Browsing NIVA-rapporter by Author "Sample, James Edward"

Now showing items 21-27 of 27

    • Tålegrenser for forsuring og overskridelser for Høyangervassdraget i Vestland fylke 

      Gundersen, Cathrine Brecke; Austnes, Kari; Sample, James Edward; Lund, Espen (NIVA-rapport;7910-2023, Research report, 2023)
      Det har blitt beregnet tålegrenser for forsuring og overskridelse av disse for Høyangervassdraget og separat for delnedbørfeltene Håland, Gautingsdal og Eiriksdal. Overskridelser er beregnet for dagens (årene 2017-2021) ...

    • Tålegrenser for forsuring og overskridelser for seks vassdrag i Vestland fylke 

      Austnes, Kari; Sample, James Edward; Lund, Espen (NIVA-rapport;7586, Research report, 2021)
      Det har blitt beregnet tålegrenser for forsuring og overskridelse av disse for Samnanger-, Uskedals-, Eksingedals-, Modals-, Yndesdals- og Flekke- og Guddalsvassdraget. Overskridelser er beregnet for dagens (2012-2016) og ...

    • TEOTIL Metals: Development report - 2021 

      Sample, James Edward (NIVA-rapport;7569, Research report, 2021)
      The model TEOTIL has been widely used in Norway for simulating nutrient fluxes at national scale. This report describes extending TEOTIL to incorporate metals. A review of metal behaviours is presented and the requirements ...

    • 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. ...

    • 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 ...

    • Trends and patterns in surface water chemistry in Europe and North America between 1990 and 2020, with a focus on calcium 

      Vogt, Rolf David; Agnieszka, Kolada; Arle, Jens; Austnes, Kari; Van Dam, Herman; Futter, Martyn; Fölster, Jens; Gundersen, Cathrine Brecke; Higgins, Scott N.; Houle, Daniel; Hruska, Jakub; Monteith, Don; Paterson, Andrew; Rogora, Michela; Sample, James Edward; Stoddard, John; Steingruber, Sandra; Ulanczyk, Rafak; Vuorenmaa, Jussi; de Wit, Heleen (NIVA-rapport;7931-2024, Research report, 2024)
      The report presents trends in major anions and cations, pH, TOC and bicarbonate in surface waters in Europe and North America from 1990 to 2020. Special attention is given to trends in calcium, which showed some unexpected ...

    • 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 ...