Blar i NIVA Open Access Archive på forfatter "Kaste, Øyvind"
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Riverine inputs and direct discharges to Norwegian coastal waters - 2008
Skarbøvik, Eva; Stålnacke, Per G.; Kaste, Øyvind; Selvik, John Rune; Tjomsland, Torulv; Høgåsen, Tore; Aakerøy, Paul Andreas; Haaland, Ståle; Beldring, Stein (NIVA-rapport;5869, Research report, 2009)Riverine inputs and direct discharges to Norwegian seas in 2008 have been estimated, in accordance with the requirements of the OSPAR Commission. Nutrient inputs from both rivers and point sources (industry, sewage treatment ... -
Riverine Inputs and Direct Discharges to Norwegian Coastal Waters - 2016
Skarbøvik, Eva; Allan, Ian; Sample, James Edward; Greipsland, Inga; Selvik, John Rune; Schanke, Liv Bente; Beldring, Stein; Stålnacke, Per; Kaste, Øyvind (NIVA-rapport;7217, Research report, 2017)Riverine inputs and direct discharges to Norwegian coastal waters in 2016 have been estimated in accordance with the OSPAR Commission’s principles. Nutrients, metals and organic pollutants have been monitored in rivers; ... -
Riverine inputs and direct discharges to Norwegian coastal waters – 2010
Skarbøvik, Eva; Stålnacke, Per; Kaste, Øyvind; Selvik, John Rune; Tjomsland, Torulv; Høgåsen, Tore; Beldring, Stein (NIVA-rapport;6225-2011, Research report, 2011)Riverine inputs and direct discharges to Norwegian coastal waters in 2010 have been estimated in accordance with the requirements of the OSPAR Commission. With a few exceptions, riverine inputs of nutrients decreased in ... -
Simulating water quality and ecological status of Lake Vansjø, Norway, under land-use and climate change by linking process-oriented models with a Bayesian network
Couture, Raoul-Marie; Moe, S. Jannicke; Lin, Yan; Kaste, Øyvind; Haande, Sigrid; Solheim, Anne Lyche (Journal article; Peer reviewed, 2018)Excess nutrient inputs and climate change are two of multiple stressors affecting many lakes worldwide. Lake Vansjø in southern Norway is one such eutrophic lake impacted by blooms of toxic blue-green algae (cyanobacteria), ... -
Skisse til kalkingsplan for Budalselva, et sidevassdrag til Modalsvassdraget i Hordaland
Høgberget, Rolf; Kaste, Øyvind (NIVA-rapport;7365, Research report, 2019)Budalselva, som er et sidevassdrag til Modalselva, er preget av forsuring og kan potensielt skape giftige aluminiums-blandsoner i nedre del av Modalselva. Modalselva er kalket siden våren 2016. Det er foreslått to alternative ... -
Streamwater responses to reduced nitrogen deposition at four small upland catchments in Norway
Kaste, Øyvind; Austnes, Kari; de Wit, Heleen (Peer reviewed; Journal article, 2020)Reduced emissions of nitrogen (N) in Europe have resulted in decreasing atmospheric deposition since 1990. Long-term data (1988–2017) from four small Norwegian catchments located along gradients in N deposition, rainfall, ... -
Synthesis of climate relevant results from selected monitoring programs in the coastal zone. Part 2: Quantitative analyses
Frigstad, Helene; Andersen, Guri Sogn; Trannum, Hilde Cecilie; Naustvoll, Lars Johan; Kaste, Øyvind; Hjermann, Dag Øystein (NIVA-rapport;7311, Research report, 2018)This report is Part 2 of the project Synthesis of climate relevant results from selected monitoring programs in the coastal zone (Klima-Overblikk). The overall aim of this report was to document changes over the period ... -
The Norwegian river monitoring programme – water quality status and trends 2017
Kaste, Øyvind; Skarbøvik, Eva; Greipsland, Inga; Gundersen, Cathrine Brecke; Austnes, Kari; Skancke, Liv Bente; Guerrero, Jose-Luis; Sample, James Edward (NIVA-rapport;7313, Research report, 2018)From 2017, the Norwegian River Monitoring Programme (Elveovervåkingsprogrammet) replaced the former RID programme “Riverine inputs and direct discharges to Norwegian coastal waters” which had run continuously since 1990. ... -
The potential effects on water quality of intensified forest management for climate mitigation in Norway
Futter, Martyn; Clarke, Nicholas; Kaste, Øyvind; Valinia, Salar (NIVA-rapport;7363, Research report, 2019)The objective of this study was to make an overview assessment of the potential effects of intensified forest management, promoted by the Norwegian government as a climate mitigation measure, on water quality in Norwegian ... -
Three decades of change in the Skagerrak coastal ecosystem, shaped by eutrophication and coastal darkening
Frigstad, Helene; Andersen, Guri Sogn; Trannum, Hilde Cecilie; Mcgovern, Maeve; Naustvoll, Lars Johan; Kaste, Øyvind; Deininger, Anne; Hjermann, Dag Øystein (Peer reviewed; Journal article, 2023)Global coastal ecosystems are under accelerating pressure from human activities and climate change. In this study we explore a long-term time series (mostly 1990–2016) from major Norwegian rivers, together with coastal ... -
Trends and patterns in surface water chemistry in Europe and North America between 1990 and 2016, with particular focus on changes in land use as a confounding factor for recovery
Garmo, Øyvind Aaberg; Kaste, Øyvind; Arle, Jens; Austnes, Kari; de Wit, Heleen; Fölster, Jens; Houle, Daniel; Hruska, Jakub; Indriksone, Iveta; Monteith, Don; Rogora, Michaela; Sample, James Edward; Steingruber, Sandra; Stoddard, John L.; Talkop, Reet; Trodd, Wayne; Ulańczyk, Rafał Piotr; Vuorenmaa, Jussi (NIVA-rapport;7479, Research report, 2020)The report presents trends in sulphate, nitrate, chloride, base cations, ANC (acid neutralising capacity), pH and DOC at circa 500 ICP Waters sites in Europe and North America for the period 1990-2016. Time series were ... -
Using in situ sensor-based monitoring to study impacts of climate change on river water quality and element fluxes
Poste, Amanda; Jackson-Blake, Leah Amber; Mcgovern, Maeve; Kaste, Øyvind; Sample, James Edward; Skogan, Odd Arne Segtnan; Austnes, Kari; Brandt, Uta; Høgberget, Rolf (NIVA-rapport;7812-2023, Research report, 2022)The report contains an analysis of high-frequency sensor data from two rivers included in the Norwegian River Monitoring Programme; Storelva in southern Norway and Målselva in northern Norway. The main aim of the report ... -
Utredning av aktuelle kalkingstiltak i Agder
Haraldstad, Tormod; Hindar, Atle; Høgberget, Rolf; Kaste, Øyvind; Teien, Hans-Christian (NIVA-rapport;7110, Research report, 2017-01)De fleste store vassdragene i Vest-Agder kalkes i dag for å sikre god nok vannkvalitet for laks og sjøørret. Blant disse er Audna, som er blitt dosererkalket siden 1985, og Mandalselva hvor det ble satt i gang storstilt ... -
Utredning av program for overvåking av klimaendringseffekter i ferskvann
Kaste, Øyvind; Sandlund, Odd Terje; Schartau, Ann Kristin; Moe, Erlend; Roald, Lars; Svenne, Vibeke; Fleig, Anne K.; Kile, Maia Røst; Hobæk, Anders (NIVA-rapport;6190, Research report, 2011)Klimaet er i endring, og dagens overvåkingsprogrammer for ferskvann er bare i begrenset grad i stand til å dokumentere og skille effekter av klimaendringer fra andre påvirkninger vassdragene utsettes for. Det har vært fokus ... -
Utredning om parametere for suspendert stoff og organisk materiale kan inkluderes i klassifiseringssystemet for vann
Kaste, Øyvind; Skarbøvik, Eva; Vogt, Rolf D. (NIVA-rapport;7860-2023, Research report, 2023)Det mangler per i dag vannkjemiske grenseverdier for suspenderte partikler og organisk materiale i klassifiseringssystemet for vann. Begge elementene var inkludert i klassifiseringsveilederen fra 1997, men i dag brukes ... -
Vannkvalitetsundersøkelse i Ubergsvann knyttet til utslipp fra Ubergsmoen renseanlegg, Vegårshei kommune
Kaste, Øyvind; Håvardstun, Jarle (NIVA-rapport;7839-2023, Research report, 2023)Det er gjennomført en undersøkelse av vannkvaliteten i Ubergsvann, Vegårshei kommune, for å dokumentere eventuelle effekter av utslipp fra Ubergsmoen avløpsrenseanlegg. Undersøkelsen bestod i 6 månedlige prøvetakingsrunder ... -
Vurdering av kalkingen i Flekke-Guddalsvassdraget basert på vannkjemidata
Kaste, Øyvind (NIVA-rapport;7959-2024, Research report, 2024)Flekke-Guddalsvassdraget har blitt kalket siden 1997 for å bedre vannkvaliteten for laksefisk og andre forsuringsfølsomme organismer. Vannkvaliteten på anadrom (lakseførende) strekning er stort sett god, men sure sidevassdrag ...