The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform
Mark D. Bateman - One of the best experts on this subject based on the ideXlab platform.
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mega Blowouts in qinghai tibet plateau morphology distribution and initiation
Earth Surface Processes and Landforms, 2019Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
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Historical evolution and controls on mega-Blowouts in northeastern Qinghai-Tibetan Plateau, China
Geomorphology, 2019Co-Authors: Wanyin Luo, Patrick A. Hesp, Zhongyuan Wang, Mei Shao, Guangqiang Qian, Zhibao Dong, Mark D. BatemanAbstract:Abstract Mega-Blowouts are very large-scale deflationary landforms, formed by wind erosion. They are abundant in the Gonghe basin, northeast margin of the Qinghai-Tibet Plateau (QTP) and little is known about the evolution, dynamics or controls on the mega-blowout development. Here we report on mega-Blowouts' morphodynamic expansion rates based on 4 years of monitoring. Also presented is a remotely sensed longer-term (48 years) morphologic change record which is used to understand the initiation, growth and evolution of mega-Blowouts in alpine grasslands. Links between the morphodynamics and blowout-controlling factors are analysed. The expansion rates of the monitored Blowouts vary according to blowout area, with different parts of the Blowouts expanding at different rates. Generally longitudinal (downwind) mega-blowout expansion is greatest, with upwind headwall expansion via collapse being particularly significant. The growth of depositional lobes downwind of mega-Blowouts tends to be faster than growth of the deflation basins. Merging of adjacent Blowouts is one of the key mechanisms for mega-blowout development and extension. Sediment characteristics, wind erosion, water erosion, and freeze-thaw processes also all play a part in mega-blowout initiation and expansion. However, the relative roles that these factors play may differ according to a blowout's evolutionary stage. Due to an almost unlimited depth of sand, very low water table, and short grass vegetation cover, evolution into parabolic dunes is limited. A large proportion of sand patches and small Blowouts around the mega-Blowouts are still developing in the Gonghe basin proving that land degradation is still ongoing. Future work will focus on the feedback mechanisms between the blowout morphodynamics, climate change and anthropogenic impacts.
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Mega-Blowouts in Qinghai–Tibet Plateau: morphology, distribution and initiation.
Earth Surface Processes and Landforms, 2018Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
Wanyin Luo - One of the best experts on this subject based on the ideXlab platform.
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mega Blowouts in qinghai tibet plateau morphology distribution and initiation
Earth Surface Processes and Landforms, 2019Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
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Historical evolution and controls on mega-Blowouts in northeastern Qinghai-Tibetan Plateau, China
Geomorphology, 2019Co-Authors: Wanyin Luo, Patrick A. Hesp, Zhongyuan Wang, Mei Shao, Guangqiang Qian, Zhibao Dong, Mark D. BatemanAbstract:Abstract Mega-Blowouts are very large-scale deflationary landforms, formed by wind erosion. They are abundant in the Gonghe basin, northeast margin of the Qinghai-Tibet Plateau (QTP) and little is known about the evolution, dynamics or controls on the mega-blowout development. Here we report on mega-Blowouts' morphodynamic expansion rates based on 4 years of monitoring. Also presented is a remotely sensed longer-term (48 years) morphologic change record which is used to understand the initiation, growth and evolution of mega-Blowouts in alpine grasslands. Links between the morphodynamics and blowout-controlling factors are analysed. The expansion rates of the monitored Blowouts vary according to blowout area, with different parts of the Blowouts expanding at different rates. Generally longitudinal (downwind) mega-blowout expansion is greatest, with upwind headwall expansion via collapse being particularly significant. The growth of depositional lobes downwind of mega-Blowouts tends to be faster than growth of the deflation basins. Merging of adjacent Blowouts is one of the key mechanisms for mega-blowout development and extension. Sediment characteristics, wind erosion, water erosion, and freeze-thaw processes also all play a part in mega-blowout initiation and expansion. However, the relative roles that these factors play may differ according to a blowout's evolutionary stage. Due to an almost unlimited depth of sand, very low water table, and short grass vegetation cover, evolution into parabolic dunes is limited. A large proportion of sand patches and small Blowouts around the mega-Blowouts are still developing in the Gonghe basin proving that land degradation is still ongoing. Future work will focus on the feedback mechanisms between the blowout morphodynamics, climate change and anthropogenic impacts.
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Mega-Blowouts in Qinghai–Tibet Plateau: morphology, distribution and initiation.
Earth Surface Processes and Landforms, 2018Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
Zhongyuan Wang - One of the best experts on this subject based on the ideXlab platform.
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mega Blowouts in qinghai tibet plateau morphology distribution and initiation
Earth Surface Processes and Landforms, 2019Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
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Historical evolution and controls on mega-Blowouts in northeastern Qinghai-Tibetan Plateau, China
Geomorphology, 2019Co-Authors: Wanyin Luo, Patrick A. Hesp, Zhongyuan Wang, Mei Shao, Guangqiang Qian, Zhibao Dong, Mark D. BatemanAbstract:Abstract Mega-Blowouts are very large-scale deflationary landforms, formed by wind erosion. They are abundant in the Gonghe basin, northeast margin of the Qinghai-Tibet Plateau (QTP) and little is known about the evolution, dynamics or controls on the mega-blowout development. Here we report on mega-Blowouts' morphodynamic expansion rates based on 4 years of monitoring. Also presented is a remotely sensed longer-term (48 years) morphologic change record which is used to understand the initiation, growth and evolution of mega-Blowouts in alpine grasslands. Links between the morphodynamics and blowout-controlling factors are analysed. The expansion rates of the monitored Blowouts vary according to blowout area, with different parts of the Blowouts expanding at different rates. Generally longitudinal (downwind) mega-blowout expansion is greatest, with upwind headwall expansion via collapse being particularly significant. The growth of depositional lobes downwind of mega-Blowouts tends to be faster than growth of the deflation basins. Merging of adjacent Blowouts is one of the key mechanisms for mega-blowout development and extension. Sediment characteristics, wind erosion, water erosion, and freeze-thaw processes also all play a part in mega-blowout initiation and expansion. However, the relative roles that these factors play may differ according to a blowout's evolutionary stage. Due to an almost unlimited depth of sand, very low water table, and short grass vegetation cover, evolution into parabolic dunes is limited. A large proportion of sand patches and small Blowouts around the mega-Blowouts are still developing in the Gonghe basin proving that land degradation is still ongoing. Future work will focus on the feedback mechanisms between the blowout morphodynamics, climate change and anthropogenic impacts.
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Mega-Blowouts in Qinghai–Tibet Plateau: morphology, distribution and initiation.
Earth Surface Processes and Landforms, 2018Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
Zhibao Dong - One of the best experts on this subject based on the ideXlab platform.
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mega Blowouts in qinghai tibet plateau morphology distribution and initiation
Earth Surface Processes and Landforms, 2019Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
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Historical evolution and controls on mega-Blowouts in northeastern Qinghai-Tibetan Plateau, China
Geomorphology, 2019Co-Authors: Wanyin Luo, Patrick A. Hesp, Zhongyuan Wang, Mei Shao, Guangqiang Qian, Zhibao Dong, Mark D. BatemanAbstract:Abstract Mega-Blowouts are very large-scale deflationary landforms, formed by wind erosion. They are abundant in the Gonghe basin, northeast margin of the Qinghai-Tibet Plateau (QTP) and little is known about the evolution, dynamics or controls on the mega-blowout development. Here we report on mega-Blowouts' morphodynamic expansion rates based on 4 years of monitoring. Also presented is a remotely sensed longer-term (48 years) morphologic change record which is used to understand the initiation, growth and evolution of mega-Blowouts in alpine grasslands. Links between the morphodynamics and blowout-controlling factors are analysed. The expansion rates of the monitored Blowouts vary according to blowout area, with different parts of the Blowouts expanding at different rates. Generally longitudinal (downwind) mega-blowout expansion is greatest, with upwind headwall expansion via collapse being particularly significant. The growth of depositional lobes downwind of mega-Blowouts tends to be faster than growth of the deflation basins. Merging of adjacent Blowouts is one of the key mechanisms for mega-blowout development and extension. Sediment characteristics, wind erosion, water erosion, and freeze-thaw processes also all play a part in mega-blowout initiation and expansion. However, the relative roles that these factors play may differ according to a blowout's evolutionary stage. Due to an almost unlimited depth of sand, very low water table, and short grass vegetation cover, evolution into parabolic dunes is limited. A large proportion of sand patches and small Blowouts around the mega-Blowouts are still developing in the Gonghe basin proving that land degradation is still ongoing. Future work will focus on the feedback mechanisms between the blowout morphodynamics, climate change and anthropogenic impacts.
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Mega-Blowouts in Qinghai–Tibet Plateau: morphology, distribution and initiation.
Earth Surface Processes and Landforms, 2018Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
Guangqiang Qian - One of the best experts on this subject based on the ideXlab platform.
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mega Blowouts in qinghai tibet plateau morphology distribution and initiation
Earth Surface Processes and Landforms, 2019Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.
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Historical evolution and controls on mega-Blowouts in northeastern Qinghai-Tibetan Plateau, China
Geomorphology, 2019Co-Authors: Wanyin Luo, Patrick A. Hesp, Zhongyuan Wang, Mei Shao, Guangqiang Qian, Zhibao Dong, Mark D. BatemanAbstract:Abstract Mega-Blowouts are very large-scale deflationary landforms, formed by wind erosion. They are abundant in the Gonghe basin, northeast margin of the Qinghai-Tibet Plateau (QTP) and little is known about the evolution, dynamics or controls on the mega-blowout development. Here we report on mega-Blowouts' morphodynamic expansion rates based on 4 years of monitoring. Also presented is a remotely sensed longer-term (48 years) morphologic change record which is used to understand the initiation, growth and evolution of mega-Blowouts in alpine grasslands. Links between the morphodynamics and blowout-controlling factors are analysed. The expansion rates of the monitored Blowouts vary according to blowout area, with different parts of the Blowouts expanding at different rates. Generally longitudinal (downwind) mega-blowout expansion is greatest, with upwind headwall expansion via collapse being particularly significant. The growth of depositional lobes downwind of mega-Blowouts tends to be faster than growth of the deflation basins. Merging of adjacent Blowouts is one of the key mechanisms for mega-blowout development and extension. Sediment characteristics, wind erosion, water erosion, and freeze-thaw processes also all play a part in mega-blowout initiation and expansion. However, the relative roles that these factors play may differ according to a blowout's evolutionary stage. Due to an almost unlimited depth of sand, very low water table, and short grass vegetation cover, evolution into parabolic dunes is limited. A large proportion of sand patches and small Blowouts around the mega-Blowouts are still developing in the Gonghe basin proving that land degradation is still ongoing. Future work will focus on the feedback mechanisms between the blowout morphodynamics, climate change and anthropogenic impacts.
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Mega-Blowouts in Qinghai–Tibet Plateau: morphology, distribution and initiation.
Earth Surface Processes and Landforms, 2018Co-Authors: Wanyin Luo, Zhongyuan Wang, Guangqiang Qian, Zhibao Dong, Linghai Yang, Mark D. BatemanAbstract:Blowouts are wind‐eroded landforms that are widely distributed in the north‐eastern part in Qinghai–Tibet Plateau (QTP), China. These Blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of Blowouts are analysed and their initiation considered. Results show the QTP mega‐Blowouts are some of the largest in the world. The orientations of the trough shaped Blowouts are parallel with the prevailing wind, but the saucer and bowl‐shaped Blowouts are influenced by bi‐directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of Blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as Blowouts widen. Initial luminescence dating shows that Blowouts appear to have initiated ~100 to 500 years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega Blowouts for landscape degradation and human activities.