A5043587183- Climate variability and models
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Ocean Waves and Remote Sensing
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Geophysics and Gravity Measurements
- Oceanographic and Atmospheric Processes
- Atmospheric Ozone and Climate
- Environmental and Agricultural Sciences
- Cryospheric studies and observations
- Environmental Changes in China
- Aeolian processes and effects
- Inertial Sensor and Navigation
- Arctic and Antarctic ice dynamics
- Remote Sensing and Land Use
- Air Quality and Health Impacts
- Marine and coastal ecosystems
- Solar and Space Plasma Dynamics
- Lanthanide and Transition Metal Complexes
- Inorganic Fluorides and Related Compounds
- Earthquake Detection and Analysis
- Advanced Computational Techniques and Applications
- Vehicle emissions and performance
NOAA Geophysical Fluid Dynamics Laboratory
2016-2025
National Oceanic and Atmospheric Administration
2010-2024
University of Shanghai for Science and Technology
2024
Princeton University
2007-2023
Nanjing University
1999-2020
Nanjing Audit University
2020
Nanjing University of Chinese Medicine
2020
City College
2019
City College of New York
2019
Ruijin Hospital
2019
[1] Our understanding of the global dust cycle is limited by a dearth information about sources, especially small-scale features which could account for large fraction emissions. Here we present global-scale high-resolution (0.1°) mapping sources based on Moderate Resolution Imaging Spectroradiometer (MODIS) Deep Blue estimates optical depth in conjunction with other data sets including land use. We ascribe to natural and anthropogenic (primarily agricultural) origins, calculate their...
Abstract The Geophysical Fluid Dynamics Laboratory (GFDL) has developed a coupled general circulation model (CM3) for the atmosphere, oceans, land, and sea ice. goal of CM3 is to address emerging issues in climate change, including aerosol–cloud interactions, chemistry–climate coupling between troposphere stratosphere. also designed serve as physical system component earth models decadal prediction near-term future—for example, through improved simulations tropical land precipitation...
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°)...
Abstract A global atmospheric model with roughly 50-km horizontal grid spacing is used to simulate the interannual variability of tropical cyclones using observed sea surface temperatures (SSTs) as lower boundary condition. The model’s convective parameterization based on a closure for shallow convection, much deep convection allowed occur resolved scales. Four realizations period 1981–2005 are generated. correlation yearly Atlantic hurricane counts observations greater than 0.8 when...
Abstract Using a comprehensive atmospheric GCM coupled to slab mixed layer ocean, experiments are performed study the mechanism by which displacements of intertropical convergence zone (ITCZ) forced from extratropics. The northern extratropics cooled and southern warmed an imposed cross-equatorial flux beneath layer, forcing southward shift in ITCZ. ITCZ displacement can be understood terms degree compensation between oceanic resulting response energy transport tropics. magnitude is very...
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...
Abstract Global projections of intense tropical cyclone activity are derived from the Geophysical Fluid Dynamics Laboratory (GFDL) High Resolution Atmospheric Model (HiRAM; 50-km grid) and GFDL hurricane model using a two-stage downscaling procedure. First, genesis is simulated globally HiRAM. Each storm then downscaled into model, with horizontal grid spacing near 6 km, including ocean coupling (e.g., “cold wake” generation). Simulations performed observed sea surface temperatures (SSTs)...
Abstract Twenty-first-century projections of Atlantic climate change are downscaled to explore the robustness potential changes in hurricane activity. Multimodel ensembles using phase 3 Coupled Model Intercomparison Project (CMIP3)/Special Report on Emissions Scenarios A1B (SRES A1B; late-twenty-first century) and 5 (CMIP5)/representative concentration pathway 4.5 (RCP4.5; early- scenarios examined. Ten individual CMIP3 models assess spread results among (but not CMIP5) models. Downscaling...
Abstract In Part 2 of this two‐part paper, documentation is provided key aspects a version the AM4.0/LM4.0 atmosphere/land model that will serve as base for new set climate and Earth system models (CM4 ESM4) under development at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL). The quality simulation in AMIP (Atmospheric Model Intercomparison Project) mode has been 1. provides components some sensitivities to choices formulation values parameters, highlighting convection parameterization...
Abstract In this two‐part paper, a description is provided of version the AM4.0/LM4.0 atmosphere/land model that will serve as base for new set climate and Earth system models (CM4 ESM4) under development at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL). This version, with roughly 100 km horizontal resolution 33 levels in vertical, contains an aerosol generates fields from emissions “light” chemistry mechanism designed to support but prescribed ozone. Part 1, quality simulation AMIP...
Abstract In part III of a three-part study on North American climate in phase 5 the Coupled Model Intercomparison Project (CMIP5) models, authors examine projections twenty-first-century representative concentration pathway 8.5 (RCP8.5) emission experiments. This paper summarizes and synthesizes results from several coordinated studies by authors. Aspects change that are examined include changes continental-scale temperature hydrologic cycle, extremes events, storm tracks, as well regional...
Abstract While a quantitative climate theory of tropical cyclone formation remains elusive, considerable progress has been made recently in our ability to simulate climatologies and understand the relationship between formation. Climate models are now able realistic rate global formation, although simulation Atlantic climatology challenging unless horizontal resolutions finer than 50 km employed. This article summarizes published research from idealized experiments Hurricane Working Group...
Abstract We document the development and simulation characteristics of next generation modeling system for seasonal to decadal prediction projection at Geophysical Fluid Dynamics Laboratory (GFDL). SPEAR ( S eamless System P rediction EA rth R esearch) is built from component models recently developed GFDL—the AM4 atmosphere model, MOM6 ocean code, LM4 land SIS2 sea ice model. The are specifically designed with attributes needed a model time scales, including ability run large ensembles...
Owing to the limited length of observed tropical cyclone data and effects multidecadal internal variability, it has been a challenge detect trends in activity on global scale. However, there is distinct spatial pattern frequency occurrence scale since 1980, with substantial decreases southern Indian Ocean western North Pacific increases Atlantic central Pacific. Here, using suite high-resolution dynamical model experiments, we show that very unlikely be explained entirely by underlying...
Abstract Tropical cyclone rainfall rates have been projected to increase in a warmer climate. The area coverage of tropical cyclones influences their impact on human lives, yet little is known about how will change the future. Here, using satellite data and global atmospheric model simulations, we show that controlled primarily by its environmental sea surface temperature (SST) relative mean SST (that is, SST), while rate increases with increasing absolute SST. Our result consistent previous...
Abstract The Radiative‐Convective Equilibrium Model Intercomparison Project (RCEMIP) is an intercomparison of multiple types numerical models configured in radiative‐convective equilibrium (RCE). RCE idealization the tropical atmosphere that has long been used to study basic questions climate science. Here, we employ investigate role clouds and convective activity play determining cloud feedbacks, sensitivity, state aggregation, climate. RCEMIP unique among intercomparisons its inclusion a...
Abstract We describe the baseline model configuration and simulation characteristics of Geophysical Fluid Dynamics Laboratory (GFDL)'s Atmosphere Model version 4.1 (AM4.1), which builds on developments at GFDL over 2013–2018 for coupled carbon‐chemistry‐climate as part sixth phase Coupled Intercomparison Project. In contrast with GFDL's AM4.0 development effort, focused physical aerosol interactions is used atmospheric component CM4.0, AM4.1 focuses comprehensiveness Earth system...
Abstract Cloud effects have repeatedly been pointed out as the leading source of uncertainty in projections future climate, yet clouds remain poorly understood and simulated climate models. Aquaplanets provide a simplified framework for comparing understanding cloud effects, how they are partitioned function regime, large-scale This work uses two models to demonstrate that aquaplanets can successfully predict model’s sensitivity an idealized change. For both models, aquaplanet is similar...
CGILS—the CFMIP‐GASS Intercomparison of Large Eddy Models (LESs) and single column models (SCMs)—investigates the mechanisms cloud feedback in SCMs LESs under idealized climate change perturbation. This paper describes CGILS results from 15 8 LES models. Three regimes over subtropical oceans are studied: shallow cumulus, cumulus stratocumulus, well‐mixed coastal stratus/stratocumulus. In stratocumulus stratus regimes, without activated convection generally simulated negative feedbacks, while...
Abstract A model evaluation approach is proposed in which weather and climate prediction models are analyzed along a Pacific Ocean cross section, from the stratocumulus regions off coast of California, across shallow convection dominated trade winds, to deep ITCZ—the Global Energy Water Cycle Experiment Cloud System Study/Working Group on Numerical Experimentation (GCSS/WGNE) Cross-Section Intercomparison (GPCI). The main goal GPCI evaluate help understand improve representation tropical...
[1] Monsoons, the most energetic tropical climate system, exert a great social and economic impact upon billions of people around world. The global monsoon precipitation had an increasing trend over past three decades. Whether or not this will continue in 21st century is investigated, based on simulations high-resolution atmospheric general circulation models that were forced by different future sea surface temperature (SST) warming patterns. results show area, intensity all increase...
Abstract Skillfully predicting North Atlantic hurricane activity months in advance is of potential societal significance and a useful test our understanding the factors controlling activity. In this paper, statistical–dynamical forecasting system, based on statistical model, with explicit uncertainty estimates, built from suite high-resolution global atmospheric dynamical model integrations spanning broad range climate states described. The uses two predictors: sea surface temperature (SST)...
This is the second part of a three-part paper on North American climate in phase 5 Coupled Model Intercomparison Project (CMIP5) that evaluates twentieth-century simulations intraseasonal to multidecadal variability and teleconnections with climate. Overall, multimodel ensemble does reasonably well at reproducing observed several aspects, but it less capturing teleconnections, implications for future projections examined three this paper. In terms variability, almost half models can...
Abstract The recently developed GFDL Atmospheric Model version 3 (AM3), an atmospheric general circulation model (GCM), incorporates a prognostic treatment of cloud drop number to simulate the aerosol indirect effect. Since activation depends on cloud-scale vertical velocities, which are not reproduced in present-day GCMs, additional assumptions subgrid variability required implement local parameterization into GCM. This paper describes AM3 and explores sensitivities by constructing...
Abstract Global tropical cyclone (TC) activity is simulated by the Geophysical Fluid Dynamics Laboratory (GFDL) Climate Model, version 2.5 (CM2.5), which a fully coupled global climate model with horizontal resolution of about 50 km for atmosphere and 25 ocean. The present simulation shows fairly realistic TC frequency, seasonal cycle, geographical distribution. has some notable biases in regional activity, including simulating too few TCs North Atlantic. are associated large-scale...