Interpretation of SOFIE PMC measurements: Cloud identification and derivation of mass density,particle shape,and particle size |
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| Authors: | Mark E Hervig Larry L Gordley Michael H Stevens James M Russell Scott M Bailey Gerd Baumgarten |
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| Institution: | 1. GATS Inc., Driggs, ID 83422, USA;2. GATS Inc., Newport News, VA 23606, USA;3. Space Science Division, Naval Research Laboratory, Washington, DC 20375, USA;4. Hampton University, Hampton, VA 23668, USA;5. Virginia Polytechnic Institute, Blacksburg, VA 24061, USA;6. Leibniz-Institute of Atmospheric Physics, Kühlungsborn, Germany;1. University of Alaska, Fairbanks, USA;2. Virginia Polytechnic Institute and State University, Blacksburg, USA;3. University of Rostock, Kuehlungsborn, Germany;4. University of Rostock, Kuehlungsborn, Germany;5. University of Colorado, Boulder, USA;1. Leibniz-Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn 18225, Germany;2. Department of Physics, University of Colorado, Boulder, CO 80309, USA;3. Graz University of Technology, 8010 Graz, Austria;4. Department of Meteorology, Stockholm University, 106 91 Stockholm, Sweden;1. Institute of Physics, Ernst-Moritz-Arndt-University of Greifswald, Felix-Hausdorff-Str. 6, Greifswald 17487, Germany;2. Science Systems and Applications Inc., 10210 Greenbelt Rd., Lanham, Maryland, MD 20706, USA;3. Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109, USA;1. Institute of Physics, Ernst-Moritz-Arndt-University of Greifswald, Felix-Hausdorff-Str. 6, 17489 Greifswald, Germany;2. GATS Inc., Driggs, ID83422, USA;3. Formerly Institute of Physics, Ernst-Moritz-Arndt-University of Greifswald, Germany;1. School of Chemistry, University of Leeds, UK;2. MISU, Stockholm University, Sweden;3. Department of Physics, Dartmouth University, USA;4. The Aerospace Corporation, Los Angeles, USA;5. Technical University of Graz, Austria;6. Andøya Rocket Range, Norway;7. GATS-Inc, Boulder, USA |
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| Abstract: | The Solar Occultation For Ice Experiment (SOFIE) was launched onboard the Aeronomy of Ice in the Mesosphere (AIM) spacecraft to measure polar mesospheric clouds (PMCs) and their environment. This work describes methods for identifying PMCs in SOFIE observations and determining mass density, particle shape, particle effective radius, and the parameters of a Gaussian size distribution. Results using SOFIE measurements from the northern summer of 2007 are compared with concurrent observations by the ALOMAR lidar in northern Norway. Ice particle properties determined from SOFIE are in good agreement with the lidar results, considering the differences in instrument characteristics. |
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