Index Catalog // ScholarsArchive@OSU

Air-sea interaction over ocean fronts and eddies

Creator:: Small, R. J., de Szoeke, Simon P., Xie, S. P., O'Neill, L., Seo, H., Song, Q., Cornillon, P., Spall, M., and Minobe, S.
Abstract:: Air-sea interaction at ocean fronts and eddies exhibits positive correlation between sea surface temperature (SST), wind speed, and heat fluxes out of the ocean, indicating that the ocean is forcing the atmosphere. This contrasts with larger scale climate modes where the negative correlations suggest that the atmosphere is driving the...
Resource Type:: Article
Full Text:: speed and SST (Liu et al., 2000; Chelton et al., 2001; Hashizume et al., 2001). This is a somewhat

A Regional Ocean–Atmosphere Model for Eastern Pacific Climate: Toward Reducing Tropical Biases

Creator:: Xie, Shang-Ping, Miyama, Toru, Wang, Yuoing, Xu, Haiming, de Szoeke, Simon P., Small, R. Justin O., Richards, Kelvin J., Mochizuki, Takashi, and Awaji, Toshiyuki
Abstract:: The tropical Pacific Ocean is a climatically important region, home to El Niño and the Southern Oscillation. The simulation of its climate remains a challenge for global coupled ocean–atmosphere models, which suffer large biases especially in reproducing the observed meridional asymmetry across the equator in sea surface temperature (SST) and...
Resource Type:: Article
Full Text:: Liu 1996), much as it is in developing ENSO (Neelin et al. 1998; Wang and Picaut 2004). Ocean dynamics

Evaluating WRF-Chem aerosol indirect effects in Southeast Pacific marine stratocumulus during VOCALS-REx

Creator:: Saide, P. E., Spak, S. N., Carmichael, G. R., Mena-Carrasco, M. A., Yang, Q., Howell, S., Leon, D. C., Snider, J. R., Bandy, A. R., Collett, J. L., Benedict, K. B., de Szoeke, Simon P., Hawkins, L. N., Allen, G., Crawford, I., Crosier, J., and Springston, S. R.
Abstract:: We evaluate a regional-scale simulation with the WRF-Chem model for the VAMOS (Variability of the American Monsoon Systems) Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx), which sampled the Southeast Pacific's persistent stratocumulus deck. Evaluation of VOCALS-REx ship-based and three aircraft observations focuses on analyzing how aerosol loading affects marine boundary layer (MBL)...
Resource Type:: Article
Full Text:: (Bretherton et al., 2010) and converted to rainfall esti- mates using the Z-R relationship described in

Quasi-Lagrangian Large Eddy Simulations of Cross-Equatorial Flow in the East Pacific Atmospheric Boundary Layer

Creator:: de Szoeke, Simon P. and Bretherton, C. S.
Abstract:: Using a large eddy simulation (LES), the atmospheric boundary layer (ABL) is numerically modeled along 95°W from 8°S to 4°N during boreal autumn, and compared to observations from the East Pacific Investigation of Climate Processes in the Coupled Ocean–Atmosphere System (EPIC) 2001. Since the local ABL winds are predominantly southerly...
Resource Type:: Article
Full Text:: 1 AUGUST 2004 1839D E S Z O E K E A N D B R E T H E R T O N it to a specified profile on an hourly

Stratocumulus Cloud-Top Height Estimates and Their Climatic Implications

Creator:: Zuidema, Paquita, Painemal, David, de Szoeke, Simon P., and Fairall, Chris
Abstract:: A depth-dependent boundary layer lapse rate was empirically deduced from 156 radiosondes released during six month-long research cruises to the southeast Pacific sampling a variety of stratocumulus conditions. The lapse-rate dependence on boundary layer height is weak, decreasing from a best fit of 7.6 to 7.2 K km⁻¹ as the...
Resource Type:: Article
Full Text:: radiosondes within 1 h of the 4-times-daily MODIS overpasses under 1 SEPTEMBER 2009 Z U I D E M A E T A L

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:: the ’2.5h that this drizzle cell was observed in the domain, it reached a maximum intensity of Z 5

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:: (›C/›z), where KC is a scalar proportionality pa- rameter with units of velocity times distance. A

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

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:: , Geophys. Res. Lett., 31, L22110, doi:10.1029/2004GL020751, 2004. Leon, D. C., Wang, Z., and Liu, D

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:: during VOCALS-REx 423 and Liou (1992) was implemented in COAMPS (Liu et al., 2009). The initialization

ScholarsArchive@OSU

Air-sea interaction over ocean fronts and eddies

A Regional Ocean–Atmosphere Model for Eastern Pacific Climate: Toward Reducing Tropical Biases

Evaluating WRF-Chem aerosol indirect effects in Southeast Pacific marine stratocumulus during VOCALS-REx

Quasi-Lagrangian Large Eddy Simulations of Cross-Equatorial Flow in the East Pacific Atmospheric Boundary Layer

Stratocumulus Cloud-Top Height Estimates and Their Climatic Implications

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

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

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

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

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

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