Reply on RC2 DOI Creative Commons

Maria Magdalena Warter

Published: July 24, 2024

Abstract. Flow regimes are increasingly impacted by more extreme natural hazards of droughts and floods as a result climate change, compounded anthropogenic influences in both urban intensively managed rural catchments. However, the characteristics sustainable flow that needed to maintain or restore hydrologic, biogeochemical ecological function under rapid global change remain unclear contested. We conducted an inter-comparison two streams Berlin-Brandenburg region NE Germany, which mesoscale sub-catchments River Spree; intermittent agricultural stream (the Demnitzer Millcreek) heavily anthropogenically Panke). Through tracer-based analyses using stable water isotopes, we identified dominant physical processes (runoff sources, flowpaths age characteristics) sustaining streamflow over multiple years (2018–2023), including three major drought (2018–20, 2021–22). In stream, low flows regulated through artificially increased baseflow from treated waste effluent (by up 80 %), whilst storm drainage drives rapid, transient high runoff responses (up %) intense convective summer rainfall. The groundwater-dominated experienced extended no-flow periods during (⁓ 60 % year), only moderate coefficients (<10 winter along near-surface paths after heavy streams, groundwater dominance with young influence prevails, ages despite significant runoff, higher ones (⁓15 %). Urban cover resulted mean transit time ⁓4 compared arable land ⁓3 years, highlighting interlinkages landuse catchment properties on times. Understanding seasonal interannual variability generation hydrological template, has potential for assessing impacts sustainability future management, wider quality implications across environments.

Language: Английский

Groundwater-Surface water interactions research: Past trends and future directions DOI Creative Commons
Dylan J. Irvine, Kamini Singha, Barret L. Kurylyk

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 132061 - 132061

Published: Sept. 1, 2024

Language: Английский

Citations

11
Long-term drought effects on landscape water storage and recovery under contrasting landuses DOI Creative Commons
Shuxin Luo, Doerthe Tetzlaff, Aaron Smith

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 636, P. 131339 - 131339

Published: May 13, 2024

Recent extreme droughts in Europe have highlighted the urgent need to quantify their effects on ecohydrological fluxes (evapotranspiration, groundwater recharge) and water storage (mainly soil moisture) landscape. In response, we combined process-based (EcH2O-iso) machine learning (NARX) models estimate enduring of long-term drought project future short-term levels recovery potential under various precipitation scenarios. The work was undertaken at Demnitz Mill Creek (DMC), a 70 km2 mixed land use (arable crops forestry) catchment northern Germany. Our simulations indicated that years 2018 2022 had most marked impacts, leading substantial declines recharge (>40 %), evapotranspiration (up 16 %) moisture 6 %). Simulations may not recover next 15 if recent anomalies persist. These findings underscore requirement for enhancing resilience promoting integrated strategies managing resources optimise retention landscapes better respond drought.

Language: Английский

Citations

4
Storage Dynamics and Groundwater–Surface Water Interactions in a Drought Sensitive Lowland Catchment: Process‐Based Modelling as a Learning Tool DOI Creative Commons
Zhengtao Ying, Doerthe Tetzlaff, Jean‐Christophe Comte

et al.

Hydrological Processes, Journal Year: 2025, Volume and Issue: 39(5)

Published: May 1, 2025

ABSTRACT Groundwater is a key strategic water resource in times of drought, yet climate and land use change are increasing threats; this means that quantitative understanding groundwater dynamics lowland catchments becoming more urgent. Here, we used spatially distributed numerical model to simulate seasonal long‐term changes the spatio‐temporal patterns storage groundwater–surface interactions 66 km 2 Demnitzer Millcreek catchment (DMC) NE Germany. DMC experienced long period drought following hot, dry summer 2018, with stores depleted stream flows increasingly intermittent. The architecture parameterisation domain were based on observations, hydrogeological mapping geophysical surveys. Weekly simulations using single layer 50 × m grid 15 depth able broadly reproduce observed shallow glacial post‐glacial deposits across catchment. We showed most flow focused around topographic convergence zones fringing channel network permeable glaciofluvial deposits. Most generated by headwaters, which relatively young (i.e., ~5 years old). With potential evapotranspiration rates exceeding precipitation, balance very sensitive hydroclimate at DMC. past two decades have been dominated negative anomalies annual rainfall, causing general lowering tables persistent deficits. Spatio‐temporal recharge also strongly influenced vegetation cover, coniferous forests, particular, having high losses inhibit recharge. This underlines importance developing integrated management strategies Germany where expected further reduce increase temperatures decrease For an evidence base guide policy, need develop robust ways interface models ecohydrological better characterise impacts rechange groundwater‐dominated catchments.

Language: Английский

Citations

0
Impact of drought hazards on flow regimes in anthropogenically impacted streams: an isotopic perspective on climate stress DOI Creative Commons
Maria Magdalena Warter, Doerthe Tetzlaff, Christian Marx

et al.

Natural hazards and earth system sciences, Journal Year: 2024, Volume and Issue: 24(11), P. 3907 - 3924

Published: Nov. 14, 2024

Abstract. Flow regimes are increasingly impacted by more extreme natural hazards of droughts and floods as a result climate change, compounded anthropogenic influences in both urban intensively managed rural catchments. However, the characteristics sustainable flow that needed to maintain or restore hydrologic, biogeochemical ecological functions under rapid global change remain unclear contested. We conducted an intercomparison two streams Berlin–Brandenburg region northeast Germany, which mesoscale subcatchments Spree river: intermittent agricultural stream (the Demnitzer Millcreek) heavily anthropogenically Panke). Through tracer-based analyses using stable water isotopes, we identified dominant physical processes (runoff sources, flowpaths age characteristics) sustaining streamflow over multiple years (2018–2023), including three major drought (2018–2020, 2021–2022). In stream, low flows regulated through artificially increased baseflow from treated wastewater effluents (by up 80 %), whilst storm drainage drives rapid, transient high-flow runoff responses (up %) intense convective summer rainfall. The groundwater-dominated experienced extended no-flow periods during (∼ 60 % year) only moderate coefficients (< 10 winter along near-surface paths after heavy streams, groundwater dominance with young influence prevails, ages despite significant higher ones 15 %). Urban cover resulted mean transit time ∼ 4 compared arable land at 3 years, highlighting interlinkages use catchment properties on times. Understanding seasonal interannual variability generation hydrological template has potential assess impacts sustainability future management, wider quality implications across environments.

Language: Английский

Citations

1
Improving process-consistency of an ecohydrological model through inclusion of spatial patterns of satellite-derived land surface temperature DOI
Doris Duethmann, Martha C. Anderson, Marco Maneta

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 628, P. 130433 - 130433

Published: Nov. 14, 2023

Language: Английский

Citations

2
Impact of drought hazards on flow regimes in anthropogenically impacted streams: an isotopic perspective on climate stress DOI Creative Commons
Maria Magdalena Warter, Doerthe Tetzlaff, Christian Marx

et al.

Published: May 14, 2024

Abstract. Flow regimes are increasingly impacted by more extreme natural hazards of droughts and floods as a result climate change, compounded anthropogenic influences in both urban intensively managed rural catchments. However, the characteristics sustainable flow that needed to maintain or restore hydrologic, biogeochemical ecological function under rapid global change remain unclear contested. We conducted an inter-comparison two streams Berlin-Brandenburg region NE Germany, which mesoscale sub-catchments River Spree; intermittent agricultural stream (the Demnitzer Millcreek) heavily anthropogenically Panke). Through tracer-based analyses using stable water isotopes, we identified dominant physical processes (runoff sources, flowpaths age characteristics) sustaining streamflow over multiple years (2018–2023), including three major drought (2018–20, 2021–22). In stream, low flows regulated through artificially increased baseflow from treated waste effluent (by up 80 %), whilst storm drainage drives rapid, transient high runoff responses (up %) intense convective summer rainfall. The groundwater-dominated experienced extended no-flow periods during (⁓ 60 % year), only moderate coefficients (<10 winter along near-surface paths after heavy streams, groundwater dominance with young influence prevails, ages despite significant runoff, higher ones (⁓15 %). Urban cover resulted mean transit time ⁓4 compared arable land ⁓3 years, highlighting interlinkages landuse catchment properties on times. Understanding seasonal interannual variability generation hydrological template, has potential for assessing impacts sustainability future management, wider quality implications across environments.

Language: Английский

Citations

0
Reply on RC1 DOI Creative Commons

Maria Magdalena Warter

Published: July 24, 2024

Abstract. Flow regimes are increasingly impacted by more extreme natural hazards of droughts and floods as a result climate change, compounded anthropogenic influences in both urban intensively managed rural catchments. However, the characteristics sustainable flow that needed to maintain or restore hydrologic, biogeochemical ecological function under rapid global change remain unclear contested. We conducted an inter-comparison two streams Berlin-Brandenburg region NE Germany, which mesoscale sub-catchments River Spree; intermittent agricultural stream (the Demnitzer Millcreek) heavily anthropogenically Panke). Through tracer-based analyses using stable water isotopes, we identified dominant physical processes (runoff sources, flowpaths age characteristics) sustaining streamflow over multiple years (2018–2023), including three major drought (2018–20, 2021–22). In stream, low flows regulated through artificially increased baseflow from treated waste effluent (by up 80 %), whilst storm drainage drives rapid, transient high runoff responses (up %) intense convective summer rainfall. The groundwater-dominated experienced extended no-flow periods during (⁓ 60 % year), only moderate coefficients (<10 winter along near-surface paths after heavy streams, groundwater dominance with young influence prevails, ages despite significant runoff, higher ones (⁓15 %). Urban cover resulted mean transit time ⁓4 compared arable land ⁓3 years, highlighting interlinkages landuse catchment properties on times. Understanding seasonal interannual variability generation hydrological template, has potential for assessing impacts sustainability future management, wider quality implications across environments.

Language: Английский

Citations

0
Reply on RC2 DOI Creative Commons

Maria Magdalena Warter

Published: July 24, 2024

Abstract. Flow regimes are increasingly impacted by more extreme natural hazards of droughts and floods as a result climate change, compounded anthropogenic influences in both urban intensively managed rural catchments. However, the characteristics sustainable flow that needed to maintain or restore hydrologic, biogeochemical ecological function under rapid global change remain unclear contested. We conducted an inter-comparison two streams Berlin-Brandenburg region NE Germany, which mesoscale sub-catchments River Spree; intermittent agricultural stream (the Demnitzer Millcreek) heavily anthropogenically Panke). Through tracer-based analyses using stable water isotopes, we identified dominant physical processes (runoff sources, flowpaths age characteristics) sustaining streamflow over multiple years (2018–2023), including three major drought (2018–20, 2021–22). In stream, low flows regulated through artificially increased baseflow from treated waste effluent (by up 80 %), whilst storm drainage drives rapid, transient high runoff responses (up %) intense convective summer rainfall. The groundwater-dominated experienced extended no-flow periods during (⁓ 60 % year), only moderate coefficients (<10 winter along near-surface paths after heavy streams, groundwater dominance with young influence prevails, ages despite significant runoff, higher ones (⁓15 %). Urban cover resulted mean transit time ⁓4 compared arable land ⁓3 years, highlighting interlinkages landuse catchment properties on times. Understanding seasonal interannual variability generation hydrological template, has potential for assessing impacts sustainability future management, wider quality implications across environments.

Language: Английский

Citations

0