Earth and planetary aeolian streaks: A review

Cohen-Zada, Aviv Lee; Blumberg, Dan G.; Maman, Shimrit

doi:10.1016/j.aeolia.2015.12.002

Cited by 10 publications

(9 citation statements)

References 109 publications

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“…Wind erosion is one of the most important surface processes shaping the desert landscapes on the Earth and other terrestrial bodies such as Mars and Saturn's moon Titan (e.g., Goudie, 2008;Mccauley et al, 1979;Pullen et al, 2018;Rubin & Hesp, 2009;de Silva et al, 2010;Sullivan et al, 2005;Thomson et al, 2008;Xiao et al, 2017). It dominates in arid to semiarid windy regions (e.g., central Asia, Africa, and the western slope of the central Andes) by deflation and/or abrasion, forming distinctive landforms such as yardangs, streaks, pans, and sand dunes (e.g., Cohen-Zada et al, 2016;Goudie, 2008;Kapp et al, 2011;Li et al, 2016;Niu et al, 2011;Pelletier et al, 2018;Pullen et al, 2018;de Silva et al, 2010;Washington et al, 2006). The total amount, timing, and rates of wind erosion are more difficult to quantify than erosion by fluvial and glacial processes, particularly on long timescales (10 4 -10 6 years).…”

Section: Introductionmentioning

confidence: 99%

Quantifying Wind Erosion During the Late Quaternary in the Qaidam Basin, Central Asia

Prush

Lin

et al. 2019

Geophysical Research Letters

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Wind erosion is an important surface process on terrestrial planets but is difficult to quantify particularly on long‐term timescales. Here we use high‐resolution Terrestrial Laser Scanning and cosmogenic Beryllium‐10 (10Be) exposure dating to investigate the yardangs, a wind‐eroded landform with aerodynamic forms, within the western Qaidam Basin, Central Asia. The results indicate that the yardangs started to form at ~105 ka, coincident with the early phase of the arid last glacial period. We further calibrated the wind erosion rate in the last glacial period to be ~0.26 mm/a, twice as fast as that of the present‐day interglacial period in our study site. Our results highlight the severe wind erosion during glacial periods and emphasize the fundamental control of global glacial‐interglacial climate oscillations on the secular variation in wind erosion in the Qaidam Basin during the late Quaternary period.

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Section: Introductionmentioning

confidence: 99%

Quantifying Wind Erosion During the Late Quaternary in the Qaidam Basin, Central Asia

Prush

Lin

et al. 2019

Geophysical Research Letters

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“…Satellite remote sensing images have been widely used since the 1970s to document and interpret aeolian sand morphologies – dunes among them – on Earth and on extraterrestrial bodies (Breed and Grow, ; Tsoar et al, ; Tsoar and Blumberg, ; Radebaugh et al, ; Cohen‐Zada et al, ). Early studies relied mainly on passive optical systems, such as Landsat 1 (ERTS), to map and classify dunes (Breed et al, ; McKee, ).…”

Section: Introductionmentioning

confidence: 99%

Mapping dune dynamics by InSAR coherence

Havivi

Amir

Schvartzman

et al. 2018

Earth Surf Processes Landf

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It is generally held that subtle changes in sandy environments are very difficult to detect in imagery. Nonetheless, this study demonstrates how synthetic aperture radar (SAR) interferometric decorrelation can be used to identify changes in individual sand dunes. The use of coherence maps over time facilitates the analysis of dune dynamics, both temporally and spatially. The Ashdod‐Nizzanim coastal dunes, along the southern coastal plain of Israel, were chosen as an illustrative example of the analysis of dune dynamics. High‐resolution TerraSAR‐X (TSX) radar images covering the entire research area were acquired for the period February to July 2012, together with meteorology data (wind and rain) for the area. The coherence results enabled the stability of individual dunes to be described as a function of time. It was found that the dune crests were more stable than the windward slopes and that the degree of stability was dependent on the distance of the dune from the sea. The results of this study show the potential of using interferometric synthetic aperture radar (InSAR) decorrelation for aeolian studies, even in areas characterized by low coherence. Copyright © 2017 John Wiley & Sons, Ltd.

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“…The reanalysis and the weather station wind data were compared with the data in the new Earth wind streak database compiled and maintained by our group [ Cohen‐Zada et al ., ]. The database covers 499 wind streak sites that together contain more than 2900 wind streaks.…”

Section: Methodsmentioning

confidence: 99%

Earth aeolian wind streaks: Comparison to wind data from model and stations

2017

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Wind streak is a collective term for a variety of aeolian features that display distinctive albedo surface patterns. Wind streaks have been used to map near‐surface winds and to estimate atmospheric circulation patterns on Mars and Venus. However, because wind streaks have been studied mostly on Mars and Venus, much of the knowledge regarding the mechanism and time frame of their formation and their relationship to the atmospheric circulation cannot be verified. This study aims to validate previous studies' results by a comparison of real and modeled wind data with wind streak orientations as measured from remote‐sensing images. Orientations of Earth wind streaks were statistically correlated to resultant drift direction (RDD) values calculated from reanalysis and wind data from 621 weather stations. The results showed good agreement between wind streak orientations and reanalysis RDD (r = 0.78). A moderate correlation was found between the wind streak orientations and the weather station data (r = 0.47); a similar trend was revealed on a regional scale when the analysis was performed by continent, with r ranging from 0.641 in North America to 0.922 in Antarctica. At sites where wind streak orientations did not correspond to the RDDs (i.e., a difference of 45°), seasonal and diurnal variations in the wind flow were found to be responsible for deviation from the global pattern. The study thus confirms that Earth wind streaks were formed by the present wind regime and they are indeed indicative of the long‐term prevailing wind direction on global and regional scales.

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Earth and planetary aeolian streaks: A review

Cited by 10 publications

References 109 publications

Quantifying Wind Erosion During the Late Quaternary in the Qaidam Basin, Central Asia

Quantifying Wind Erosion During the Late Quaternary in the Qaidam Basin, Central Asia

Mapping dune dynamics by InSAR coherence

Earth aeolian wind streaks: Comparison to wind data from model and stations

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