Paleoclimate of Southwestern China for the Past 50,000 yr Inferred from Lake Sediment Records

Hodell, David A; Brenner, Mark; Kanfoush, Sharon L.; Curtis, Jason H.; Stoner, J. S.; Xueliang, Song; Yuan, Weihua; Whitmore, Thomas J.

doi:10.1006/qres.1999.2072

Cited by 174 publications

(134 citation statements)

References 50 publications

(88 reference statements)

Supporting

Mentioning

112

Contrasting

Unclassified

Order By: Relevance

“…Accordingly, several studies suggest that the summer monsoon was strong during the late MIS 3, but except for the Tibetan Plateau not as strong as it was during optimal Holocene periods (Fang et al, 1999(Fang et al, , 2003Hodell et al, 1999;Wang et al, 1999a, b). Due to the persistent large Northern Hemisphere ice-volume the glacial boundary conditions might have strongly influenced the monsoon system during MIS 3 (deMenocal and Rind, 1993).…”

Section: Moisture Evolution During Late Mis 3 and Mismentioning

confidence: 99%

“…Due to the persistent large Northern Hemisphere ice-volume the glacial boundary conditions might have strongly influenced the monsoon system during MIS 3 (deMenocal and Rind, 1993). Therefore, monsoon activity possibly could not respond to insolation in a similar way as it did during the early Holocene (Hodell et al, 1999). Several results from the Tibetan Plateau, however, are at variance with a less active summer monsoon during late MIS 3.…”

Section: Moisture Evolution During Late Mis 3 and Mismentioning

confidence: 99%

See 1 more Smart Citation

Palaeo-moisture evolution in monsoonal Central Asia during the last 50,000 years

Herzschuh

2006

Quaternary Science Reviews

699

435

View full text Add to dashboard Cite

The late-Quaternary climate history of monsoonal Central Asia was inferred from 75 palaeoclimatic records which provide information about moisture conditions in the last 50 ka (or part of this period).Wet conditions occurred during middle and late Marine Isotope Stage 3, while the Last Glacial Maximum (LGM) was characterized by dry climate conditions in the region. A stepwise climate amelioration is suggested by the climate records following the LGM. Several climate signals of this period, which were reported from high-latitude ice core records, are preserved in archives from monsoonal Central Asia as well.During the early Holocene, high effective moisture was inferred from most records from the area dominated by the Indian Monsoon (e.g. the Tibetan Plateau) suggesting that Holocene optimal climate conditions occurred there during this period. In contrast, areas which are dominated by the South-East Asian monsoon (SE Monsoon) and the Westerlies (in north-western and north-central China, Mongolia) do not uniformly show an early Holocene climate optimum. For this area optimal conditions prevailed during the mid-Holocene. These apparent contradictions can possibly be explained by the regional uplift and descent of air masses in the Holocene. During the early Holocene, strengthened insolation possibly caused an enhanced low-level convergence over the Tibetan Plateau which led to the intensification of the summer monsoon. The strong air uplift caused intensified precipitation and air divergence in the upper troposphere over the Tibetan Plateau. The areas adjacent to the north therefore experienced an intensified descent of air masses and consequently increased aridity. The majority of the palaeoclimatic records suggest reduced effective moisture since the late Holocene in the region. r

show abstract

Section: Moisture Evolution During Late Mis 3 and Mismentioning

confidence: 99%

Section: Moisture Evolution During Late Mis 3 and Mismentioning

confidence: 99%

Palaeo-moisture evolution in monsoonal Central Asia during the last 50,000 years

Herzschuh

2006

Quaternary Science Reviews

699

435

View full text Add to dashboard Cite

show abstract

“…However, owing to the obvious differences in lake altitudes , the timing and amplitude of lake levele variation differed from different regions. Whitmore et al [50] and Hodell et al [51] studied the sediment records of Lake Xingyun and Qilu and found enhanced lake productivity after 12000 cal a BP and an intensified monsoon from 12000-8000 cal a BP. Increasing lake levels were found for Lake Erhai during the late glacial period, which resulted in the highest water stands being observed at 10300 cal a BP [52].…”

Section: Humid Region Lakes In the Yunnan-guizhou Plateaumentioning

confidence: 99%

Spatiotemporal variations of Chinese lakes and their driving mechanisms since the Last Glacial Maximum: A review and synthesis of lacustrine sediment archives

Shen

2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

In this article, the author provides the first synthesis and classification of available environment-indicating proxies for lacustrine sediment. A review of spatio-temporal variations in lakes from the Tibetan Plateau, the dry areas of Northwestern China, the Yunnan-Guizhou Plateau and the plains of Eastern China since the LGM is then provided. The driving mechanism for variations in lake processes and characteristics is also discussed based on various temporal scales. The author then proposes that future investigations be conducted to: (1) strengthen the study of theoretics and interpretation of environment-indicating proxies, (2) enhance the study of high-resolution time series and spatial variability of lake environment evolution, (3) provide more attention on the influence of human activities on lake environments, and (4) boost construction of the Quaternary lake database of China. Lakes are normally formed under various geological and geographical backgrounds. As a component of the terrestrial hydrosphere, lakes have close relationships with the atmosphere, biosphere and lithosphere, and serve as the connection between these systems. Once a lake is formed, it is influenced by a series of tectonic, climatic and anthropogenic factors. As a result, lacustrine evolutional processes usually involve geological, physical, chemical and biological processes and the interactions between them, and these processes are all documented by lacustrine sediment archives. Because lakes are widely distributed worldwide and normally undergo a long history of evolution, lacustrine sediment generally possesses a continuous record with highresolutions that provides abundant information regarding regional environmental and climatic variations that can be used in global change studies. Lacustrine sediment also contains information pertaining to human activities, since people tend to settle around lakes owing to the resources they provide. Synthesis and classification of proxies in lacustrine sediment describing environmental conditionsLakes generally have an independent watershed that serves as a source of water, sediment, biomass and chemicals, while the lake serves as a sink for all of these materials. Accordingly, lacustrine sediment can record all information regarding the source-sink interactions and mass balances including water balances (watershed rainfall and lake level stands), sediment balances (watershed erosion intensity and lake sedimentation rate), biological balances (watershed vegetation and lake biomass) and chemical balances (watershed soluble materials and lake water ion concentrations) [1].

show abstract

“…3 and 6c, k) 130°E 120°E 100°E 110°E 90°E 80°E 70°E 20°N 30°N 40°N 50°N 130°E 120°E 100°E 110°E 90°E 80°E 70°E 20°N 30°N 40°N 50°N 130°E 120°E 100°E 110°E 90°E 80°E 70°E 20°N 30°N 40°N 50°N 130°E 120°E 100°E 110°E 90°E 80°E 70°E 20°N 30°N 40°N 50°N 130°E 120°E 100°E 110°E 90°E 80°E 70°E 20°N 30°N 40°N 50°N 130°E 120°E 100°E 110°E 90°E 80°E 70°E 20°N 30°N 40°N 50°N 130°E 120°E 100°E 110°E 90°E 80°E 70°E 20°N 30°N 40°N 50°N 130°E 120°E 100°E 110°E 90°E 80°E the summer monsoon after the LGM which is also documented in marine and stalagmite records from across the Asian monsoonal regions (Hodell et al, 1999;Dykoski et al, 2005;Shen et al, 2006;Fleitmann et al, 2007).…”

Section: Spatial and Temporal Climate Patterns In Monsoonal Central Aunclassified

Asynchronous evolution of the Indian and East Asian Summer Monsoon indicated by Holocene moisture patterns in monsoonal central Asia

Wang

Liu

Herzschuh

2010

Earth-Science Reviews

289

111

View full text Add to dashboard Cite

a b s t r a c t a r t i c l e i n f oThe numerical meta-analysis of 92 proxy records (72 sites) of moisture and/or temperature change confirms earlier findings that the dominant trends of climatic evolution in monsoonal central Asia since the Last Glacial roughly parallel changes in Northern Hemisphere summer insolation, i.e. the period following the Last Glacial Maximum was characterized by dry and cold conditions until 15 cal. kyr BP, followed by a warm, wet period coincident with the Bølling/Allerød warm period and terminated by a cold, dry reversal during the Younger Dryas period. After an abrupt increase at the start of the Holocene, warm and wet conditions prevailed until ca. 4 cal. kyr BP when moisture levels and temperatures started to decrease. Ordination of moisture records reveals strong spatial heterogeneity in moisture evolution during the last 10 cal. kyr. The Indian Summer Monsoon (ISM) areas (northern India, Tibetan Plateau and southwest China) exhibit maximum wet conditions during the early Holocene, while many records from the area of the East Asian Summer Monsoon indicate relatively dry conditions, especially in north-central China where the maximum moisture levels occurred during the mid-Holocene. We assign such phenomena to strengthened Hadley Circulation centered over the Tibetan Plateau during the early Holocene which resulted in subsidence in the East Asian monsoonal regions leading to relatively dry conditions. Our observations of the asynchronous nature of the two Asian monsoon subsystems on millennial time scales have also been observed on annual time-scales as well as implied through the spatial analysis of vertical air motion patterns after strong ascending airflows over the Tibetan Plateau area that were calculated from NCEP/NCAR reanalysis data for the last 30 years. Analogous with the early Holocene, the enhancement of the ISM in a 'future warming world' will result in an increase in the asynchronous nature of the monsoon subsystems; this trend is already observed in the meteorological data from the last 15 years.

show abstract

Paleoclimate of Southwestern China for the Past 50,000 yr Inferred from Lake Sediment Records

Abstract: Quaternary Research 52 (1999) 369-380. doi:10.1006/qres.1999.2072Received by publisher: 1999-05-14Harvest Date: 2016-01-04 12:20:38DOI: 10.1006/qres.1999.2072Page Range: 369-38

Cited by 174 publications

References 50 publications

Palaeo-moisture evolution in monsoonal Central Asia during the last 50,000 years

Palaeo-moisture evolution in monsoonal Central Asia during the last 50,000 years

Spatiotemporal variations of Chinese lakes and their driving mechanisms since the Last Glacial Maximum: A review and synthesis of lacustrine sediment archives

Asynchronous evolution of the Indian and East Asian Summer Monsoon indicated by Holocene moisture patterns in monsoonal central Asia

Contact Info

Product

Resources

About