A Late Miocene climate model simulation with ECHAM4/ML and its quantitative validation with terrestrial proxy data

Micheels, A.; Bruch, Angela A; Uhl, Dieter; Utescher, Torsten; Mosbrugger, Volker

doi:10.1016/j.palaeo.2007.03.042

Cited by 101 publications

(81 citation statements)

References 65 publications

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“…The setup for model runs were as follows: the resolution used was T31L19 (3.75°) for the atmosphere and GR30L40 (Ϸ3°) for the ocean. We also consider a proxy-based reconstruction for the palaeovegetation (see 52). The boundary conditions (e.g., the paleorography, paleovegetation) refer to the Late Miocene, and are based on previous (e.g., 39, 52) model runs.…”

Section: Methodsmentioning

confidence: 99%

Distribution history and climatic controls of the Late Miocene Pikermian chronofauna

Eronen¹,

Ataabadi²,

Micheels

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

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161

111

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The Late Miocene development of faunas and environments in western Eurasia is well known, but the climatic and environmental processes that controlled its details are incompletely understood. Here we map the rise and fall of the classic Pikermian fossil mammal chronofauna between 12 and 4.2 Ma, using genus-level faunal similarity between localities. To directly relate land mammal community evolution to environmental change, we use the hypsodonty paleoprecipitation proxy and paleoclimate modeling. fossil mammals ͉ paleoclimate ͉ Pikermi ͉ similarity index

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Section: Methodsmentioning

confidence: 99%

Distribution history and climatic controls of the Late Miocene Pikermian chronofauna

Eronen¹,

Ataabadi²,

Micheels

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

161

111

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“…A climate simulation of the middle Miocene (20-14 Ma) [61,62] showed that the relatively low topography at that time had certain contribution to the formation of climatic optimum period, but the effects of elevated atmospheric CO 2 concentration and other factors such as feedbacks of ocean and land were also necessary. In the simulation of the late Miocene (11-5 Ma) with the TP topography being set as a half [63] or 70% [64] of its current height, the feature of the overall weak Asia summer monsoon was observed. In the Pliocene (~3 Ma), a period closer to modern time, certain degree of changes in the plateau topography was still considered in the climate simulation [65].…”

Section: Numerical Simulationsmentioning

confidence: 99%

Influence of the Tibetan Plateau uplift on the Asian monsoon-arid environment evolution

2013

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As one of the most important geological events in Cenozoic era, the uplift of the Tibetan Plateau (TP) has had profound influences on the Asian and global climate and environment evolution. During the past four decades, many scholars from China and abroad have studied climatic and environmental effects of the TP uplift by using a variety of geological records and paleoclimate numerical simulations. The existing research results enrich our understanding of the mechanisms of Asian monsoon changes and interior aridification, but so far there are still a lot of issues that need to be thought deeply and investigated further. This paper attempts to review the research on the influence of the TP uplift on the Asian monsoon-arid environment, summarize three types of numerical simulations including bulk-plateau uplift, phased uplift and sub-regional uplift, and especially to analyze regional differences in responses of climate and environment to different forms of tectonic uplifts. From previous modeling results, the land-sea distribution and the Himalayan uplift may have a large effect in the establishment and development of the South Asian monsoon. However, the formation and evolution of the monsoon in northern East Asia, the intensified dryness north of the TP and enhanced Asian dust cycle may be more closely related to the uplift of the main body, especially the northern part of the TP. In this review, we also discuss relative roles of the TP uplift and other impact factors, origins of the South Asian monsoon and East Asian monsoon, feedback effects and nonlinear responses of climatic and environmental changes to the plateau uplift. Finally, we make comparisons between numerical simulations and geological records, discuss their uncertainties, and highlight some problems worthy of further studying.Tibetan Plateau, tectonic uplift, Asian monsoon, inland aridity, environmental evolution, geological record, numerical simulation Citation:Liu X D, Dong B W.

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“…As a consequence the sea retreated from most of the foreland basin and a terrestrial environment was established in which rivers flowed from the uplifting Hajar Mountains to form an aerially extensive bajada more than 100km from the mountain front. The quantity of clastic sediment in these alluvial fans is principally due to a late Miocene hot and humid climate, with rainfall estimated as about 300mm per annum (Micheels, 2007) a figure likely to have been far exceeded in the mountains because of orographic effects. In the western Emirates and Qatar, marine limestones and sabkha sandstones of the Dam and Shuwaihat Formations were laid down on the cratonic side of the foreland basin.…”

Section: Regional Geological and Geomorphological Settingmentioning

confidence: 99%

Engineering geological characterisation of the Barzaman Formation, with reference to coastal Dubai, UAE

Macklin

Ellison

Manning

et al. 2011

Bull Eng Geol Environ

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This paper describes, from field exposures, temporary excavations and borehole core, the pedogenically altered fluvial deposits found in the UAE termed the Barzaman Formation. This formation comprises a sequence of rocks dominated by variably cemented conglomerates thought to be middle Miocene to Pliocene in age. The sequence is interpreted as an alluvial fan succession (or "bajada") laid down in response to uplift and erosion of the Hajar Mountains. A ground model for this formation is described to explain the distinct lithological features of the formation, comprising terrestrial fluvial and alluvial plain deposits that have been modified by cementation and dolomitisation, duricrust formation and pedogenic processes during arid periods over repeated climatic cycles. Four principle lithologies thus typically occur as a rhythmic alternation of a basal conglomerate (composed predominantly of clasts of ophiolite and chert) overlain by an irregular bed of white conglomerate and "calcisiltite" and passing upwards into a pale grey to green clay and siltstone "breccia". The white conglomerate and calcisiltite largely represent deposits of dolomite-palygorskite duricrust. The well established Clarke & Walker (1979) descriptive scheme currently used for describing the formation is reviewed and a simple visual descriptive lithological classification proposed. The classification is described in terms of the three principal lithological components visible in hand specimen: mottled white calcisiltite matrix/cement, palygorskite rich marl and clasts derived from the Oman Mountains (gabbro, chert and weathered ultramafic rock). Data on the mineralogy and microstructure of the rock constituents is also presented and some implications for geotechnical characterisation of the formation briefly discussed.

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A Late Miocene climate model simulation with ECHAM4/ML and its quantitative validation with terrestrial proxy data

Cited by 101 publications

References 65 publications

Distribution history and climatic controls of the Late Miocene Pikermian chronofauna

Distribution history and climatic controls of the Late Miocene Pikermian chronofauna

Influence of the Tibetan Plateau uplift on the Asian monsoon-arid environment evolution

Engineering geological characterisation of the Barzaman Formation, with reference to coastal Dubai, UAE

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