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Your search keyword '"Garry, J. R. C"' showing total 8 results
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8 results on '"Garry, J. R. C"'

2. Dry Acid Deposition and Accumulation on the Surface of Mars and in the Atacama Desert, Chile

Author

Quinn, R. C, Zent, A. P, Ehrenfruend, P, Taylor, C. L, McKay, C. P, and Garry, J. R. C

Subjects
Lunar And Planetary Science And Exploration
Abstract

It has been discovered recently that soils from certain regions of the Chilean Atacama Desert have some characteristics that are similar to the surface materials tested by the Viking Landers. Navarro-Gonzalez et al. demonstrated that the quantity and diversity of heterotrophic bacteria increase as a function of local water availability in the Atacama, and that for some soil samples collected in the driest regions, no culturable bacteria could be isolated. Additionally, Navarro-Gonzalez et al. reported that pyrolysis-GCMS analysis of soils collected from these regions revealed extremely low levels of organic matter. Although the mechanism resulting in the low level of organics in these regions was not established by Navarro-Gonzalez, the condition of organic-depleted, near-sterile soil offers an interesting Earth analog of the martian surface material, as the Viking Gas Exchange (GEx) experiment and Labeled Release (LR) experiment were unable to demonstrate the presence of culturable bacteria, and the Viking pyrolysis- GCMS was unable to detect organic compounds.

Published
2005

5. Sonar behaviour in non-terrestrial ocean exploration

Author

Garry, J. R. C., Towner, M. C., Garry, J. R. C., and Towner, M. C.

Abstract

A goal for a future Europan payload is to determine the extent of the postulated sea, aspects of acoustic remote sensing are discussed with a view to operating a sonar in such an subsurface ocean.

6. Constraints on the Huygens landing site topography from the Surface Science Package Acoustic Properties Instrument

Author

Towner, M. C., Garry, J. R. C., Svedhem, H., Hagermann, A., Clark, B. C., Lorenz, R. D., Leese, M. R., Hathi, B., Zarnecki, J. C., Towner, M. C., Garry, J. R. C., Svedhem, H., Hagermann, A., Clark, B. C., Lorenz, R. D., Leese, M. R., Hathi, B., and Zarnecki, J. C.

Abstract

We present analysis of the results from the Huygens acoustic sounder instrument. The sounder sees a relatively smooth terrain, with specular reflectance characteristics.

7. Sonar behaviour in non-terrestrial ocean exploration

Author

Garry, J. R. C., Towner, M. C., Garry, J. R. C., and Towner, M. C.

Abstract

A goal for a future Europan payload is to determine the extent of the postulated sea, aspects of acoustic remote sensing are discussed with a view to operating a sonar in such an subsurface ocean.

8. Constraints on the Huygens landing site topography from the Surface Science Package Acoustic Properties Instrument

Author

Towner, M. C., Garry, J. R. C., Svedhem, H., Hagermann, A., Clark, B. C., Lorenz, R. D., Leese, M. R., Hathi, B., Zarnecki, J. C., Towner, M. C., Garry, J. R. C., Svedhem, H., Hagermann, A., Clark, B. C., Lorenz, R. D., Leese, M. R., Hathi, B., and Zarnecki, J. C.

Abstract

We present analysis of the results from the Huygens acoustic sounder instrument. The sounder sees a relatively smooth terrain, with specular reflectance characteristics.

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