Polar Pits Sample Clauses

Polar Pits. Polar pits are small. Negative relief features that as of yet have only been found in polar troughs. They are around 1-5 metres in diameter, and can appear, change in size and disappear seasonally. Although at first glance the size of such features would be too small for a citizen science project using traditional remotely sensed data (HiRISE etc.), it could be possible using processed ortho-rectified imagery. Other research has looked at phenomena that occur around polar pits – transient bright ‘halos’. This could be an easier fit for a citizen science project, as in addition to changing in size seasonally they are also much larger – ranging from 10 – 55 metres in diameter. ▇▇▇▇▇▇▇, ▇., ▇▇▇▇▇▇▇▇▇, ▇., ▇▇▇▇▇, S., ▇▇▇▇▇▇, A.S., ▇▇▇▇▇▇▇▇▇▇, ▇., ▇▇▇▇▇, C., ▇▇▇▇▇▇, N.E., ▇▇▇▇▇▇, P. 2014. Meter-scale pits in Mars’ north polar layered deposits. 45th Lunar and Planetary Society Conference, 2431. New features, change detection Detection, morphology and possible formation mechanisms HiRISE DTM, Ortho- rectified 1-5 m in diameter, disappear, appear, and change in size over a season ▇▇▇▇▇▇▇, P., 2014. Transient bright “halos” on the south polar residual cap of mars: Implications for mass balance. LPI Contributions 1791, 1013. Change detection Analysis of halos that appear around pits CTX HiRISE MOC Only present in MY28, between 279 & 331. Width changes between 12- 55m.