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Jasmin G. John
Geophysical Fluid Dynamics Laboratory
Global warmingGeologyClimate changeClimatologyBiogeochemical cycle
36Publications
23H-index
7,872Citations
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Publications 48
Newest
#1Friedrich A. Burger (University of Bern)H-Index: 1
#2Thomas L. Frölicher (University of Bern)H-Index: 31
Last. Jasmin G. John (GFDL: Geophysical Fluid Dynamics Laboratory)H-Index: 23
view all 3 authors...
Abstract. Ocean acidity extreme events are short-term periods of extremely high [H+] concentrations. The uptake of anthropogenic CO2 emissions by the ocean is expected to lead to more frequent and intense ocean acidity extreme events, not only due to mean ocean acidification, but also due to increases in ocean acidity variability. Here, we use daily output from ensemble simulations of a comprehensive Earth system model under a low and high CO2 emission scenario to isolate and quantify the impact...
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#1Lester Kwiatkowski (University of Paris)
#2Olivier Torres ('ENS Paris': École Normale Supérieure)
Last. Jasmin G. John (GFDL: Geophysical Fluid Dynamics Laboratory)H-Index: 23
view all 27 authors...
Abstract. Anthropogenic climate change leads to ocean warming, acidification, deoxygenation and reductions in near-surface nutrient concentrations, all of which are expected to affect marine ecosystems. Here we assess projections of these drivers of environmental change over the twenty-first century from Earth system models (ESMs) participating in the Coupled Model Intercomparison Project Phase 6 (CMIP6) that were forced under the CMIP6 Shared Socioeconomic Pathways (SSPs). Projections are compa...
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#1Fernando González Taboada (Princeton University)H-Index: 8
#2Charles A. Stock (NOAA: National Oceanic and Atmospheric Administration)H-Index: 27
Last. Hiroyuki TsujinoH-Index: 24
view all 7 authors...
Abstract Ocean surface winds determine energy, material and momentum fluxes through the air-sea interface. Accounting for wind variability in time and space is thus essential to reliably analyze and simulate ocean circulation and the dynamics of marine ecosystems. Here, we present an assessment of surface winds from three widely used atmospheric reanalysis products (NCEP/NCAR, ERA-Interim and JRA-55) and their corresponding ocean forcing data sets (CORE v2.1, DFS v5.2 and JRA55-do), which includ...
2 CitationsSource
#1Fernando González Taboada (Princeton University)H-Index: 8
#2Andrew D. Barton (Princeton University)H-Index: 10
Last. Jasmin G. John (NOAA: National Oceanic and Atmospheric Administration)H-Index: 6
view all 5 authors...
Abstract Seasonal to interannual predictions of ecosystem dynamics have the potential to improve the management of living marine resources. Prediction of oceanic net primary production (NPP), the foundation of marine food webs and the biological carbon pump, is particularly promising, with recent analysis suggesting that ecosystem feedback processes may lead to higher predictability of NPP at interannual scales than for physical variables like sea surface temperature (SST). Here, we assessed the...
2 CitationsSource
#1Charlotte Laufkötter (Princeton University)H-Index: 9
#2Alon A. Stern (Princeton University)H-Index: 1
Last. John P. Dunne (NOAA: National Oceanic and Atmospheric Administration)H-Index: 49
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2 CitationsSource
#1Jong-Yeon Park (NOAA: National Oceanic and Atmospheric Administration)H-Index: 12
#2Charles A. Stock (NOAA: National Oceanic and Atmospheric Administration)H-Index: 27
Last. Shaoqing ZhangH-Index: 20
view all 7 authors...
4 CitationsSource
#1Jaime B. Palter (URI: University of Rhode Island)H-Index: 3
#2Thomas L. Frölicher (University of Bern)H-Index: 31
Last. Jasmin G. John (NOAA: National Oceanic and Atmospheric Administration)H-Index: 6
view all 4 authors...
Abstract. The Paris Agreement has initiated a scientific debate on the role that carbon removal – or net negative emissions – might play in achieving less than 1.5 K of global mean surface warming by 2100. Here, we probe the sensitivity of a comprehensive Earth system model (GFDL-ESM2M) to three different atmospheric CO2 concentration pathways, two of which arrive at 1.5 K of warming in 2100 by very different pathways. We run five ensemble members of each of these simulations: (1) a standard Rep...
1 CitationsSource
#1Charlotte Laufkötter (Princeton University)H-Index: 9
#2Jasmin G. John (NOAA: National Oceanic and Atmospheric Administration)H-Index: 6
Last. John P. Dunne (NOAA: National Oceanic and Atmospheric Administration)H-Index: 49
view all 4 authors...
Accurate representation of the remineralization of sinking organic matter is crucial for reliable projections of the marine carbon cycle. Both water temperature and oxygen concentration are thought to influence remineralization rates, but limited data constraints have caused disagreement concerning the degree of these influences. We analyse a compilation of POC flux measurements from 19 globally distributed sites. Our results indicate that the attenuation of the flux of particulate organic matte...
13 CitationsSource
#1Stephanie A. Henson (NOCS: National Oceanography Centre, Southampton)H-Index: 29
#2Claudie Beaulieu (University of Southampton)H-Index: 18
Last. Jorge L. Sarmiento (Princeton University)H-Index: 85
view all 8 authors...
Climate change is expected to modify ecological responses in the ocean, with the potential for important effects on the ecosystem services provided to humankind. Here we address the question of how rapidly multiple drivers of marine ecosystem change develop in the future ocean. By analysing an ensemble of models we find that, within the next 15 years, the climate change-driven trends in multiple ecosystem drivers emerge from the background of natural variability in 55% of the ocean and propagate...
60 CitationsSource
#1Charles A. Stock (NOAA: National Oceanic and Atmospheric Administration)H-Index: 27
#2Jasmin G. John (NOAA: National Oceanic and Atmospheric Administration)H-Index: 6
Last. Reg Watson (UTAS: University of Tasmania)H-Index: 54
view all 10 authors...
Photosynthesis fuels marine food webs, yet differences in fish catch across globally distributed marine ecosystems far exceed differences in net primary production (NPP). We consider the hypothesis that ecosystem-level variations in pelagic and benthic energy flows from phytoplankton to fish, trophic transfer efficiencies, and fishing effort can quantitatively reconcile this contrast in an energetically consistent manner. To test this hypothesis, we enlist global fish catch data that include pre...
50 CitationsSource
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