Index Catalog // ScholarsArchive@OSU

Cloud-Resolving Large-Eddy Simulation of Tropical Convective Development and Surface Fluxes

Creator:: Skyllingstad, Eric D. and de Szoeke, Simon P.
Abstract:: Cloud-resolving large-eddy simulations (LES) on a 500 km × 500 km periodic domain coupled to a thermodynamic ocean mixed layer are used to study the effect of large-scale moisture convergence M on the convective population and heat and moisture budgets of the tropical atmosphere, for several simulations with M representative...
Resource Type:: Article
Full Text:: Tropical Convective Development and Surface Fluxes ERIC D. SKYLLINGSTAD AND SIMON P. DE SZOEKE College of

A comparison of ship and satellite measurements of cloud properties with global climate model simulations in the southeast Pacific stratus deck

Creator:: Brunke, M. A., de Szoeke, Simon P., Zuidema, P., and Zeng, X.
Abstract:: Here, liquid water path (LWP), cloud fraction, cloud top height, and cloud base height retrieved by a suite of A-train satellite instruments (the CPR aboard CloudSat, CALIOP aboard CALIPSO, and MODIS aboard Aqua) are compared to ship observations from research cruises made in 2001 and 2003–2007 into the stratus/stratocumulus deck...
Resource Type:: Article
Full Text:: climate model simulations in the southeast Pacific stratus deck M. A. Brunke1, S. P. de Szoeke2, P

Surface Flux Observations on the Southeastern Tropical Pacific Ocean and Attribution of SST Errors in Coupled Ocean–Atmosphere Models

Creator:: de Szoeke, Simon P., Fairall, Christopher W., Wolfe, Daniel E., Bariteau, Ludovic, and Zuidema, Paquita
Abstract:: A new dataset synthesizes in situ and remote sensing observations from research ships deployed to the southeastern tropical Pacific stratocumulus region for 7 years in boreal fall. Surface meteorology, turbulent and radiative fluxes, aerosols, cloud properties, and rawinsonde profiles were measured on nine ship transects along 20°S from 75° to...
Resource Type:: Article
Full Text:: Southeastern Tropical Pacific Ocean and Attribution of SST Errors in Coupled Ocean–Atmosphere Models SIMON P

Thermodynamic and Aerosol Controls in Southeast Pacific Stratocumulus

Creator:: Mechem, David B., Yuter, Sandra E., and de Szoeke, Simon P.
Abstract:: A near-large-eddy simulation approach with size-revolving (bin) microphysics is employed to evaluate the relative sensitivity of southeast Pacific marine boundary layer cloud properties to thermodynamic and aerosol parameters. Simulations are based on a heavily drizzling cloud system observed by the NOAA ship Ronald H. Brown during the Variability of the...
Resource Type:: Article
Full Text:: Sciences, North Carolina State University, Raleigh, North Carolina SIMON P. DE SZOEKE College of Oceanic

The MJO and Air-Sea Interaction in TOGA COARE and DYNAMO

Creator:: de Szoeke, Simon P., Edson, James B., Marion, June R., Fairall, Christopher W., and Bariteau, Ludovic
Abstract:: DYNAMO and TOGA-COARE observations and reanalysis-based surface flux products are used to test theories of atmosphere-ocean interaction that explain the Madden-Julian Oscillation (MJO). Negative intraseasonal outgoing longwave radiation, indicating deep convective clouds, is in phase with increased surface wind stress, decreased solar heating, and increased surface turbulent heat flux—mostly evaporation—from...
Resource Type:: Article

Modeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature Perturbations

Creator:: Perlin, Natalie, de Szoeke, Simon P., Chelton, Dudley B., Samelson, Roger M., Skyllingstad, Eric D., and O'Neill, Larry W.
Abstract:: The wind speed response to mesoscale SST variability is investigated over the Agulhas Return Current region of the Southern Ocean using the Weather Research and Forecasting (WRF) Model and the U.S. Navy Coupled Ocean–Atmosphere Mesoscale Prediction System (COAMPS) atmospheric model. The SST-induced wind response is assessed from eight simulations with...
Resource Type:: Article
Full Text:: ., Samelson, R. M., Skyllingstad, E. D., & O’Neill, L. W. (2014). Modeling the Atmospheric Boundary Layer

Observations of Stratocumulus Clouds and Their Effect on the Eastern Pacific Surface Heat Budget along 20 degrees S

Creator:: de Szoeke, Simon P., Yuter, Sandra, Mechem, David, Fairall, Chris W., Burleyson, Casey D., and Zuidema, Paquita
Abstract:: Widespread stratocumulus clouds were observed on nine transects from seven research cruises to the southeastern tropical Pacific Ocean along 20°S, 75°–85°W in October–November of 2001–08. The nine transects sample a unique combination of synoptic and interannual variability affecting the clouds; their ensemble diagnoses longitude–vertical sections of the atmosphere, diurnal cycles...
Resource Type:: Article
Full Text:: Their Effect on the Eastern Pacific Surface Heat Budget along 208S SIMON P. DE SZOEKE,* SANDRA YUTER,1

Ship-Based Observations of the Diurnal Cycle of Southeast Pacific Marine Stratocumulus Clouds and Precipitation

Creator:: Burleyson, Casey D., de Szoeke, Simon P., Yuter, Sandra E., Wilbanks, Matt, and Brewer, W. Alan
Abstract:: The diurnal cycle of marine stratocumulus in cloud-topped boundary layers is examined using ship-based meteorological data obtained during the 2008 Variability of American Monsoon Systems (VAMOS) Ocean–Cloud–Atmosphere–Land Study Regional Experiment (VOCALS-REx). The high temporal and spatial continuity of the ship data, as well as the 31-day sample size, allows the...
Resource Type:: Article
Full Text:: University, Raleigh, North Carolina SIMON P. DE SZOEKE Oregon State University, Corvallis, Oregon SANDRA E

Near-Surface Density Currents Observed in the Southeast Pacific Stratocumulus-Topped Marine Boundary Layer

Creator:: Wilbanks, Matt C., Yuter, Sandra E., de Szoeke, Simon P., Brewer, W. Alan, Miller, Matthew A., Hall, Andrew M., and Burleyson, Casey D.
Abstract:: Density currents (i.e., cold pools or outflows) beneath marine stratocumulus clouds are characterized using 30 days of ship-based observations obtained during the 2008 Variability of American Monsoon Systems (VAMOS) Ocean–Cloud–Atmosphere–Land Study Regional Experiment (VOCALS-REx) in the southeast Pacific. An air density increase criterion applied to the Improved Meteorological (IMET) sensor...
Resource Type:: Article
Full Text:: Southeast Pacific Stratocumulus-Topped Marine Boundary Layer Wilbanks, M. C., Yuter, S. E., de Szoeke, S

A regional real-time forecast of marine boundary layers during VOCALS-REx

Creator:: Wang, S., O'Neill, L. W., Jiang, Q., de Szoeke, Simon P., Hong, X., Jin, H., Thompson, W. T., and Zheng, X.
Abstract:: This paper presents an evaluation and validation of the Naval Research Laboratory's COAMPS® real-time forecasts during the VOCALS-REx over the area off the west coast of Chile/Peru in the Southeast Pacific during October and November 2008. The analyses focus on the marine boundary layer (MBL) structure. These forecasts are compared...
Resource Type:: Article
Full Text:: 10-m wind speed (color shading) and vectors; d) QuickScat wind speed (color shading) and vectors; e

ScholarsArchive@OSU

Cloud-Resolving Large-Eddy Simulation of Tropical Convective Development and Surface Fluxes

A comparison of ship and satellite measurements of cloud properties with global climate model simulations in the southeast Pacific stratus deck

Surface Flux Observations on the Southeastern Tropical Pacific Ocean and Attribution of SST Errors in Coupled Ocean–Atmosphere Models

Thermodynamic and Aerosol Controls in Southeast Pacific Stratocumulus

The MJO and Air-Sea Interaction in TOGA COARE and DYNAMO

Modeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature Perturbations

Observations of Stratocumulus Clouds and Their Effect on the Eastern Pacific Surface Heat Budget along 20 degrees S

Ship-Based Observations of the Diurnal Cycle of Southeast Pacific Marine Stratocumulus Clouds and Precipitation

Near-Surface Density Currents Observed in the Southeast Pacific Stratocumulus-Topped Marine Boundary Layer

A regional real-time forecast of marine boundary layers during VOCALS-REx

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