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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

A temperature profile comparison between GM3 and the Mars Global Surveyor Radio Occulation dataset /

Rosso, Adam M. January 2007 (has links)
Thesis (M.Sc.)--York University, 2007. Graduate Programme in Earth and Space Science. / Typescript. Includes bibliographical references (leaves 119-121). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR38822
52

AN ANALYSIS OF THE VOYAGER IMAGES OF JOVIAN LIGHTNING (JUPITER).

WILLIAMS, MARK ANDREW. January 1986 (has links)
In 1979, Voyager I provided the first strong evidence for the existence of lightning on another planet. Two pictures taken while the spacecraft was in Jupiter's shadow reveal about three dozen luminous spots on the night side of the planet. After careful examination of these spots, we conclude that they are lightning flashes occurring somewhere within Jupiter's atmosphere. A search through the additional Voyager I and II images of Jupiter's night hemisphere failed to locate any additional lightning flashes. The lower limit for the planetary lightning rate on Jupiter is found to be 10⁻⁴ km⁻² yr⁻¹. It must be noted that the spacecraft could only detect lightning discharges at least 1000 times higher than typical terrestrial flashes. Furthermore, due to attenuation, any discharges occurring deep within the atmosphere could not have been imaged. Calculations suggest that the actual flash rate could be about 0.1 km⁻² yr⁻¹. Analysis of the lightning images reveals that the flashes group near 50°N latitude. High-resolution photographs of the lightning region made in daylight about 65 hours before the discovery images show long, light ribbon-like clouds. Almost every flash appears to be associated with one of these clouds. Calculations made with a Monte Carlo radiative transfer code that computes the luminosity distribution of the spot on the top of the ammonia cloud that is produced by a point source within the atmosphere indicate that the lightning production region is near the top of the lower cloud deck. The average optical energy radiated by a discharge is calculated to be about 10⁹ J. The total electrical energy is estimated to be about 3 x 10¹² J. Calculations made with a chemical equilibrium model show that lightning synthesis cannot account for the observed abundances of such disequilibrium species as CO, HCN, and C₂H₂.
53

A POLARIMETRIC STUDY OF THE ATMOSPHERE OF VENUS

Coffeen, David L. January 1968 (has links)
No description available.
54

CLOUD STRUCTURE IN THE SOUTH TROPICAL ZONE, RED SPOT AND NORTH POLAR REGION OF JUPITER

Clements, Arthur Earhart, 1940- January 1974 (has links)
No description available.
55

NUMERICAL MODELING OF THE DIURNAL WINDS NEAR THE MARTIAN POLAR CAPS

Burk, Stephen Dwight, 1945- January 1975 (has links)
No description available.
56

A SOLAR FLUX RADIOMETER FOR THE 1978 PIONEER-VENUS MISSION

Palmer, James McLean, 1937- January 1975 (has links)
No description available.
57

LIGHT SCATTERING PROPERTIES OF JUPITER'S RED SPOT

Doose, Lyn Richard, 1944- January 1976 (has links)
No description available.
58

A body wave study of the seismic velocity and attenuation structures of Earth's inner core

Waszek, Lauren Esme January 2012 (has links)
No description available.
59

Characteristics of a heterogeneous mantle

Shorttle, Oliver Charles Henry January 2013 (has links)
No description available.
60

Normal mode and body wave studies of the Earth's inner core

Mäkinen, Anna Marjatta January 2013 (has links)
No description available.

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