HYCOM 2.1 Development at RSMAS George Halliwell HYCOM Development –Included several vertical mixing algorithms –Refine the hybrid vertical coordinate adjustment.

Slides:

Advertisements

Similar presentations

Computation of High-Resolution Global Ocean Model using Earth Simulator By Norikazu Nakashiki (CRIEPI) Yoshikatsu Yoshida (CRIEPI) Takaki Tsubono (CRIEPI)

Advertisements

HYCOM and the need for overflow/entrainment parameterizations.

1 Evaluation of two global HYCOM 1/12º hindcasts in the Mediterranean Sea Cedric Sommen 1 In collaboration with Alexandra Bozec 2 and Eric Chassignet 2.

Hurricanes and climate ATOC 4720 class22. Hurricanes Hurricanes intense rotational storm that develop in regions of very warm SST (typhoons in western.

Modeling the M 2 and O 1 Barotropic and Baroclinic Tides in the Gulf of Mexico Using the HYbrid Coordinate Ocean Model (HYCOM) Flavien Gouillon 1 ; B.

Evaluation and Improvement of Ocean Model Parameterizations for NCEP Operations L. K. Shay, G. Halliwell, J.Brewster, C. Lozano, W. Teague MPO, RSMAS,

Evaluation of the Simulated Ocean Response to Hurricane Ivan in Comparison to High-Quality Ocean Observations George Halliwell, Nick Shay Rosenstiel School.

Submesoscale secondary instability in an upwelling system: mechanisms and implications for upper ocean dynamics X. Capet, J. McWilliams, J. Molemaker,

Wave communication of high latitude forcing perturbations over the North Atlantic Vassil Roussenov, Ric Williams & Chris Hughes How changes in the high.

Potential temperature ( o C, Levitus 1994) Surface Global zonal mean.

Define Current decreases exponentially with depth. At the same time, its direction changes clockwise with depth (The Ekman spiral). we have,. and At the.

Global Real Time Ocean Forecast System (RTOFS- Global) Team: Avichal Mehra, Ilya Rivin, Bhavani Balasubramaniam, Todd Spindler, Zulema Garaffo, Hendrik.

Henry R. Winterbottom, Eric P. Chassignet, and Carol Anne Clayson A Coupled Atmosphere-Ocean Model System for Tropical Cyclone Studies Motivation Methodology.

Simulation of Atlantic warm pool in the Hybrid- Coordinate Ocean Model (HYCOM) SANG-KI LEE 1,2 CHUNZAI WANG 2, CARLOS LOZANO 3, and DAN IREDELL 3 1 UMIAMI/CIMAS,

Japan/East Sea Hybrid Coordinate Ocean Model (HYCOM) Patrick J. Hogan and Harley E. Hurlburt Naval Research Laboratory, Code 7323, Stennis Space Center,

EVALUATION OF UPPER OCEAN MIXING PARAMETERIZATIONS S. Daniel Jacob 1, Lynn K. Shay 2 and George R. Halliwell 2 1 GEST, UMBC/ NASA GSFC, Greenbelt, MD

The meridional coherence of the North Atlantic meridional overturning circulation Rory Bingham Proudman Oceanographic Laboratory Coauthors: Chris Hughes,

Basin-scale Ocean Prediction with the Hybrid Coordinate Ocean Model Eric P. Chassignet, Patrick J. Hogan, Harley E. Hurlburt, E. Joseph Metzger, and Alan.

Simulation of the Bohai Sea Circulation and Thermohaline Structure Using a Coupled Hydrodynamical-Ecological Model by LCDR Rodrigo Obino Brazilian Navy.

Sergio deRada John Kindle (Ret) Igor Shulman Stephanie Anderson Ocean Sciences Meeting Orlando, FL March 5, 2008.

Oceanic and Atmospheric Modeling of the Big Bend Region Steven L. Morey, Dmitry S. Dukhovksoy, Donald Van Dyke, and Eric P. Chassignet Center for Ocean.

1.Introduction 2.Description of model 3.Experimental design 4.Ocean ciruculation on an aquaplanet represented in the model depth latitude depth latitude.

Initial Progress on HYCOM Nested West Florida Shelf Simulations George Halliwell MPO/RSMAS, University of Miami.

NOCS: NEMO activities in 2006 Preliminary tests of a full “LOBSTER” biogechemical model within the ORCA1 configuration. (6 extra passive tracers). Developed.

MERSEA overall objective is to facilitate the visibility, understanding and exchange of the ocean modelling data, output products for users and evaluate.

Downscaling Future Climate Scenarios for the North Sea 2006 ROMS/TOMS Workshop, Alcalá de Henares, 6-8 November Bjørn Ådlandsvik Institute of Marine Research.

EFFECTS OF OCEAN MIXING ON HURRICANE HEAT CONTENT ESTIMATES: A NUMERICAL STUDY S. DANIEL JACOB and LYNN K. SHAY Meteorology and Physical Oceanography Rosenstiel.

Validation Analysis of the 0.72˚ HYCOM/CICE run Dmitry Dukhovskoy, Pam Posey, Joe Metzger, Alan Wallcraft, and Eric Chassignet.

Modeling the upper ocean response to Hurricane Igor Zhimin Ma 1, Guoqi Han 2, Brad deYoung 1 1 Memorial University 2 Fisheries and Oceans Canada.

Sensitivity Studies Using Nested HYCOM Models 2004 Layered Ocean Model Users’ Workshop February 9-11, 2004 RSMAS, Miami, FL Patrick Hogan Luis Zamudio.

Impact of Power Extraction on the Florida Current/Gulf Stream System: New Results Alexandra Bozec 1, Eric Chassignet 1, Howard P. Hanson 2 1 Center for.

First results from the isopycnic ocean carbon cycle model HAMOCC & MICOM/BCM Karen Assmann, Christoph Heinze, Mats Bentsen, Helge Drange Bjerknes Centre.

Synthetic Float Analysis in HYCOM Synthetic floats were released in an ocean model to study how the upper-limb (northward return flow) of the Atlantic.

Monitoring Heat Transport Changes using Expendable Bathythermographs Molly Baringer and Silvia Garzoli NOAA, AOML What are time/space scales of climate.

North Atlantic dynamical response to high latitude perturbations in buoyancy forcing Vassil Roussenov, Ric Williams & Chris Hughes How changes in the high.

Mixed-layer processes A short course on: Modeling IO processes and phenomena INCOIS Hyderabad, India November 16−27, 2015 Thanks to P. N. Vinaychandran.

 one-way nested Western Atlantic-Gulf of Mexico-Caribbean Sea regional domain (with data assimilation of SSH and SST prior to hurricane simulations) 

A Synthetic Drifter Analysis of Upper-Limb Meridional Overturning Circulation Interior Ocean Pathways in the Tropical/Subtropical Atlantic George Halliwell,

Evaluation of the Real-Time Ocean Forecast System in Florida Atlantic Coastal Waters June 3 to 8, 2007 Matthew D. Grossi Department of Marine & Environmental.

Contrasting Summer Monsoon Cold Pools South of Indian Peninsula Presented at ROMS/TOMS Asia-Pacific Workshop-2009, Sydney Institute of Marine Sciences,

Group Meeting 2010/03/16 R Kirsten Feng. Coupled Decadal Variability in the North Pacific: An Observationally Constrained Idealized Model* BO.

A Hybrid Coordinate Ocean Model (HYCOM) For Data-Assimilative Ocean Modeling A Hybrid Coordinate Ocean Model (HYCOM) For Data-Assimilative Ocean Modeling.

Evaluation of two global HYCOM 1/12º hindcasts in the Mediterranean Sea Cedric Sommen 1, Alexandra Bozec 2, Eric P. Chassignet 2 Experiments Transport.

Numerical Investigation of Air- Sea Interactions During Winter Extratropical Storms Presented by Jill Nelson M.S. Marine Science Candidate Graduate Research.

Ocean Climate Simulations with Uncoupled HYCOM and Fully Coupled CCSM3/HYCOM Jianjun Yin and Eric Chassignet Center for Ocean-Atmospheric Prediction Studies.

By S.-K. Lee (CIMAS/UM), D. Enfield (AOML/NOAA), C. Wang (AOML/NOAA), and G. Halliwell Jr. (RSMAS/UM) Objectives: (1)To assess the appropriateness of commonly.

Evaluation of HYCOM Upper Ocean Mixing Parameterizations S. Daniel Jacob 1, Lynn K. Shay 2, George R. Halliwell 2 and David Le Vine 3 1 GEST, UMBC/ NASA.

Multidecadal simulations of the Indian monsoon in SPEEDY- AGCM and in a coupled model Annalisa Bracco, Fred Kucharski and Franco Molteni The Abdus Salam.

Assessment of a wetting and drying scheme in the HYbrid Coordinate Ocean Model (HYCOM) Sébastien DENNEULIN Eric Chassignet, Flavien Gouillon, Alexandra.

Multi-decadal simulation of Atlantic Ocean climate variability driven by realistic high-frequency atmospheric reanalysis Z. Garraffo, G.Halliwell, L. Smith,

Ocean Data Assimilation for SI Prediction at NCEP David Behringer, NCEP/EMC Diane Stokes, NCEP/EMC Sudhir Nadiga, NCEP/EMC Wanqiu Wang, NCEP/EMC US GODAE.

Nansen Environmental and Remote Sensing Center Modifications of the MICOM version used in the Bergen Climate Model Mats Bentsen and Helge Drange Nansen.

Visualization of High Resolution Ocean Model Fields Peter Braccio (MBARI/NPS) Julie McClean (NPS) Joint NPS/NAVOCEANO Scientific Visualization Workshop.

Evaluation of Upper Ocean Mixing Parameterizations S. Daniel Jacob 1, Lynn K. Shay 2 and George R. Halliwell 2 1 GEST, UMBC/ NASA GSFC, Greenbelt, MD

Forces and accelerations in a fluid: (a) acceleration, (b) advection, (c) pressure gradient force, (d) gravity, and (e) acceleration associated with viscosity.

Figure 3: horizontal sections of the salinity at 1000 m for each experiment. a) climatology, b).32 degree with Price-Yang,c) 2 degree with buffer zone.

Tropical Atlantic SST in coupled models; sensitivity to vertical mixing Wilco Hazeleger Rein Haarsma KNMI Oceanographic Research The Netherlands.

The effect of tides on the hydrophysical fields in the NEMO-shelf Arctic Ocean model. Maria Luneva National Oceanography Centre, Liverpool 2011 AOMIP meeting.

Figure 5. Sverdrup balance: close up of Benguela region in JJA. a,c) Term i) of (1). b, d) Term ii) of (1). Top panels: CCSM4-1º, bottom panels: CCSM4-0.5º.

Downscaling the Effects of Global Change on the Coastal Transition Zone of Western Iberian Peninsula Jesús Dubert, Ana Pires, Rita Nolasco, Alfredo Rocha.

RTOFS Monitoring and Evaluation Metrics Avichal Mehra MMAB/EMC/NCEP/NWS.

Coupling ROMS and CSIM in the Okhotsk Sea Rebecca Zanzig University of Washington November 7, 2006.

Z. Garraffo, G.Halliwell, L. Smith, G. Peng, E. Chassignet

The Marine System Modelling group (MSM) at the UK's National Oceanography Centre (NOC) maintains and runs various NEMO configurations. Global, ocean-only,

Coupled atmosphere-ocean simulation on hurricane forecast

Adaptation of the vertical resolution in the mixed layer for HYCOM

COAPS, Florida State University

Ensemble simulations and the ocean’s mesoscale

Heat Transport by the Atmosphere and ocean

Supervisor: Eric Chassignet

Presentation transcript:

HYCOM 2.1 Development at RSMAS George Halliwell HYCOM Development –Included several vertical mixing algorithms –Refine the hybrid vertical coordinate adjustment algorithm –Miscellaneous algorithms Ongoing HYCOM Evaluation and Analysis Efforts –Evaluate the vertical mixing algorithms –Evaluate other algorithms –Provided 1.4-degree Atlantic model to C. Thacker for data assimilation studies –Climate studies Upper limb of Atlantic meridional overturning circulation Modes of Atlantic Ocean response to NAO atmospheric forcing Planned HYCOM Evaluation and Analysis Efforts –West Florida shelf (with R. Weisberg and RSMAS HYCOM group) –Hurricane response (with D. Jacob and N. Shay) –Coupled hurricane model (with S. Chen) –Florida Current (with C. Mooers and RSMAS HYCOM group)

Vertical Mixing Choices in HYCOM 2.1 Vertical Mixing Models (surface to bottom) –KPP –Mellor-Yamada level 2.5 turbulence closure Mixed Layer Models –Kraus-Turner A (hybrid) –Kraus-Turner B (hybrid, simplified, from Bleck global HYCOM) –Kraus-Turner C (MICOM mode, from MICOM 2.8) –Price-Weller-Pinkel dynamical instability model Interior Diapycnal Mixing Models (for use with the mixed layer models) –Explicit algorithm A (hybrid, MICOM-like) –Explicit algorithm B (MICOM mode, from MICOM 2.8) –Implicit algorithm (hybrid, KPP without surface b.l. model)

HYCOM Atlantic Ocean Simulations Domain –Atlantic Ocean, 20S to 62N –Resolution: 2.0 degrees horizontal, 22 layers vertical Forcing / Boundary Conditions / Initial Conditions –Surface forcing by COADS climatology –Relaxation to Levitus climatology at N/S boundaries –Relaxation to Levitus surface salinity –Initialized from p(latitude) Model Runs –30-year spinup –One-year analysis run –Winter (mid-February) and summer (mid-August) fields saved Eight Cases Summarized Here to Illustrate Different Vertical Mixing Choices

Latitude Winter and summer cross-sections along 29W. The central sigma-0 value in the alternating white and gray bands of the shading bar are the isopycnic reference values. Some of the layer numbers are shown inside the shading bar. The thick line is the diagnosed mixed layer base.

Winter mixed layer thickness (m). Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode)

Winter barotropic stream- function (Sv) Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode)

Ekman spirals produced by the KPP and MY mixing models in the Westerlies (top) and the trade Winds (bottom). Produced from 32-layer experiments

Winter SST (C) for the KPP experiment (top left). Otherwise, differences between the other seven experiments and the KPP experiment) Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode)

Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode) Summer SST (C) for the KPP experiment (top left). Otherwise, differences between the other seven experiments and the KPP experiment)

Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode) Winter SSH (m) for the KPP experiment (top left). Otherwise, differences between the other seven experiments and the KPP experiment)

Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode) Winter sigma-0 for the KPP experiment (top left) along A 29W cross-section. Otherwise, differences between the other seven experiments and the KPP experiment)

Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode) Winter SST differences (C) between the eight experiments and Levitus climatology.

Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode) Summer SST differences (C) between the eight experiments and Levitus climatology.

Experiments: KPP (k-profile parameterization) MY (Mellor-Yamada 2.5) PWP (Price-Weller-Pinkel) KTAI (K-T A m.l., implicit diap.mix.) KTAIP (same with penetrating sw. rad.) KTAE (K-T A m.l., explicit diap. mix.) KTB (K-T B m.l., implicit diap. mix.) MIC (K-T C m.l., MICOM mode) Winter sigma-0 differences along 29W between the eight experiments and Levitus climatology.

Figure: Preliminary simulation for the Gilbert case using HYCOM including three non-slab Schemes: (a) mixed layer depth, (b) mixed layer temperature, (c) zonal current, (d) meridional current, and e) surface fluxes to the atmosphere. The differences in the directly forced region are much larger between these schemes compared to those used in MICOM simulations. A surface flux difference of up to 500 Wm 2 is seen at the point of closest approach of storm center. Red, Green, Blue and Cyan lines represent quantities simulated using KT, KPP, MY and PWP schemes respectively.

Hurricanes and analysis regions for HYCOM simulations