A5030833545- Climate variability and models
- Meteorological Phenomena and Simulations
- Distributed and Parallel Computing Systems
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Atmospheric and Environmental Gas Dynamics
- Hydrological Forecasting Using AI
- Advanced Data Storage Technologies
- Scientific Computing and Data Management
- Parallel Computing and Optimization Techniques
- Embedded Systems Design Techniques
- Atmospheric chemistry and aerosols
- Ocean Acidification Effects and Responses
- Advanced SAR Imaging Techniques
- Computational Physics and Python Applications
- Precipitation Measurement and Analysis
- Interconnection Networks and Systems
- Climate Change Policy and Economics
- Physiological and biochemical adaptations
- Radar Systems and Signal Processing
- Advanced Research in Science and Engineering
- Carbon Dioxide Capture Technologies
NOAA Geophysical Fluid Dynamics Laboratory
2011-2023
National Oceanic and Atmospheric Administration
2016-2020
Princeton University
2017
IBM (United States)
2002
Abstract The authors present results for simulated climate and change from a newly developed high-resolution global model [Geophysical Fluid Dynamics Laboratory Climate Model version 2.5 (GFDL CM2.5)]. GFDL CM2.5 has an atmospheric resolution of approximately 50 km in the horizontal, with 32 vertical levels. horizontal ocean ranges 28 tropics to 8 at high latitudes, This allows explicit simulation some mesoscale eddies ocean, particularly lower latitudes. Analyses are presented based on...
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...
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 We present the System for High‐resolution prediction on Earth‐to‐Local Domains (SHiELD), an atmosphere model developed by Geophysical Fluid Dynamics Laboratory (GFDL) coupling nonhydrostatic FV3 Dynamical Core to a physics suite originally taken from Global Forecast System. SHiELD is designed demonstrate new capabilities within its components, explore applications, and answer scientific questions through these functionalities. A variety of configurations are presented, including...
Abstract. A climate model represents a multitude of processes on variety timescales and space scales: canonical example multi-physics multi-scale modeling. The underlying system is physically characterized by sensitive dependence initial conditions, natural stochastic variability, so very long integrations are needed to extract signals change. Algorithms generally possess weak scaling can be I/O and/or memory-bound. Such weak-scaling, I/O, memory-bound codes present particular challenges...
We present a new model that couples GFDL’s FV3-based weather SHiELD, ocean MOM6, and NCEP’s wave WAVEWATCH III. This is specifically designed for high-resolution simulations of air-sea interactions during extreme coastal events. It aims to address the critical need accurate representation fine-scale processes in interactions, which are not resolved current-generation global  models. By combining III, we seek capture complex dynamics atmosphere, ocean, at...
Abstract. We present a new high-resolution coupled atmosphere-ocean model, SHiELD-MOM6, which integrates GFDL's advanced atmospheric System for High-resolution modeling Earth-to-Local Domain (SHiELD), the Modular Ocean Model version 6 (MOM6), and Sea Ice Simulator (SIS2). The model leverages Flexible Modeling (FMS) coupler its innovative exchange grid to enable robust scalable two-way interaction between atmosphere ocean. component is built on non-hydrostatic Finite-Volume Cubed-Sphere...
Abstract. Climate models represent a large variety of processes on timescales and space scales, canonical example multi-physics multi-scale modeling. Current hardware trends, such as Graphical Processing Units (GPUs) Many Integrated Core (MIC) chips, are based on, at best, marginal increases in clock speed, coupled with vast concurrency, particularly the fine grain. Multi-physics codes face particular challenges achieving fine-grained different physics dynamics components have computational...
Abstract. Two-way multiple same-level and telescoping grid nesting capabilities are implemented in the Geophysical Fluid Dynamics Laboratory (GFDL)'s Finite-Volume Cubed-Sphere Dynamical Core (FV3). Simulations performed within GFDL's System for High-resolution modeling Earth-to-Local Domains (SHiELD) using global regional nest configurations. Results show that multi-level nests were able to capture various weather events greater details by resolving smaller-scale flow structures. updates do...
We present the System for High-resolution prediction on Earth-to-Local Domains (SHiELD), an atmosphere model coupling nonhydrostatic FV3 Dynamical Core to a physics suite originally taken from Global Forecast System. SHiELD is designed demonstrate new capabilities within its components, explore applications, and answer scientific questions through these functionalities. A variety of configurations are presented, including short-to-medium-range subseasonal-to-seasonal (S2S) prediction,...
Abstract. Climate models represent a large variety of processes on time and space scales, canonical example multi-physics multi-scale modeling. Current hardware trends, such as GPUs MICs, are based marginal increases in clock speed, coupled with vast concurrency, particularly at the fine grain. Multi-physics codes face particular challenges achieving fine-grained different physics dynamics components have computational profiles, universal solutions hard to come by. We propose here one...
Abstract. A climate model represents a multitude of processes on variety time and space scales; canonical example multi-physics multi-scale modeling. The underlying system is physically characterized by sensitive dependence initial conditions, natural stochastic variability, so very long integrations are needed to extract signals change. Algorithms generally possess weak scaling can be I/O and/or memory bound. Such weak-scaling, memory-bound codes present particular challenges computational...
Abstract. Two way multiple same-level and telescoping grid nesting capabilities are implemented in the Geophysical Fluid Dynamics Laboratory (GFDL)’s Finite-Volume Cubed Sphere Dynamical core (FV3). Simulations performed within GFDL’s System for High-resolution modeling Earth-to-Local Domains (SHiELD) using global regional nests configuration. Results show that same level multi-level were able capture various weather events greater details by resolving smaller scale flow structures. Two-way...
We present the System for High-resolution prediction on Earth-to-Local Domains (SHiELD), an atmosphere model coupling nonhydrostatic FV3 Dynamical Core to a physics suite originally taken from Global Forecast System. SHiELD is designed demonstrate new capabilities within its components, explore applications, and answer scientific questions through these functionalities. A variety of configurations are presented, including short-to-medium-range subseasonal-to-seasonal (S2S) prediction,...
A major challenge to community code development and management is the testing validation of public contributions. The community-developed GFDL Finite-Volume Cubed Sphere Dynamical Core (FV3) no exception: automated contributions made FV3 repository paramount for ensuring integrity many earth-system models forecasting applications using as a dynamical core. build test system core was developed internal on NOAA Research Development High Performance Computing Systems (RDHPCS). We have designed...
The high-performance, low-power 16 K-byte 4-way set associative integrated cache memory currently being used in the IBM 486 SLC/486 SLC2 microprocessor chips is described. combines functions of 20 K bit TAG memory, 1 STATE, 2 LRU (least recently used), and 144 DATA memory. This key to reducing interface complexity optimizing size, power, performance. unit has a typical clock access 6.9 ns HIT 5.0 12 cycle time. It worst-case power 400 mW at 50% utilization. was designed built 0.8 /spl mu/m...
Earth and Space Science Open Archive This work has been accepted for publication in Journal of Advances Modeling Systems (JAMES). Version RecordESSOAr is a venue early communication or feedback before peer review. Data may be preliminary. Learn more about preprints. preprintOpen AccessYou are viewing an older version [v1]Go to new versionGFDL SHiELD: A Unified System Weather-to-Seasonal PredictionAuthors Lucas Harris iD Linjiong Zhou Shian-Jiann Lin Jan-Huey Chen Xi Kun Gao Matthew Morin...