کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6446091 | 1640828 | 2014 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Palaeoclimate records 60-8 ka in the Austrian and Swiss Alps and their forelands
ترجمه فارسی عنوان
پرونده های پائئوسکلیمیت 60-8 کاپ در آلپ اتریش و سوئیس و سرزمین هایشان هستند
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کلمات کلیدی
LPSNGRIPLoess-palaeosol sequenceIRSLLIAOSLaccumulation area ratioAARAMSLGMLast glacial maximum - آخرین حداکثر یخبندانAustria - اتریشequilibrium line altitude - ارتفاع خط تعادلaccelerator mass spectrometry - اسپکترومتری جرم شتاب دهندهUltraviolet - اشعه فرابنفشELA - اوClimate reconstruction - بازسازی اقلیمیquaternary climate change - تغییر اقلیم چهارمAlps - رشته کوههای آلپ، کوه های آلپGIS - سامانه اطلاعات جغرافیاییSwitzerland - سوئیسLittle Ice Age - عصر یخبندان کوچکOSL, Optically stimulated luminescence - لومینسانس تحریک شده با نور، لومینسانس برانگیخته نوریMarine isotope stage - مرحله ایزوتوپ دریاییPalaeoclimate - پائئوسکلیماتmis - چیGRIP - گریپ
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
The European Alps and their forelands provide a range of different archives and climate proxies for developing climate records in the time interval 60-8 thousand years (ka) ago. We review quantitative and semi-quantitative approaches for reconstructing climatic variables in the Austrian and Swiss sector of the Alpine region within this time interval. Available quantitative to semi-quantitative climate records in this region are mainly based on fossil assemblages of biota such as chironomids, cladocerans, coleopterans, diatoms and pollen preserved in lake sediments and peat, the analysis of oxygen isotopes in speleothems and lake sediment records, the reconstruction of past variations in treeline altitude, the reconstruction of past equilibrium line altitude and extent of glaciers based on geomorphological evidence, and the interpretation of past soil formation processes, dust deposition and permafrost as apparent in loess-palaeosol sequences. Palaeoclimate reconstructions in the Alpine region are affected by dating uncertainties increasing with age, the fragmentary nature of most of the available records, which typically only incorporate a fraction of the time interval of interest, and the limited replication of records within and between regions. Furthermore, there have been few attempts to cross-validate different approaches across this time interval to confirm reconstructed patterns of climatic change by several independent lines of evidence. Based on our review we identify a number of developments that would provide major advances for palaeoclimate reconstruction for the period 60-8 ka in the Alps and their forelands. These include (1) the compilation of individual, fragmentary records to longer and continuous reconstructions, (2) replication of climate records and the development of regional reconstructions for different parts of the Alps, (3) the cross-validation of different proxy-types and approaches, and (4) the reconstruction of past variations in climate gradients across the Alps and their forelands. Furthermore, the development of downscaled climate model runs for the Alpine region 60-8 ka, and of forward modelling approaches for climate proxies would expand the opportunities for quantitative assessments of climatic conditions in Europe within this time-interval.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary Science Reviews - Volume 106, 15 December 2014, Pages 186-205
Journal: Quaternary Science Reviews - Volume 106, 15 December 2014, Pages 186-205
نویسندگان
Oliver Heiri, Karin A. Koinig, Christoph Spötl, Sam Barrett, Achim Brauer, Ruth Drescher-Schneider, Dorian Gaar, Susan Ivy-Ochs, Hanns Kerschner, Marc Luetscher, Andrew Moran, Kurt Nicolussi, Frank Preusser, Roland Schmidt, Philippe Schoeneich,