A late Quaternary pollen dataset from eastern continental Asia for vegetation and climate reconstructions: Set up and evaluation

• A new fossil pollen dataset was established from eastern continental Asia.
• It includes 271 pollen records interpolated to 500-year time slices since 22 cal ka.
• We access the quality of the pollen data set.
• We present maps of temporal and spatial changes for 12 common pollen taxa.

A total of 271 pollen records were selected from a large collection of both raw and digitized pollen spectra from eastern continental Asia (70°−135°E and 18°−55°N). Following pollen percentage recalculations, taxonomic homogenization, and age–depth model revision, the pollen spectra were interpolated at a 500-year resolution and a taxonomically harmonized and temporally standardized fossil pollen dataset established with 226 pollen taxa, covering the last 22 cal ka. Of the 271 pollen records, 85% were published since 1990, with reliable chronologies and high temporal resolutions; of these, 50% have raw data with complete pollen assemblages, ensuring the quality of this dataset. The pollen records available for each 500-year time slice are well distributed over all main vegetation types and climatic zones of the study area, making their pollen spectra suitable for paleovegetation and paleoclimate research. Such a dataset can be used as an example for the development of similar datasets for other regions of the world.