Andreas Kreuzer's research while affiliated with Universität Heidelberg and other places

Publications (6)

Article
Full-text available
We employed environmental tracers (3H-3He, SF6) in a study investigating the groundwater recharge in the North China Plain (NCP), a sedimentary aquifer system consisting of fluvial and alluvial river deposits near the city of Shijiazhuang. The 3H-3He dating method revealed reasonable results for the young groundwater with ages covering the range of...
Article
Full-text available
1] We employed environmental tracers (3 H‐ 3 He, noble gases, stable isotopes 18 O and 2 H) to study groundwater recharge and residence times in the strongly exploited North China Plain aquifer system in the area of Shijiazhuang, the capital of the Hebei province. Groundwater in the unconfined parts of the piedmont plain contains tritium down to de...
Article
The well-known temperature dependence of noble gas solubilities in water enables the determination of absolute paleotemperature records from radiocarbon dated groundwater. An advantage of the noble gas paleothermometer is that noble gas temperatures (NGTs) can directly be related to stable isotope ratios from the same groundwater archive in order t...
Article
Coupling between groundwater and surface water at Lake Willersinnweiher, a gravel pit lake in the Upper Rhine Graben without any surface in- or outflow, was investigated using both a groundwater model and the tracers 18O and SF6. Based on groundwater modeling, recharge and discharge areas around the lake as well as the residence time of the lake wa...

Citations

... Following Massoudieh et al. (2012), we consider CFC-12 degradation in Equation 7 as a first-order decay process with an uncertain decay half-life. While SF 6 contamination due to point industrial sources is not expected due to the remoteness of the study site, contamination can occur from in situ production within sedimentary aquifers (von Rohden et al., 2010). We consider possible SF 6 contamination in Equation 7 as an uncertain percent increase relative to the observed SF 6 concentration (described below). ...
... Groundwater system in the NCP has attracted many research interests from different aspects. Rohden et al. (2009Rohden et al. ( , 2010 and Yuan et al. (2011Yuan et al. ( , 2012Yuan et al. ( , 2013 researched the recharge of the groundwater system. Moiwo et al. (2010), Zhuang et al. (2011), Cao et al. (2013) clarified that construction of reservoirs and over-pumping led to waterlevel decline and simulated groundwater depletion. ...
... Two mountain systems, named the Yan Mountains and Taihang Mountains, lie in the northern and western margins of the NCP, respectively. Because the NCP is located in the East Asian temperate monsoon climate zone, it has a typical temperate and monsoonal climate characterized by dry and windy winters and hot and rainy summers (Kreuzer et al. 2004). The long-term average annual air temperature ranges from 88 to 158C (Chen 2017), the frost-free period is approximately 200 days, and the total annual sunshine duration is 1910.6-2982.9 ...
... Due to huge hydraulic gradient from the center to the edge, the lateral flow may contribute large to groundwater in noncentral zone. Different from the confined water (Von Rohden et al., 2010), δ 18 O values of unconfined groundwater in the loess aquifer basically had no change with increasing groundwater ages (Fig. 5f), indicating that groundwater is a mixture of young water from vertical recharge and old water from lateral flow. As such, actual recharge rates calculated by CMB should be gradually overestimated along the flow direction. ...
... Lake Willersinnweiher is situated in the plain of the Upper Rhine Graben (Germany), northwest of Ludwigshafen (49.499950°N; 8.397138°E) and covers an area of 17 ha ( Figure 2). It is one of four gravel pit lakes and has neither a surface inflow nor outflow, thereby making inflowing groundwater its main source of water and solutes (Wollschläger et al., 2007). Lake Willersinnweiher is composed of a shallower northeastern basin with a maximum water depth of 14 m and a deeper southwestern basin with a maximum water depth of 20 m. ...
... However, deep groundwater was mostly recharged thousands of years ago. In spite of their long residence time, deep groundwater still retains the isotopic footprint of precipitations that recharged the aquifer in the past (Currell et al., 2010;Kreuzer et al., 2009). ...