Particulate organic carbon in the deep-water region of the Gulf of Mexico

被引:2
|
作者
Contreras-Pacheco, Yessica Vanessa [1 ]
Herzka, Sharon Z. [1 ]
Vallejo-Espinosa, Gerardo [2 ]
Herguera, Juan Carlos [1 ]
机构
[1] Ctr Sci Res & Higher Educ Ensenada CICESE, Div Oceanog, Ensenada, Mexico
[2] Univ Guadalajara UdG, Dept Engn, Mat Water & Energy Res Lab, Tepatitlan de Morelos, Mexico
关键词
Gulf of Mexico; POC (particulate organic carbon); mesoscale structures; ocean eddies; upper layer; MIXED-LAYER DEPTH; LOOP CURRENT; MESOSCALE EDDIES; INTERANNUAL VARIABILITY; MISSISSIPPI RIVER; CHLOROPHYLL; OCEAN; FLUX; TRANSPORT; EDDY;
D O I
10.3389/fmars.2023.1095212
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Ocean eddies play a major role in lateral and vertical mixing processes of particulate organic carbon (POC), as well as in the transport of heat, salinity, and biogeochemical tracers. In the open waters of the Gulf of Mexico (GoM), however, there are limited observations to characterize how these mesoscale structures affect the spatial distribution of POC in the upper water column, which is important for organic matter cycling and export. We present the distribution patterns of POC relative to mesoscale features throughout the water column in the deep-water region of the GoM during three oceanographic cruises held during the summer months of 2015, 2016, and 2017. Samples were collected under well-stratified upper ocean conditions, which allowed us to assess the spatial and temporal distribution of POC as a function of non-steric sea surface height, density, apparent oxygen utilization, and chlorophyll fluorescence. We further explored the variability of integrated surface layer POC concentrations at stations located within the cores and the edges of cyclonic and anticyclonic eddies, and those collected outside these structures. Although our results indicate mesoscale eddies modulate several important physical and biogeochemical variables and POC concentrations in the upper ocean, these features do not fully explain the spatial distribution of POC concentrations throughout the deep-water region of the GoM. Relatively lower POC concentrations were observed in the border of the cyclonic and the center of the anticyclonic eddies, in contrast to the relatively higher POC concentrations at the center of the cyclonic and the border of anticyclonic eddies. We observed high variability in POC concentration variability outside mesoscale structures, which may be attributed to other processes such as upwelling over the shelves, and the contribution by rivers during the summer especially in the northern and southern GoM.
引用
收藏
页数:16
相关论文
共 50 条
  • [41] Impact of the Deepwater Horizon oil spill on a deep-water coral community in the Gulf of Mexico
    White, Helen K.
    Hsing, Pen-Yuan
    Cho, Walter
    Shank, Timothy M.
    Cordes, Erik E.
    Quattrini, Andrea M.
    Nelson, Robert K.
    Camilli, Richard
    Demopoulos, Amanda W. J.
    German, Christopher R.
    Brooks, James M.
    Roberts, Harry H.
    Shedd, William
    Reddy, Christopher M.
    Fisher, Charles R.
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2012, 109 (50) : 20303 - 20308
  • [42] Deep-water Asteroidea (Echinodermata) collected during the TALUD cruises in the Gulf of California, Mexico
    Hendrickx, Michel E.
    Mah, Christopher
    Magno Zarate-Montes, Carlo
    REVISTA MEXICANA DE BIODIVERSIDAD, 2011, 82 (03) : 798 - 824
  • [43] AUGER TENSION-LEG PLATFORM - CONQUERING THE DEEP-WATER GULF-OF-MEXICO
    BOURGEOIS, TM
    JOURNAL OF PETROLEUM TECHNOLOGY, 1995, 47 (04): : 312 - 313
  • [44] Deep-water oilfield development cost analysis and forecasting - Take gulf of mexico for example
    Shi, Mingyu
    Wang, Jianjun
    Yi, Chenggao
    Bai, Jianhui
    Wang, Jing
    2017 3RD INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND MATERIALS SCIENCE (EEMS 2017), 2017, 94
  • [45] Geometric and seismic interpretation of the Perdido fold belt: Northwestern deep-water Gulf of Mexico
    Camerlo, RH
    Benson, EF
    AAPG BULLETIN, 2006, 90 (03) : 363 - 386
  • [46] High concentration methane hydrate in a silt reservoir from the deep-water Gulf of Mexico
    Phillips, Stephen C.
    Flemings, Peter B.
    Holland, Melanie E.
    Schultheiss, Peter J.
    Waite, William F.
    Jang, Junbong
    Petrou, Ethan G.
    Hammon, Helen
    AAPG BULLETIN, 2020, 104 (09) : 1971 - 1995
  • [48] Reefs, Rigs, and Wrecks: The 2009 Field Season of Deep-water Archaeology in the Gulf of Mexico
    Church, Robert A.
    Warren, Daniel J.
    Westrick, Robert F.
    OCEANS 2010, 2010,
  • [49] Observations of Lophelia pertusa and the surficial geology at a deep-water site in the northeastern Gulf of Mexico
    Schroeder, WW
    HYDROBIOLOGIA, 2002, 471 (1-3) : 29 - 33
  • [50] Observations of Lophelia pertusa and the surficial geology at a deep-water site in the northeastern Gulf of Mexico
    W. W. Schroeder
    Hydrobiologia, 2002, 471 : 29 - 33