EOS CHEMEOS CHEM

EOS CHEMEOS CHEMEOS CHEMEOS CHEM

EOS CHEMEOS CHEM

EOS CHEM PlatformEOS CHEM PlatformEOS CHEM PlatformEOS CHEM Platform• Orbit: Polar: 705 km, sun-synchronous, 98o inclination,

ascending 1:45 PM +/- 15 min. equator crossing time.

• Launch date - 4th quarter, 2002, Delta 7920.

• CHEM will follow AQUA in the same orbit by 15 minutes.

• Six Year Life

• Orbit: Polar: 705 km, sun-synchronous, 98o inclination, ascending 1:45 PM +/- 15 min. equator crossing time.

• Launch date - 4th quarter, 2002, Delta 7920.

• CHEM will follow AQUA in the same orbit by 15 minutes.

• Six Year LifeMLSMLS

OMIOMI

HIRDLSHIRDLS

TESTES

EOS CHEMEOS CHEM

EOS CHEM ProjectEOS CHEM ProjectEOS CHEM ProjectEOS CHEM Project

NASA HQNASA HQ NASA GSFCNASA GSFC

Project Managers

P. Sabelhaus

M. Luce

S. Gallagher

Project Managers

P. Sabelhaus

M. Luce

S. Gallagher

Project Scientists

M. Schoeberl

A. Douglass

E. Hilsenrath

Project Scientists

M. Schoeberl

A. Douglass

E. Hilsenrath

Program Scientist

P. DeCola

Program Scientist

P. DeCola

MLSJPL

J. Waters

MLSJPL

J. Waters

HIRDLSUCB-Oxford

J. Gille, J. Barnett

HIRDLSUCB-Oxford

J. Gille, J. Barnett

TESJPL

R. Beer

TESJPL

R. Beer

OMIKNMI/NIVR

P. Levelt

OMIKNMI/NIVR

P. Levelt

Instrument PI’s Instrument PI’s

EOS CHEMEOS CHEM

EOS CHEMEOS CHEMEOS CHEMEOS CHEM

Science Questions

• Is the ozone layer changing as expected?

• Do we understand the transport of gases within the stratosphere and between the stratosphere and troposphere?

• What are the sources of tropospheric pollutants?

• What are the roles of upper tropospheric water vapor, aerosols and ozone in climate change?

Science Questions

• Is the ozone layer changing as expected?

• Do we understand the transport of gases within the stratosphere and between the stratosphere and troposphere?

• What are the sources of tropospheric pollutants?

• What are the roles of upper tropospheric water vapor, aerosols and ozone in climate change?

EOS CHEMEOS CHEM

HIRDLSHIRDLSHIRDLSHIRDLS

• High Resolution Dynamics Limb Sounder– Limb emission, IR 6.12-17.76kmvertical, 10 km

cross track, high horizontal resolution scanner (500-3,000 km wide, 6 positions)

– Stratospheric radicals: O3, NO2

– Stratospheric Reservoirs: ClONO2, HNO3,N2O5

– Tracers: CFC-11, CFC-12, CH4, H2O, N2O

– Temperature, Geopotential height

– Aerosols Extinction Coef. (4 channels)

– Upper tropospheric cirrus

• High Resolution Dynamics Limb Sounder– Limb emission, IR 6.12-17.76kmvertical, 10 km

cross track, high horizontal resolution scanner (500-3,000 km wide, 6 positions)

– Stratospheric radicals: O3, NO2

– Stratospheric Reservoirs: ClONO2, HNO3,N2O5

– Tracers: CFC-11, CFC-12, CH4, H2O, N2O

– Temperature, Geopotential height

– Aerosols Extinction Coef. (4 channels)

– Upper tropospheric cirrus

EOS CHEMEOS CHEM

MLSMLSMLSMLS

• Microwave Limb Sounder– Limb emission, resolution 1.5-3 km vertical, 3-10 km

cross track.

– Stratospheric Radicals: O3, OH, HO2, ClO, HOCl, BrO.

– Stratospheric Reservoirs: HCl, HNO3.

– Tracers: N2O, H2O, SO2,CO, HCN

– Upper tropospheric O3, H2O, Cirrus ice, HCN, and CO.

– Temperature and Geopotential height.

• Microwave Limb Sounder– Limb emission, resolution 1.5-3 km vertical, 3-10 km

cross track.

– Stratospheric Radicals: O3, OH, HO2, ClO, HOCl, BrO.

– Stratospheric Reservoirs: HCl, HNO3.

– Tracers: N2O, H2O, SO2,CO, HCN

– Upper tropospheric O3, H2O, Cirrus ice, HCN, and CO.

– Temperature and Geopotential height.

EOS CHEMEOS CHEM

TESTESTESTES• Tropospheric Emission Spectrometer– Nadir and limb Fourier transform emission spectrometer

• Limb mode, 2.3 km vertical resolution,

coverage 0-34 km

• Nadir mode, 5.3x8.5 km

– Tropospheric and stratospheric O3, H2O, CH4, CO, HNO3, NO, NO2

– Aerosols, Temperature

– Spectral Coverage 3.2 - 15.4 m

• Tropospheric Emission Spectrometer– Nadir and limb Fourier transform emission spectrometer

• Limb mode, 2.3 km vertical resolution,

coverage 0-34 km

• Nadir mode, 5.3x8.5 km

– Tropospheric and stratospheric O3, H2O, CH4, CO, HNO3, NO, NO2

– Aerosols, Temperature

– Spectral Coverage 3.2 - 15.4 m

EOS CHEMEOS CHEM

OMIOMIOMIOMI

• Ozone Monitoring Instrument– Nadir solar backscatter spectrometer, 13x24 km footprint

– Radicals: Column O3, NO2, BrO, OClO,

O3 profile ~ 5 km resolution

– Tracers: Column SO2

– Aerosols (smoke, dust and sulfates)

– Cloud top press., cloud coverage

– Surface UVB

– Tropospheric ozone

(when combined with MLS or HIRDLS)

• Ozone Monitoring Instrument– Nadir solar backscatter spectrometer, 13x24 km footprint

– Radicals: Column O3, NO2, BrO, OClO,

O3 profile ~ 5 km resolution

– Tracers: Column SO2

– Aerosols (smoke, dust and sulfates)

– Cloud top press., cloud coverage

– Surface UVB

– Tropospheric ozone

(when combined with MLS or HIRDLS)

CHEM AnimationCHEM AnimationCHEM AnimationCHEM Animation

QuickTime™ and aCinepak decompressor

are needed to see this picture.

EOS CHEMEOS CHEM

Science Strategy: Science Strategy: Is the ozone layer Is the ozone layer changing as expected?changing as expected?

Science Strategy: Science Strategy: Is the ozone layer Is the ozone layer changing as expected?changing as expected?

• Major ozone controlling gases will be measured within the same air mass.

• Key Radicals: O3, OH, HO2, ClO, BrO , NO2

• Key Reservoirs: HCl, N2O5, ClONO2, HNO3

• Key Source Gases: N2O, CH4, CFC-11, CFC-12, H2O

Color Code: MLS, HIRDLS, Both

• OMI will continue the column ozone record of TOMS and provide profiles of O3.

• TES provide additional measurements of O3, H2O, HNO3, NO2, CH4, CO.

• Major ozone controlling gases will be measured within the same air mass.

• Key Radicals: O3, OH, HO2, ClO, BrO , NO2

• Key Reservoirs: HCl, N2O5, ClONO2, HNO3

• Key Source Gases: N2O, CH4, CFC-11, CFC-12, H2O

Color Code: MLS, HIRDLS, Both

• OMI will continue the column ozone record of TOMS and provide profiles of O3.

• TES provide additional measurements of O3, H2O, HNO3, NO2, CH4, CO.

EOS CHEMEOS CHEM

Changing Stratospheric Halogens Changing Stratospheric Halogens from UARSfrom UARS

Changing Stratospheric Halogens Changing Stratospheric Halogens from UARSfrom UARS

( Anderson et al. 1999 )

EOS CHEMEOS CHEM

Science Strategy:Science Strategy: What are the What are the sources of tropospheric pollutants?sources of tropospheric pollutants?

Science Strategy:Science Strategy: What are the What are the sources of tropospheric pollutants?sources of tropospheric pollutants?

Measurement of process that control tropospheric ozone

• TES: O3, NO, NO2, CO, CH4, HNO3

• OMI: Column O3, NO2, BrO,

Aerosols

• HIRDLS: H2O, HNO3, O3 transport from

stratosphere

• MLS: UT CO, O3 and H2O

• Residual Trop. Ozone

OMI & MLS, HIRDLS

Measurement of process that control tropospheric ozone

• TES: O3, NO, NO2, CO, CH4, HNO3

• OMI: Column O3, NO2, BrO,

Aerosols

• HIRDLS: H2O, HNO3, O3 transport from

stratosphere

• MLS: UT CO, O3 and H2O

• Residual Trop. Ozone

OMI & MLS, HIRDLS

Global Nitrogen DioxideGlobal Nitrogen DioxideGlobal Nitrogen DioxideGlobal Nitrogen Dioxide

Global Ozone Monitoring Experiment (GOME) on Global Ozone Monitoring Experiment (GOME) on ERS-2. Total column NOERS-2. Total column NO22 showing effects of urban showing effects of urban areas in N. Hemisphere, biomass burning in areas in N. Hemisphere, biomass burning in Southern Hemisphere. Southern Hemisphere. Courtesy J. Burrows, Univ. of Courtesy J. Burrows, Univ. of BremenBremen

BiomassBiomassBurningBurningBiomassBiomassBurningBurning

Urban Urban Air Air

PollutionPollution

Urban Urban Air Air

PollutionPollution

EOS CHEMEOS CHEM

Science Strategy:Science Strategy: What is the role of upper What is the role of upper tropospheric water vapor, ozone and aerosols in tropospheric water vapor, ozone and aerosols in

climate change?climate change?

Science Strategy:Science Strategy: What is the role of upper What is the role of upper tropospheric water vapor, ozone and aerosols in tropospheric water vapor, ozone and aerosols in

climate change?climate change?

• MLS: cirrus ice, H2O, CO, O3

• HIRDLS: LS/UT clouds, aerosols, O3 and H2O

• TES: H2O, CO, O3

• OMI: Tropospheric aerosols

• Temperatures from MLS, HIRDLS & TES

• MLS: cirrus ice, H2O, CO, O3

• HIRDLS: LS/UT clouds, aerosols, O3 and H2O

• TES: H2O, CO, O3

• OMI: Tropospheric aerosols

• Temperatures from MLS, HIRDLS & TES

EOS CHEMEOS CHEM

CHEM

MODIS/ CERES Determines the IR Properties of Clouds

AIRS Temperature and H2O Sounding

GOES/Triana

MLS - H2O Sounding

PicassoCloudSat

ForecastCloud

Conditions

AQUA

CHEM’s Contribution to our CHEM’s Contribution to our Understanding of Cloud ProcessUnderstanding of Cloud Process

CHEM’s Contribution to our CHEM’s Contribution to our Understanding of Cloud ProcessUnderstanding of Cloud Process

EOS CHEMEOS CHEM

Science Strategy: Do we understand the transport of Science Strategy: Do we understand the transport of gases within the stratosphere, and between the gases within the stratosphere, and between the

stratosphere and troposphere?stratosphere and troposphere?

Science Strategy: Do we understand the transport of Science Strategy: Do we understand the transport of gases within the stratosphere, and between the gases within the stratosphere, and between the

stratosphere and troposphere?stratosphere and troposphere?

• High resolution measurements of upper troposphere and lower stratospheric variability from HIRDLS

– Trace gases: O3, H2O, CFC’s, N2O, CH4

– Temperature, Geopotential height

• High resolution measurements of upper troposphere and lower stratospheric variability from HIRDLS

– Trace gases: O3, H2O, CFC’s, N2O, CH4

– Temperature, Geopotential height

HIRDLS scan pattern overlaid on Reverse Domain Fill simulation of N2O at 20 km.

EOS CHEMEOS CHEM

EOS CHEM SummaryEOS CHEM SummaryEOS CHEM SummaryEOS CHEM Summary• EOS CHEM will make important measurements of the chemistry

and dynamics of the stratosphere.

– All of the important radical, reservoir and source gases in the stratosphere

– Most measurements will be within the same air mass.

– High horizontal and vertical resolution data from HIRDLS

– Continuation of the column ozone record from TOMS by OMI

• EOS CHEM will make new chemical measurements of the troposphere.

– Ozone & nitrogen oxides from TES, OMI, MLS and HIRDLS

• EOS CHEM will make important climate measurements.

– Upper troposphere ozone, water vapor, clouds and temperature from MLS, TES and HIRDLS

– Aerosols and clouds from OMI

– Measurements near coincident with AQUA

• EOS CHEM will make important measurements of the chemistry and dynamics of the stratosphere.

– All of the important radical, reservoir and source gases in the stratosphere

– Most measurements will be within the same air mass.

– High horizontal and vertical resolution data from HIRDLS

– Continuation of the column ozone record from TOMS by OMI

• EOS CHEM will make new chemical measurements of the troposphere.

– Ozone & nitrogen oxides from TES, OMI, MLS and HIRDLS

• EOS CHEM will make important climate measurements.

– Upper troposphere ozone, water vapor, clouds and temperature from MLS, TES and HIRDLS

– Aerosols and clouds from OMI

– Measurements near coincident with AQUA

http://eos-chem.gsfc.nasa.gov/http://eos-chem.gsfc.nasa.gov/

EOS CHEMEOS CHEM

EOS CHEM Working GroupsEOS CHEM Working GroupsEOS CHEM Working GroupsEOS CHEM Working Groups

Science

A. Douglass

Science

A. Douglass

Mission Operations

A. Kelly

Mission Operations

A. Kelly

Data Systems

S. Larson

Data Systems

S. Larson

Algorithm

P. Bhartia

Algorithm

P. Bhartia

Education & Outreach

E. Hilsenrath

Education & Outreach

E. Hilsenrath

Validation

L. Froidevaux

Validation

L. Froidevaux

Aerosol

S. Massie

Aerosol

S. Massie