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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

Status Report on Advanced Mesospheric Temperature Mapper Activities at ALOMAR

Mike Taylor, P.-Dominique Pautet

Utah State University

ASAC Meeting - Hamburg, March 2011

slide2

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.
amtm status
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

high latitude nir oh spectra

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)
installation of the advanced mesospheric temperature mapper at alomar nov 2010
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

summary of observations nov 2010 mar 2011
Summary of ObservationsNov 2010-Mar 2011

Problem with filter wheel

Full

moon

Full

moon

To date

current status
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!