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| Author | Gentemann, C.L.; Clayson, C.A.; Brown, S.; Lee, T.; Parfitt, R.; Farrar, J.T.; Bourassa, M.; Minnett, P.J.; Seo, H.; Gille, S.T.; Zlotnicki, V. | ||||
| Title | FluxSat: Measuring the Ocean-Atmosphere Turbulent Exchange of Heat and Moisture from Space | Type | $loc['typeJournal Article'] | ||
| Year | 2020 | Publication | Remote Sensing | Abbreviated Journal | Remote Sensing |
| Volume | 12 | Issue | 11 | Pages | 1796 |
| Keywords | air-sea interactions; mesoscale; fluxes | ||||
| Abstract | Recent results using wind and sea surface temperature data from satellites and high-resolution coupled models suggest that mesoscale ocean-atmosphere interactions affect the locations and evolution of storms and seasonal precipitation over continental regions such as the western US and Europe. The processes responsible for this coupling are difficult to verify due to the paucity of accurate air-sea turbulent heat and moisture flux data. These fluxes are currently derived by combining satellite measurements that are not coincident and have differing and relatively low spatial resolutions, introducing sampling errors that are largest in regions with high spatial and temporal variability. Observational errors related to sensor design also contribute to increased uncertainty. Leveraging recent advances in sensor technology, we here describe a satellite mission concept, FluxSat, that aims to simultaneously measure all variables necessary for accurate estimation of ocean-atmosphere turbulent heat and moisture fluxes and capture the effect of oceanic mesoscale forcing. Sensor design is expected to reduce observational errors of the latent and sensible heat fluxes by almost 50%. FluxSat will improve the accuracy of the fluxes at spatial scales critical to understanding the coupled ocean-atmosphere boundary layer system, providing measurements needed to improve weather forecasts and climate model simulations. | ||||
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| ISSN | 2072-4292 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1111 | ||
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| Author | Gierach, M.M.; Bourassa, M.A.; Cunningham, P.; O'Brien, J.J.; Reasor, P.D. | ||||
| Title | Vorticity-Based Detection of Tropical Cyclogenesis | Type | $loc['typeJournal Article'] | ||
| Year | 2007 | Publication | Journal of Applied Meteorology and Climatology | Abbreviated Journal | J. Appl. Meteor. Climatol. |
| Volume | 46 | Issue | 8 | Pages | 1214-1229 |
| Keywords | Cyclogenesis/cyclolysis; Tropics; Vorticity | ||||
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| ISSN | 1558-8424 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | NASA, OSU, TCSP | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 696 | ||
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| Author | Glazer, R. | ||||
| Title | Ice Versus Liquid Water Saturation in Regional Climate Simulations of the Indian Summer Monsoon | Type | $loc['typeManuscript'] | ||
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| Address | Department of Earth Ocean and Atmospheric Science | ||||
| Corporate Author | Thesis | $loc['Ph.D. thesis'] | |||
| Publisher | Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 942 | ||
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| Author | Glazer, R. H.; Misra, V. | ||||
| Title | Ice versus liquid water saturation in simulations of the Indian summer monsoon | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Climate Dynamics | Abbreviated Journal | |
| Volume | Issue | Pages | |||
| Keywords | Indian monsoon; Regional modeling; Saturation vapor pressure; Cloud microphysics scheme | ||||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 943 | ||
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| Author | Goodrick, S. L.; Bourassa, M. A.; Legler, D. M. | ||||
| Title | Impact of Correcting Marine Wind Observations on Air-Sea Flux Fields in the North Atlantic | Type | $loc['typeConference Article'] | ||
| Year | 1998 | Publication | CAS/JSC Working Group on Numerical Experimentation, Research Activities in Atmospheric and Oceanic Modeling, World Meteorological Organization | Abbreviated Journal | |
| Volume | Issue | Pages | 2.7-2.8 | ||
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| Publisher | Place of Publication | Editor | Staniforth, A. | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 754 | ||
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| Author | Goto, Y. | ||||
| Title | Improved Vegetation Characterization and Freeze Statistics in a Regional Spectral Model for the Florida Citrus Farming Region | Type | $loc['typeManuscript'] | ||
| Year | 2008 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | Ensemble Forecast, Climate Model | ||||
| Abstract | This study focused on the effective use of a numerical climate model for agriculture in Florida, especially in the citrus farming region of the Florida peninsula, because of the impact of agriculture to Florida's economy. For the analyses of the ensemble, the climate models used in this study were the FSU/COAPS Global Spectral Model and FSU/COAPS Regional Spectral Model (FSU/COAPS RSM) coupled with a land-surface model. The multi-convective scheme method and variable initial conditions were used for the ensembles. Severe freezes impacting agriculture in Florida were associated with some major climate patterns, such as El Niño and Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO). In the first part of this study, seasonal ensemble integrations of the regional model were examined for the tendencies of freezes in the Florida peninsula during each ENSO or NAO phase is examined. Mean excess values of minimum temperatures from thresholds on the basis of the Generalized Pareto Distribution (GPD), which represents the extreme data in a dataset, were used to analyze the freezes in the regional model. According to some previous studies, El Niño winters obtain fewer freezes than the other ENSO phases. Although the ensemble comprised only 19 winters, the ensemble found variability patterns in minimum temperatures in each climate phase similar to the findings in the previous studies which were based on the observed data. The FSU/COAPS RSM was coupled with Community Land Model 2.0 (CLM2), to represent the land-surface conditions. Although the coupling improved the temperature forecast of the RSM, it still has a cold bias and simulates smaller diurnal temperature changes than actually occur in southern Florida. Among the prescribed surface data, Leaf Area Index (LAI) for southern Florida in the CLM2 is lower than those observed by MODIS (Moderate Resolution Imaging Spectroradiometer). In the first experiment of this part, the sensitivity of the temperature forecast to the LAI in the climate models was investigated, by modifying the LAI data in the CLM2 based on the monthly MODIS observations. In the second experiment, newly created prescribed datasets of LAI and plant functional types for the CLM2 based on the MODIS observations were applied to the RSM. The substitution increased the diurnal temperature change in southern Florida slightly but almost consistently. | ||||
| Address | Department of Meteorology | ||||
| Corporate Author | Thesis | $loc['Ph.D. thesis'] | |||
| Publisher | Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 586 | ||
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| Author | Goto, Y.; Shin, D. W.; O'Brien, J. J. | ||||
| Title | Sensitivity of leaf area index in Florida to temperature simulation by FSURSM | Type | $loc['typeReport'] | ||
| Year | 2006 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | 5-21 | ||
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| Series Editor | Series Title | Research Activities in Atmospheric and Ocean Modeling, CAS/JSC Working Group on Numerical Experimentation | Abbreviated Series Title | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 930 | ||
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| Author | Gouillon, F | ||||
| Title | Internal Wave Propagation and Numerically Induced Diapycnal Mixing in Oceanic General Circulation Models | Type | $loc['typeManuscript'] | ||
| Year | 2010 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | spurious mixing, numerical modeling, internal wave, tide | ||||
| Abstract | Numerical ocean models have become powerful tools for providing a realistic view of the ocean state and for describing ocean processes that are difficult to observe. Recent improvements in model performance focus on simulating realistic ocean interior mixing rates, as ocean mixing is the main physical process that creates water masses and maintains their properties. Below the mixed layer, diapycnal mixing primarily arises from the breaking of internal waves, whose energy is largely supplied by winds and tides. This is particularly true in abyssal regions, where the barotropic tide interacts with rough topography and where high levels of diapycnal mixing have been recorded (e.g., the Hawaiian Archipelago). Many studies have discussed the representation of internal wave generation, propagation, and evolution in ocean numerical models. Expanding on these studies, this work seeks to better understand the representation of internal wave dynamics, energetics, and their associated mixing in several different classes of widely used ocean models (e.g., the HYbrid Coordinate Ocean Model, HYCOM; the Regional Ocean Modeling System, ROMS; and the MIT general circulation model, MITgcm). First, a multi-model study investigates the representation of internal waves for a wide spectrum of numerical choices, such as the horizontal and vertical resolution, the vertical coordinate, and the choice of the numerical advection scheme. Idealized configurations are compared to their corresponding analytical solutions. Some preliminary results of realistic baroclinic tidal simulations are shown for the Gulf of Mexico. Second, the spurious diapycnal mixing that exists in models with fixed vertical coordinates (i.e., geopotential and terrain following) is documented and quantified. This purely numerical error arises because, in fixed-coordinate models, the numerical framework cannot properly maintain the adiabatic properties of an advected water parcel. This unrealistic mixing of water masses can be a source of major error in both regional and global ocean models. We use the tracer flux method to compute the spurious diapycnal diffusivities for both a lockexchange scenario and a propagating internal wave field using all three models. Results for the lock exchange experiments are compared to the results of a recent study. Our results, obtained by using three different model classes, provide a comprehensive analysis of the impact of model resolution choice and numerical framework on the magnitude of the spurious diapycnal mixing and the representation of internal waves. | ||||
| Address | Department of Oceanography | ||||
| Corporate Author | Thesis | $loc['Ph.D. thesis'] | |||
| Publisher | Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 571 | ||
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| Author | Gouillon, F. | ||||
| Title | Internal wave generation over a ridge using the HYbrid Coordinate Ocean Model (HYCOM) | Type | $loc['typeConference Article'] | ||
| Year | 2008 | Publication | AGU, Orlando, FL | Abbreviated Journal | |
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 689 | ||
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| Author | Gouillon, F.; Dukhovskoy, D. D.; Morey, S. L.; O'Brien, J. J. | ||||
| Title | Modeling tides in a semi-enclosed basin: A case study of the Gulf of Mexico | Type | $loc['typeReport'] | ||
| Year | 2006 | Publication | Abbreviated Journal | ||
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| Publisher | World Meteorological Organization | Place of Publication | Geneva, Switzerland, | Editor | Cote, J. |
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| Series Editor | Series Title | Research Activities in Atmospheric and Ocean Modeling, Report No. 36 | Abbreviated Series Title | ||
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| Funding | ONR, NASA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 925 | ||
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