Doing Chemistry with GEOS-5

Doing Chemistry with GEOS-5

AVAILABLEGEOS-5

RESOURCES

APPROACHES: “ON-Line” “OFF-Line”

GEOS-5 MODELS ORMODEL COMPONENTS

GEOS-5 GENERATEDDATA PRODUCTS

CHEMICAL PROCESS MODELS

GEOS-5 CHEMISTRY INTERACTIONS

ON-LINE CHEMISTRY APPLICATIONS WITH GEOS-5

RADIATION

MOIST(CONV)

TURBULENCE(DIF)

DYNAMICS(ADV)

CHEM

ATMOSPHERIC SIMULATION

COUPLED CLIMATE/CHEMISTRY

FORECASTING

COUPLED MET/CHEM ANALYSIS

COUPLED MET/CHEM REPLAY

GEOS-5 AGCM

GEOS-5 Data Assimilation Systems

CAP HISTORY

GCM

GCS

AANAAGCM

ANA

OANAOGCM

GSI

OGCMOGCMOGCMOGCMOGCMOGCMOGCMREPLAY REPLAY

EnKF

GEOS-5 DAS Structure

NCEP Phys

GEOS-5 GCM STRUCTURE

CAP

HISTORY

AGCM

GCM

OGCM

AGCM

DYNAMICS

GWDFVCORE

RADIATION

COLUMN PHYSICS

SOLAR

IR

MOISTTURB

SURFACE

LAKE

SALT WATERVEGDYNCATCH

LAND ICELAND

OGCM

MIT-OGCMMOM-4Poseidon ORAD

Ocean Dynamics

VEGDYN

Held-Suarez

BioGeoChem

OBIO

Thermo Ice

CICE

SEA ICE

P-Chem

AeroChem

STRATGMI

GOCART

G3

G4

New

Dynamical Core:Finite volumeNCAR version

Convection:RAS

Radiation:Chou

Prog Clouds:BacmeisterNew Development

Boundary Layer:Lock 2000

Gravity Waves:NCAR

ESMF /MAPL

GEOS-5

GEOS-4 GEOS-3 FractionO

pt. Dep.

Cloud Optical Depth in GEOS-5 GEOS-4: high clouds have very low optical depth - hence too little OH production by photolysis (plots from J. Logan compare GEOS-4 to GEOS-3 in July 2003 and 2001)

GEOS-5: July 2006 cloud properties - •Cloud fractions different! •Optical depths larger than GEOS-4

AGCM

AEROCHEM

DYNAMICS

GWDFVCORE

CAPHISTORY

COLUMN PROCESSES

RADIATIONSOLAR

IRMOIST

TURBSURFACE

LAKE

SALTWATERVEGDYNCATCHICELAND

OGCM

GOCART GMIGSFC

StratChem

PchemP & L

DUBC

SSSU

OC

EMISS

CHEM

DEPOs

GEOS-5 ON-Line Chemistry

GEOS-Chem ?

GOCART GSFC Strat P & L GMI ComboDust

Sea Salt

Sulfates

Carbonaceous

CO & CO2

Ox, O3

CH4

N2O

CFC11, CFC12, CFC22

etc.

Ox, O3

CH4

N2O

CFCs

Aerosols (Michigan)

etc

Ox, O3

CH4

N2O

CFCs

Data Aerosols

Age of Air

AEROCHEM is a container/manager for integrated packages with subcomponents.

At runtime one selects one or more packages to run and in case ofambiguity,which package provides a specific input to radiation.

Each package exposes its constituents to the GCM and requestsspecific “services” for each.

AEROCHEM

High-resolution chemistry-climate model simulation with GEOS-5

Composition-circulation simulated in a high resolution (2/3° longitude 1/2° latitude) simulation of GEOS-5 with on-line stratospheric chemistry

PV, ozone and chlorine nitrate fields at 70hPa on April 1, near the end of a cold simulated Arctic winter

Coherent filaments are peeled from the edge and interior of the polar vortex

Off-Line CTMs and GEOS-5

GEOS-5 ANALYSES

(MERRA)EXTERNAL MET DATA

GEOS-5 SIMULATIONS

(CLIMATE RUNS)

MAP CTMF EXTERNAL CTMOTHER CTMWITH G5 CORES

CTMF

CONSTITUENTS

CAP HISTORY

TPCORES

GOCART GSFC StratChem

PchemP & L

DUBC

SSSU

OC

CONVECTION

ADVECTION

DIFFUSION

MAP CTMF

EMISS

CHEM

DEPOs

CONVECTIONCONVECTION

ADVECTIONADVECTION

CHEMCHEM

EMISSEMISS

DEPOsDEPOs

GEOSChem ?

MET INGEST

MERRAhttp://gmao.gsfc.nasa.gov/merra/

Michael Bosilovich, Siegfried Schubert & Gi-Kong Kim

MERRA Objectives

Half-Degree by 72L to .01 mb1979-presentParallel AMIP runGSI Analysis with IAU

EMPHASIS ON WATER CYCLE Global Precipitation, Evaporation, Land Hydrology, Cloud parameters and TPW

GLOBAL HEAT AND WATER BUDGETS FOR ALL PROCESSES

DIURNAL CYCLE FROM HOURLY 2-D FIELDS

GEOS-5

The GEOS-5 ADAS Validation: Precipitation

GEOS-5

The GEOS-5 ADAS Validation: Precipitation

IAU Implementation

03Z 06Z 09Z 12Z 18Z15Z 21Z 00Z 03Z

Background (Predictor) States

Analysis Cycle

Initial States for Corrector

Analysis Tendencies for Corrector

Corrector Segment

Assimilated Analyses

MERRA Products

6-hourly instantaneous analysis (uvtqo) 1/2 (eta and pressure)

Standard Histories3-D, Pressure levels, 3-hourly, 1.25x1.25x42L2-D, Hourly, Native (1/2 degree) resolution

Chemistry Forcing Reduces Resolution Histories:

1x1.25 Fvgrid3-hourlyNative (72 L) VerticalA-Grid winds

TPCORE forcings:Native (Horz and Vert)C-gridFV transport parametersRAS Convection parametersEdge Diffusivities

Summary

Our objective for chemistry studies with GEOS-5 and the MAP CTM Framework are:

• To support applications in weather, climate, and data assimilation modes, with various of chemistry/aerosol packages.

• To support both “online” or “offline” studies within a single code base, allowing for direct comparison and validation of offline methodology.

• To provide forcing from GMAO simulations and analyses tailored to CTMF applications.

• To support external “Met” forcing and Chem components in CTMF