| Title: |
Wet deposition in the remote western and central Mediterranean as a source of trace metals to surface seawater |
| Authors: |
Desboeufs, Karine; Fu, Franck; Bressac, Matthieu; Tovar-Sánchez, Antonio; Triquet, Sylvain; Doussin, Jean-François; Giorio, Chiara; Chazette, Patrick; Disnaquet, Julie; Feron, Anaïs; Formenti, Paola; Maisonneuve, Franck; Rodríguez-Romero, Araceli; Zapf, Pascal; Dulac, François; Guieu, Cécile |
| Contributors: |
Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Laboratoire d'océanographie de Villefranche (LOV); Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV); Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Institute of Marine Sciences of Andalusia (ICMAN); Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC); Laboratoire Chimie de l'environnement (LCE); Aix Marseille Université (AMU)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS); Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)); Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA); Chimie Atmosphérique Expérimentale (CAE); Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)); Scripps Institution of Oceanography (SIO - UC San Diego); University of California San Diego (UC San Diego); University of California (UC)-University of California (UC); The authors wish to thank Thierry Alix, the captain of the R/V Pourquoi Pas?, as well as the whole crew and technical staff for their involvement in the scientific operation. We gratefully thank Thibaut Wagener for his involvement in the trace metals clean marine sampling and Mickaël Tharaud for the HRICP-MS analysis. We thank the Leosphere technical support team and especially Alexandre Menard for their remote assistance with lidar repair under difficult offshore conditions. Hélène Ferré and the AERIS/SEDOO service are acknowledged for real-time collection during the cruise of maps from operational satellites and forecast models used in this study, with appreciated contributions from EUMETSAT and AERIS/ICARE for the MSG/SEVIRI products. EUMETNET is acknowledged for providing the pan-European weather radar composite images through its OPERA programme.We acknowledge the US National Oceanic and Atmospheric Administration (NOAA) Air Resources Laboratory (ARL) for the provision of the HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) model, via the NOAA ARL READY website (http://ready.arl.noaa.gov, last access: 11 February 2022), used in this publication. This study is a contribution to the PEACETIME project (http://peacetime-project.org; last access: 5 April 2021), a joint initiative of the MERMEX and ChArMEx programmes supported by CNRS-INSU, IFREMER, CEA and Météo-France as part of the decadal meta-programme MISTRALS coordinated by CNRS-INSU. PEACETIME was endorsed as a process study by GEOTRACES and is also a contribution to IMBER and SOLAS international programmes. The authors gratefully thank Rachel Shelley and the anonymous reviewer for their useful comments and critiques that have contributed to improving the manuscript. |
| Source: |
ISSN: 1680-7316. |
| Publisher Information: |
CCSD; European Geosciences Union |
| Publication Year: |
2022 |
| Collection: |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
| Subject Terms: |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment |
| Description: |
International audience ; This study reports the only recent characterization of two contrasted wet deposition events collected during the PEACETIME (ProcEss studies at the Air-sEa Interface after dust deposition in the MEditerranean Sea) cruise in the open Mediterranean Sea (Med Sea) and their impact on trace metal (TM) marine stocks. Rain samples were analysed for Al, 12 TMs (Co, Cd, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Ti, V and Zn) and nutrient (N, P, dissolved organic carbon) concentrations. The first rain sample collected in the Ionian Sea (Rain ION) was a typical regional background wet deposition event, whereas the second rain sample collected in the Algerian Basin (Rain FAST) was a Saharan dust wet deposition event. Even in the remote Med Sea, all background TM inputs presented an anthropogenic signature, except for Fe, Mn and Ti. The concentrations of TMs in the two rain samples were significantly lower compared to concentrations in rains collected at coastal sites reported in the literature, due to the decrease in anthropogenic emissions during the preceding decades. The atmospheric TM inputs were mainly dissolved forms, even in dusty Rain FAST. The TM stocks in the mixed layer (ML, 0-20 m) at the FAST station before and after the event showed that the atmospheric inputs were a significant supply of particulate TMs and dissolved Fe and Co for surface seawater. Even if the wet deposition delivers TMs mainly in soluble form, the post-deposition aerosol dissolution could to be a key additional pathway in the supply of dissolved TMs. At the scale of the western and central Mediterranean, the atmospheric inputs were of the same order of magnitude as ML stocks for dissolved Fe, Co and Zn, highlighting the role of the atmosphere in their Published by Copernicus Publications on behalf of the European Geosciences Union. 2310 K. Desboeufs et al.: Wet deposition in the remote western and central Mediterranean biogeochemical cycles in the stratified Med Sea. In case of intense dust-rich wet deposition events, the role of ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.5194/acp-22-2309-2022 |
| Availability: |
https://hal.science/hal-03598578; https://hal.science/hal-03598578v1/document; https://hal.science/hal-03598578v1/file/acp-22-2309-2022.pdf; https://doi.org/10.5194/acp-22-2309-2022 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.3DB622CA |
| Database: |
BASE |