Physical Oceanography (PO)

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https://hdl.handle.net/1912/7

Department members investigate the dynamics and thermodynamics of ocean circulation. They work globally from the Arctic to the Antarctic and from the Strait of Gibraltar to the Philippine shelf on the full range of oceanic processes, from mixing on centimeter scales to heat balance on the global scale.

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Browsing Physical Oceanography (PO) by Author "Allen, Jessicca"
  • Article
    Global Oceans
    (American Meteorological Society, 2023-09-06) Johnson, Gregory C. ; Lumpkin, Rick ; Atkinson, Chris ; Bilo, Tiago ; Boyer, Tim ; Bringas, Francis ; Carter, Brendan R. ; Cetinic, Ivona ; Chambers, Don P. ; Chan, Duo ; Cheng, Lijing ; Chomiak, Leah ; Cronin, Meghan F. ; Dong, Shenfu ; Feely, Richard A. ; Franz, Bryan A. ; Gao, Meng ; Garg, Jay ; Gilson, John ; Goni, Gustavo ; Hamlington, Benjamin D. ; Hobbs, Will ; Hu, Zeng-Zhen ; Huang, Boyin ; Ishii, Masayoshi ; Jevrejeva, Svetlana ; Johns, William ; Landschutzer, Peter ; Lankhorst, Matthias ; Leuliette, Eric ; Locarnini, Ricardo ; Lyman, John M. ; McPhaden, Michael J. ; Merrifield, Mark A. ; Mishonov, Alexey ; Mitchum, Gary T. ; Moat, Ben I. ; Mrekaj, Ivan ; Nerem, R. Steven ; Purkey, Sarah G. ; Qiu, Bo ; Reagan, James ; Sato, Katsunari ; Schmid, Claudia ; Sharp, Jonathan D. ; Siegel, David A. ; Smeed, David A. ; Stackhouse Jr., Paul W. ; Sweet, William ; Thompson, Philip R. ; Trinanes, Joaquin A. ; Volkov, Denis L. ; Wanninkhof, Rik ; Wen, Caihong ; Westberry, Toby K. ; Widlansky, Matthew J. ; Willis, Josh ; Xie, Ping-Ping ; Yin, Xungang ; Zhang, Huai-min ; Zhang, Li ; Allen, Jessicca ; Camper, Amy V. ; Haley, Bridgette O. ; Hammer, Gregory ; Love-Brotak, S. Elizabeth ; Ohlmann, Laura ; Noguchi, Lukas ; Riddle, Deborah B. ; Veasey, Sara W.
    An unusual “triple-dip” La Niña, described in Sidebar 3.1, had continuing, wide-spread ramifications for the state of ocean and climate in 2022. Triple-dip La Niñas are not unprecedented, but until now have always followed an extreme El Niño. Anomalously low sea-surface temperatures (SSTs) in the eastern tropical Pacific persisted from August 2020 through December 2022, with only a brief intermission in May–July 2021. Strengthened easterly trade winds drove anomalously strong westward surface currents and brought cold waters to the surface in the eastern equatorial Pacific while also accumulating anomalously salty and warm waters in the western equatorial Pacific, raising sea level there. These cold upwelled waters resulted in anomalously large fluxes of carbon dioxide from the ocean to the atmosphere and heat from the atmosphere to the ocean, with anomalously high chlorophyll concentrations found around its edges. Fresh sea-surface salinity (SSS) anomalies strengthened off the equator in the Pacific as the Intertropical Convergence Zone (ITCZ) and South Pacific Convergence Zone and associated rainfall shifted poleward.