Projects per year
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- 1 Similar Profiles
Collaborations and top research areas from the last five years
Projects
- 2 Finished
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NKMv25: N-retentionskortlægning - National Kvælstofmodel v2025
Thodsen, H. (Project manager), Tornbjerg, H. (Participant), Frederiksen, R. R. (Participant), Petersen, R. J. (Participant), Kronvang, B. (Participant), Ovesen, N. B. (Participant), Larsen, S. E. (Participant), Kjeldgaard, A. (Participant), Audet, J. (Participant), Andersen, A. H. (Participant), Christiansen, D. A. (Participant), Hoffmann, C. C. (Participant), Henriksen, E. S. (Participant), Hermansen, N. (Participant), Sørensen, P. B. (Participant), Højberg, A. L. (Project manager), Stisen, S. (Participant), Børgesen, C. D. (Participant), Hansen, B. (Participant), Iversen, B. V. (PI), Muff, E. (Participant) & Conradsen, A. R. (Participant)
01/09/2022 → 27/08/2025
Project: Consultancy
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Surface-groundwater interaction. Elements of the hydrograph on a hill island.
Frederiksen, R. R. (Participant), Rasmussen, K. R. (Participant) & Christensen, S. (Participant)
01/08/2013 → 02/10/2017
Project: Research
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Abstract 131 Loss of organic nitrogen from agricultural fields and catchments
Kronvang, B., Petersen, R. J., Rolighed, J., Frederiksen, R. R., Larsen, S. E., Thorsen, M., Andersen, A. H., Rasmussen, J., Engrob, K., Sørensen, K. K., Badawi, N., Hansen, B., Kim, H., Goldhammer, T., Graeber, D. & Zak, D. H., 2025.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Abstract 153 Satelite imaging insights on autumn cover, catch crop establishment, and nitrogen load in Danish catchments
Kratschmer, A. K., Blicher-Mathiesen, G., Frederiksen, R. R., Thorsen, M., Janss, L. & Giannini-Kurina, F., 2025.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Abstract 186 Nitrogen retention in Danish surface waters - a new model
Thodsen, H., Audet, J., Petersen, R. J., Sørensen, P. B., Kronvang, B., Frederiksen, R. R., Hermansen, N., Andersen, A. H., Larsen, S. E., Kjeldgaard, A. & Tornbjerg, H., 2025.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Abstract 98 Modelling annual total organic nitrogen concentrations in streams using machine learning at national scale
Frederiksen, R. R., Larsen, S. E. & Kronvang, B., 2025.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Beskrivelse af kvælstofretentionskort version 2025 til anvendelse i lokale grønne treparter via MARS
Højbjerg, A. L. (Editor), Thodsen, H. (Editor), Børgesen, C. D. (Editor), Andersen, A. H., Andersen, L. T., Audet, J., Bach, E. O., Balling, I. M., Christensen, A.-S. H., Christiansen, D. A., Tirado-Conde, J., Falk, F. A., Frederiksen, R. R., Giannini-Kurina, F., Gudbjerg, J., Henriksen, E. S., Hermansen, N., Hoffmann, C. C., Iversen, B. V. & Jørgensen, M. S. & 20 others, , Apr 2025, 101 p.Research output: Book/anthology/report › Report › Commissioned › peer-review
Open Access
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Nitrogen retention in Dansih surface waters
Thodsen, H. (Lecturer), Petersen, R. J. (Other), Sørensen, P. B. (Other), Audet, J. (Other), Kronvang, B. (Other), Frederiksen, R. R. (Other) & Tornbjerg, H. (Other)
6 Jun 2025Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
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United States Geological Survey
Frederiksen, R. R. (Visiting researcher)
29 Mar 2016 → 25 Jun 2016Activity: Visiting an external institution types › Visiting an external academic institution
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Teaching Fellow, Sogn and Fjordane University College, Sogndal, Norway
Frederiksen, R. R. (Participant)
18 Aug 2014 → 5 Sept 2014Activity: Presentations, memberships, employment, ownership and other activities › Other