Potential distribution seagrass (Zostera marina) in an area in Nord├©yane, M├©re og Romsdal county, the West coast of Norway
Data represents the distribution of seagrass (eelgrass, Zostera marina) in an area on the West coast of Norway. The model can be inquired via e-mail to trine.bekkby@niva.no.
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Alternate title | NO300001 |
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Date | 2006-01-01 |
Date type | Publication: Date identifies when the resource was issued |
Unique resource identifier | DBFDB54C-2670-44B3-967D-546E5CEF49FB |
Purpose | The model represents the potential distribution of habitat areas of seagrass (eelgrass, Zostera marina) in an area in Nord├©yane, M├©re og Romsdal county, the West coast of Norway. Field data (35 seagrass presences, 560 absences) was collected in 2003. The model was run in 2006 and published in Bekkby et al. (2008). The five predictor variables used were depth, slope, ÔÇ£enclosednessÔÇØ, wave exposure and current speed. The depth model (DTM) was developed at a spatial resolution of 10 m using the linear algorithm of the software Surfer (version 6.1, Bekkby et al., 2002), based on point data and contour intervals purchased from the Norwegian Mapping Authority. Slope was calculated from the DTM using the function available in ArcView 3.3. ÔÇ£EnclosednessÔÇØ (Bekkby and Is├ªus, 2008), i.e. the degree to which an area is situated in an inlet or bay, was modelled at a spatial resolution of 10 m. Wave exposure was modelled, with a spatial resolution of 10 m, as an index using data on fetch (distance to nearest shore, island or coast), averaged wind speed and wind frequency (estimated as the amount of time that the wind came from one of 16 direction). Current speed was estimated by the numerical ocean model ROMS at a 100 m spatial resolution. The model (fivefold cvROC = 0.89) was developed using GAM analysis and AICc model selection, in the statistical program S-PLUS 2000. "Look up tables" and the program Grasp were used to transfer the predictions to ArcView GIS 3.3. |
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Credit | ÔÇó Bekkby T, Rinde E, Erikstad L, Bakkestuen V, Longva O, Christensen O, Is├ªus M, Isachsen PE. 2008. Spatial probability modelling of eelgrass Zostera marina L. distribution on the West coast of Norway. ICES J Mar Sci 65:1093-1101. https://academic.oup.com/icesjms/article/65/7/1093/643728 ÔÇó Bekkby, T., and Is├ªus, M. 2008. Mapping large shallow inlets and bays - modelling a Natura 2000 habitat with digital terrain and wave exposure models. ICES Journal of Marine Science, 65: 238-241. https://academic.oup.com/icesjms/article/65/2/238/736559 ÔÇó Bekkby, T., Erikstad, L., Bakkestuen, V., and Bj├©rge, A. 2002. A landscape ecological approach to coastal zone applications. Sarsia, 87: 396-408. www.tandfonline.com/doi/abs/10.1080/0036482021000155845 |
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Resource constraints
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Point of contact
Individual name | Trine Bekkby |
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Organisation name | Norwegian Institute for Water Research (NIVA) |
Electronic mail address | trine.bekkby@niva.no |
Role | Point of contact: Party who can be contacted for acquiring knowledge about or acquisition of the resource |
Descriptive keywords
GDI-Vlaanderen Trefwoorden | Metadata GDI-Vl-conform |
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Other keywords | GEMET - INSPIRE themes, version 1.0 |
Other keywords | Uncategorized |
Other keywords | Marine habitat mapping |
Other keywords | Habitats and Biotopes |
Other keywords | Downloadable Data |
Spatial representation type | Grid: Grid data is used to represent geographic data |
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Spatial resolution
Distance | 10 m |
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Language | English |
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Character set | UTF8: 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 |
Topic category code |
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Environment description | Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.1.7333 |
Reference System Information
Unique resource identifier | 4326 |
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Codespace | EPSG |
Hierarchy level | Dataset: Information applies to the dataset |
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Lineage
Statement | The model represents the potential distribution of habitat areas of seagrass (eelgrass, Zostera marina) in an area in Nord├©yane, M├©re og Romsdal county, the West coast of Norway. Field data (35 seagrass presences, 560 absences) was collected in 2003. The model was run in 2006 and published in Bekkby et al. (2008). The five predictor variables used were depth, slope, ÔÇ£enclosednessÔÇØ, wave exposure and current speed. The depth model (DTM) was developed at a spatial resolution of 10 m using the linear algorithm of the software Surfer (version 6.1, Bekkby et al., 2002), based on point data and contour intervals purchased from the Norwegian Mapping Authority. Slope was calculated from the DTM using the function available in ArcView 3.3. ÔÇ£EnclosednessÔÇØ (Bekkby and Is├ªus, 2008), i.e. the degree to which an area is situated in an inlet or bay, was modelled at a spatial resolution of 10 m. Wave exposure was modelled, with a spatial resolution of 10 m, as an index using data on fetch (distance to nearest shore, island or coast), averaged wind speed and wind frequency (estimated as the amount of time that the wind came from one of 16 direction). Current speed was estimated by the numerical ocean model ROMS at a 100 m spatial resolution. The model (fivefold cvROC = 0.89) was developed using GAM analysis and AICc model selection, in the statistical program S-PLUS 2000. "Look up tables" and the program Grasp were used to transfer the predictions to ArcView GIS 3.3. |
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mdLegalAndSecurityConstraintsSection
Resource constraints
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Distribution format | Raster Dataset |
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File identifier | DBFDB54C-2670-44B3-967D-546E5CEF49FB | ||||||||
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Metadata language | English | ||||||||
Character set | UTF8: 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 | ||||||||
Hierarchy level | Dataset: Information applies to the dataset | ||||||||
Hierarchy level name | dataset | ||||||||
Date stamp | 2020-01-15T12:23:05 | ||||||||
Metadata standard name | INSPIRE Metadata Implementing Rules: Technical Guidelines based on EN ISO 19115 and EN ISO 19119 | ||||||||
Metadata standard version | V. 1.2 | ||||||||
Contact
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Overviews
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Associated resources
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