A multi-model analysis of glacier equilibrium line altitudes in western China during the last glacial maximum

Jiang, Dabang; Liu, Yeyi; Lang, Xianmei

doi:10.1007/s11430-018-9266-8

Cited by 15 publications

(15 citation statements)

References 39 publications

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“…Estimated summer temperature decreases of 3-4 °C across the Tibetan Plateau during the LGM have been suggested by Miehe et al (2010), based on biological evidence from alpine steppes. Jiang et al (2019) found that the LGM summer temperature was 4-8 °C lower than today's across the Tibetan Plateau, using nine Coupled Model Intercomparison Project Phase 5 (CMIP5) models.…”

Section: Paleoclimatic Implications For the Glacier Modeling Resultsmentioning

confidence: 99%

“…The modeled present‐day ELA is ~4900 m asl, matching well with the modern ELA of the Hailuoguo Glacier on the southeastern Tibetan Plateau (Shi et al ., 1997). The calculated ELA depressions during the LGM–LG range from 900 to 1100 m asl, consistent with the reconstructed ELA reduction of 1000~1200 m at the southern margins of the Tibetan Plateau during the period 16–32 ka (Shi et al ., 1997; Jiang et al ., 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Estimated summer temperature decreases of 3–4 °C across the Tibetan Plateau during the LGM have been suggested by Miehe et al (2010), based on biological evidence from alpine steppes. Jiang et al (2019) found that the LGM summer temperature was 4–8 °C lower than today's across the Tibetan Plateau, using nine Coupled Model Intercomparison Project Phase 5 (CMIP5) models. LGM summer temperature decreases of 3–4 °C on the southern Tibetan Plateau were suggested by Schmidt et al (2011), using biogeographical and phylogenetic data from ground beetles and the juniper tree line.…”

Section: Discussionmentioning

confidence: 99%

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Glacial fluctuations during the Last Glacial Maximum and Lateglacial in the Zhuxi and Songlong valleys, eastern Nyainqêntanglha Range, southeastern Tibet

Xie

Yang

Zhou

et al. 2023

J Quaternary Science

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This study outlines the paleoglacial history and paleoclimatic conditions that were present during the Last Glacial Maximum (LGM) and Lateglacial (LG) in the Songlong and Zhuxi valleys in the eastern Nyainqêntanglha Range, southeastern Tibet. Two sets of moraines were identified at the valley mouths, and were dated using cosmogenic 10Be exposure and optically stimulated luminescence (OSL) dating. The ages suggest that two glaciations occurred at ~20–21 and ~14–16 ka, respectively, coinciding with the LGM and LG. Using glacier–climate modeling, temperature drops were calculated to have ranged from 6.3 to 7.8 °C during the LGM–LG, with precipitation being 40–60% of the present‐day value. The results in the modeled domain appear generally consistent with other climatic records from the Tibetan Plateau. Glacial advances in monsoon‐dominated southeastern Tibet during the LGM–LG were probably driven by low temperatures rather than by high precipitation, which was usually produced by an enhanced Indian Summer Monsoon during periods of climatic warming.

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Section: Paleoclimatic Implications For the Glacier Modeling Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Glacial fluctuations during the Last Glacial Maximum and Lateglacial in the Zhuxi and Songlong valleys, eastern Nyainqêntanglha Range, southeastern Tibet

Xie

Yang

Zhou

et al. 2023

J Quaternary Science

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“…Pei's study 20 of periglacial phenomena of the Late Pleistocene in Huangshan, Harbin, Heilongjiang Province in Northeast China initiated past permafrost research in China. Since then, several types of past periglacial phenomena have been identified on the southern Ordos Plateau and around Datong, northern Shanxi Province in North China 14,21–25 . Relict periglacial features have been reported from the Qinghai‐Tibet Plateau in Southwest China, 6,26–28 Hexi Corridor, Tengri Desert, 29,30 and eastern deserts, 31 together with new observations from the Qilian Mountains and Northeast China 6,19,27,32 .…”

Section: Introductionmentioning

confidence: 94%

“…Since then, several types of past periglacial phenomena have been identified on the southern Ordos Plateau and around Datong, northern Shanxi Province in North China. 14,[21][22][23][24][25] Relict periglacial features have been reported from the Qinghai-Tibet Plateau in Southwest China, 6,[26][27][28] Hexi Corridor, Tengri Desert, 29,30 and eastern deserts, 31 together with new observations from the Qilian Mountains and Northeast China. 6,19,27,32 Overall, these studies have substantially advanced the knowledge of past permafrost and paleoclimate in China, allowing reconstruction of the periglacial environment and the southern/lower limit of permafrost.…”

Section: Introductionmentioning

confidence: 99%

Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications

Jin

French

et al. 2020

Permafrost & Periglacial

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During the last 50 ka, cryogenic wedges on the Ordos Plateau formed during three major periods: (i) early local Last Glaciation, ca. 50 ka BP; (iii) local Last Permafrost Maximum(local LPM), 25-19 ka BP; and (v) post-local LPM, 16-9 ka BP. Cryoturbations mainly formed in the following periods: (ii) pre-local LPM, 45-30 ka BP and (iv) 20 ka BP. The coldest periods with well-developed permafrost (i and iii) were most conducive for forming cryogenic wedges. The following periods of warming climate and degrading permafrost favored the formation of cryoturbations. During the local LPM, sand wedges and polygons were well developed and widely distributed on the Ordos Plateau when mean annual air temperatures (MAATs) were approximately 12 C lower than that at present. At 30 ka BP, MAAT was 6-7 C lower than that at present. Paleoclimate conditions on the Ordos Plateau were reconstructed since 50 ka BP as follows: cold (ca. 50 ka BP) ! cool (45-30 ka BP) ! very cold (25-19 ka BP) ! cool (19-9 ka BP) ! intermittent warming until the present day. The amount of precipitation fluctuated, but with a general trend of drying since 50 ka BP. Under the next generally warming climate (after 9 ka BP), permafrost gradually degraded and eventually disappeared from the Ordos Plateau.

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Glacier changes since the Last Glacial Maximum on two slopes of Mt Noijin Kang‐Sang, Southern Tibetan Plateau

Liu,

Li,

et al. 2023

J Quaternary Science

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In recent decades, most glaciers have been melting, thinning and retreating globally in response to continuously increasing temperatures. We simulated ice thicknesses and volumes on the east and west slopes of Mt Noijin Kang‐Sang, Southern Tibetan Plateau (TP), since the Last Glacial Maximum (LGM), using a glacial flowline model. The simulated average ice thicknesses during the LGM and Lateglacial (LG), Early Holocene, Neoglacial and the Little Ice Age (LIA) periods were 1.4, 1.3, 1.1 and 1.2 times greater than those of modern glaciers in the Gangbu (eastern slope) and western valleys, respectively. In the Gangbu Valley, areas from the LGM‐LG to LIA periods were 1.7, 1.5, 1.4 and 1.2 times greater than the modern glacier area, and the volume expansion indexes were 2.2, 1.9, 1.5 and 1.4. In the western valleys, the area expansion indexes were 2.2, 1.9, 1.5 and 1.4 times greater than the modern glacier, and volumes were 5.4, 4.4, 3.4 and 2.9 times greater, respectively. Glaciers in the western valleys retreated more extensively than those on the eastern slopes of Gangbu Valley after the LGM‐LG, probably due to the smaller glaciers on the leeward western slopes with lower elevations. Equilibrium‐line altitudes dropped ~425 m in Gangbu Valley and ~385 m in the western valleys during the LGM‐LG, corresponding to a 3.8–4.1 °C temperature decrease in this region, which was consistent with cooling on the central Tibetan Plateau, but lower than cooling at the south‐eastern edge of the Tibetan Plateau.

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A multi-model analysis of glacier equilibrium line altitudes in western China during the last glacial maximum

Cited by 15 publications

References 39 publications

Glacial fluctuations during the Last Glacial Maximum and Lateglacial in the Zhuxi and Songlong valleys, eastern Nyainqêntanglha Range, southeastern Tibet

Glacial fluctuations during the Last Glacial Maximum and Lateglacial in the Zhuxi and Songlong valleys, eastern Nyainqêntanglha Range, southeastern Tibet

Cryogenic wedges and cryoturbations on the Ordos Plateau in North China since 50 ka BP and their paleoenvironmental implications

Glacier changes since the Last Glacial Maximum on two slopes of Mt Noijin Kang‐Sang, Southern Tibetan Plateau

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