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- W4387171576 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Modern and fossil pollen data are widely used in paleoenvironmental research to characterise past environmental changes in a given location. However, their discrete and discontinuous nature can limit the inferences that can be made from them. In contrasts, deriving continuous spatial maps of the pollen presence from point-based datasets would enable more robust regional characterization of such past changes. To address this problem, we propose a comprehensive collection of European pollen presence maps including 194 pollen taxa derived from the interpolation of pollen data from the Eurasian Modern Pollen Database (EMPD v2) restricted to the Euro-Mediterranean Basin. To do so, we developed an automatic Kriging-based interpolation workflow to select an optimal geostatistical model describing the spatial variability for each taxon. The output of the interpolation model consists in a series of multivariate predictive maps of Europe at 25-km scale, showing the occurrence probability of pollen taxa, the predicted presence based on diverse probability thresholds, and the interpolation uncertainty for each taxon. Visual inspections of the maps and systematic cross-validation tests showed that the ensemble of predictions is reliable even in data-scarce regions, with a relatively low uncertainty, and robust to complex and non-stationary pollen distributions. The maps, freely distributed as GeoTIFF files, are proposed as a ready-to-use tool for spatial paleoenvironmental characterization. Since the interpolation model only uses the coordinates of the observation to spatialise the data, similar maps could also be derived for fossil pollen records, thus enabling the spatial characterization of past changes, and possibly, their subsequent use for quantitative paleoclimate reconstructions." @default.
- W4387171576 created "2023-09-30" @default.
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- W4387171576 date "2023-09-29" @default.
- W4387171576 modified "2023-09-30" @default.
- W4387171576 title "Reply on RC2" @default.
- W4387171576 doi "https://doi.org/10.5194/essd-2022-364-ac3" @default.
- W4387171576 hasPublicationYear "2023" @default.
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