搜索结果: 1-9 共查到“大气科学 pollen”相关记录9条 . 查询时间(0.12 秒)
Springtime rains can be a surprising source of pollen, according to research supported by the National Science Foundation.University of Iowa researchers report that tree pollen fragments remain in the...
Pollen-based biome reconstructions for Latin America at 0, 6000 and 18 000 radiocarbon years ago
Latin America Pollen-based biome
2009/12/3
The biomisation method is used to reconstruct Latin American vegetation at 6000±500 and 18 000±1000 radiocarbon years before present (14C yr BP) from pollen data. Tests using modern pollen data from 3...
Terrestrial climate variability and seasonality changes in the Mediterranean region between 15 000 and 4000 years BP deduced from marine pollen records
Terrestrial climate marine pollen records seasonality changes
2009/12/3
Pollen-based climate reconstructions were performed on two high-resolution pollen marines cores from the Alboran and Aegean Seas in order to unravel the climatic variability in the coastal settings of...
Rapid climatic variability in the west Mediterranean during the last 25 000 years from high resolution pollen data
climatic variability High-temporal resolution pollen west Mediterranean
2009/12/3
High-temporal resolution pollen record from the Alboran Sea ODP Site 976, pollen-based quantitative climate reconstruction and biomisation show that changes of Mediterranean vegetation have been clear...
Central African biomes and forest succession stages derived from modern pollen data and plant functional types
Central African biomes plant functional types forest succession stages
2009/12/3
New detailed vegetation reconstructions are proposed in Atlantic Central Africa from a modern pollen data set derived from 199 sites (Cameroon, Gabon and Congo) including 131 new sites. In this study...
Late Glacial and Holocene changes in vegetation cover and climate in southern Siberia derived from a 15 kyr long pollen record from Lake Kotokel
Late Glacial vegetation cover Holocene changes
2009/12/3
In this study a radiocarbon-dated pollen record from Lake Kotokel (52°47´ N, 108°07´ E, 458 m a.s.l.) located in southern Siberia east of Lake Baikal was used to derive quantitative ch...
Climate reconstruction from pollen and δ13C records using inverse vegetation modeling – Implication for past and future climates
Climate reconstruction future climates
2009/12/3
An improved inverse vegetation model has been designed to better specify both temperature and precipitation estimates from vegetation descriptions. It is based on the BIOME4 vegetation model and uses...
Late Glacial to Holocene environments in the present-day coldest region of the Northern Hemisphere inferred from a pollen record of Lake Billyakh, Verkhoyansk Mts, NE Siberia
Holocene environments Northern Hemisphere coldest region
2009/12/3
In this study, a radiocarbon-dated pollen record from Lake Billyakh (65°17' N, 126°47' E; 340 m a.s.l.) in the Verkhoyansk Mountains was used to reconstruct vegetation and climate change since about 1...
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe：evidence from a NW Iberian margin pollen sequence
climatic variability Marine Isotope Stage SW Europe
2009/12/3
We present a new high-resolution marine pollen record from NW Iberian margin sediments (core MD03-2697) covering the interval between 340 000 and 270 000 years ago, a time period centred on Marine I...
