DOI: 10.34808/3afh-7h82
title: Hydrological predictors used for vegetation modelling in the lower Biebrza valley 1900-2099

description: This data set contains hydrological predictors used for vegetation modelling in the lower Biebrza valley, NE Poland.The predictors were obtained from simulations using integrated hydrological model - HydroGeoSphere, with the Hydraulic Mixing-Cell method.Forcing data for the model were Twentieth Century Reanalysis (20CR) data for the period 1900-2015 and an ensemble of ten EURO-CORDEX simulations for representative concentration pathways (RCP) 2.6, 4.5, and 8.5 in the 2006-2099 period. 
All files are in the R-data-set (.rds) format and the R software is required to open the files.R software can be downloaded from: https://cloud.r-project.org/To open an rds file use: readRDS function: https://stat.ethz.ch/R-manual/R-devel/library/base/html/readRDS.htmlTo save data from R to csv use: write.csv function: https://stat.ethz.ch/R-manual/R-devel/library/utils/html/write.table.html
Naming convention of the files is:(1) simulations forced using the EURO-CORDEX data - nameOfTheModel_rcpXX.rdsfor example IPSL-IPSL-CM5A-MR_rcp45.rds file contains predictors simulated by the HydroGeoSphere model forced with the IPSL-IPSL-CM5A-MR EURO-CORDEX simulation in the RCP 4.5.(2) simulation forced using 20CR data are contained in one file: 20CR.rds(3) vegetation maps - mapXXXX.rdswhere XXXX is the year of the map, for example map1960.rds contains the vegetation map from 1960.
Variables in the predictor .rds files:x - x geographical coordinate [m]y - y geographical coordinate [m]hyear - hydrological yeard_mean - Mean mixing degree [-]valley_pm_fixed_mean - Mean groundwater fractions [-]valley_snow2_mean - Mean snowmelt water fractions [-]valley_rainfall_mean - Mean rainfall fractionsupland_mean - Mean river water fractions [-]Depth_mean - Mean surface water depth [m]Sat_mean - Mean soil saturation [-]DGW_mean - Mean depth to groundwater table [m]Exchangeflux_mean - Mean exchange flux [m/s]Exchangeflux_meanExf - Mean groundwater discharge [m/s]Exchangeflux_meanInf - Mean surface water infiltration [m/s]Depth_lengthGt1cm - Number of days with water depth &gt; 1 cm [days]Depth_lengthGt10cm - Number of days with water depth &gt; 10 cm [days]rcp - representative concentration pathway (not in 20CR.rds)model - forcing data used in the HydroGeoSphere model
Variables in the vegetation maps .rds files:x - x geographical coordinate [m]y - y geographical coordinate [m]vege - coded vegetation type
Codes for vegetation types:2 - Magnocaricion, or tall sedges4 - Phragmition, or reed beds6 - sedge-moss
Vegetation mapse vere adapted from the following sources:1960 map - Oświt, J. (1965). Wyniki badań glebowo-florystycznych w dolinie Biebrzy dolnej. Manuscript. In Polish.1980 map - Palczynski, A. (1984). Natural differentiation of plant communities in relation to hydrological conditions of the Biebrza valley. Polish Ecological Studies, 10, 347–385.2000 map - Matuszkiewicz, A., Glowacka, I., Jakubowski, W., Kaminski, J., Myslinski, G., & Sobczynski, L.. (2000). Plan Ochrony Biebrzanskiego Parku Narodowego. Operat: Ochrona ladowych ekosystemow nielesnych. In Polish.
Geographical coordinates used in this data-set are in the PUWG 1992 sysetem (EPSG:2180)