FN Archimer Export Format
PT J
TI Chromophoric dissolved organic matter dynamics revealed through the optimization of an optical-biogeochemical model in the NW Mediterranean Sea
BT 
AF Álvarez, Eva
   Cossarini, Gianpiero
   Teruzzi, Anna
   Bruggeman, Jorn
   Bolding, Karsten
   Ciavatta, Stefano
   Vellucci, Vincenzo
   D’Ortenzio, Fabrizio
   Antoine, David
   Lazzari, Paolo
AS 1:1;2:1;3:1;4:2,3;5:2,4;6:5;7:6;8:7;9:7,8;10:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 National Institute of Oceanography and Applied Geophysics - OGS, Trieste, 34010, Italy
   Bolding & Bruggeman ApS, Asperup, 5466, Denmark
   Plymouth Marine Laboratory, Plymouth, PL1 3DH, UK
   Aarhus University, Department of Ecoscience, Silkeborg, 8600, Denmark
   Mercator Ocean International, 31400 Toulouse, France
   Sorbonne Université, CNRS, Institut de la Mer de Villefranche, IMEV, Villefranche-sur-Mer, F-06230, France
   Sorbonne Université, CNRS, Laboratoire d’Océanographie de Villefranche, LOV, Villefranche-sur-Mer, F-06230, France
   Remote Sensing and Satellite Research Group, School of Earth & Planetary Science, Curtin University, Perth, WA 6102, Australia
C2 OGS, ITALY
   BOLDING & BRUGGEMAN APS, DENMARK
   PML, UK
   UNIV AARHUS, DENMARK
   MERCATOR OCEAN, FRANCE
   UNIV SORBONNE, FRANCE
   UNIV SORBONNE, FRANCE
   UNIV CURTIN, AUSTRALIA
IF 4.9
TC 0
UR https://archimer.ifremer.fr/doc/00825/93669/100454.pdf
   https://archimer.ifremer.fr/doc/00825/93669/106407.pdf
LA English
DT Article
CR BOUSSOLE
   DYFAMED
   MOOSE  (DYFAMED)
AB Chromophoric dissolved organic matter (CDOM) significantly contributes to the non-water absorption budget in the Mediterranean Sea. The absorption coefficient of CDOM, αCDOM(λ), is measurable in situ and remotely from different platforms and can be used as an indicator of the concentration of other relevant biogeochemical variables, e.g., dissolved organic carbon. However, our ability to model the biogeochemical processes that determine CDOM concentrations is still limited. Here we propose a novel parametrisation of the CDOM cycle that accounts for the interplay between the light- and nutrient-dependent dynamics of local CDOM production and degradation, as well as its vertical transport. The parameterization is included in a one-dimensional (1D) configuration of the Biogeochemical Flux Model (BFM), which is here coupled to the General Ocean Turbulence Model (GOTM) through the Framework for Aquatic Biogeochemical Models (FABM). Here BFM is augmented with a bio-optical component that revolves spectrally the underwater light transmission. We did run this new GOTM-FABM-BFM configuration to simulate the seasonal αCDOM(λ) cycle at the deep-water site of the BOUSSOLE project in the North-Western Mediterranean Sea. Our results show that accounting for both nutrient and light dependence of CDOM production improves the simulation of the seasonal and vertical dynamics of αCDOM(λ), including a subsurface maximum that forms in spring and progressively intensifies in summer. Furthermore, the model consistently reproduces the higher-than-average concentrations of CDOM per unit chlorophyll concentration observed at BOUSSOLE. The configuration, outputs and sensitivity analyses from this 1D model application will be instrumental for future applications of BFM to the entire Mediterranean Sea in a 3D configuration. 
PY 2023
PD NOV
SO Biogeosciences
SN 1726-4170
PU Copernicus GmbH
VL 20
IS 22
UT 001168792900001
BP 4591
EP 4624
DI 10.5194/bg-20-4591-2023
ID 93669
ER

EF