The Weierbach Experimental Catchment (WEC) hydrological and isotopic database

The Weierbach experimental catchment (0.45 km²) is the most instrumented and studied sub-catchment in the Alzette River basin in Luxembourg. Within the last decade, it has matured towards an interdisciplinary critical zone observatory focusing on a better understanding of hydrological and hydro-geochemical processes. Since 2009, the Weierbach has been extensively equipped for continuously monitoring water fluxes and physico-chemical parameters within different compartments of the critical zone. Additionally, these compartments are sampled fortnightly at several locations to analyze d¹⁸O and d²H isotopic composition of water including rainfall, throughfall, soil water, groundwater and streamwater. This link provide the entire database acquired from 2009 to 2019 for hydro-climatological parameters and water isotopic composition.

This repository contains a summary table containing site and monitoring meta data (Weierbach_site-description_2009-2019.xls).

Hydro-climatological data:

• Rainfall (2009-2019, 10- and 15-min interval, 1 site).
• Throughfall (2012-2019, fortnightly, 3 sites).
• Air temperature and air humidity (2012-2019, 15-min interval, 2 sites)
• Water discharge (2009-2019, 15-min interval, 4 sites).
• Groundwater depths (2009-2019, 15-min interval, 5 sites)
• Soil water content at 10, 20, 40 and 60 cm depths (2012-2019, 30-min interval, 7 sites).
• Soil temperature at 10, 20, 40 and 60 cm depths (2012-2019, 30-min interval, 7 sites).

d¹⁸O and d²H isotopic composition of water:

• Rain water (2009-2019, accumulated fortnightly).
• Throughfall (2009-2019, accumulated fortnightly).
• Stream water (2009-2019, fortnightly).
• Groundwater (2009-2019, fortnightly).
• Soil solutions at 20, 40, 60 and 100 cm depth (2009-2014, accumulated fortnightly).
• Riparian water at 10 cm depth (2010-2019, accumulated fortnightly).

Tritium measurements in water:

• Stream water (2011-2017, sporadically).