Geographie, Hydrologie
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Spatio‐temporal patterns in degradation and restoration of gravel bars along Alpine rivers
(River Research and Applications, 2022-01-05)Braided reaches were common along near‐natural Alpine rivers, and the associated habitat dynamics supported plant and animal species specialized on early‐successional stages. The extensive riparian zones could mitigate ... -
Investigation of subsurface connectivity and subsurface stormflow in low mountain ranges—Findings from the two research catchments Obere Brachtpe and Bohlmicke (Germany)
(Hydrological Processes, 2022-02-12)The two small research catchments Obere Brachtpe (2.6 km2; 50.989986, 7.752013) and Bohlmicke (1 km2, 51.079319, 7.892988) are located in the Rhenish Massif, a low mountain range in Germany. Land use in both catchments is ... -
Fuzzy map comparisons enable objective hydro‐morphodynamic model validation
; ; ; (Earth Surface Processes and Landforms, 2021-11-18)
Numerical modeling represents a state‐of‐the‐art technique to simulate hydro‐morphodynamic processes in river ecosystems. Numerical models are often validated based on observed topographic change in the form of pixel ... -
Critical Zone Response Times and Water Age Relationships Under Variable Catchment Wetness States: Insights Using a Tracer‐Aided Ecohydrological Model
; ; ; (Water Resources Research, 2022-04-26)
The dynamic relationships between water flux and storage, together with the associated water ages and speed of hydrological responses (as proxies for velocity and celerity respectively) are fundamental to understanding how ... -
Estimates of water partitioning in complex urban landscapes with isotope‐aided ecohydrological modelling
; ; ; ; ; ; (Hydrological Processes, 2022-03-10)
Urban green space is increasingly viewed as essential infrastructure to build resilience to climate change by retaining water in the city landscape and balancing ecohydrological partitioning into evapotranspiration for ... -
Comprehensive analysis of chemical and biological problems associated with browning agents used in aquatic studies
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (Limnology and Oceanography: Methods, 2021-10-28)
Inland waters receive and process large amounts of colored organic matter from the terrestrial surroundings. These inputs dramatically affect the chemical, physical, and biological properties of water bodies, as well as ... -
Multimodal travel‐time maps with formally correct and schematic isochrones
; ; ; ; ; (Transactions in GIS, 2021-08-31)
The automatic generation of travel‐time maps is a prerequisite for many fields of application such as tourist assistance and spatial decision support systems, for example to analyze the accessibility of health and social ... -
Contrasting Biophysical Controls on Carbon Dioxide and Methane Outgassing From Streams
; ; ; ; ; ; (Journal of Geophysical Research: Biogeosciences, 2021-12-30)
Small headwater streams are recognized for intense outgassing to the atmosphere of climate‐relevant carbon dioxide (CO2) and methane (CH4). Though these headwaters are markedly oversaturated for both CO2 and CH4, the origins ... -
High spatial‐resolution monitoring to investigate nitrate export and its drivers in a mesoscale river catchment along an anthropogenic land‐cover gradient
; ; ; (Hydrological Processes, 2021-12-14)
Nitrate monitoring is commonly conducted with low‐spatial resolution, only at the outlet or at a small number of selected locations. As a result, the information about spatial variations in nitrate export and its drivers ... -
Systematic Evaluation of Geometry‐Driven Lateral River‐Groundwater Exchange in Floodplains
; ; (Water Resources Research, 2021-08-21)
The widening and narrowing of river‐valley aquifers can cause valley‐scale lateral hyporheic exchange even if the river is straight and its slope is uniform. For the aforementioned system, we derive a semi‐analytical ... -
Isotope hydrology and water sources in a heavily urbanized stream
; ; ; (Hydrological Processes, 2021-10-06)
Complex networks of both natural and engineered flow paths control the hydrology of streams in major cities through spatio‐temporal variations in connection and disconnection of diverse water sources. We used spatially ... -
From consumer to enterprise grade: How the choice of four UAS impacts point cloud quality
; ; ; ; ; ; ; (Earth Surface Processes and Landforms, 2021-06-10)
Uncrewed aerial systems (UAS), combined with structure‐from‐motion photogrammetry, has already proven to be very powerful for a wide range of geoscience applications and different types of UAS are used for scientific and ... -
Spatial and Temporal Variability in Concentration‐Discharge Relationships at the Event Scale
; ; ; ; ; ; ; (Water Resources Research, 2021-10-13)
The analysis of concentration‐discharge (C‐Q) relationships from low‐frequency observations is commonly used to assess solute sources, mobilization, and reactive transport processes at the catchment scale. High‐frequency ... -
Automatic content‐based georeferencing of historical topographic maps
; (Transactions in GIS, 2021-08-30)
Old maps are more than a cultural artefact: they are data. Data about the past still hold value for science and decision‐making today. Libraries and archives have come a long way in digitising their inventories of thousands, ... -
Is the soil moisture precipitation feedback enhanced by heterogeneity and dry soils? A comparative study
; ; ; (Hydrological Processes, 2021-09-09)
The interaction between the land surface and the atmosphere is a crucial driver of atmospheric processes. Soil moisture and precipitation are key components in this feedback. Both variables are intertwined in a cycle, that ... -
The effect of stream shading on the inflow characteristics in a downstream reservoir
; ; ; ; (River Research and Applications, 2021-06-14)
In thermally stratified reservoirs, inflows form density currents according to the interplay between inflow temperature and reservoir stratification. The temperature of inflowing water is affected by catchment properties, ... -
Spaceborne River Discharge From a Nonparametric Stochastic Quantile Mapping Function
; ; ; (Water Resources Research, 2021-12-21)
The number of active gauges with open‐data policy for discharge monitoring along rivers has decreased over the last decades. Therefore, spaceborne measurements are investigated as alternatives. Among different techniques ... -
The HydroEcoSedimentary tool: An integrated approach to characterise interstitial hydro‐sedimentary and associated ecological processes
; ; ; (River Research and Applications, 2021-05-26)
Increased deposition of fine sediments in rivers and streams affects a range of key ecosystem processes across the sediment–water interface, and it is a critical aspect of river habitat degradation and restoration. ... -
Complex High‐ and Low‐Flow Networks Differ in Their Spatial Correlation Characteristics, Drivers, and Changes
; (Water Resources Research, 2021-09-15)
Hydrologic extremes such as floods and droughts are often spatially related, which increases management challenges and potential impacts. However, these spatial relationships in high and low flows are often overlooked in ... -
Process‐Based Flood Risk Assessment for Germany
; ; ; ; ; ; ; ; ; ; (Earth's Future, 2021-10-05)
Large‐scale flood risk assessments are crucial for decision making, especially with respect to new flood defense schemes, adaptation planning and estimating insurance premiums. We apply the process‐based Regional Flood ... -
Evolution of Sea Surface Hydrology Along the Western Australian Margin Over the Past 450 kyr
; ; ; ; ; ; ; (Paleoceanography and Paleoclimatology, 2021-11-05)
We collected a suite of core top samples during R/V Sonne Cruise SO257 in May 2017 along the southwestern front of the Indo‐Pacific Warm Pool (IPWP) to monitor the variability of Southern Hemisphere tropical and subtropical ... -
Role of reservoir regulation and groundwater feedback in a simulated ground‐soil‐vegetation continuum: A long‐term regional scale analysis
; ; ; ; ; ; ; ; ; ; ; ; (Hydrological Processes, 2021-08-23)
The regional terrestrial water cycle is strongly altered by human activities. Among them, reservoir regulation is a way to spatially and temporally allocate water resources in a basin for multi‐purposes. However, it is ... -
Atmospheric Wind Biases: A Challenge for Simulating the Arctic Ocean in Coupled Models?
; ; ; ; ; ; (Journal of Geophysical Research: Oceans, 2021-10-25)
Many state‐of‐the‐art climate models do not simulate the Atlantic Water (AW) layer in the Arctic Ocean realistically enough to address the question of future Arctic Atlantification and its associated feedback. Biases ... -
The Transpolar Drift Influence on the Arctic Ocean Silicon Cycle
; ; ; ; (Journal of Geophysical Research: Oceans, 2021-11-03)
During most of the year, diatom production in the ice‐covered Central Arctic Ocean (CAO) is limited by light availability and nutrient supply. Therefore, biological production is thought to be generally low, with higher ... -
Volume Transport Time Series and Variability of the North Atlantic Eastern Boundary Current at Goban Spur
; ; ; ; ; ; (Journal of Geophysical Research: Oceans, 2021-09-16)
The Eastern Boundary Current is an essential part of the water mass exchange between the subtropical and subpolar North Atlantic. Here, we study the offshore branch of the European Shelf Current (ESC) over the Goban Spur ...
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