John P. Dunne

ORCID: 0000-0002-8794-0489
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About
Contact & Profiles
Research Areas
  • Marine and coastal ecosystems
  • Atmospheric and Environmental Gas Dynamics
  • Oceanographic and Atmospheric Processes
  • Ocean Acidification Effects and Responses
  • Climate variability and models
  • Marine Biology and Ecology Research
  • Marine and fisheries research
  • Geology and Paleoclimatology Research
  • Methane Hydrates and Related Phenomena
  • Marine Bivalve and Aquaculture Studies
  • Coral and Marine Ecosystems Studies
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Arctic and Antarctic ice dynamics
  • Meteorological Phenomena and Simulations
  • Atmospheric chemistry and aerosols
  • Atmospheric Ozone and Climate
  • Calibration and Measurement Techniques
  • Isotope Analysis in Ecology
  • Organometallic Complex Synthesis and Catalysis
  • Microbial Community Ecology and Physiology
  • Advanced NMR Techniques and Applications
  • Geophysics and Gravity Measurements
  • Climate Change Policy and Economics
  • Hydrocarbon exploration and reservoir analysis

NOAA Geophysical Fluid Dynamics Laboratory
2016-2025

National Oceanic and Atmospheric Administration
2015-2024

NOAA Oceanic and Atmospheric Research
2019-2024

Princeton University
2011-2023

GenomeDesigns Lab (United States)
2022

University of York
2004-2021

NOAA Integrated Ocean Observing System
2019

NOAA National Centers for Environmental Prediction
2019

NOAA Center for Satellite Applications and Research
2019

NOAA National Environmental Satellite Data and Information Service
2019

Abstract The formulation and simulation characteristics of two new global coupled climate models developed at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL) are described. were designed to simulate atmospheric oceanic variability from the diurnal time scale through multicentury change, given our computational constraints. In particular, an important goal was use same model for both experimental seasonal interannual forecasting study this has been achieved. Two versions described, called...

10.1175/jcli3629.1 article EN Journal of Climate 2006-03-01

Abstract. Ocean ecosystems are increasingly stressed by human-induced changes of their physical, chemical and biological environment. Among these changes, warming, acidification, deoxygenation in primary productivity marine phytoplankton can be considered as four the major stressors open ocean ecosystems. Due to rising atmospheric CO2 coming decades, will amplified. Here, we use most recent simulations performed framework Coupled Model Intercomparison Project 5 assess how may evolve over...

10.5194/bg-10-6225-2013 article EN cc-by Biogeosciences 2013-10-02

Abstract The physical climate formulation and simulation characteristics of two new global coupled carbon–climate Earth System Models, ESM2M ESM2G, are described. These models demonstrate similar fidelity as the Geophysical Fluid Dynamics Laboratory’s previous Climate Model version 2.1 (CM2.1) while incorporating explicit consistent carbon dynamics. differ exclusively in ocean component; uses Modular Ocean 4p1 with vertical pressure layers ESM2G Generalized Layer a bulk mixed layer interior...

10.1175/jcli-d-11-00560.1 article EN Journal of Climate 2012-04-05

Abstract We describe the baseline coupled model configuration and simulation characteristics of GFDL's Earth System Model Version 4.1 (ESM4.1), which builds on component developments at GFDL over 2013–2018 for carbon‐chemistry‐climate contributing to sixth phase Coupled Intercomparison Project. In contrast with CM4.0 development effort that focuses ocean resolution physical climate, ESM4.1 comprehensiveness system interactions. features doubled horizontal both atmosphere (2° 1°) (1° 0.5°)...

10.1029/2019ms002015 article EN cc-by-nc-nd Journal of Advances in Modeling Earth Systems 2020-08-13

Abstract. Anthropogenic climate change is projected to lead ocean warming, acidification, deoxygenation, reductions in near-surface nutrients, and changes primary production, all of which are expected affect marine ecosystems. Here we assess projections these drivers environmental over the twenty-first century from Earth system models (ESMs) participating Coupled Model Intercomparison Project Phase 6 (CMIP6) that were forced under CMIP6 Shared Socioeconomic Pathways (SSPs). Projections...

10.5194/bg-17-3439-2020 article EN cc-by Biogeosciences 2020-07-06

Abstract The authors describe carbon system formulation and simulation characteristics of two new global coupled carbon–climate Earth System Models (ESM), ESM2M ESM2G. These models demonstrate good climate fidelity as described in part I this study while incorporating explicit consistent dynamics. differ almost exclusively the physical ocean component; uses Modular Ocean Model version 4.1 with vertical pressure layers, whereas ESM2G generalized layer dynamics a bulk mixed interior isopycnal...

10.1175/jcli-d-12-00150.1 article EN Journal of Climate 2012-10-12

We present a new synthesis of the oceanic cycles organic carbon, silicon, and calcium carbonate. Our calculations are based on series algorithms starting with satellite‐based primary production continuing conversion to sinking particle flux, penetration flux deep sea, accumulation in sediments. Regional global budgets from this highlight potential importance shelves near‐shelf regions for carbon burial. While high degree uncertainty remains, analysis suggests that shelves, less than 50 m...

10.1029/2006gb002907 article EN Global Biogeochemical Cycles 2007-10-19

Abstract The authors assess the uptake, transport, and storage of oceanic anthropogenic carbon heat over period 1861–2005 in a new set coupled carbon–climate Earth system models conducted for fifth phase Coupled Model Intercomparison Project (CMIP5), with particular focus on Southern Ocean. Simulations show that Ocean south 30°S, occupying 30% global surface ocean area, accounts 43% ± 3% (42 5 Pg C) CO2 75% 22% (23 9 × 1022 J) uptake by historical period. Northward transport out is vigorous,...

10.1175/jcli-d-14-00117.1 article EN other-oa Journal of Climate 2014-10-31

While the physical dimensions of climate change are now routinely assessed through multimodel intercomparisons, projected impacts on global ocean ecosystem generally rely individual models with a specific set assumptions. To address these single-model limitations, we present standardized ensemble projections from six marine forced two Earth system and four emission scenarios without fishing. We derive average biomass trends associated uncertainties across food web. Without fishing, mean...

10.1073/pnas.1900194116 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2019-06-11

We describe the Geophysical Fluid Dynamics Laboratory's CM4.0 physical climate model, with emphasis on those aspects that may be of particular importance to users this model and its simulations. The is built AM4.0/LM4.0 atmosphere/land OM4.0 ocean model. Topics include rationale for key choices made in formulation, stability as well drift preindustrial control simulation, comparison historical simulations observations from recent decades. Notable achievements relatively small biases seasonal...

10.1029/2019ms001829 article EN cc-by Journal of Advances in Modeling Earth Systems 2019-10-31

We present new empirical and mechanistic models for predicting the export of organic carbon out surface ocean by sinking particles. To calibrate these models, we have compiled a synthesis field observations related to ecosystem size structure, primary production particle from around globe. The model captures 61% observed variance in ratio (the pe ratio) using sea‐surface temperature chlorophyll concentrations (or productivity) as predictor variables. describe mechanisms responsible ‐ratio...

10.1029/2004gb002390 article EN Global Biogeochemical Cycles 2005-12-01

Abstract. Global climate change is predicted to alter the ocean's biological productivity. But how will we recognise impacts of on ocean productivity? The most comprehensive information available its global distribution comes from satellite colour data. Now that over ten years satellite-derived chlorophyll and productivity data have accumulated, can begin detect attribute change-driven trends in Here compare recent longer-term time series three biogeochemical models (GFDL, IPSL NCAR). We...

10.5194/bg-7-621-2010 article EN cc-by Biogeosciences 2010-02-15

Abstract The authors characterize impacts on heat in the ocean climate system from transient mesoscale eddies. Their tool is a suite of centennial-scale 1990 radiatively forced numerical simulations three GFDL coupled models comprising Climate Model, version 2.0–Ocean (CM2-O), model suite. CM2-O differ their resolution: CM2.6 uses 0.1° grid, CM2.5 an intermediate grid with 0.25° spacing, and CM2-1deg nominal 1.0° grid. Analysis budget reveals that eddies act to transport upward manner...

10.1175/jcli-d-14-00353.1 article EN Journal of Climate 2014-11-03

Abstract. This paper summarizes the formulation of ocean component to Geophysical Fluid Dynamics Laboratory's (GFDL) climate model used for 4th IPCC Assessment (AR4) global change. In particular, it reviews numerical schemes and physical parameterizations that make up an how these are pieced together use in a state-of-the-art model. Features described here include following: (1) tripolar grid resolve Arctic Ocean without polar filtering, (2) partial bottom step representation topography...

10.5194/os-1-45-2005 article EN cc-by-nc-sa Ocean science 2005-09-12

Abstract We document the configuration and emergent simulation features from Geophysical Fluid Dynamics Laboratory (GFDL) OM4.0 ocean/sea ice model. OM4 serves as component for GFDL climate Earth system models. It is also used science research contributing to Coupled Model Intercomparison Project version 6 Ocean Project. The ocean of uses Modular sea 2 Sea Ice Simulator, which have identical horizontal grid layouts (Arakawa C‐grid). follow Coordinated Ocean‐sea Reference Experiments protocol...

10.1029/2019ms001726 article EN cc-by Journal of Advances in Modeling Earth Systems 2019-08-28

Abstract Numerical models of ocean biogeochemistry are relied upon to make projections about the impact climate change on marine resources and test hypotheses regarding drivers past changes in ecosystems. In large areas ocean, iron availability regulates functioning ecosystems hence carbon cycle. Accordingly, our ability quantify impacts fluctuations cycling space time relies first achieving an appropriate representation modern cycle models. When distributions from 13 global compared against...

10.1002/2015gb005289 article EN Global Biogeochemical Cycles 2015-12-28

Abstract. Coordinated experimental design and implementation has become a cornerstone of global climate modelling. Model Intercomparison Projects (MIPs) enable systematic robust analysis results across many models, by reducing the influence ad hoc differences in model set-up or boundary conditions. As it enters its 6th phase, Coupled Project (CMIP6) grown significantly scope with documentation individual simulations delegated to science communities. The Climate–Carbon Cycle (C4MIP) takes...

10.5194/gmd-9-2853-2016 article EN cc-by Geoscientific model development 2016-08-25
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