FN Archimer Export Format PT J TI Current systematic carbon-cycle observations and the need for implementing a policy-relevant carbon observing system BT AF CIAIS, P. DOLMAN, A. J. BOMBELLI, A. DUREN, R. PEREGON, A. RAYNER, P. J. MILLER, C. GOBRON, N. KINDERMAN, G. MARLAND, G. GRUBER, N. CHEVALLIER, F. ANDRES, R. J. BALSAMO, G. BOPP, L. BREON, F. -M. BROQUET, G. DARGAVILLE, R. BATTIN, T. J. BORGES, A. BOVENSMANN, H. BUCHWITZ, M. BUTLER, J. CANADELL, J. G. COOK, R. B. DEFRIES, R. ENGELEN, R. GURNEY, K. R. HEINZE, C. HEIMANN, M. HELD, A. HENRY, M. LAW, B. LUYSSAERT, S. MILLER, J. MORIYAMA, T. MOULIN, C. MYNENI, R. B. NUSSLI, C. OBERSTEINER, M. OJIMA, D. PAN, Y. PARIS, J. -D. PIAO, S. L. POULTER, B. PLUMMER, S. QUEGAN, S. RAYMOND, P. REICHSTEIN, M. RIVIER, L. SABINE, C. SCHIMEL, D. TARASOVA, O. VALENTINI, R. WANG, R. VAN DER WERF, G. WICKLAND, D. WILLIAMS, M. ZEHNER, C. AS 1:1;2:2;3:3;4:4;5:1;6:5;7:4;8:6;9:7;10:8;11:9,10;12:1;13:11;14:12;15:1;16:1;17:1;18:5;19:13;20:14;21:15;22:15;23:16;24:17;25:11;26:18;27:12;28:19;29:20,21,22;30:23;31:24;32:25;33:26;34:1;35:16,27;36:28;37:1;38:29;39:30;40:7;41:31;42:32;43:1;44:33;45:1;46:34;47:35;48:36;49:23;50:1;51:37;52:38;53:39;54:3;55:1;56:2;57:40;58:41;59:42; 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:;30:;31:;32:;33:;34:;35:;36:;37:;38:;39:;40:;41:;42:;43:;44:;45:;46:;47:;48:;49:;50:;51:;52:;53:;54:;55:;56:;57:;58:;59:; C1 CEA CNRS UVSQ, Lab Sci Climat & Environm, UMR8212, F-91191 Gif Sur Yvette, France. Vrije Univ Amsterdam, Amsterdam, Netherlands. CMCC, Euromediterranean Ctr Climate Change, Div Climate Change Impacts Agr Forests & Nat Ecos, I-73100 Lecce, Italy. CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA. Univ Melbourne, Sch Earth Sci, Melbourne, Vic 3010, Australia. Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Global Environm Monitoring Unit, I-21020 Ispra, Italy. IIASA, Laxenburg, Austria. Appalachian State Univ, Res Inst Environm Energy & Econ, Boone, NC 28608 USA. Swiss Fed Inst Technol, Inst Biogeochem & Pollutant Dynam, Zurich, Switzerland. Swiss Fed Inst Technol, Ctr Climate Syst Modeling, Zurich, Switzerland. Oak Ridge Natl Lab, Carbon Dioxide Informat Anal Ctr, Oak Ridge, TN 37831 USA. European Ctr Medium Range Weather Forecasts ECMWF, Reading RG2 9AX, Berks, England. Univ Vienna, Dept Limnol, A-1090 Vienna, Austria. Univ Liege, Chem Oceanog Unit, Inst Phys B5, B-4000 Cointe Ougree, Belgium. Univ Bremen, Inst Environm Phys IUP, D-28359 Bremen, Germany. NOAA, ESRL, Boulder, CO 80305 USA. CSIRO Marine & Atmospher Res, Canberra, ACT 2601, Australia. Boston Univ, Dept Geog & Environm, Boston, MA 02115 USA. Arizona State Univ, Sch Sustainabil, Sch Life Sci, Tempe, AZ 85287 USA. Univ Bergen, Inst Geophys, N-5007 Bergen, Norway. Bjerknes Ctr Climate Res, Bergen, Norway. Uni Res, Uni Bjerknes Ctr, Bergen, Norway. Max Planck Inst Biogeochem, D-07745 Jena, Germany. CSIRO, AusCover Facil, TERN, Canberra, ACT 2601, Australia. UN, Dept Forestry, Food & Agr Org, I-00153 Rome, Italy. Oregon State Univ, Dept Forest Ecosyst & Soc, Corvallis, OR 97331 USA. Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA. Japan Aerosp Explorat Agcy JAXA, Tokyo, Japan. Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA. Thales Alenia Space, Toulouse, France. Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA. US Forest Serv, USDA, Newtown Sq, PA 19073 USA. Peking Univ, Dept Ecol, Beijing 100871, Peoples R China. European Space Agcy Harwell, ESA Climate Off, Didcot OX11 0QX, Oxon, England. Univ Sheffield, Ctr Terr Carbon Dynam, Sheffield S3 7RH, S Yorkshire, England. Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA. 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C2 CNRS, FRANCE UNIV VRIJE AMSTERDAM, NETHERLANDS CMCC, ITALY CALTECH, USA UNIV MELBOURNE, AUSTRALIA JRC, ITALY IIASA, AUSTRIA UNIV APPALACHIAN STATE, USA ETH ZURICH, SWITZERLAND ETH ZURICH, SWITZERLAND OAK RIDGE NATL LAB, USA ECMWF, UK UNIV VIENNA, AUSTRIA UNIV LIEGE, BELGIUM UNIV BREMEN, GERMANY NOAA, USA CSIRO, AUSTRALIA UNIV BOSTON, USA UNIV ARIZONA STATE, USA UNIV BERGEN, NORWAY BCCR, NORWAY UNI RES, NORWAY MAX PLANCK INST BIOGEOCHEM, GERMANY CSIRO, AUSTRALIA FAO, ITALY UNIV OREGON STATE, USA UNIV COLORADO, USA JAXA, JAPAN UNIV BOSTON, USA THALES, FRANCE UNIV COLORADO STATE, USA USDA, USA UNIV PEKING, CHINA ESA, UK UNIV SHEFFIELD, UK UNIV YALE, USA NOAA, USA NEON, USA WMO, SWITZERLAND NASA, USA UNIV EDINBURGH, UK ESA, ITALY IN DOAJ IF 3.978 TC 154 UR https://archimer.ifremer.fr/doc/00293/40398/38913.pdf https://archimer.ifremer.fr/doc/00293/40398/48214.pdf LA English DT Article CR OISO 8 OISO1 OISO2 OISO3-NIVMER98 OISO4 (VT 46) OISO5 (VT 49) VT 105 / OISO 17 VT 108 / OISO-18 VT 114 / OISO-19 VT 117 / OISO-20 VT 120 / OISO-21 VT 127 / OISO-22 VT 136 / OISO-23 VT 51 / OISO 6 VT 57 / OISO 9 VT 60 / CARAUS - OISO 10 VT 62 / CARAUS - OISO 11 VT 79 / OISO 12 VT 80 / OISO 13 VT 81 / OISO 14 VT 85 / OISO 15 VT 94 / OISO 16 BO Marion Dufresne AB A globally integrated carbon observation and analysis system is needed to improve the fundamental understanding of the global carbon cycle, to improve our ability to project future changes, and to verify the effectiveness of policies aiming to reduce greenhouse gas emissions and increase carbon sequestration. Building an integrated carbon observation system requires transformational advances from the existing sparse, exploratory framework towards a dense, robust, and sustained system in all components: anthropogenic emissions, the atmosphere, the ocean, and the terrestrial biosphere. The paper is addressed to scientists, policymakers, and funding agencies who need to have a global picture of the current state of the (diverse) carbon observations. We identify the current state of carbon observations, and the needs and notional requirements for a global integrated carbon observation system that can be built in the next decade. A key conclusion is the substantial expansion of the ground-based observation networks required to reach the high spatial resolution for CO2 and CH4 fluxes, and for carbon stocks for addressing policy-relevant objectives, and attributing flux changes to underlying processes in each region. In order to establish flux and stock diagnostics over areas such as the southern oceans, tropical forests, and the Arctic, in situ observations will have to be complemented with remote-sensing measurements. Remote sensing offers the advantage of dense spatial coverage and frequent revisit. A key challenge is to bring remote-sensing measurements to a level of long-term consistency and accuracy so that they can be efficiently combined in models to reduce uncertainties, in synergy with ground-based data. Bringing tight observational constraints on fossil fuel and land use change emissions will be the biggest challenge for deployment of a policy-relevant integrated carbon observation system. This will require in situ and remotely sensed data at much higher resolution and density than currently achieved for natural fluxes, although over a small land area (cities, industrial sites, power plants), as well as the inclusion of fossil fuel CO2 proxy measurements such as radiocarbon in CO2 and carbon-fuel combustion tracers. Additionally, a policy-relevant carbon monitoring system should also provide mechanisms for reconciling regional top-down (atmosphere-based) and bottom-up (surface-based) flux estimates across the range of spatial and temporal scales relevant to mitigation policies. In addition, uncertainties for each observation data-stream should be assessed. The success of the system will rely on long-term commitments to monitoring, on improved international collaboration to fill gaps in the current observations, on sustained efforts to improve access to the different data streams and make databases interoperable, and on the calibration of each component of the system to agreed-upon international scales. PY 2014 SO Biogeosciences SN 1726-4170 PU Copernicus Gesellschaft Mbh VL 11 IS 13 UT 000339265800009 BP 3547 EP 3602 DI 10.5194/bg-11-3547-2014 ID 40398 ER EF