Global Observations of Aerosol and Ozone from SAGE III ISS A First - - PowerPoint PPT Presentation

SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Global Observations of Aerosol and Ozone from SAGE III ISS – A First Year Showcase

46th Global Monitoring Annual Conference Kevin R. Leavor 1

kevin.r.leavor@nasa.gov

Suzan Kizer 1, Travis Knepp 1 Marilee Roell 2, David Flittner 2

1Science Systems and Applications, Inc. 1 Enterprise Parkway, Suite 200 Hampton, Virginia 23666

2NASA Langley Research Center

22 May 2018

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

SAGE III ISS Overview

(HMA) Assembly Mechanical Hexapod (SA) Assembly Sensor (CMP) Package Monitoring Contamination (DMP) Package Monitoring Disturbance (ICE) Electronics Instrument Control (HEU) Electronics Unit Hexapod (CMP) Monitoring Package Contamination (IAM) Adapter Module Interface (ExPA) Payload Adapter ExPRESS

◮ Stratospheric Aerosol and Gas Experiment III (SAGE III) is an external

payload that was launched on SpaceX CRS-10 on 19 February 2017 and robotically installed on ELC-4.

◮ 67 profiles within 1000 km of Boulder, 18 within 500 km, and 9 within

500 km and 2◦ latitude as of 31 March 2018.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

NDACC/SAGE Comparisons — Ozone

See Susan Kizer, “Validation of the Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III/ISS) Science Data Ozone Product: Preliminary Results,” P-51 at the Poster Session.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

NDACC/SAGE Comparisons — Ozone

See Travis Knepp, “Validation of the Stratospheric Aerosol and Gas Experiment-III (SAGE-III) Aerosol Data Product,” P-50 at the Poster Session.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Pacific Northwest Wildfires/PyroCb

Before

80°S 60°S 40°S 20°S 0° 20°N 40°N 60°N 80°N 180° 180° 150°W 120°W 90°W 60°W 30°W 0° 30°E 60°E 90°E 120°E 150°E 180° 180°

SAGE III ISS 756nm Aerosol Extinction at 20.0 km from June 2017 to August 2017

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Aerosol Extinction (km

1) lat_binsize: 5.0 lon_binsize: 10.0

◮ Uniform stratospheric aerosol layer before summer wildfires.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Pacific Northwest Wildfires/PyroCb

Concurrent

80°S 60°S 40°S 20°S 0° 20°N 40°N 60°N 80°N 180° 180° 150°W 120°W 90°W 60°W 30°W 0° 30°E 60°E 90°E 120°E 150°E 180° 180°

SAGE III ISS 756nm Aerosol Extinction at 20.0 km from August 2017 to September 2017

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Aerosol Extinction (km

1) lat_binsize: 5.0 lon_binsize: 10.0

◮ Sparse observations of up to 10× increase of aerosol extinction in layer.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Pacific Northwest Wildfires/PyroCb

After

80°S 60°S 40°S 20°S 0° 20°N 40°N 60°N 80°N 180° 180° 150°W 120°W 90°W 60°W 30°W 0° 30°E 60°E 90°E 120°E 150°E 180° 180°

SAGE III ISS 756nm Aerosol Extinction at 20.0 km from October 2017 to December 2017

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Aerosol Extinction (km

1) lat_binsize: 5.0 lon_binsize: 10.0

◮ Aerosol dispersed through Northern latitudes after fires ceased.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Zonal Mean Aerosol Extinction

Jun 2017 Jul 2017 Aug 2017 Sep 2017 Oct 2017 Nov 2017 Dec 2017 Jan 2018 Feb 2018 Mar 2018 Apr 2018 Date 60 S 40 S 20 S 20 N 40 N 60 N Latitude

SAGE III ISS Zonal Mean Aerosol Extinction 07 June 2017 to 31 March 2018, 1021.2nm, 20.0km

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Aerosol Extinction (km

1)

◮ Clear injection of aerosols into stratosphere with latitudinal dispersion.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Aerosol Validation — OSIRIS, Co-Located

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Aerosol Extinction Coefficient (km

1)

5 10 15 20 25 30 35 40 45 Geometric Altitude (km)

SAGE 756nm to OSIRIS 750nm Aerosol Extinction Coefficient

SAGE III ISS: 2017-12-02 16:06, LL=(-37.57, -172.40) OSIRIS: 2017-12-02 18:13, LL=(-37.32, -172.98), d=59km

100 75 50 25 25 50 75 100 Aerosol Extinction Difference (% from SAGE)

Relative Difference between SAGE 756nm and OSIRIS 750nm Aerosol Extinction Coefficient

SAGE to OSIRIS: 2017-12-02 18:13, 59km

◮ Independent, nearly concurrent observations of an effectively aerosol-free

layer in the stratosphere.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Aerosol Validation — Groundtracks, OMPS O3

◮ Profiles intersect “Clean” filament to North.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Aerosol Validation — Groundtracks, OMPS O3

◮ Profiles intersect “Clean” filament to North.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Ozone Validation — OSIRIS

◮ Layer not present in the following OSIRIS profile to the Southwest.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Ozone Validation — ACE-FTS

1010 1011 1012 1013 Ozone Concentration (cm

3)

10 20 30 40 50 60 Geometric Altitude (km)

Comparison of the Average of all SAGE AerO3 and ACE-FTS O3 Coincident Profiles

Average All SAGE Coincidences (N=69) Average All ACE-FTS Coincidences (N=69) 20 15 10 5 5 10 15 20 % Relative Difference [(SAGE - ACE) / SAGE * 100]

Average of All Relative Differences Between Coincident SAGE and ACE Profiles

±0% Difference ±5% Difference ±10% Difference

◮ SAGE and ACE compare to within 5% for most of the stratosphere.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Conclusions

◮ GMD offers significant opportunities for collaborative research and

validation.

◮ NDACC ozonesondes and lidar already play a crucial role in validation and

explanatory efforts.

◮ SAGE III ISS’s first year has shown tremendous promise for the new

instrument.

◮ Both ground and satellite coincident observations will be crucial in future

data releases.

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SAGE III ISS Global Perspective Kevin Leavor SAGE Overview NDACC Contributions SAGE Wildfire Observations Satellite Aerosol/Ozone Conclusion Questions

Questions?

More info at https://sage.nasa.gov/ Data can be found at https://eosweb.larc.nasa.gov/project/sageiii-iss/sageiii-iss_table.

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