OceanSODA-ETHZ: a global gridded data set of the surface ocean carbonate system for seasonal to decadal studies of ocean acidification
Luke Gregor,Nicolas Gruber +1 more
TLDR
Gregor et al. as mentioned in this paper presented a methodologically consistent global data set of all relevant surface ocean parameters, i.e., dissolved inorganic carbon (DIC), total alkalinity (TA), partial pressure of CO 2 ( pCO2 ), pH, and the saturation state with respect to mineral CaCO 3 ( Ω ) at a monthly resolution over the period 1985 through 2018 at a spatial resolution of 1 ∘ × 1 √.Abstract:
. Ocean acidification has profoundly altered the ocean's carbonate chemistry since preindustrial times, with potentially serious consequences for marine life. Yet, no long-term, global observation-based data set exists that allows us to study changes in ocean acidification for all carbonate system parameters over the last few decades. Here, we fill this gap and present a methodologically consistent global data set of all relevant surface ocean parameters, i.e., dissolved inorganic carbon (DIC), total alkalinity (TA), partial pressure of CO 2 ( pCO2 ), pH, and the saturation state with respect to mineral CaCO 3 ( Ω ) at a monthly resolution over the period 1985 through 2018 at a spatial resolution of 1 ∘ × 1 ∘ . This data set, named OceanSODA-ETHZ, was created by extrapolating in time and space the surface ocean observations of pCO2 (from the Surface Ocean CO 2 Atlas, SOCAT) and total alkalinity (TA; from the Global Ocean Data Analysis Project, GLODAP) using the newly developed Geospatial Random Cluster Ensemble Regression (GRaCER) method (code available at https://doi.org/10.5281/zenodo.4455354 , Gregor , 2021 ). This method is based on a two-step (cluster-regression) approach but extends it by considering an ensemble of such cluster regressions, leading to improved robustness. Surface ocean DIC, pH, and Ω were then computed from the globally mapped pCO2 and TA using the thermodynamic equations of the carbonate system. For the open ocean, the cluster-regression method estimates pCO2 and TA with global near-zero biases and root mean squared errors of 12 µ atm and 13 µ mol kg −1 , respectively. Taking into account also the measurement and representation errors, the total uncertainty increases to 14 µ atm and 21 µ mol kg −1 , respectively. We assess the fidelity of the computed parameters by comparing them to direct observations from GLODAP, finding surface ocean pH and DIC global biases of near zero, as well as root mean squared errors of 0.023 and 16 µ mol kg −1 , respectively. These uncertainties are very comparable to those expected by propagating the total uncertainty from pCO2 and TA through the thermodynamic computations, indicating a robust and conservative assessment of the uncertainties. We illustrate the potential of this new data set by analyzing the climatological mean seasonal cycles of the different parameters of the surface ocean carbonate system, highlighting their commonalities and differences. Further, this data set provides a novel constraint on the global- and basin-scale trends in ocean acidification for all parameters. Concretely, we find for the period 1990 through 2018 global mean trends of 8.6 ± 0.1 µ mol kg −1 per decade for DIC, − 0.016 ± 0.000 per decade for pH, 16.5 ± 0.1 µ atm per decade for p CO 2 , and − 0.07 ± 0.00 per decade for Ω . The OceanSODA-ETHZ data can be downloaded from https://doi.org/10.25921/m5wx-ja34 ( Gregor and Gruber , 2020 ) .read more
Citations
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Global Carbon Budget 2021
Pierre Friedlingstein,Sönke Zaehle,Corinne Le Quéré,Christian Rödenbeck,Bronte Tilbrook,Denis Pierrot,Siv K. Lauvset,Louise Chini,Jan Ivar Korsbakken,Gregor Rehder,Nicolas Bellouin,Toste Tanhua,Benjamin Poulter,Peter Landschützer,Francesco N. Tubiello,Judith Hauck,Colm Sweeney,Dorothee C. E. Bakker,Yosuke Iida,Luke Gregor,George C. Hurtt,Shin-Ichiro Nakaoka,Peter Anthoni,Frédéric Chevallier,Clemens Schwingshackl,Wiley Evans,Meike Becker,Thomas Gasser,Xu Yue,Steve B Jones,Ingrid T. van der Laan-Luijkx,Xinyu Dou,Fraser Holding,Guanghong Zhou,Jianling Chen,Nagamani K,e6gehqc681,Hiroshi Niinami,Samuel Bourne,kensetyrdhhtml2mdcom,Agbenoko Donyo Koffi,C. W. Winil,Oliver Kushemererwa,Nathalie Fenouil,Seok-Woo Jang,Karina Querne de Carvalho,carmaizvio,Silvia Ravelli,Olga D. Vorob'eva,James Kelvin,Fatih Günay,Amanda M. White,Vilemina Čenić,Eszter Dudás,CHAO LUAN,Benjamin Pfluger,Benjamin Pfluger,Stuart L. Weinstein,Abdullah ÖZÇELİK,Valery Vasil'evich Kozlov,Dong-Pyo Han,Roshan Vasant Shinde, Dr Sandeep Haribhau Wankhade, Dr Nitin Gajanan Shekapure, Mr Sachin Shrikant …,Mylene Charon,None Rahmi +63 more
TL;DR: Friedlingstein et al. as mentioned in this paper presented and synthesized datasets and methodology to quantify the five major components of the global carbon budget and their uncertainties, including fossil CO2 emissions, land use and land-use change data and bookkeeping models.
Journal ArticleDOI
Global Carbon Budget 2022
Pierre Friedlingstein,Sönke Zaehle,Corinne Le Quéré,Christian Rödenbeck,Bronte Tilbrook,Henry C. Bittig,Denis Pierrot,Louise Chini,Jan Ivar Korsbakken,Nicolas Bellouin,Toste Tanhua,Benjamin Poulter,Peter Landschützer,Francesco N. Tubiello,Judith Hauck,Are Olsen,Vivek K. Arora,Colm Sweeney,Almut Arneth,Marion Gehlen,Hiroyuki Tsujino,Daniel P. Kennedy,Yosuke Iida,Luke Gregor,Jiye Zeng,George C. Hurtt,Nicolas Mayot,Giacomo Grassi,Shin-Ichiro Nakaoka,Frédéric Chevallier,Clemens Schwingshackl,Wiley Evans,Meike Becker,Thomas Gasser,Xu Yue,Katie Pocock,Stephanie Falk,Thanos Gkritzalis,Naiqing Pan,Ingrid T. van der Laan-Luijkx,Fraser Holding,Carlos Gustavo Halaburda,Guanghong Zhou,Peter Angele,Jianling Chen,e6gehqc681,Carlos Muñoz Pérez,Hiroshi Niinami,Zongwe Binesikwe Crystal Hardy,Samuel Bourne,Ralf Wüsthofen,Paulo Brito,Christian Liguori,Juan A. Martin-Ramos,Rattan Lal,kensetyrdhhtml2mdcom,Staffan Furusten,Luca Miceli,Eric Horster,V. Miranda Chase,Field Palaeobiology Lab,Living Tree Cbd Gummies,Lifeng Qin,Yong Tang,Annie Phillips,Nathalie Fenouil,mark,Karina Querne de Carvalho,Satya Wydya Yenny,Maja Bak Herrie,Silvia Ravelli,Andreas Gerster,Denise Hottmann,Wui-Lee Chang,Andreas Lutz,Olga D. Vorob'eva,Pallavi Banerjee,Verónica Undurraga,Jovan Babić,Michele D. Wallace,Mònica Ginés-Blasi,에볼루션카지노,James Kelvin,Christos Kontzinos,Охунова Дилафруз Муминовна,Isabell Diekmann,Emily Burgoyne,Vilemina Čenić,Naomi Gikonyo,CHAO LUAN,Benjamin Pfluger,Benjamin Pfluger,A. J. Shields,Kobzos, Laszlo,Adrian Langer,Stuart L. Weinstein,Abdullah ÖZÇELİK,Yi Chen,Anzhelika Solodka,Valery Vasil'evich Kozlov,Н.С. Рыжук,Roshan Vasant Shinde, Dr Sandeep Haribhau Wankhade, Dr Nitin Gajanan Shekapure, Mr Sachin Shrikant …,Mylene Charon,David Seibt,Kobi Peled,None Rahmi +105 more
TL;DR: Friedlingstein et al. as mentioned in this paper presented and synthesized data sets and methodologies to quantify the five major components of the global carbon budget and their uncertainties, including fossil CO2 emissions, land use and land-use change data and bookkeeping models.
Journal ArticleDOI
SeaFlux: harmonization of air–sea CO 2 fluxes from surface p CO 2 data products using a standardized approach
Amanda R. Fay,Luke Gregor,Peter Landschützer,Galen A. McKinley,Nicolas Gruber,Marion Gehlen,Yosuke Iida,Goulven Gildas Laruelle,Christian Rödenbeck,Alizee Roobaert,Jiye Zeng +10 more
TL;DR: Gregor et al. as discussed by the authors presented an ensemble of global surface ocean CO 2 and air-sea carbon flux estimates using six global observation-based mapping products (CMEMS-FFNN, CSIR-ML6, JENA-MLS, JMA-MLR, MPI-SOMFFN, NIES-FNN).
Journal ArticleDOI
A seamless ensemble-based reconstruction of surface ocean <i>p</i>CO<sub>2</sub> and air–sea CO<sub>2</sub> fluxes over the global coastal and open oceans
TL;DR: In this article , an ensemble-based reconstruction of CO2 sea surface partial pressure (pCO2) maps trained with gridded data from the Surface Ocean CO2 Atlas v2020 database is presented.
Journal ArticleDOI
Hydrological application and accuracy evaluation of PERSIANN satellite-based precipitation estimates over a humid continental climate catchment
TL;DR: In this article , the authors evaluated the accuracy of satellite-based precipitation datasets in the Wełna catchment (52°30'−53°N and 16°35'−17°50'E) in Central Europe.
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