An operational overview of the EXport processes in the ocean from RemoTe sensing (EXPORTS) northeast pacific field deployment
Siegel, David A. (University of California)
Cetinić, Ivona (Universities Space Research Association)
Graff, Jason R. (Oregon State University)
Lee, Craig M. (University of Washington)
Nelson, Norman (University of California)
Perry, Mary Jane (University of Washington)
Ramos, Inia Soto (Universities Space Research Association)
Steinberg, Deborah K. (College of William and Mary)
Buesseler, Ken (Woods Hole Oceanographic Institution)
Hamme, Roberta (University of Victoria BC)
Fassbender, Andrea J. (National Oceanic and Atmospheric Administration)
Nicholson, David (Woods Hole Oceanographic Institution)
Omand, Melissa M. (University of Rhode Island)
Robert, Marie (Fisheries and Oceans Canada)
Thompson, Andrew (California Institute of Technology (Estats Units d'Amèrica))
Amaral, Vinicius (University of California)
Behrenfeld, Michael (Oregon State University)
Benitez-Nelson, Claudia (University of South Carolina)
Bisson, Kelsey (Oregon State University)
Boss, Emmanuel (University of Maine)
Boyd, Philip W. (Institute for Marine and Antarctic Studies)
Brzezinski, Mark (University of California)
Buck, Kristen (University of South Florida)
Burd, Adrian (University of Georgia)
Burns, Shannon (University of South Florida)
Caprara, Salvatore (University of South Florida)
Carlson, Craig (University of California)
Cassar, Nicolas (Duke University)
Close, Hilary G. (University of Miami)
D'Asaro, Eric (University of Washington)
Durkin, Colleen (California State University)
Erickson, Zachary (NASA Goddard Space Flight Center)
Estapa, Margaret L. (University of Maine)
Fields, Erik (University of California)
Fox, James (Oregon State University)
Freeman, Scott (NASA Goddard Space Flight Center)
Gifford, Scott (University of North Carolina at Chapel Hill)
Gong, Weida (University of North Carolina at Chapel Hill)
Gray, Deric (United States Naval Research Laboratory)
Guidi, Lionel (Sorbonne University)
Haëntjens, Nils (University of Maine)
Halsey, Kim (Oregon State University)
Huot, Yannick (Université de Sherbrooke)
Hansell, Dennis (University of Miami)
Jenkins, Bethany D. (University of Rhode Island)
Karp-Boss, Lee (University of Maine)
Kramer, Sasha (University of California)
Lam, Phoebe (University of California)
Lee, Jong Mi (University of California)
Maas, Amy (Bermuda Institute of Ocean Sciences)
Marchal, Olivier (Woods Hole Oceanographic Institution)
Marchetti, Adrian (University of North Carolina at Chapel Hill)
McDonnell, Andrew (University of Alaska Fairbanks)
McNair, Heather (University of Rhode Island)
Menden-Deuer, Susanne (University of Rhode Island)
Morison, Francoise (University of Rhode Island)
Niebergall, Alexandria K. (Duke University)
Passow, Uta (Memorial University of Newfoundland)
Popp, Brian N. (University of Hawai'i at Mānoa)
Potvin, Geneviève (Université de Sherbrooke)
Resplandy, Laure (Princeton University)
Roca Martí, Montserrat (Woods Hole Oceanographic Institution)
Roesler, Collin (Bowdoin College)
Rynearson, Tatiana (University of Rhode Island)
Traylor, Shawnee (Woods Hole Oceanographic Institution)
Santoro, Alyson (University of California)
Seraphin, Kanesa Duncan (University of Hawai'i at Mānoa)
Sosik, Heidi M. (Woods Hole Oceanographic Institution)
Stamieszkin, Karen (College of William and Mary)
Stephens, Brandon (University of California)
Tang, Weiyi (Duke University)
van Mooy, Benjamin (Woods Hole Oceanographic Institution)
Xiong, Yuanheng (University of North Dakota)
Zhang, Xiaodong (University of Southern Mississippi)

Data:	2021
Resum:	The goal of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) field campaign is to develop a predictive understanding of the export, fate, and carbon cycle impacts of global ocean net primary production. To accomplish this goal, observations of export flux pathways, plankton community composition, food web processes, and optical, physical, and biogeochemical (BGC) properties are needed over a range of ecosystem states. Here we introduce the first EXPORTS field deployment to Ocean Station Papa in the Northeast Pacific Ocean during summer of 2018, providing context for other papers in this special collection. The experiment was conducted with two ships: a Process Ship, focused on ecological rates, BGC fluxes, temporal changes in food web, and BGC and optical properties, that followed an instrumented Lagrangian float; and a Survey Ship that sampled BGC and optical properties in spatial patterns around the Process Ship. An array of autonomous underwater assets provided measurements over a range of spatial and temporal scales, and partnering programs and remote sensing observations provided additional observational context. The oceanographic setting was typical of late-summer conditions at Ocean Station Papa: a shallow mixed layer, strong vertical and weak horizontal gradients in hydrographic properties, sluggish sub-inertial currents, elevated macronutrient concentrations and low phytoplankton abundances. Although nutrient concentrations were consistent with previous observations, mixed layer chlorophyll was lower than typically observed, resulting in a deeper euphotic zone. Analyses of surface layer temperature and salinity found three distinct surface water types, allowing for diagnosis of whether observed changes were spatial or temporal. The 2018 EXPORTS field deployment is among the most comprehensive biological pump studies ever conducted. A second deployment to the North Atlantic Ocean occurred in spring 2021, which will be followed by focused work on data synthesis and modeling using the entire EXPORTS data set.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Biological pump ; Carbon cycle ; Export pathways ; NASA field campaign ; NPP fates ; Organic carbon export
Publicat a:	Elementa (Washington DC), Vol. 9, Issue 1 (July 2021) , art. 00107, ISSN 2325-1026

DOI: 10.1525/elementa.2020.00107

31 p, 5.7 MB

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