A taxonomically harmonized and temporally standardized fossil pollen dataset from Siberia covering the last 40 kyr
<p>Pollen records from Siberia are mostly absent in global or Northern Hemisphere synthesis works. Here we present a taxonomically harmonized and temporally standardized pollen dataset that was synthesized using 173 palynological records from Siberia and adjacent areas (northeastern Asia, 42–7...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2020-01-01
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| Series: | Earth System Science Data |
| Online Access: | https://www.earth-syst-sci-data.net/12/119/2020/essd-12-119-2020.pdf |
| Summary: | <p>Pollen records from Siberia are mostly absent in global or Northern
Hemisphere synthesis works. Here we present a taxonomically harmonized and
temporally standardized pollen dataset that was synthesized using 173
palynological records from Siberia and adjacent areas (northeastern Asia,
42–75<span class="inline-formula"><sup>∘</sup></span> N, 50–180<span class="inline-formula"><sup>∘</sup></span> E).
Pollen data were taxonomically harmonized, i.e. the original 437 taxa
were assigned to 106 combined pollen taxa. Age–depth models for all records
were revised by applying a constant Bayesian age–depth modelling routine.
The pollen dataset is available as count data and percentage data in a table
format (taxa vs. samples), with age information for each sample. The dataset
has relatively few sites covering the last glacial period between 40 and
11.5 ka (calibrated thousands of years before 1950 CE)
particularly from the central and western part of the study area. In the
Holocene period, the dataset has many sites from most of the area, with the exception of the
central part of Siberia. Of the 173 pollen records, 81 % of pollen counts
were downloaded from open databases (GPD, EPD, PANGAEA) and 10 % were
contributions by the original data gatherers, while a few were<span id="page120"/> digitized
from publications. Most of the pollen records originate from peatlands
(48 %) and lake sediments (33 %). Most of the records (83 %) have <span class="inline-formula">≥3</span> dates, allowing the establishment of reliable chronologies. The dataset
can be used for various purposes, including pollen data mapping (example maps
for <i>Larix</i> at selected time slices are shown) as well as quantitative climate and
vegetation reconstructions. The datasets for pollen counts and pollen
percentages are available at <a href="https://doi.org/10.1594/PANGAEA.898616">https://doi.org/10.1594/PANGAEA.898616</a>
(Cao et al., 2019a), also including the site information, data source,
original publication, dating data, and the plant functional type for each
pollen taxa.</p> |
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| ISSN: | 1866-3508 1866-3516 |