1. Eureka Stratospheric Ozone Differential Absorption LIDAR revived
Alexey B. Tikhomirov1
Emily McCullough1
James R. Drummond1
Ghazal Farhani2, Robert J. Sica2
Thierry Leblanc3
1 Dalhousie University, Halifax, NS, Canada
2 University of Western Ontario, London, ON, Canada
3 Jet Propulsion Laboratory, Wrightwood, CA, USA
TOLNet/NDACC LWG Meeting
7-11 May 2018, Huntsville, AB

2. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
PEARL
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

3. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
DIAL specification
System
Developer: Optech Inc & YorkU, 1992
Location: 80N, 86W, Eureka, Nunavut, Canada
Range: km
Resolution: m typical
Products: stratospheric O3, tropospheric H2O,
temperature, gravity waves
Laser
Type: XeCl (IPEX – 848, LightMachinery)
Wavelengths: 308 nm 353 nm (Raman H2)
Output Energy: 152 mJ 20 mJ
Pulse Duration: <20 ns
Repletion Rate: up to 200 Hz
Beam Divergence: mrad
Receiver
Telescope Type: Newtonian
Aperture Dia.: 1 m
Focal Length: 2.5 m
FOV: to 1.0 mrad Wavelengths: 308, 353, 331.9, 385, nm
FWHM: 20, 20, 2, , 1 nm
Data Acquisition: Photon counting
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

4. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
DIAL schematics
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

5. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
DIAL observations:
2016, spring
2016, fall
2017, spring
2017, fall
2018, spring
2018, fall
dates TBD
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

6. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
2008 Results
Altitude (km)
Ozone (molecules cm-3)
K. Strawbridge etal., 2008, ECCC
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

7. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
2017 results: DIAL ozone
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

8. 2017 results: DIAL vs Ozonesondes
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

9. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
2017 results: Ozone maps
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

10. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
2017 results: Ozone maps
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

11. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
2017 results: Ozone maps
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

12. 2017 results: Column densities
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

13. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
2017 results: OEM
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

14. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
PMT issue
Symptoms: strong signal fluctuations in 308 nm channel
Reason: loose contacts in dynode voltage divider
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

15. 2018 results: DIAL observation time
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

16. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
2018 results: DIAL ozone
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

17. 2018 results: DIAL vs Ozonesondes
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

18. 2018 results: DIAL vs Sondes
Radiosonde
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

19. 2018 results: DIAL vs Ozonesondes
Radiosonde
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

20. 2018 results: DIAL vs Ozonesondes
Radiosonde
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

21. 2018 results: DIAL vs Ozonesondes
Radiosonde
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

22. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
DIAL: 2017 vs 2018
2017
2018
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA

23. TOLNet/NDACC LWG Meeting, Huntsville, AL, USA
Summary
DIAL traditional ozone retrieval results are in a good agreement with ozonesonde data except of km region
DIAL OEM ozone retrieval results are in a reasonable agreement with ozonesonde data including km region
Ozone concentrations in 2018 are lower than those in 2017
Possible Sudden Stratospheric Warming is observed in Feb 2018
Work in progress:
Reprocessing of data sets for data submission
Detailed intercomparison with other instruments (ACE FTS, Brewer, GBS, E-AERI, ozonesondes)
Application of OEM to DIAL data sets (G.Farhani)
Future work:
Water vapor, temperature and density products
PEARL research is supported by the Natural Sciences and Engineering Research Council (NSERC), Environment and Climate Change Canada (ECCC) and the Canadian Space Agency (CSA)
13-18 June 2016
May 11, 2018
TOLNet/NDACC LWG Meeting, Huntsville, AL, USA