FN Archimer Export Format PT J TI The Solomon Sea: its circulation, chemistry, geochemistry and biology explored during two oceanographic cruises BT AF GANACHAUD, Alexandre CRAVATTE, Sophie SPRINTALL, Janet GERMINEAUD, Cyril ALBERTY, Marion JEANDEL, Catherine ELDIN, Gerard METZL, Nicolas BONNET, Sophie BENAVIDES, Mar HEIMBURGER, Lars-Eric LEFEVRE, Jerome MICHAEL, Susanna RESING, Joseph QUEROUE, Fabien SARTHOU, Geraldine RODIER, Martine BERTHELOT, Hugo BAURAND, Francois GRELET, Jacques HASEGAWA, Takuya KESSLER, William KILEPAK, Moyep LACAN, Francois PRIVAT, Emilien SEND, Uwe VAN BEEK, Pieter SOUHAUT, Marc SONKE, Jeroen E. AS 1:1;2:1,2;3:3;4:1;5:3;6:1;7:1;8:5;9:4;10:4;11:4;12:2;13:6,7;14:6,7;15:8;16:8;17:9;18:4;19:10;20:10;21:11;22:12;23:13;24:1;25:1;26:;27:1;28:1;29:14; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;18:;19:;20:;21:;22:;23:;24:;25:;26:;27:;28:;29:; C1 Univ Toulouse, CNRS, LEGOS, CNES,IRD, Toulouse, France. CNRS, LEGOS, IRD, UPS,CNES,UMR5566, Noumea, New Caledonia. Scripps Inst Oceanog, La Jolla, CA USA. Univ Toulon & Var, Aix Marseille Univ, CNRS, Mediterranean Inst Oceanog,INSU,IRD,UM 110, Noumea, New Caledonia. Univ Paris 06, UPMC, Sorbonne Univ, CNRS,IRD,MNHN,LOCEAN,IPSL, Paris, France. Joint Inst Study Atmosphere & Oceans, Seattle, WA USA. Pacific Marine Environm Lab, Seattle, WA USA. CNRS, IFREMER, IUEM,Technopole Brest Iroise, IRD,UBO,LEMAR,UMR 6539,Lab Sci Environm Marin, Pl Nicolas Copern, Plouzane, France. Univ Polynesie Francaise, Inst Malarme Ifremer, UMR IRD, Ctr IRD Tahiti,Ecosyst Insulaires Oceaniens, Faaa, French Polynesi, France. Ctr IFREMER, IRD, US IMAGO, Plouzane, France. Japan Agcy Marine Earth Sci & Technol, Yokosuka, Kanagawa, Japan. NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA. Univ Papua New Guinea, Port Moresby, Papua N Guinea. Univ Toulouse, CNRS, CNES, GET,UMR5563,IRD,UPS, Toulouse, France. C2 UNIV TOULOUSE, FRANCE CNRS, FRANCE UNIV CALIF SAN DIEGO, USA UNIV TOULON, FRANCE UNIV PARIS 06, FRANCE JISAO, USA PACIFIC MARINE ENVIRONM LAB, USA CNRS, FRANCE UNIV POLYNESIE FRANCAISE, FRANCE IRD, FRANCE JAMSTEC, JAPAN NOAA, USA UNIV PAPUA NEW GUINEA, PAPUA NEW GUINEA UNIV TOULOUSE, FRANCE UM LEMAR EIO IN DOAJ IF 2.838 TC 17 UR https://archimer.ifremer.fr/doc/00390/50185/50808.pdf LA English DT Article CR PANDORA BO L'Atalante AB The semi-enclosed Solomon Sea in the southwestern tropical Pacific is on the pathway of a major oceanic circuit connecting the subtropics to the equator via energetic western boundary currents. Waters transiting through this area replenish the Pacific Warm Pool and ultimately feed the equatorial current system, in particular the equatorial undercurrent. In addition to dynamical transformations, water masses undergo nutrient and micronutrient enrichment when coming in contact with the coasts, impacting the productivity of the downstream equatorial region. Broadscale observing systems are not well suited for describing the fine-scale currents and water masses properties in the Solomon Sea, leaving it relatively unexplored. Two multidisciplinary oceanographic cruises were conducted in the Solomon Sea region, the first in July–August 2012 and the second in March 2014, by investigators from France and the United States. The experimental approach combined physical, chemical, geochemical and biogeochemical analyses, providing access to a wide range of space and time scales of the circulation. This collection of data allows describing the fine-scale structure of the currents and the water properties, transformations and mixing from the surface to the sill depth in the Solomon Sea and in the straits connecting it to the equator. Ocean-margin exchanges were documented through a comprehensive sampling of trace elements and isotopes as efficient tracers of natural fertilization processes. As air chemistry is largely impacted by the regional volcanic plumes, rainwater pH was also sampled. Dinitrogen fixation rates were measured and found to be among the highest in the global ocean, highlighting this region as a hot spot of nitrogen fixation. This study provides an overview of the climatic context during both cruises and the physical circulation and water masses properties. It provides a comprehensive description of all measurements made onboard, and presents preliminary results, aiming to serve as a reference for further physical, geochemical and biogeochemical studies.  PY 2017 PD JUL SO Elementa-science Of The Anthropocene SN 2325-1026 PU Univ California Press VL 5 IS 33 UT 000405210700001 BP 1 EP 27 DI 10.1525/elementa.221 ID 50185 ER EF