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Results from the Mars Pathfinder camera
P H Smith1, J F Bell, N T Bridges
1Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA. psmith@lpl.arizona.edu
Science (New York, N.Y.)
|December 31, 1997
Summary
The Imager for Mars Pathfinder (IMP) revealed a complex Martian surface shaped by water, wind, and impacts. Analysis identified distinct rock and soil types, and observed thin, bluish water-ice clouds in the predawn sky.
Area of Science:
- Planetary Science
- Geology
- Atmospheric Science
Background:
- The Martian surface exhibits complex geological features.
- Previous missions have provided limited data on surface composition and atmospheric conditions.
Purpose of the Study:
- To analyze the geological features and surface composition of Mars using the Imager for Mars Pathfinder (IMP).
- To investigate atmospheric phenomena, specifically cloud formation, in the Martian predawn sky.
Main Methods:
- Analysis of surface images from the Imager for Mars Pathfinder (IMP).
- Spectral signature analysis of Martian rocks and soils (440-1000 nm).
- Observation and analysis of upward-looking IMP images of the predawn sky.
Main Results:
- Identified a complex Martian surface with ridges and troughs modified by fluvial, aeolian, and impact processes.
- Characterized three distinct rock types and four soil classes based on spectral signatures.
- Observed thin, bluish clouds, likely composed of water ice, forming on atmospheric haze.
Conclusions:
- The Martian surface is dynamic, shaped by multiple geological processes.
- IMP data provides detailed insights into Martian surface composition and atmospheric conditions.
- Water ice clouds are present in the Martian atmosphere, indicating active hydrological processes.