
Ali, M.M.; Bhat, G.S.; Long, D.G.; Bharadwaj, S.; Bourassa, M.A. |
| Title |
Estimating Wind Stress at the Ocean Surface From Scatterometer Observations |
Type |
$loc['typeJournal Article'] |
| Year |
2013 |
Publication |
IEEE Geoscience and Remote Sensing Letters |
Abbreviated Journal |
IEEE Geosci. Remote Sensing Lett. |
| Volume |
10 |
Issue |
5 |
Pages |
1129-1132 |
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Atmospheric stability; neutral stability; scatterometer; wind stress |
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1545-598X |
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NASA, OVWST |
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$loc['no'] |
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COAPS @ mfield @ |
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184 |
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| Author |
Weihs, R.; Bourassa, MA |
| Title |
A comparison of modeled diurnally varying sea surface temperatures to geostationary satellite data |
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$loc['typeConference Article'] |
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2012 |
Publication |
IEEE International Symposium on Geoscience and Remote Sensing IGARSS |
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5764-5766 |
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IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Munich, Germany |
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$loc['no'] |
| Call Number |
COAPS @ mfield @ |
Serial |
255 |
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