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@INPROCEEDINGS{Gemba:1030638,
      author       = {Gemba, Gregor and Kaufmann, Martin and Ungermann, Jörn and
                      Miebach, Marco and Gauss, Martin and Augspurger, Tobias and
                      Neubert, Tom and Fröhlich, Denis and Preusse, Peter and
                      Riese, Martin},
      title        = {{INSPIRE} {S}at-3 {A}tmo{LITE} - measuring gravity waves
                      from a{M}icrosat},
      reportid     = {FZJ-2024-05371},
      year         = {2024},
      abstract     = {Atmospheric dynamics are composed largely of atmospheric
                      circulations of different scales. Onesuch circulation is the
                      mesospheric pole-to-pole circulation, which gives rise to
                      the intriguing phe-nomenon whereby the polar summer
                      mesosphere, despite receiving 24 hours of sunlight, is
                      thecoldest region in the atmosphere. These circulations are
                      governed by atmospheric waves, whichagain come in various
                      shapes and sizes. The pole-to-pole circulation of the upper
                      mesosphere inparticular is driven by so-called gravity
                      waves. Gravity waves are buoyancy waves where gravityserves
                      as the restoring force. These waves carry energy and
                      momentum from the lower atmosphereinto the mesosphere and
                      lower thermosphere. As gravity waves travel vertically with
                      wavelengths onthe scale of kilometers, they can be well
                      measured by a satellite with a limb looking configuration.In
                      recognition of the significance of accurately measuring
                      these atmospheric dynamics, researchershave developed
                      advanced instrumentation to capture the intricate details of
                      these phenomena. Thisbrings us to a significant joint
                      initiative aimed at enhancing our understanding of the upper
                      meso-sphere. A collaborative effort between the J ̈ulich
                      Research Center and the University of Wuppertalin Germany
                      led to the development of such a limb sounding instrument.
                      The instrument’s primaryobjective is to provide vertical
                      temperature profiles with a fine vertical sampling of 1.5
                      km. Theseprecise measurements enable the effective capture
                      and analysis of small to medium-scale gravitywaves in
                      heights of about 90-140km, which is crucial for
                      understanding the energy and momentumtransfer in the
                      atmosphere. The measurement principle is based on spectral
                      information whichis captured by an imaging Spatial
                      Heterodyne Interferometer. This is essentially a Michelson
                      in-terferometer with the two mirrors exchanged with blazed
                      gratings in Littrow configuration. Thespectrum is extracted
                      from the interferogram which is superimposing the image on
                      the detector.To specifically observe the oxygen A-band
                      emissions, a bandpass filter of 6 nm centered around763 nm
                      is used. The Oxygen A-band was chosen as it peaks around 90
                      km and from its relativespectral band shape, the temperature
                      can be directly derived. The instrument is scheduled to
                      belaunched on the International Satellite Program in
                      Research and Education (INSPIRE) Sat-3 mis-sion, led by the
                      Indian Institute of Space Science and Technology. The
                      objective of the mission istwofold: to acquire expertise for
                      all participating scientists and to validate the onboard
                      instrumentsin orbit. Furthermore, the mission aims to
                      integrate into the INSPIRE constellation, providing
                      aconstellation of Earth and space weather-monitoring
                      satellites. The expected outcomes include en-hanced models
                      of atmospheric dynamics and will facilitate more accurate
                      space weather and climatepredictions.},
      month         = {Sep},
      date          = {2024-09-02},
      organization  = {17th Pico- and Nano-Satellite
                       Workshop, Berlin (Germany), 2 Sep 2024
                       - 2 Sep 2024},
      cin          = {ICE-4 / ZEA-1 / ZEA-2},
      cid          = {I:(DE-Juel1)ICE-4-20101013 / I:(DE-Juel1)ZEA-1-20090406 /
                      I:(DE-Juel1)ZEA-2-20090406},
      pnm          = {2A3 - Remote Sensing (CARF - CCA) (POF4-2A3) / 2112 -
                      Climate Feedbacks (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2A3 / G:(DE-HGF)POF4-2112},
      typ          = {PUB:(DE-HGF)1},
      doi          = {10.34734/FZJ-2024-05371},
      url          = {https://juser.fz-juelich.de/record/1030638},
}