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Ocean–Cloud–Atmosphere–Land Interactions in the Southeastern Pacific: The VOCALS Program

Creator:: Mechoso, C. R., Wood, R., Weller, R., Bretherton, C. S., Clarke, A. D., Coe, H., Fairall, C., Farrar, J. T., Feingold, G., Garreaud, R., Grados, C., McWilliams, J., de Szoeke, Simon P., Yuter, S. E., and Zuidema, P.
Abstract:: The present paper describes the Variability of the American Monsoon Systems (VAMOS) Ocean–Cloud–Atmosphere–Land Study (VOCALS), an international research program focused on the improved understanding and modeling of the southeastern Pacific (SEP) climate system on diurnal to interannual time scales. In the framework of the SEP climate, VOCALS has two fundamental...
Resource Type:: Article
Full Text:: , s. P. de szoeke, s. e. yuteR, And P. zuideMA T h e Va r i a b i l i t y o f A m e r i c a n

What Maintains the SST Front North of the Eastern Pacific Equatorial Cold Tongue?

Creator:: de Szoeke, Simon P., Xie, Shang-Ping, Miyama, Toru, Richards, Kelvin J., and Small, R. Justin O.
Abstract:: A coupled ocean–atmosphere regional model suggests a mechanism for formation of a sharp sea surface temperature (SST) front north of the equator in the eastern Pacific Ocean in boreal summer and fall. Meridional convergence of Ekman transport at 5°N is forced by eastward turning of the southeasterly cross-equatorial wind, but...
Resource Type:: Article
Full Text:: Equatorial Cold Tongue?* SIMON P. DE SZOEKE AND SHANG-PING XIE International Pacific Research Center

deSzoekeSimonCEOASMJOAirSea.pdf

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...
Full Text:: The MJO and Air-Sea Interaction in TOGA COARE and DYNAMO de Szoeke, S. P., Edson, J. B., Marion, J. R

deSzoekeSimonCEOASMJOAir-Sea.pdf

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...
Full Text:: Szoeke, S. P., Edson, J. B., Marion, J. R., Fairall, C. W., & Bariteau, L. (2014). The MJO and Air-Sea

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

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

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:: . Howell4, D. C. Leon5, J. R. Snider5, A. R. Bandy6, J. L. Collett7, K. B. Benedict7, S. P. de Szoeke8, L. N

Atmospheric sulfur cycling in the southeastern Pacific – longitudinal distribution, vertical profile, and diel variability observed during VOCALS-REx

Creator:: Yang, M., Huebert, B. J., Blomquist, B. W., Howell, S. G., Shank, L. M., McNaughton, C. S., Clarke, A. D., Hawkins, L. N., Russell, L. M., Covert, D. S., Coffman, D. J., Bates, T. S., Quinn, P. K., Zagorac, N., Bandy, A. R., de Szoeke, Simon P., Zuidema, P. D., Tucker, S. C., Brewer, W. A., Benedict, K. B., and Collett, J. L.
Abstract:: Dimethylsulfide (DMS) emitted from the ocean is a biogenic precursor gas for sulfur dioxide (SO₂) and non-sea-salt sulfate aerosols (SO₄²⁻). During the VAMOS-Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx) in 2008, multiple instrumented platforms were deployed in the Southeastern Pacific (SEP) off the coast of Chile and Peru to study the linkage...
Resource Type:: Article
Full Text:: . S. Covert3, D. J. Coffman4, T. S. Bates4, P. K. Quinn4, N. Zagorac5, A. R. Bandy5, S. P. de Szoeke6

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:: , Naval Research Laboratory, 7 Grace Hopper Ave, MS2, Monterey, CA 93943-5502, USA a r t i c l e i n f o

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:: . DE SZOEKE,� R. JUSTIN O. SMALL,� KELVIN J. RICHARDS,�,** TAKASHI MOCHIZUKI,@ AND TOSHIYUKI AWAJI

ScholarsArchive@OSU

Ocean–Cloud–Atmosphere–Land Interactions in the Southeastern Pacific: The VOCALS Program

What Maintains the SST Front North of the Eastern Pacific Equatorial Cold Tongue?

deSzoekeSimonCEOASMJOAirSea.pdf

deSzoekeSimonCEOASMJOAir-Sea.pdf

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

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

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

Atmospheric sulfur cycling in the southeastern Pacific – longitudinal distribution, vertical profile, and diel variability observed during VOCALS-REx

Air-sea interaction over ocean fronts and eddies

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

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