نتایج جستجو برای: little ice age synchronous period

تعداد نتایج: 1479041  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات و علوم انسانی 1391

abstract governing was disorganized for years, when mongols attached to iran and it caused to clearing way for interference of mongols princes. dispatching of holaku to the west culminated in establishing iilkhanan government. holakus activities in destruction of abbaasis government and activities which shows his staying in iran, made force oulus juji to comparison against iilkhanis gover...

Journal: :Quaternary 2023

The Late Holocene fossil pollen records from the Zemu glacier, located in Yabuk, North Sikkim, eastern Himalayas, effectively generated quantitative climate reconstructions based on transfer function model. model was developed by establishing a modern pollen–climate calibration set temperate alpine belt of Sikkim. A redundancy analysis carried out to detect pattern variation climatic variables ...

Journal: :The Holocene 2022

The term ‘Little Ice Age’ (LIA) is classically used to define a period of repeated and extensive glacier advances during the last millennium. In meanwhile, this also address relatively low temperatures between Medieval Climate Anomaly (MCA), or Warm Period, present-day warming. end LIA generally set mid late 1800s CE, however, published onset dates are more variable from 1200s 1500s. At Mont Mi...

2008
Thomas R. Lakeman John J. Clague Brian Menounos

Sharp-crested moraines, up to 120 m high and 9 km beyond Little Ice Age glacier limits, record a late Pleistocene advance of alpine glaciers in the Finlay River area in northern British Columbia. The moraines are regional in extent and record climatic deterioration near the end of the last glaciation. Several lateral moraines are crosscut by meltwater channels that record downwasting of trunk v...

Journal: :Arctic, Antarctic, and Alpine Research 2022

A reconstruction of the last 2,000 years BP environmental and oceanographic changes on western margin Spitsbergen was performed using a multidisciplinary approach including fossil assemblages diatoms, planktic benthic foraminifera calcareous nannofossils use geochemistry (X-ray fluorescence spectroscopy, X-ray diffraction). We identified two warm periods (2,000–1,600 1,300–700 BP) that were ass...

2012
Jinho Ahn Edward J. Brook Andreas Schmittner Karl Kreutz

[1] During the last glacial period atmospheric carbon dioxide and temperature in Antarctica varied in a similar fashion on millennial time scales, but previous work indicates that these changes were gradual. In a detailed analysis of one event we now find that approximately half of the CO2 increase that occurred during the 1500-year cold period between Dansgaard-Oeschger (DO) events 8 and 9 hap...

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