Advances in Catchment Science, Hydrochemistry, and Aquatic Ecology Enabled by High-Frequency Water Quality Measurements

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(12), P. 4701 - 4719

Published: March 13, 2023

High-frequency water quality measurements in streams and rivers have expanded scope sophistication during the last two decades. Existing technology allows situ automated of constituents, including both solutes particulates, at unprecedented frequencies from seconds to subdaily sampling intervals. This detailed chemical information can be combined with hydrological biogeochemical processes, bringing new insights into sources, transport pathways, transformation processes particulates complex catchments along aquatic continuum. Here, we summarize established emerging high-frequency technologies, outline key hydrochemical data sets, review scientific advances focus areas enabled by rapid development rivers. Finally, discuss future directions challenges for using bridge management gaps promoting a holistic understanding freshwater systems catchment status, health, function.

Language: Английский

---

Convergent and Transdisciplinary Integration: On the Future of Integrated Modeling of Human‐Water Systems

Water Resources Research, Journal Year: 2025, Volume and Issue: 61(2)

Published: Feb. 1, 2025

Abstract The notion of convergent and transdisciplinary integration, which is about braiding together different knowledge systems, becoming the mantra numerous initiatives aimed at tackling pressing water challenges. Yet, transition from rhetoric to actual implementation impeded by incongruence in semantics, methodologies, discourse among disciplinary scientists societal actors. Here, we embrace “integrated modeling”—both quantitatively qualitatively—as a vital exploratory instrument advance such providing means navigate complexity manage uncertainty associated with understanding, diagnosing, predicting, governing human‐water systems. From this standpoint, confront barriers offering seven focused reviews syntheses existing missing links across frontiers distinguishing surface groundwater hydrology, engineering, social sciences, economics, Indigenous place‐based knowledge, studies other interconnected natural systems as atmosphere, cryosphere, ecosphere. While there are, arguably, no bounds pursuit inclusivity representing spectrum human processes around resources, advocate that integrated modeling can provide approach delineating scope through lens three fundamental questions: (a) What “purpose”? (b) constitutes sound “boundary judgment”? (c) are “critical uncertainties” their compounding effects? More broadly, call for investigating what warranted “systems complexity,” opposed unjustified “computational complexity” when complex human‐natural careful attention interdependencies feedbacks, scaling issues, nonlinear dynamics thresholds, hysteresis, time lags, legacy effects.

Language: Английский

---

Nature-based solutions as enablers of circularity in water systems: A review on assessment methodologies, tools and indicators

Water Research, Journal Year: 2020, Volume and Issue: 183, P. 115988 - 115988

Published: June 17, 2020

Water has been pushed into a linear model, which is increasingly acknowledged of causing cumulative emissions pollutants, waste stocks, and impacting on the irreversible deterioration water other resources. Moving towards circular model in sector, configuration future infrastructure changes through integration grey green infrastructure, forming Nature-based Solutions (NBS) as an integral component that connects human-managed to nature-managed systems. In this study, thorough appraisal latest literature conducted, providing overview existing tools, methodologies indicators have used assess NBS for management, well complete systems considering need assessing both anthropogenic natural elements. Furthermore, facilitators barriers with respect policies regulations circularity identified. The study concludes co-benefits management are not adequately assessed. A holistic methodology from perspective still needed integrating tools (i.e. hydro-biogeochemical models), methods MFA-based LCA) incorporating and/or newly-developed indicators.

Language: Английский

---

Modeling Water Quality in Watersheds: From Here to the Next Generation

Water Resources Research, Journal Year: 2020, Volume and Issue: 56(11)

Published: Oct. 29, 2020

In this synthesis, we assess present research and anticipate future development needs in modeling water quality watersheds. We first discuss areas of potential improvement the representation freshwater systems pertaining to quality, including environmental interfaces, in-stream process interactions, soil health land management, (peri-)urban areas. addition, provide insights into contemporary challenges practices watershed modeling, control monitoring data, model parameterization calibration, uncertainty scale mismatches, provisioning tools. Finally, make three recommendations a path forward for improving science, infrastructure, practices. These include building stronger collaborations between experimentalists modelers, bridging gaps modelers stakeholders, cultivating applying procedural knowledge better govern support processes within organizations.

Language: Английский

---

Correlations between water quality and the structure and connectivity of the river network in the Southern Jiangsu Plain, Eastern China

The Science of The Total Environment, Journal Year: 2019, Volume and Issue: 664, P. 583 - 594

Published: Feb. 4, 2019

Language: Английский

---

Forecasting water temperature in lakes and reservoirs using seasonal climate prediction

Water Research, Journal Year: 2021, Volume and Issue: 201, P. 117286 - 117286

Published: May 24, 2021

Seasonal climate forecasts produce probabilistic predictions of meteorological variables for subsequent months. This provides a potential resource to predict the influence seasonal anomalies on surface water balance in catchments and hydro-thermodynamics related bodies (e.g., lakes or reservoirs). Obtaining impact discharge temperature) requires link between models simulating hydrology lake hydrodynamics thermal regimes. However, this remains challenging stakeholders scientific community, mainly due nature these predictions. In paper, we introduce feasible, robust, open-source workflow integrating with hydrologic generate temperature profiles. The has been designed be applicable any catchment associated reservoir, is optimized study four catchment-lake systems help their proactive management. We assessed performance resulting by comparing them (pseudo)observations (reanalysis). Precisely, analysed historical using data sample past reanalysis obtain information about skill (performance quality) forecast system particular events. used current (SEAS5) (ERA5) European Centre Medium Range Weather Forecasts (ECMWF). found that limited predictability at time-scales over locations case studies (Europe South Australia), exhibited none low (skill) atmospheric considered. Nevertheless, present some all but one study. Moreover, had higher natural than reservoirs, which means human control relevant factor affecting predictability, increases depth studies. Further investigation into skillful should aim identify extent consequence inertia (i.e., lead-in conditions).

Language: Английский

---

Opportunities for seasonal forecasting to support water management outside the tropics

Hydrology and earth system sciences, Journal Year: 2022, Volume and Issue: 26(5), P. 1389 - 1406

Published: March 14, 2022

Abstract. Advance warning of seasonal conditions has the potential to assist water management in planning and risk mitigation, with large social, economic, ecological benefits. In this study, we explore value forecasting for decision-making at five case study sites located extratropical regions. The tools used integrate climate model forecasts freshwater impact models catchment hydrology, lake (temperature, level, chemistry, ecology), fish migration timing were co-developed together managers. To forecasts, carried out a qualitative assessment (1) how useful would have been problematic past season (2) relevance any windows opportunity (seasons variables where are thought perform well) management. Overall, managers optimistic about improved identified actions that could be taken based on forecasts. However, there was often mismatch between those best predicted which most Reductions forecast uncertainty need develop practical, hands-on experience as key requirements before operational decision-making. Seasonal provided little added these sites, discuss under only limited skill likely worth incorporating into workflows.

Language: Английский

---

Impacts of watershed nutrient loads on eutrophication risks under multiple socio-economic development scenarios in the Pearl River Estuary, China

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145133 - 145133

Published: Feb. 1, 2025

Language: Английский

---

Bridging global, basin and local-scale water quality modeling towards enhancing water quality management worldwide

Current Opinion in Environmental Sustainability, Journal Year: 2018, Volume and Issue: 36, P. 39 - 48

Published: Nov. 6, 2018

• Global WQ models need sufficient consideration of mechanistic understanding. Multiscale modeling facilitates more consistent water management across scales. Process-based parsimonious are proposed for global model development. Water requires active collaboration among modelers and policy-makers. quality (WQ) is an emerging field. In this article, we identify the missing linkages between basin/local-scale models, discuss possibilities to fill these gaps. We argue that stronger spatial This would help effective scale-specific options contribute future development models. Two directions improve linkages: nested multiscale towards enhanced management, next-generation based-on highlight better policy-makers in order deliver responsive policies strategies

Language: Английский

---

Tracer‐Aided Modeling in the Low‐Relief, Wet‐Dry Tropics Suggests Water Ages and DOC Export Are Driven by Seasonal Wetlands and Deep Groundwater

Water Resources Research, Journal Year: 2020, Volume and Issue: 56(4)

Published: March 17, 2020

Abstract Our understanding of how wet‐dry tropical catchments process water and solutes remains limited. In this study, we attempt to gain dissolved organic carbon (DOC) transport, storage, mixing in a 126 km 2 catchment northern Australia. We developed coupled, tracer‐aided, conceptual rainfall‐runoff model (SAVTAM) that simultaneously calculates water, isotope, DOC‐based processes at daily time step. The semidistributed can account for the marked hydrological distinction between savanna woodlands adjacent seasonal wetlands. Using calibrated model, tracked fluxes derived age storages. Model output matched variability, controlled by rainfall, which switched on off flow pathways from wetlands ultimately perennial river. Such connectivity is modulated karst aquifer system continuously contributes older waters (decades century old) maintain relatively stable streamflow during dry season (average stream = 9.7 16.2 years). occur despite rapid, monsoon‐driven response. DOC were largely sourced wetland riparian forest transported order 1.9 t C −2 year −1 stream, was average 90% total simulated exports C·km ·year . conclude coupled simulation biogeochemistry necessary generate more complete picture functioning, particularly tropics.

Language: Английский

---