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Status Report on Advanced Mesospheric Temperature Mapper Activities at ALOMAR

Status Report on Advanced Mesospheric Temperature Mapper Activities at ALOMAR. Mike Taylor, P.-Dominique Pautet Utah State University. ASAC Meeting - Hamburg, March 2011. Advanced Mesospheric Temperature Mapper (AMTM) for High-Latitude Research. ALOMAR Arctic Lidar Observatory

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Status Report on Advanced Mesospheric Temperature Mapper Activities at ALOMAR

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  1. Status Report on Advanced Mesospheric Temperature Mapper Activities at ALOMAR Mike Taylor, P.-Dominique Pautet Utah State University ASAC Meeting - Hamburg, March 2011

  2. Advanced Mesospheric Temperature Mapper (AMTM) for High-Latitude Research ALOMAR Arctic Lidar Observatory for High Latitude Research 69.3° N, 16.0° E InGaAs camera Optics made at USU/SDL South Pole Spectral range: 1.5-1.65 mm • Scientific Goals • Quantify effects of gravity wave dissipation on mesopause region at high latitudes. • Investigate impact of strong auroral storms on D-region dynamics. • Coordinated measurements with lidar, radar and rocket soundings of the high latitude Mesosphere, Thermosphere and Ionosphere (MTI) system. • Novel instrument: utilizes NIR (0.9-1.65 mm) InGaAs detector coupled to a specially developed large format (120° field of view) fast (f/1) telecentric optics.

  3. AMTM Status • One camera system operated at Amundsen-Scott South Pole Station since the 2010 Austral winter • Second system installed at ALOMAR in Nov 2010 • Fully operational since Jan 2011 • InGaAs camera with high spectral sensitivity over 0.9-1.65 mm. New detector greatly simplifies AMTM automatic operation. 320 x 256 pixels detector

  4. AMTM Spectral Range High-Latitude NIR OH Spectra Poker Flat, Alaska • Near-infrared OH spectral emission lines (around 1.5-1.65 µm) in presence of aurora. • AMTM observes OH (3,1) and (4,2) spectral lines for MLT temperature measurements (indicated in red)

  5. Installation of the Advanced Mesospheric Temperature Mapper at ALOMAR (Nov 2010) Quartz dome Filter wheel F:1.0 telecentric lens IR camera (0.9-1.7μm) Temperature measurement every ~45s over 120° FOV

  6. Example of Front/Breaking EventALOMAR 2010-11

  7. Summary of ObservationsNov 2010-Mar 2011 Problem with filter wheel Full moon Full moon To date

  8. Current Status • We have just been awarded an operation grant for the AMTM by the US National Science Foundation for a period of 3 years. • The AMTM will be return to USU this summer for further calibration and to prepare for long-term operations at ALOMAR starting September 2011. • We have obtained many good nights of data already (23+ this year) and are eager to collaborate. • During this winter, we have determined that we can operate the AMTM even during moon up conditions which will significantly increase our observing hours in subsequent winter seasons. Note: The following 2 viewgraphs list dates and times for 2009-10 (OH imager only) and 2010-11 AMTM temperature imaging. Special thanks to ALOMAR for hiding the light on the tower, we noticed!

  9. List of USU GW Image 2009-10

  10. List of Best Nights of AMTM Observations - Nov 2010 to date Contact: dominiquepautet@gmail.com

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