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Scaling exponents for turbulence and other random processes and their relationships with multifractal structure

Physical Review E American Physical Society (APS) 50:3 (1994) 1823-1835

Authors:

Samuel I Vainshtein, KR Sreenivasan, Raymond T Pierrehumbert, Vinay Kashyap, Anurag Juneja
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Spectra of local and nonlocal two-dimensional turbulence

Chaos Solitons & Fractals Elsevier 4:6 (1994) 1111-1116

Authors:

Raymond T Pierrehumbert, Isaac M Held, Kyle L Swanson
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Tracer microstructure in the large-eddy dominated regime

Chaos Solitons & Fractals Elsevier 4:6 (1994) 1091-1110
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Nonlinear Wave Packet Evolution on a Baroclinicaily Unstable Jet

Journal of the Atmospheric Sciences American Meteorological Society 51:3 (1994) 384-396

Authors:

K Swanson, RT Pierrehumbert
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Characterization of the thermodynamic behaviour of pressure modulated cells for remote sensing of the atmosphere of Mars

Journal of Quantitative Spectroscopy and Radiative Transfer 52:1 (1994) 1-20

Authors:

PGJ Irwin, SB Calcutt, FW Taylor

Abstract:

A radiometric experiment was conducted to investigate the thermodynamic behaviour of the H2O and CO2 pressure modulated cells of the Pressure Modulator Infrared Radiometer (PMIRR) which flew on "Mars Observer" in 1992. The wave forms and phases of the transmission, emission, pressure and piston position cycles, together with the mean absorption were, for the first time, all measured during the same experiment. The measured transmission and emission cycles were used to calculate the phase and amplitude of the temperature cycles and were found to be super-adiabatic for both cells, in reasonable agreement with a thermal diffusion model. Anomalies were seen in the H2O modulator driving frequency, as has been observed by other authors, but none were evident in the measured cell wave forms suggesting that the water vapour behaves as an ideal gas in the cell. © 1994.
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