A taxonomically harmonized and temporally standardized fossil pollen data from Siberia covering the last 40 ka: overview and references

• Main Authors: Cao, Xianyong, Tian, Fang, Andreev, Andrei A, Anderson, Patricia M, Lozhkin, Anatoly V, Bezrukova, Elena V, Ni, Jian, Rudaya, Natalia, Stobbe, Astrid, Wieczorek, Mareike, Herzschuh, Ulrike
• Format: Dataset
• Language: English
• Published: PANGAEA 2019
• Subjects: 11-CH-12A; 880; Adycha_River; Adycha River; Age; maximum/old; minimum/young; Akademik Boris Petrov; ALUT; Alut Lake; AMBA; Amba River; AMGUEMA1; AMGUEMA2; Amguema River 1; Amguema River 2; ARAKAM; Arakamchechen Island; ARAL86; AWI_Envi; AWI Arctic Land Expedition; BAIDARA; Russia; Baikal_Lake-CON01-603-5; Baikal_Lake-CON01-605-3; Baikal_Lake-CON01-605-5; Baikal Lake-CON01-603-5; Baikal Lake-CON01-605-3; Baikal Lake-CON01-605-5; Barbarina_Tumsa; Berelyekh River; BETENK; Betenkyos Adycha river; Big_Yarovoe_Lake_2008-3; Big Yarovoe Lake; BLOSSOM; Blossom Cape; BOGUDA; Bolshaya Kuobakh-Baga River; Bolshaya Kuropatochya River; Bolshaya Kuropatochya River P7; Bolshoe Eravnoe Lake; BP99; BP99-04/06; BUGRIST; Bugristoe; Adycha; Alut; Amguema; Arctic; Kuobakh-Baga; Polarforschung; Siberia
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.898614; https://doi.org/10.1594/PANGAEA.898614

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 (northeast Asia, 50°180°E and 42°75°N). Pollen data were taxonomically harmonized, that is the original 437 taxa were transformed 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 cal ka BP (calibrated thousand years before present 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 except 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 of the original data gatherers, while a few were digitized from publications. Most of the pollen records originate from peatlands (48%) and lake sediments (33%). Most of the records (83%) have ≥3 dates allowing the establishment of reliable chronologies. The dataset can be used for various purposes including pollen data mapping (example maps for Larix at selected time-slices are shown) as well as quantitative climate and vegetation reconstructions.