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| Author | Dukhovskoy, D.S.; Yashayaev, I.; Proshutinsky, A.; Bamber, J.L.; Bashmachnikov, I.L.; Chassignet, E.P.; Lee, C.M.; Tedstone, A.J. | ||||
| Title | Role of Greenland Freshwater Anomaly in the Recent Freshening of the Subpolar North Atlantic | Type | $loc['typeJournal Article'] | ||
| Year | 2019 | Publication | Journal of Geophysical Research: Oceans | Abbreviated Journal | J. Geophys. Res. Oceans |
| Volume | 124 | Issue | 5 | Pages | 3333-3360 |
| Keywords | Greenland ice sheet melting; freshwater anomaly; subpolar North Atlantic; subpolar gyre; passive tracer numerical experiment; freshwater budget | ||||
| Abstract | The cumulative Greenland freshwater flux anomaly has exceeded 5000 km3 since the 1990s. The volume of this surplus fresh water is expected to cause substantial freshening in the North Atlantic. Analysis of hydrographic observations in the subpolar seas reveal freshening signals in the 2010s. The sources of this freshening are yet to be determined. In this study, the relationship between the surplus Greenland freshwater flux and this freshening is tested by analyzing the propagation of the Greenland freshwater anomaly and its impact on salinity in the subpolar North Atlantic based on observational data and numerical experiments with and without the Greenland runoff. A passive tracer is continuously released during the simulations at freshwater sources along the coast of Greenland to track the Greenland freshwater anomaly. Tracer budget analysis shows that 44% of the volume of the Greenland freshwater anomaly is retained in the subpolar North Atlantic by the end of the simulation. This volume is sufficient to cause strong freshening in the subpolar seas if it stays in the upper 50�100 m. However, in the model the anomaly is mixed down to several hundred meters of the water column resulting in smaller magnitudes of freshening compared to the observations. Therefore, the simulations suggest that the accelerated Greenland melting would not be sufficient to cause the observed freshening in the subpolar seas and other sources of fresh water have contributed to the freshening. Impacts on salinity in the subpolar seas of the freshwater transport through Fram Strait and precipitation are discussed. | ||||
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| ISSN | 2169-9275 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1029 | ||
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| Author | Duncan, J. B. | ||||
| Title | Atmospheric Power-Law Behavior: A Look into Southeastern US Daily Temperature Extremes | Type | $loc['typeManuscript'] | ||
| Year | 2013 | Publication | Abbreviated Journal | ||
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| Address | Department of Earth, Ocean, and Atmospheric Science | ||||
| Corporate Author | Thesis | $loc['Master's thesis'] | |||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 211 | ||
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| Author | Elsner, J.B.; Strazzo, S.E.; Jagger, T.H.; LaRow, T.; Zhao, M. | ||||
| Title | Sensitivity of Limiting Hurricane Intensity to SST in the Atlantic from Observations and GCMs | Type | $loc['typeJournal Article'] | ||
| Year | 2013 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 26 | Issue | 16 | Pages | 5949-5957 |
| Keywords | Hurricanes/typhoons; Sensitivity studies; Statistics; General circulation models | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 212 | ||
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| Author | Engelman, M. B. | ||||
| Title | A Validation of the FSU/COAPS Climate Model | Type | $loc['typeManuscript'] | ||
| Year | 2008 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | Crop Models, Skill Scores, Seasonal Prediction, Extreme Events | ||||
| Abstract | This study examines the predictability of the Florida State University/Center for Oceanic and Atmospheric Prediction Studies (FSU/COAPS) climate model, and is motivated by the model's potential use in crop modeling. The study also compares real-time ensemble runs (created using persisted SST anomalies) to hindcast ensemble runs (created using weekly updated SST) to asses the effect of SST anomalies on forecast error. Wintertime (DJF, 2 month lead time) surface temperature and precipitation forecasts over the southeastern United States (Georgia, Alabama, and Florida) are evaluated because of the documented links between tropical Pacific SST anomalies and climate in the southeastern United States during the winter season. The global spectral model (GSM) runs at a T63 resolution and then is dynamically downscaled to a 20 x 20 km grid over the southeastern United States using the FSU regional spectral model (RSM). Seasonal, monthly, and daily events from the October 2004 and 2005 model runs are assessed. Seasonal (DJF) plots of real-time forecasts indicate the model is capable of predicting wintertime maximum and minimum temperatures over the southeastern United States. The October 2004 and 2005 real-time model runs both produce temperature forecasts with anomaly errors below 3°C, correlations close to one, and standard deviations similar to observations. Real-time precipitation forecasts are inconsistent. Error in the percent of normal precipitation vary from greater than 100% in the 2004/2005 forecasts to less than 35% error in the 2005/2006 forecasts. Comparing hindcast runs to real-time runs reveals some skill is lost in precipitation forecasts when using a method of SST anomaly persistence if the SST anomalies in the equatorial Pacific change early in the forecast period, as they did for the October 2004 model runs. Further analysis involving monthly and daily model data as well as Brier scores (BS), relative operating characteristics (ROC), and equitable threat scores (ETS), are also examined to confirm these results. | ||||
| Address | Department of Meteorology | ||||
| Corporate Author | Thesis | $loc['Master's thesis'] | |||
| Publisher | Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 607 | ||
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| Author | Enloe, J. | ||||
| Title | ENSO impacts on peak wind gusts in the United States | Type | $loc['typeManuscript'] | ||
| Year | 2002 | Publication | Abbreviated Journal | ||
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| Address | Department of Meteorology | ||||
| Corporate Author | Thesis | $loc['Master's thesis'] | |||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 629 | ||
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| Author | Enloe, J.; O'Brien, J. J.; Smith, S. R. | ||||
| Title | ENSO impacts on peak wind gusts in the United States | Type | $loc['typeReport'] | ||
| Year | 2002 | Publication | Abbreviated Journal | ||
| Volume | Issue | 02-3 | Pages | 41 | |
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| Publisher | Center for Ocean-Atmospheric Prediction Studies, Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Series Editor | Series Title | COAPS Technical Report Series | Abbreviated Series Title | ||
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| Funding | NOAA, NASA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 854 | ||
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| Author | Enloe, J.; O'Brien, J.J.; Smith, S.R. | ||||
| Title | ENSO Impacts on Peak Wind Gusts in the United States | Type | $loc['typeJournal Article'] | ||
| Year | 2004 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 17 | Issue | 8 | Pages | 1728-1737 |
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | NOAA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 458 | ||
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| Author | Enloe, J.; Smith, S. R.; O'Brien, J. J. | ||||
| Title | El Nino/Southern Oscillation impacts on peak wind gusts in the United States | Type | $loc['typeConference Article'] | ||
| Year | 2003 | Publication | 14th Symposium on Global Change and Climate Variations, American Meteorological Society, Long Beach, CA, USA | Abbreviated Journal | |
| Volume | Issue | Pages | cdrom | ||
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| Funding | NOAA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 870 | ||
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| Author | Fairall, C.W., Barnier, B., Berry, D.I, Bourassa, M.A., Bradley, E.F., Clayson, C.A., de Leeuw, G., Drennan, W.M., Gille, S.T., Gulev, S.K., Kent, E.C., McGillis, W.R., Quartly, G.D., Ryabinin, V., Smith, S.R., Weller, R.A., Yelland, M.J. and Zhang, H-M. | ||||
| Title | Observations to Quantify Air-Sea Fluxes and Their Role in Climate Variability and Predictability | Type | $loc['typeConference Article'] | ||
| Year | 2010 | Publication | Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society, Vol. 2 | Abbreviated Journal | |
| Volume | Issue | Pages | 299-313 | ||
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| Publisher | European Space Agency | Place of Publication | Editor | Hall, J., Harrison, D.E. and Stammer, D. (eds.) | |
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| Funding | NOAA, COD, NASA, NEWS | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 270 | ||
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| Author | Farmer, B | ||||
| Title | Evaluation of Bulk Heat Fluxes from Atmospheric Datasets | Type | $loc['typeManuscript'] | ||
| Year | 2012 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | Comparison; Data Sets; Heat Flux; Linearization | ||||
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| Address | Department of Earth Ocean and Atmospheric Sciences | ||||
| Corporate Author | Thesis | $loc['Master's thesis'] | |||
| Publisher | Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Call Number | COAPS @ mfield @ | Serial | 332 | ||
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