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| Hauptseite > Publikationsdatenbank > Scale separation for gravity wave analysis from 3D temperature observations in the mesosphere and lower thermosphere (MLT) region > print |
| Hauptseite > Publikationsdatenbank > Scale separation for gravity wave analysis from 3D temperature observations in the mesosphere and lower thermosphere (MLT) region > print |
| 001 | 1028502 | ||
| 005 | 20250204113908.0 | ||
| 024 | 7 | _ | |a 10.5194/amt-17-3829-2024 |2 doi |
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| 037 | _ | _ | |a FZJ-2024-04654 |
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| 100 | 1 | _ | |a Linder, Björn |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Scale separation for gravity wave analysis from 3D temperature observations in the mesosphere and lower thermosphere (MLT) region |
| 260 | _ | _ | |a Katlenburg-Lindau |c 2024 |b Copernicus |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a MATS (Mesospheric Airglow/Aerosol Tomography and Spectroscopy) is a Swedish satellite designed to investigate atmospheric dynamics in the mesosphere and lower thermosphere (MLT). By observing structures in noctilucent clouds over polar regions and oxygen atmospheric-band (A- band) emissions globally, MATS will provide the research community with properties of the MLT atmospheric wave field. Individual A-band images taken by MATS’s main instrument, a six-channel limb imager, are transformed through tomography and spectroscopy into three-dimensional temperature fields, within which the wave structures are embedded. To identify wave properties, particularly the gravity wave momentum flux, from the temperature field, smaller-scale perturbations (associated with the targeted waves) must be separated from large-scale background variations using a method of scale separation. This paper investigates the possibilities of employing a simple method based on smoothing polynomials to separate the smaller and larger scales. Using using synthetic tomography data based on the HIAMCM (HIgh Altitude Mechanistic general Circulation Model), we demonstrate that smoothing polynomials can be applied to MLT temperatures to obtain fields corresponding to global-scale separation at zonal wavenumber 18. The simplicity of the method makes it a promising candidate for studying wave dynamics in MATS temperature fields. |
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| 773 | _ | _ | |a 10.5194/amt-17-3829-2024 |g Vol. 17, no. 12, p. 3829 - 3841 |0 PERI:(DE-600)2505596-3 |n 12 |p 3829 - 3841 |t Atmospheric measurement techniques |v 17 |y 2024 |x 1867-1381 |
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