Blar i NIVA Open Access Archive på forfatter "Clayer, Francois"
-
Assessment of risks to drinking water provision in Glitrevann from forest fertilization and harvesting
Jackson-Blake, Leah Amber; Clayer, Francois (NIVA-rapport;7458, Research report, 2020)Forest fertilization is planned in the Glitre catchment, an important drinking water source for the Drammen region. In this report, we explore whether fertilization is likely to put drinking water provision in the catchment ... -
Boreal Headwater Catchment as Hot Spot of Carbon Processing From Headwater to Fjord
Clayer, Francois; Thrane, Jan-Erik; Brandt, Uta; Dörsch, Peter; de Wit, Heleen (Peer reviewed; Journal article, 2021)Boreal headwaters and aquatic sediments are significant transporters, stores and processors of terrestrial carbon (C) as well as emitters of greenhouse gases (GHGs), mainly CO2 and CH4. While terrestrial ecosystems are net ... -
Bypass of Booming Inputs of Urban and Sludge-Derived Microplastics in a Large Nordic Lake
Clayer, Francois; Jartun, Morten; Buenaventura, Nina T; Guerrero, Jose-Luis; Lusher, Amy (Peer reviewed; Journal article, 2021)Microplastic research, initially focusing on marine environments, left freshwater ecosystems largely unexplored. Freshwaters are also vulnerable to microplastics and are likely the largest microplastic supplier to the ... -
Critical loads and the MAGIC model. Evaluating the country-scale applications in Norway using data from the 2019 national lake survey
Austnes, Kari; Wright, Richard Frederic; Sample, James Edward; Clayer, Francois (NIVA-rapport;7557, Research report, 2020)The critical loads methodology used at the national scale in Norway and the MAGIC model as applied to the lakes in the national 1000-lake survey have been evaluated, making use of the data from the 2019 national lake survey. ... -
Forecasting water temperature in lakes and reservoirs using seasonal climate prediction
Mercado-Bettín, Daniel; Clayer, Francois; Shikhani, Muhammed; Moore, Tadhg N; Frías, María Dolores; Jackson-Blake, Leah; Sample, James; Iturbide, Maialen; Herrera, Sixto; French, Andrew S; Norling, Magnus Dahler; Rinke, Karsten; Marcé, Rafael (Peer reviewed; Journal article, 2021)Seasonal climate forecasts produce probabilistic predictions of meteorological variables for subsequent months. This provides a potential resource to predict the influence of seasonal climate anomalies on surface water ... -
Hydropower: gas supersaturation and the role of aquatic plant photosynthesis for fish health
Demars, Benoît Olivier Laurent; Dörsch, Peter; Thiemer, Kirstine; Clayer, Francois; Schneider, Susanne Claudia; Stranzl, Sebastian Franz; Pulg, Ulrich; Velle, Gaute (NIVA-rapport;7633, Research report, 2021)Fish and invertebrates breathing in water supersaturated with gas (total dissolved gas; TDG), e.g. at the outlet of hydropower plants, may develop gas bubble disease (analogous to the bends in humans). Aquatic plants also ... -
Levels of nitramines and nitrosamines in lake drinking water close to a CO2 capture plant: A modelling perspective
Norling, Magnus Dahler; Clayer, Francois; Gundersen, Cathrine Brecke (Peer reviewed; Journal article, 2022)While CO2 capture is considered a key climate change mitigation option, we must ensure that global implementation occurs without causing harm to the local environment and the human health. The most mature option for capture ... -
Measuring riverine macroplastic: Methods, harmonisation, and quality control
Hurley, Rachel; Braaten, Hans Fredrik Veiteberg; Nizzetto, Luca; Steindal, Eirik Hovland; Lin, Yan; Clayer, Francois; Emmerik, Tim van; Buenaventura, Nina Tuscano; Eidsvoll, David Pettersen; Økelsrud, Asle; Norling, Magnus Dahler; Adam, Hans Nicolai; Olsen, Marianne (Peer reviewed; Journal article, 2023)River systems are a key environmental recipient of macroplastic pollution. Understanding the sources of macroplastic to rivers and the mechanisms controlling fate and transport is essential to identify and tailor measures ... -
Mercury isotope analysis of sediments from Gunneklevfjorden – Method evaluation and a preliminary investigation of sources
Braaten, Hans Fredrik Veiteberg; Johnson, Nathan W; Clayer, Francois; Beylich, Bjørnar; Håvardstun, Jarle; Schaanning, Morten; Olsen, Marianne (NIVA-rapport;7417, Research report, 2019)Gunneklevfjorden in south Norway is an aquatic system where the pollution history includes decades of local industry releases and emissions. An accurate estimate of the importance of ongoing and historic sources is critical ... -
Mineralization of organic matter in boreal lake sediments: rates, pathways, and nature of the fermenting substrates
Clayer, Francois; Gélinas, Yves; Tessier, André; Gobeil, Charles (Peer reviewed; Journal article, 2020)The complexity of organic matter (OM) degradation mechanisms represents a significant challenge for developing biogeochemical models to quantify the role of aquatic sediments in the climate system. The common representation ... -
Modelled Nitrosamine and Nitramine concentrations in Lake Elvåga following amine-based CO2 Capture at FOV Waste Incineration Plant at Klemetsrud
Gundersen, Cathrine Brecke; Norling, Magnus Dahler; Clayer, Francois (NIVA-rapport;7520, Research report, 2020)Future levels of the carcinogenic- and potentially carcinogenic nitrosamines (NSAs) and nitramines (NAs), respectively, were modelled in the drinking water source, Lake Elvåga following the planned full-scale amine-based ... -
Opportunities for seasonal forecasting to support water management outside the tropics
Jackson-Blake, Leah Amber; Clayer, Francois; de Eyoto, Elvira; French, Andrew S.; Frías, María Dolores; Mercado-Bettín, Daniel; Moore, Tadhg; Puértolas, Laura; Poole, Russell; Rinke, Karsten; Shikhani, Muhammed; van der Linden, Leon; Marcé, Rafael (Peer reviewed; Journal article, 2022)Advance warning of seasonal conditions has the potential to assist water management in planning and risk mitigation, with large potential social, economic, and ecological benefits. In this study, we explore the value of ... -
Seasonal forecasting of lake water quality and algal bloom risk using a continuous Gaussian Bayesian network
Jackson-Blake, Leah Amber; Clayer, Francois; Haande, Sigrid; Sample, James Edward; Moe, S. Jannicke (Peer reviewed; Journal article, 2022)Freshwater management is challenging, and advance warning that poor water quality was likely, a season ahead, could allow for preventative measures to be put in place. To this end, we developed a Bayesian network (BN) for ... -
Sources of skill in lake temperature, discharge and ice-off seasonal forecasting tools
Clayer, Francois; Jackson-Blake, Leah; Mercado-Bettín, Daniel; Shikhani, Muhammed; French, Andrew; Moore, Tadhg; Sample, James; Norling, Magnus; Frias, Maria-Dolores; Herrera, Sixto; de Eyto, Elvira; Jennings, Eleanor; Rinke, Karsten; van der Linden, Leon; Marcé, Rafael (Peer reviewed; Journal article, 2023)Despite high potential benefits, the development of seasonal forecasting tools in the water sector has been slower than in other sectors. Here we assess the skill of seasonal forecasting tools for lakes and reservoirs set ...