On the distortions in calculated GW parameters during slanted atmospheric soundings
The significant distortions introduced in the measured atmospheric gravity wavelengths by soundings other than those in vertical and horizontal directions, are discussed as a function of the elevation angle of the sounding path and the gravity wave aspect ratio. Under- or overestimation of real...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-03-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://www.atmos-meas-tech.net/11/1363/2018/amt-11-1363-2018.pdf |
| Summary: | The significant distortions introduced in the measured atmospheric gravity
wavelengths by soundings other than those in vertical and horizontal
directions, are discussed as a function of the elevation angle of the
sounding path and the gravity wave aspect ratio. Under- or overestimation of
real vertical wavelengths during the measurement process depends on the value
of these two parameters. The consequences of these distortions on the
calculation of the energy and the vertical flux of horizontal momentum are
analyzed and discussed in the context of two experimental limb satellite
setups: GPS-LEO radio occultations and TIMED/SABER ((Atmosphere using Broadband Emission Radiometry/Thermosphere–Ionosphere–Mesosphere–Energetics and Dynamics))
measurements. Possible discrepancies previously found between the momentum
flux calculated from satellite temperature profiles, on site and from model
simulations, may to a certain degree be attributed to these distortions.
A recalculation of previous momentum flux climatologies based on these
considerations seems to be a difficult goal. |
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| ISSN: | 1867-1381 1867-8548 |