scholarly journals Gravity wave momentum fluxes from MF and meteor radar measurements in the polar MLT region

2015 ◽  
Vol 120 (1) ◽  
pp. 736-750 ◽  
Author(s):  
Manja Placke ◽  
Peter Hoffmann ◽  
Ralph Latteck ◽  
Markus Rapp
Keyword(s):  
Gravity Wave ◽  
Meteor Radar ◽  
Momentum Fluxes ◽  
Radar Measurements ◽  
Mlt Region ◽  
Wave Momentum

Gravity wave momentum fluxes in the MLT—Part II: Meteor radar investigations at high and midlatitudes in comparison with modeling studies

2011 ◽  
Vol 73 (9) ◽  
pp. 911-920 ◽  
Author(s):  
Manja Placke ◽  
Peter Hoffmann ◽  
Erich Becker ◽  
Christoph Jacobi ◽  
Werner Singer ◽  
...  
Keyword(s):  
Gravity Wave ◽  
Meteor Radar ◽  
Modeling Studies ◽  
Momentum Fluxes ◽  
Wave Momentum

scholarly journals Improved analysis of all-sky meteor radar measurements of gravity wave variances and momentum fluxes

2013 ◽  
Vol 31 (5) ◽  
pp. 889-908 ◽  
Author(s):  
V. F. Andrioli ◽  
D. C. Fritts ◽  
P. P. Batista ◽  
B. R. Clemesha
Keyword(s):  
Gravity Wave ◽  
Good Accuracy ◽  
Test Results ◽  
Empirical Correction ◽  
Simple Simulation ◽  
Momentum Fluxes ◽  
Simple Change ◽  
Radar Measurements ◽  
Wave Momentum

Abstract. The advantages of using a composite day analysis for all-sky interferometric meteor radars when measuring mean winds and tides are widely known. On the other hand, problems arise if this technique is applied to Hocking's (2005) gravity wave analysis for all-sky meteor radars. In this paper we describe how a simple change in the procedure makes it possible to use a composite day in Hocking's analysis. Also, we explain how a modified composite day can be constructed to test its ability to measure gravity wave momentum fluxes. Test results for specified mean, tidal, and gravity wave fields, including tidal amplitudes and gravity wave momentum fluxes varying strongly with altitude and/or time, suggest that the modified composite day allows characterization of monthly mean profiles of the gravity wave momentum fluxes, with good accuracy at least at the altitudes where the meteor counts are large (from 89 to 92.5 km). In the present work we also show that the variances measured with Hocking's method are often contaminated by the tidal fields and suggest a method of empirical correction derived from a simple simulation model. The results presented here greatly increase our confidence because they show that our technique is able to remove the tide-induced false variances from Hocking's analysis.

Meteor Radar Estimations of Gravity Wave Momentum Fluxes: Evaluation Using Simulations and Observations Over Three Tropical Locations

2019 ◽  
Vol 124 (8) ◽  
pp. 7184-7201 ◽  
Author(s):  
M. Pramitha ◽  
K. Kishore Kumar ◽  
M. Venkat Ratnam ◽  
S. Vijaya Bhaskara Rao ◽  
Geetha Ramkumar
Keyword(s):  
Gravity Wave ◽  
Meteor Radar ◽  
Momentum Fluxes ◽  
Wave Momentum

Short period gravity wave momentum fluxes observed in the tropical troposphere, stratosphere and mesosphere

2013 ◽  
Vol 105-106 ◽  
pp. 1-7 ◽  
Author(s):  
S. Eswaraiah ◽  
M. Venkat Ratnam ◽  
B.V. Krishna Murthy ◽  
A. Guharay ◽  
S. Vijaya Bhaskara Rao
Keyword(s):  
Gravity Wave ◽  
Short Period ◽  
Momentum Fluxes ◽  
Tropical Troposphere ◽  
Wave Momentum

scholarly journals Quantifying gravity wave momentum fluxes with Mesosphere Temperature Mappers and correlative instrumentation

2014 ◽  
Vol 119 (24) ◽  
pp. 13,583-13,603 ◽  
Author(s):  
David C. Fritts ◽  
P.-Dominique Pautet ◽  
Katrina Bossert ◽  
Michael J. Taylor ◽  
Bifford P. Williams ◽  
...  
Keyword(s):  
Gravity Wave ◽  
Momentum Fluxes ◽  
Wave Momentum
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