On the distortions in calculated GW parameters during slanted atmospheric soundings

Alejandro de la Torre, Peter Alexander, Torsten Schmidt, Pablo Llamedo, Rodrigo Hierro
2018 Atmospheric Measurement Techniques  
<p><strong>Abstract.</strong> 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
more » ... 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.</p>
doi:10.5194/amt-11-1363-2018 fatcat:phcm2vo3hzgv3bqtf4irhy6z6u