Semidiurnal solar tides in the mid-latitude troposphere are investigated using harmonic analysis of 404 MHz radar profiler wind data obtained from a wide longitude zone in the U.S. The tides are apparent above a 1000-m-deep surface layer and increase in amplitude with height, attaining speeds of 0.5-0.7 rn/s at 5-7 km. Observed wind characteristics agree well with tidal characteristics obtained...

[1] Based on the perturbations of the trajectory of the Mars Reconnaissance Orbiter due to atmospheric drag, we estimate, using Precision Orbit Determination, the density of the Martian exosphere near 250 km altitude with much better temporal (and therefore spatial) resolution than previously possible with this method. Small longitudinal density variations are observed to be consistent over lon...

As part of an ongoing effort to develop a parameterization of wave-induced abyssal mixing, the authors derive an heuristic model for nonlinear wave breaking and energy dissipation associated with internal tides. Then the saturation and dissipation of internal tides for idealized and observed topography samples are investigated. One of the main results is that the wave-induced mixing could be mo...

[1] We report on the atmospheric structure derived from atmospheric entry of NASA’s Phoenix Mars probe using Phoenix Atmospheric Structure Experiment (ASE) data complemented by Mars Cl imate Sounder (MCS) temperature‐pressure profiles. Oscillations in temperature, caused by thermal tides, have vertical wavelengths of tens of kilometres. Their amplitudes are much larger in individual profiles th...

In the summer of 1996, an experiment was conducted off the coast of Portugal to study the effects of internal tides on sound propagation. This experiment—called INTIMATE '96 (Internal Tide Investigation by Means of Acoustic Tomography Experiment)—has provided a great deal of insight about the variability of pulse transmission over space and time. In contrast to a common view of shallow-water pr...