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| Author | Bourassa, M. A. | ||||
| Title | Uncertainty in scatterometer derived vorticity | Type | $loc['typeConference Article'] | ||
| Year | 2009 | Publication | 2009 IEEE International Geoscience and Remote Sensing Symposium | Abbreviated Journal | |
| Volume | Issue | Pages | III-805 - III-808 | ||
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| Funding | OVWST | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 673 | ||
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| Author | Shin, D.W.; Ahn, J.B. | ||||
| Title | Adaptive Use of TRMM Observations for Tropical Precipitation Forecasts | Type | $loc['typeJournal Article'] | ||
| Year | 2002 | Publication | Journal of the Meteorological Society of Japan | Abbreviated Journal | Jmsj |
| Volume | 80 | Issue | 1 | Pages | 85-97 |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0026-1165 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 831 | ||
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| Author | Legg, S.; Briegleb, B.; Chang, Y.; Chassignet, E.P.; Danabasoglu, G.; Ezer, T.; Gordon, A.L.; Griffies, S.; Hallberg, R.; Jackson, L.; Large, W.; Özgökmen, T.M.; Peters, H.; Price, J.; Riemenschneider, U.; Wu, W.; Xu, X.; Yang, J. | ||||
| Title | Improving Oceanic Overflow Representation in Climate Models: The Gravity Current Entrainment Climate Process Team | Type | $loc['typeJournal Article'] | ||
| Year | 2009 | Publication | Bulletin of the American Meteorological Society | Abbreviated Journal | Bull. Amer. Meteor. Soc. |
| Volume | 90 | Issue | 5 | Pages | 657-670 |
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| ISSN | 0003-0007 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 683 | ||
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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 | ||||
| Abstract | 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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| ISSN | 0003-0007 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ rl18 @ | Serial | 990 | ||
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| Author | Maloney, E.D.; Gettelman, A.; Ming, Y.; Neelin, J.D.; Barrie, D.; Mariotti, A.; Chen, C.-C.; Coleman, D.R.B.; Kuo, Y.-H.; Singh, B.; Annamalai, H.; Berg, A.; Booth, J.F.; Camargo, S.J.; Dai, A.; Gonzalez, A.; Hafner, J.; Jiang, X.; Jing, X.; Kim, D.; Kumar, A.; Moon, Y.; Naud, C.M.; Sobel, A.H.; Suzuki, K.; Wang, F.; Wang, J.; Wing, A.A.; Xu, X.; Zhao, M. | ||||
| Title | Process-Oriented Evaluation of Climate and Weather Forecasting Models | Type | $loc['typeJournal Article'] | ||
| Year | 2019 | Publication | Bulletin of the American Meteorological Society | Abbreviated Journal | Bull. Amer. Meteor. Soc. |
| Volume | 100 | Issue | 9 | Pages | 1665-1686 |
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| Abstract | Realistic climate and weather prediction models are necessary to produce confidence in projections of future climate over many decades and predictions for days to seasons. These models must be physically justified and validated for multiple weather and climate processes. A key opportunity to accelerate model improvement is greater incorporation of process-oriented diagnostics (PODs) into standard packages that can be applied during the model development process, allowing the application of diagnostics to be repeatable across multiple model versions and used as a benchmark for model improvement. A POD characterizes a specific physical process or emergent behavior that is related to the ability to simulate an observed phenomenon. This paper describes the outcomes of activities by the Model Diagnostics Task Force (MDTF) under the NOAA Climate Program Office (CPO) Modeling, Analysis, Predictions and Projections (MAPP) program to promote development of PODs and their application to climate and weather prediction models. MDTF and modeling center perspectives on the need for expanded process-oriented diagnosis of models are presented. Multiple PODs developed by the MDTF are summarized, and an open-source software framework developed by the MDTF to aid application of PODs to centers' model development is presented in the context of other relevant community activities. The paper closes by discussing paths forward for the MDTF effort and for community process-oriented diagnosis. | ||||
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| ISSN | 0003-0007 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1088 | ||
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| Author | Liu, Y.; Tan, Z.-M.; Wu, Z. | ||||
| Title | Noninstantaneous Wave-CISK for the Interaction between Convective Heating and Low-Level Moisture Convergence in the Tropics | Type | $loc['typeJournal Article'] | ||
| Year | 2019 | Publication | Journal of the Atmospheric Sciences | Abbreviated Journal | J. Atmos. Sci. |
| Volume | 76 | Issue | 7 | Pages | 2083-2101 |
| Keywords | Convection; Diabatic heating; Moisture; moisture budget | ||||
| Abstract | The interaction between tropical convective heating and thermally forced circulation is investigated using a global dry primitive-equation model with the parameterization of wave-conditional instability of the second kind (CISK). It is demonstrated that deep convective heating can hardly sustain itself through the moisture convergence at low levels regardless of the fraction of immediate consumption of converged moisture. In contrast, when the fraction is large, shallow convective heating and its forced circulation exhibit preferred growth of small scales. As the “CISK catastrophe” mainly comes from the instantaneous characters of moisture-convection feedback in the conventional wave-CISK, a noninstantaneous wave-CISK is proposed, which highlights the accumulation-consumption (AC) time scale for the convective heating accumulation and/or the converged moisture consumption. In the new wave-CISK, once moisture is converged, the release of latent heat takes place gradually within an AC time scale. In this sense, convective heating is not only related to the instantaneous moisture convergence at the current time, but also to that which occurred in the past period of the AC time scale. The noninstantaneous wave-CISK could guarantee the occurrence of convective heating and/or moisture convergence at larger scales, and then favor the growth of long waves, and thus solve the problem of CISK catastrophe. With the new wave-CISK and AC time scale of 2 days, the simulated convective heating-driven system bears a large similarity to that of the observed convectively coupled Kelvin wave. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0022-4928 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1065 | ||
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| Author | Misra, V.; Mishra, A.; Bhardwaj, A. | ||||
| Title | Simulation of the Intraseasonal Variations of the Indian Summer Monsoon in a Regional Coupled Ocean-Atmosphere Model | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 31 | Issue | 8 | Pages | 3167-3185 |
| Keywords | Asia; Indian Ocean; Mixed layer; Monsoons; Atmosphere-ocean interaction; Regional models | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 557 | ||
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| Author | Zhang, M.; Wu, Z.; Qiao, F. | ||||
| Title | Deep Atlantic Ocean Warming Facilitated by the Deep Western Boundary Current and Equatorial Kelvin Waves | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 31 | Issue | 20 | Pages | 8541-8555 |
| Keywords | Ocean; Atlantic Ocean; Heating; Kelvin waves; Ocean circulation; Oceanic variability; EMPIRICAL MODE DECOMPOSITION; NONSTATIONARY TIME-SERIES; NORTH-ATLANTIC; CLIMATE-CHANGE; HEAT-CONTENT; HIATUS; VARIABILITY; CIRCULATION; TEMPERATURE; PACIFIC | ||||
| Abstract | Increased heat storage in deep oceans has been proposed to account for the slowdown of global surface warming since the end of the twentieth century. How the imbalanced heat at the surface has been redistributed to deep oceans remains to be elucidated. Here, the evolution of deep Atlantic Ocean heat storage since 1950 on multidecadal or longer time scales is revealed. The anomalous heat in the deep Labrador Sea was transported southward by the shallower core of the deep western boundary current (DWBC). Upon reaching the equator around 1980, this heat transport route bifurcated into two, with one continuing southward along the DWBC and the other extending eastward along a narrow strip (about 4 degrees width) centered at the equator. In the 1990s and 2000s, meridional diffusion helped to spread warming in the tropics, making the eastward equatorial warming extension have a narrow head and wider tail. The deep Atlantic Ocean warming since 1950 had overlapping variability of approximately 60 years. The results suggest that the current basinwide Atlantic Ocean warming at depths of 1000-2000 m can be traced back to the subsurface warming in the Labrador Sea in the 1950s. An inference from these results is that the increased heat storage in the twenty-first century in the deep Atlantic Ocean is unlikely to partly account for the atmospheric radiative imbalance during the last two decades and to serve as an explanation for the current warming hiatus. | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 950 | ||
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| Author | Ansong, J.K.; Arbic, B.K.; Simmons, H.L.; Alford, M.H.; Buijsman, M.C.; Timko, P.G.; Richman, J.G.; Shriver, J.F.; Wallcraft, A.J. | ||||
| Title | Geographical Distribution of Diurnal and Semidiurnal Parametric Subharmonic Instability in a Global Ocean Circulation Model | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Journal of Physical Oceanography | Abbreviated Journal | J. Phys. Oceanogr. |
| Volume | 48 | Issue | 6 | Pages | 1409-1431 |
| Keywords | Baroclinic flows; Internal waves; Nonlinear dynamics; Ocean dynamics; Baroclinic models; Ocean models | ||||
| Abstract | The evidence for, baroclinic energetics of, and geographic distribution of parametric subharmonic instability (PSI) arising from both diurnal and semidiurnal tides in a global ocean general circulation model is investigated using 1/12.5° and 1/25° simulations that are forced by both atmospheric analysis fields and the astronomical tidal potential. The paper examines whether PSI occurs in the model, and whether it accounts for a significant fraction of the tidal baroclinic energy loss. Using energy transfer calculations and bispectral analyses, evidence is found for PSI around the critical latitudes of the tides. The intensity of both diurnal and semidiurnal PSI in the simulations is greatest in the upper ocean, consistent with previous results from idealized simulations, and quickly drops off about 5° from the critical latitudes. The sign of energy transfer depends on location; the transfer is positive (from the tides to subharmonic waves) in some locations and negative in others. The net globally integrated energy transfer is positive in all simulations and is 0.5%�10% of the amount of energy required to close the baroclinic energy budget in the model. The net amount of energy transfer is about an order of magnitude larger in the 1/25° semidiurnal simulation than the 1/12.5° one, implying the dependence of the rate of energy transfer on model resolution. | ||||
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| ISSN | 0022-3670 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 976 | ||
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| Author | Xu, X.; Rhines, P.B.; Chassignet, E.P. | ||||
| Title | On Mapping the Diapycnal Water Mass Transformation of the Upper North Atlantic Ocean | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Journal of Physical Oceanography | Abbreviated Journal | J. Phys. Oceanogr. |
| Volume | 48 | Issue | 10 | Pages | 2233-2258 |
| Keywords | Atmosphere-ocean interaction; Boundary currents; Diapycnal mixing; Fronts; Thermocline circulation | ||||
| Abstract | Diapycnal water mass transformation is the essence behind the Atlantic meridional overturning circulation (AMOC) and the associated heat/freshwater transports. Existing studies have mostly focused on the transformation that is forced by surface buoyancy fluxes, and the role of interior mixing is much less known. This study maps the three-dimensional structure of the diapycnal transformation, both surface forced and mixing induced, using results of a high-resolution numerical model that have been shown to represent the large-scale structure of the AMOC and the North Atlantic subpolar/subtropical gyres well. The analyses show that 1) annual mean transformation takes place seamlessly from the subtropical to the subpolar North Atlantic following the surface buoyancy loss along the northward-flowing upper AMOC limb; 2) mixing, including wintertime convection and warm-season restratification by mesoscale eddies in the mixed layer and submixed layer diapycnal mixing, drives transformations of (i) Subtropical Mode Water in the southern part of the subtropical gyre and (ii) Labrador Sea Water in the Labrador Sea and on its southward path in the western Newfoundland Basin; and 3) patterns of diapycnal transformations toward lighter and denser water do not align zonally�the net three-dimensional transformation is significantly stronger than the zonally integrated, two-dimensional AMOC streamfunction (50% in the southern subtropical North Atlantic and 60% in the western subpolar North Atlantic). | ||||
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| ISSN | 0022-3670 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 951 | ||
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