2003
DOI: 10.1029/2002je002007
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Sublimation of Mars's southern seasonal CO2 ice cap and the formation of spiders

Abstract: [1] In this paper we define and describe morphological features that have colloquially been termed ''spiders'' and map their distribution in the south polar region of Mars. We show that these features go through a distinct seasonal evolution, exhibiting dark plumes and associated fan-shaped deposits during the local defrosting of the seasonal cap. We have documented the seasonal evolution of the cryptic region and have found that spiders only occur within this terrain. These observations are consistent with a … Show more

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Cited by 147 publications
(218 citation statements)
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“…These structures form the ''classic" case as described by Piqueux et al (2003). The reflectance of the dark deposits is typically 20-40% of the surroundings early in the spring season.…”
Section: Spidersmentioning
confidence: 99%
See 2 more Smart Citations
“…These structures form the ''classic" case as described by Piqueux et al (2003). The reflectance of the dark deposits is typically 20-40% of the surroundings early in the spring season.…”
Section: Spidersmentioning
confidence: 99%
“…Kieffer (2007) provided a detailed model of the complete process including estimates for the height of the inferred gas jets. Piqueux et al (2003) linked venting to surface structures by suggesting that ''araneiform" (spider-like) structures in the southern polar region had been produced by this process. This is the second of three papers which describe the surface morphology and sublimation-driven activity in specific areas of the martian south polar region as observed by the High Resolution Imaging Science Experiment (HiRISE) onboard NASA's Mars Reconnaissance Orbiter (MRO) spacecraft.…”
Section: Generalmentioning
confidence: 99%
See 1 more Smart Citation
“…The seasonal CO 2 cycle, including formation of the seasonal caps, has been extensively studied (recent references include, e.g., James and Cantor, 2001;Kieffer and Titus, 2001;Smith et al, 2001;Piquex et al, 2003;DoutĂ© et al, 2006). Each year, seasonal insolation variations result in about 25% of the martian atmosphere alternatively condensing and sublimating from the poles.…”
Section: What Is the Current Mass Balance (Mechanisms Rates Temporamentioning
confidence: 99%
“…Although mostly unchanged, icy, CO2 dominant SPRC has dynamic phenomena related to seasonal changes on the planet. A few investigations have been performed on these changes, such as studies on layers of solid CO2 and water ice (Plaut et al, 2007), the so-called Swiss Cheese Terrain (Titus et al, 2004) analysed in HiRISE images and Mars Orbiter Camera, and spider-like channels (Piqueux et al, 2003) on the ice surface in HiRISE images. As there are yet more changes likely to be discovered in SPRC, detecting changes in the surface is necessary before doing the next step, analysing and identifying what surface processes are responsible for these changes.…”
Section: Introductionmentioning
confidence: 99%