S. Vijayan
Physical Research Laboratory
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Publication
Featured researches published by S. Vijayan.
Land Surface and Cryosphere Remote Sensing III | 2016
Rishitosh K. Sinha; S. Vijayan; Rajiv R. Bharti
Rock glaciers, regarded as cryospheric ice/water resource in the terrestrial-glacial systems based on their tongue/lobate-shaped flow characteristic and subsurface investigation using ground-penetrating radar. We examined the subsurface, geomorphology, climate-sensitivity and thermophysical properties of a Lobate Flow Feature (LFF) on Mars (30°-60° N and S hemispheres) to compare/assess the potentials of rock glaciers as an analog in suggesting LFFs to be a source of subsurface ice/water. LFFs are generally observed at the foot of impact craters’ wall. HiRISE/CTX imageries from MRO spacecraft were used for geomorphological investigation of LFF using ArcMap-10.0 and subsurface investigation was carried out using data from MRO-SHARAD (shallow radar) after integrating with SiesWare-8.0. ENVI-5.0 was used to retrieve thermophysical properties of LFF from nighttime datasets (12.57 μm) acquired by THEMIS instrument-onboard the Mars Odyssey spacecraft and derive LFFs morphometry from MOLA altimeter point tracks onboard MGS spacecraft. Integrating crater chronology tool (Craterstats) with Arc Map, we have derived the formation age of LFF. Our investigation and comparison of LFF to rock glaciers revealed: (1) LFFs have preserved ice at depth ~50m as revealed from SHARAD radargram and top-layer composed of rocky-debris material with thermal inertia (~300-350 Jm-2 K-1s-1/2). (2) LFF formation age (~10-100 Ma) corresponds to moderate scale debris covered glaciation of a shorter-span suggesting high sensitivity to obliquity-driven climatic shifts. (3) Presence of polygon cracks and high linear-arcuate furrow-and-ridges on the surface indicates presence of buried ice. This work is a significant step towards suggesting LFF to be a potential source of present-day stored ice/water on Mars.
Icarus | 2013
S. Vijayan; K. Vani; S. Sanjeevi
Planetary and Space Science | 2017
Rishitosh K. Sinha; S. Vijayan
Journal of The Indian Society of Remote Sensing | 2013
S. Vijayan; K. Vani; S. Sanjeevi
Advances in Space Research | 2013
S. Vijayan; K. Vani; S. Sanjeevi
Journal of Geophysical Research | 2017
S. Vijayan; Rishitosh K. Sinha
Planetary and Space Science | 2015
S. Vijayan; Shiv Mohan; SripadaV.S. Murty
Journal of Astrophysics and Astronomy | 2008
S. Vijayan
Geological Society, London, Special Publications | 2018
Rishitosh K. Sinha; S. Vijayan; Anil D. Shukla; Priyabrata Das; Falguni Bhattacharya
Journal of Geophysical Research | 2017
S. Vijayan; Rishitosh K. Sinha