| 1. |
- Ameli, Ali A., et al.
(författare)
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Where and When to Collect Tracer Data to Diagnose Hillslope Permeability Architecture
- 2021
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Ingår i: Water resources research. - : American Geophysical Union (AGU). - 0043-1397 .- 1944-7973. ; 57:8
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Tidskriftsartikel (refereegranskat)abstract
- The permeability architecture has a major influence on hillslope flow path and hydrogeochemistry. To constrain this architecture and overcome equifinality in the diagnosis of hillslope flow paths within hydrologic transport models, different types of complementary data (e.g., tracer) have been recommended. However, there is still little information on the extent to which such complementary data can unravel the permeability architecture, and where and when to measure such data to most efficiently constrain models. Here, we couple a Richards-based flow and transport model with extensive long-term field measurements to compare the relative value of different types of hydrometric and tracer data in discriminating between contrasting permeability (or saturated hydraulic conductivity ()) architectures, in the absence of macropore flow. Our results show that compared to streamflow and water table observations, stream tracer data have a stronger evaluative potential to constrain hillslope vertical pattern in , in particular during seasons when flow is on average low (e.g., winter or summer). Tracer data from within the hillslope are even more helpful to discriminate between different vertical patterns in Ks than stream tracer data. This suggests a higher evaluative potential for hillslope tracer observations. This evaluative potential of hillslope data depends on where and when the data are collected, and increases with depth from the soil surface, with distance from the stream and during seasons when flow is low. The findings also emphasize the importance of incorporating hillslope permeability architecture in hydrologic transport models in order to reduce the uncertainty in the predictions of stream water quality.
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| 2. |
- Arheimer, Berit, et al.
(författare)
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The IAHS Science for Solutions decade, with Hydrology Engaging Local People IN a Global world (HELPING)
- 2024
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Ingår i: Hydrological Sciences Journal. - 0262-6667 .- 2150-3435.
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Tidskriftsartikel (refereegranskat)abstract
- The new scientific decade (2023-2032) of the International Association of Hydrological Sciences (IAHS) aims at searching for sustainable solutions to undesired water conditions - may it be too little, too much or too polluted. Many of the current issues originate from global change, while solutions to problems must embrace local understanding and context. The decade will explore the current water crises by searching for actionable knowledge within three themes: global and local interactions, sustainable solutions and innovative cross-cutting methods. We capitalise on previous IAHS Scientific Decades shaping a trilogy; from Hydrological Predictions (PUB) to Change and Interdisciplinarity (Panta Rhei) to Solutions (HELPING). The vision is to solve fundamental water-related environmental and societal problems by engaging with other disciplines and local stakeholders. The decade endorses mutual learning and co-creation to progress towards UN sustainable development goals. Hence, HELPING is a vehicle for putting science in action, driven by scientists working on local hydrology in coordination with local, regional, and global processes.
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| 3. |
- Blauhut, Veit, et al.
(författare)
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Lessons from the 2018-2019 European droughts : a collective need for unifying drought risk management
- 2022
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Ingår i: Natural hazards and earth system sciences. - : Copernicus Publications. - 1561-8633 .- 1684-9981. ; 22:6, s. 2201-2217
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Tidskriftsartikel (refereegranskat)abstract
- Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazard severity and frequency of past drought events have been studied in detail, little is known about the effect of drought management strategies on the actual impacts and how the hazard is perceived by relevant stakeholders. In a continental study, we characterised and assessed the impacts and the perceptions of two recent drought events (2018 and 2019) in Europe and examined the relationship between management strategies and drought perception, hazard, and impact. The study was based on a pan-European survey involving national representatives from 28 countries and relevant stakeholders responding to a standard questionnaire. The survey focused on collecting information on stakeholders' perceptions of drought, impacts on water resources and beyond, water availability, and current drought management strategies on national and regional scales. The survey results were compared with the actual drought hazard information registered by the European Drought Observatory (EDO) for 2018 and 2019. The results highlighted high diversity in drought perception across different countries and in values of the implemented drought management strategies to alleviate impacts by increasing national and sub-national awareness and resilience. The study identifies an urgent need to further reduce drought impacts by constructing and implementing a European macro-level drought governance approach, such as a directive, which would strengthen national drought management and mitigate damage to human and natural assets.
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| 4. |
- Blauhut, Veit, et al.
(författare)
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Lessons from the 2018–2019 European droughts: A collective need for unifying drought risk management
- 2021
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Ingår i: Natural hazards and earth system sciences. - : Copernicus Publications. - 1561-8633 .- 1684-9981.
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazardous severity and frequency of past drought events have been studied in detail, little is known about the effect of drought management strategies on the actual impacts, and how the hazard is perceived by relevant stakeholders for inducing action. In a continental study, we characterised and assessed the impacts and the perceptions of two recent drought events (2018 and 2019) in Europe and examined the relationship between management strategies and drought perception, hazard and impacts. The study was based on a pan-European survey involving national representatives from 28 countries and relevant stakeholders responding to a standard questionnaire. The survey focused on collecting information on stakeholders’ perceptions of drought, impacts on water resources and beyond, water availability and current drought management strategies at national and regional scales. The survey results were compared with the actual drought hazard information registered by the European Drought Observatory (EDO) for 2018 and 2019. The results highlighted high diversity in drought perceptions across different countries and in values of implemented drought management strategies to alleviate impacts by increasing national and sub-national awareness and resilience. The study concludes with an urgent need to further reduce drought impacts by constructing and implementing a European macro-level drought governance approach, such as a directive, which would strengthen national drought management and lessen harm to human and natural potentials.
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| 5. |
- Blicharska, Malgorzata, 1979-, et al.
(författare)
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Environmental Conservation Challenges in a multi-sector system
- 2018
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Ingår i: Biodiverse. - Uppsala : Centrum för biologisk mångfald. - 1401-5064 .- 2002-3820. ; 23:4, s. 16-17
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Many sectors in society are involved in nature conservation issues, like agriculture, forestry and land-use planning. Coherence on a political level between these sectors is getting more and more important, not only to avoid conflict, but also to discover and develop synergies between the sectors. In our study, we see that nature conservation could be a tool for strengthening other sectors.
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| 6. |
- Blicharska, Malgorzata, 1979-, et al.
(författare)
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SDG partnerships may perpetuate the global North–South divide
- 2021
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Ingår i: Scientific Reports. - : Springer Nature. - 2045-2322. ; 11:1
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Tidskriftsartikel (refereegranskat)abstract
- The 2030 Agenda for Sustainable Development gives equal emphasis to developed (“Northern”) countries and developing (“Southern”) countries. Thus, implementation of the Sustainable Development Goals (SDGs) demands coherent collaboration to transform society across all countries. Yet, there has been little research published on SDG partnerships and this is the first study to explore the extent to which partners from Northern and Southern countries are involved in them and their focus. It identifies that involvement is unequally distributed and may perpetuate the North–South divide in countries’ resources, including access to data and scientific capacities. Most notably, partners from low-income countries are involved in far fewer partnerships than partners from countries in all other World Bank income categories, although the former are least able to develop sustainably. As such, all those promoting sustainable development from governmental, private and third-sector organisations need to address global inequalities in establishing and implementing SDG partnerships if, collectively, they are to facilitate delivery of Agenda 2030.
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| 7. |
- Blicharska, Malgorzata, 1979-, et al.
(författare)
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The water–energy–food–land–climate nexus : Policy coherence for sustainable resource management in Sweden
- 2023
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Ingår i: Environmental Policy and Governance. - : John Wiley & Sons. - 1756-932X .- 1756-9338.
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Tidskriftsartikel (refereegranskat)abstract
- The concept of a ‘nexus’ across issues regarding the management of natural resources has gained increasing academic attention in recent years, but there is still relatively limited research on the application of the nexus approach for evaluating policies. This study analyses coherence among the main goals of five policy areas (water, energy, food, land, and climate) in Sweden, drawing upon a desk review, expert assessment, and interaction with stakeholders. The main objective is to enhance understanding of opportunities and challenges posed by such a nexus, understand policy interactions in Sweden, and provide insights into the use of policy coherence analysis as an integral part of resource nexus assessments. The analysis reveals synergies and conflicts between policy goals. For example, Sweden's environmental quality objectives (EQOs) regarding land and all the goals regarding water are either synergistic or neutral. Likewise, climate policy goals are well aligned with the goals regarding energy and ground water quality. On the other hand, the key goal for agriculture, which is food production, is the least coherent with those of the other policy areas. There are conflicts between the EQOs and goals regarding agricultural and forestry production. Stakeholders also indicate that climate goals are treated with higher priority than the goals of other policy areas. Notably, some interactions between policy goals are synergistic or conflicting depending on the context or their interpretation. Implementation of existing goals depends on relevant stakeholders' interests, priorities and interpretations, and on existing prevailing discourses in society, often supported by higher level policies.
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| 8. |
- Hakala, Kirsti, et al.
(författare)
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Hydrological Modeling of Climate Change Impacts
- 2019
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Ingår i: Encyclopedia of Water. - : John Wiley & Sons. - 9781119300755 - 9781119300762
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Bokkapitel (refereegranskat)abstract
- Hydrological climate change impact modeling is a commonly used approach to quantify potential future changes in streamflow. In this article, we present an introduction to the main steps involved in the production of such streamflow projections. We review commonly used modeling approaches to quantify climate change impacts on water resources, describe the main sources of uncertainty in hydrological projections and how to characterize them, and discuss best practices. The supplementary material includes a guide to perform typical data processing tasks involved in the production of hydrological projections. We also provide material to support teaching activities related to hydrological climate change impact modeling. The goal of this article is to support studies on climate change impacts on hydrological systems by providing guidance on working with the climate-hydrology modeling chain.
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| 9. |
- Jaramillo, Fernando, et al.
(författare)
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Dominant effect of increasing forest biomass on evapotranspiration: Interpretations of movement in Budyko space
- 2018
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Ingår i: Hydrology and Earth System Sciences. - : Copernicus GmbH. - 1027-5606 .- 1607-7938. ; 22, s. 567-580
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Tidskriftsartikel (refereegranskat)abstract
- During the last 6 decades, forest biomass has increased in Sweden mainly due to forest management, with a possible increasing effect on evapotranspiration. However, increasing global CO 2 concentrations may also trigger physiological water-saving responses in broadleaf tree species, and to a lesser degree in some needleleaf conifer species, inducing an opposite effect. Additionally, changes in other forest attributes may also affect evapotranspiration. In this study, we aimed to detect the dominating effect(s) of forest change on evapotranspiration by studying changes in the ratio of actual evapotranspiration to precipitation, known as the evaporative ratio, during the period 1961-2012. We first used the Budyko framework of water and energy availability at the basin scale to study the hydroclimatic movements in Budyko space of 65 temperate and boreal basins during this period. We found that movements in Budyko space could not be explained by climatic changes in precipitation and potential evapotranspiration in 60% of these basins, suggesting the existence of other dominant drivers of hydroclimatic change. In both the temperate and boreal basin groups studied, a negative climatic effect on the evaporative ratio was counteracted by a positive residual effect. The positive residual effect occurred along with increasing standing forest biomass in the temperate and boreal basin groups, increasing forest cover in the temperate basin group and no apparent changes in forest species composition in any group. From the three forest attributes, standing forest biomass was the one that could explain most of the variance of the residual effect in both basin groups. These results further suggest that the water-saving response to increasing CO 2 in these forests is either negligible or overridden by the opposite effect of the increasing forest biomass. Thus, we conclude that increasing standing forest biomass is the dominant driver of long-term and large-scale evapotranspiration changes in Swedish forests.
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| 10. |
- Lyon, Steve W., et al.
(författare)
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Problem-based learning and assessment in hydrology courses: Can non-traditional assessment better reflect intended learning outcomes?
- 2011
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Ingår i: Journal of Natural Resources & Life Sciences Education. - : Wiley. - 1539-1582 .- 1059-9053. ; 40:1, s. 199-205
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Tidskriftsartikel (refereegranskat)abstract
- Hydrology has at its core a focus on real-world applications and problems stemming from the importance of water for society and natural systems. While hydrology is firmly founded in traditional “hard” sciences like physics and mathematics, much of the innovation and excitement in current and future research-oriented hydrology comes through intersection with other disciplines. This leads to combinations of intended learning outcomes (ILOs) in hydrology courses that may not be easily or completely achieved using traditional lecture-based learning environments or using basic problem-solving techniques. Problem based learning (PBL) may work well in hydrology courses due to the focus on real-world applications and cross-discipline natureof modern hydrology. Since PBL differs from traditional teacher-centered approaches, student learning must be supported and assessed differently. This article focuses on identifying several non-traditional assessment forms to help facilitate the use of PBL approaches in hydrology courses. We present an example hydrology modeling course employing one such non-traditional PBLspecific form of assessment. Further, we seek to test the hypothesis that non-traditional assessment associated with PBL better reflects the ability of the students to achieve the ILOs in such courses. Results from the example course considered indicate that students not only preferred but also performed better in a PBL environment with its non-traditional form of assessment. This makes a strong case for incorporating both PBL and associated non-traditional forms of assessment into our teaching in hydrology and other applied science courses.
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