A windstreak is a planetary surface feature of aeolian origin characterized by an albedo that contrasts with surrounding surface in an elongated pattern. [1] [2] Windstreaks are associated with topographical obstacles, [1] and are very commonly, but not exclusively, found near craters. [3] These features have been observed on Mars, Venus, Titan, and the Earth, [4] although they are considered rare on Earth. [5] Terrestrial examples of windstreaks are found at the Pali-Aike volcanic field.
Windstreaks are a term that is more used in remote sensing, as such an albedo pattern can be representative of many geomorphological features, albeit all of an aeolian origin. [5] All forms of sediment transport ( saltation, traction, and suspension) and sediment sizes ( clay to gravel) are considered to be involved during windstreak formation, but the net result is that some variation occurs between the streak's surface and the surrounding surface. [6] Thomas et al. (1981) suggested three broad types of windstreak, [2] which is still cited in later literature. [6] These types include (1) bright streaks (high albedo streak with low albedo surface), where dust is deposited from suspension; (2) dark streaks (low albedo streak with high albedo surface) characterized by the erosion of bright material; and (3) dark streaks where dark material is emplaced from saltation. [2]
References
- ^ a b Sagan, Carl; Veverka, Joseph; Fox, Paul; Dubisch, Russell; Lederberg, Joshua; Levinthal, Elliott; Quam, Lynn; Tucker, Robert; Pollack, James B.; Smith, Bradford A. (1972). "Variable features on Mars: Preliminary mariner 9 television results". Icarus. 17 (2): 346–-372. doi: 10.1016/0019-1035(72)90005-X.
- ^ a b c Thomas, P.; Verevka, J.; Lee, S.; Bloom, A. (1981). "Classification of wind streaks on Mars". Icarus. 45 (1): 124–153. doi: 10.1016/0019-1035(81)90010-5.
- ^ Verevka, J.; Gierasch, P.; Thomas, P. (1981). "Wind streaks on Mars: Meteorological control of occurrence and mode of formation". Icarus. 45 (1): 154–156. doi: 10.1016/0019-1035(81)90011-7.
- ^ Cohen-Zada, A.L.; Maman, S.; Blumberg, D.G. "Earth aeolian wind streaks: Comparison to wind data from model and stations". Journal of Geophysical Research: Planets. 122: 1119–1137. doi: 10.1002/2016JE005242.
- ^ a b Rodriguez, J. A. P.; Zimbelman, J. R.; Kargel, J. S.; Tanaka, K. L.; Yamamoto, A.; Sasaki, S. (1 March 2008). "The Pali Aike Windstreak Field, Southern Patagonia, Argentina". Lunar and Planetary Science Conference. 39 (1391): 1518. Bibcode: 2008LPI....39.1518R.
- ^ a b Edgett, Kenneth S. (2002). "Low-albedo surfaces and eolian sediment: Mars Orbiter Camera views of western Arabia Terra craters and wind streaks". Journal of Geophysical Research. 107 (E6): 5038. doi: 10.1029/2001je001587. hdl: 2060/20010069272.
A windstreak is a planetary surface feature of aeolian origin characterized by an albedo that contrasts with surrounding surface in an elongated pattern. [1] [2] Windstreaks are associated with topographical obstacles, [1] and are very commonly, but not exclusively, found near craters. [3] These features have been observed on Mars, Venus, Titan, and the Earth, [4] although they are considered rare on Earth. [5] Terrestrial examples of windstreaks are found at the Pali-Aike volcanic field.
Windstreaks are a term that is more used in remote sensing, as such an albedo pattern can be representative of many geomorphological features, albeit all of an aeolian origin. [5] All forms of sediment transport ( saltation, traction, and suspension) and sediment sizes ( clay to gravel) are considered to be involved during windstreak formation, but the net result is that some variation occurs between the streak's surface and the surrounding surface. [6] Thomas et al. (1981) suggested three broad types of windstreak, [2] which is still cited in later literature. [6] These types include (1) bright streaks (high albedo streak with low albedo surface), where dust is deposited from suspension; (2) dark streaks (low albedo streak with high albedo surface) characterized by the erosion of bright material; and (3) dark streaks where dark material is emplaced from saltation. [2]
References
- ^ a b Sagan, Carl; Veverka, Joseph; Fox, Paul; Dubisch, Russell; Lederberg, Joshua; Levinthal, Elliott; Quam, Lynn; Tucker, Robert; Pollack, James B.; Smith, Bradford A. (1972). "Variable features on Mars: Preliminary mariner 9 television results". Icarus. 17 (2): 346–-372. doi: 10.1016/0019-1035(72)90005-X.
- ^ a b c Thomas, P.; Verevka, J.; Lee, S.; Bloom, A. (1981). "Classification of wind streaks on Mars". Icarus. 45 (1): 124–153. doi: 10.1016/0019-1035(81)90010-5.
- ^ Verevka, J.; Gierasch, P.; Thomas, P. (1981). "Wind streaks on Mars: Meteorological control of occurrence and mode of formation". Icarus. 45 (1): 154–156. doi: 10.1016/0019-1035(81)90011-7.
- ^ Cohen-Zada, A.L.; Maman, S.; Blumberg, D.G. "Earth aeolian wind streaks: Comparison to wind data from model and stations". Journal of Geophysical Research: Planets. 122: 1119–1137. doi: 10.1002/2016JE005242.
- ^ a b Rodriguez, J. A. P.; Zimbelman, J. R.; Kargel, J. S.; Tanaka, K. L.; Yamamoto, A.; Sasaki, S. (1 March 2008). "The Pali Aike Windstreak Field, Southern Patagonia, Argentina". Lunar and Planetary Science Conference. 39 (1391): 1518. Bibcode: 2008LPI....39.1518R.
- ^ a b Edgett, Kenneth S. (2002). "Low-albedo surfaces and eolian sediment: Mars Orbiter Camera views of western Arabia Terra craters and wind streaks". Journal of Geophysical Research. 107 (E6): 5038. doi: 10.1029/2001je001587. hdl: 2060/20010069272.