| Doel van vervaardiging |
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. |
| Krediet |
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 |
| Beschrijving |
The model is not downloadable (only viewer access), but can be inquired via e-mail to trine.bekkby@niva.no. |
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|
| Naam Contactpersoon |
Trine Bekkby |
| Organisatie |
Norwegian Institute for Water Research (NIVA) |
| E-mail |
trine.bekkby@niva.no
|
| Rol |
Contactpunt: Partij waarmee contact kan worden opgenomen voor het vergaren van kennis of
verstrekking van de data. |
| GDI-Vlaanderen Trefwoorden |
Metadata GDI-Vl-conform
|
| Overige trefwoorden |
GEMET - INSPIRE themes, version 1.0
|
| Overige trefwoorden |
Uncategorized
|
| Overige trefwoorden |
Marine habitat mapping
|
| Overige trefwoorden |
Habitats and Biotopes
|
| Overige trefwoorden |
Downloadable Data
|
| Ruimtelijk schema dataset(serie) |
grid: Grid data wordt gebruikt om geografische
data te representeren. |
| Taal |
Engels |
| Karakterset |
UTF-8: 8-bit variabele grootte universele karakterset, gebaseerd op ISO/IEC 10646 |
| Categorie(ën) |
|
| Systeem omschrijving |
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.1.7333 |
| Omschrijving geografische begrenzing |
|
| Minimum x-coordinaat |
6.225372 |
| Maximum x-coordinaat |
6.761523 |
| Minimum y-coordinaat |
62.671697 |
| Maximum y-coordinaat |
62.913014 |
|
| Identificator geografische begrenzing |
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