331820Edited by MartynC.110012833layer_information_pageund1449064510147790982700147790982755<p>Wave height is determined by the distance that winds blow over the surface of the ocean (known as the wave fetch). &nbsp;&nbsp;Longer fetch produces bigger waves, so wave fetch is a useful proxy for wave climate. The layer shows the sum of the wave fetch in 32 directions for points on a 200m grid.</p> <p>The data are derived from a model that searches from each location for the nearest land in each direction. &nbsp;The wave exposure index is an accurate predictor of species with particular wave habitat requirements, such as the kelp known as ‘tangle’ &nbsp;found only in exposed conditions, and Egg wrack seaweed found only in wave shelter.</p> <p><strong>Date of Data</strong>: January 2012</p> full_html<p>Wave height is determined by the distance that winds blow over the surface of the ocean (known as the wave fetch).   Longer fetch produces bigger waves, so wave fetch is a useful proxy for wave climate. The layer shows the sum of the wave fetch in 32 directions for points on a 200m grid.</p> <p>The data are derived from a model that searches from each location for the nearest land in each direction.  The wave exposure index is an accurate predictor of species with particular wave habitat requirements, such as the kelp known as ‘tangle’  found only in exposed conditions, and Egg wrack seaweed found only in wave shelter.</p> <p><strong>Date of Data</strong>: January 2012</p> 1452355wave_exposure_index_copyright_sams.jpgpublic://wave_exposure_index_copyright_sams.jpgimage/jpeg6442511477909815imageWave exposure index screen shot Wave exposure index screen shot Wave exposure index screen shot © Marine ScotlandWave exposure index screen shot © Marine Scotland<_drafty_revision_requested>FIELD_LOAD_CURRENTWave exposure index screen shot 577777577777filtered_html603<p>Details of the methodology for this data layer can be found in two papers:</p> <ul> <li>Burrows, M.T., 2012. Influences of wave fetch, tidal flow and ocean colour on subtidal rocky communities. Mar Ecol Prog Ser 445, 193–207. doi:10.3354/meps09422</li> <li>Burrows, M.T., Harvey, R., Robb, L., 2008. Wave exposure indices from digital coastlines and the prediction of rocky shore community structure. Marine Ecology Progress Series 353, 1–12. doi:10.3354/meps07284</li> </ul> full_html<p>Details of the methodology for this data layer can be found in two papers:</p> <ul> <li>Burrows, M.T., 2012. Influences of wave fetch, tidal flow and ocean colour on subtidal rocky communities. Mar Ecol Prog Ser 445, 193–207. doi:10.3354/meps09422</li> <li>Burrows, M.T., Harvey, R., Robb, L., 2008. Wave exposure indices from digital coastlines and the prediction of rocky shore community structure. Marine Ecology Progress Series 353, 1–12. doi:10.3354/meps07284</li> </ul> 1436513319920sioc:Itemfoaf:Documentdc:datedc:createdxsd:dateTimedate_iso8601dc:modifiedxsd:dateTimedate_iso8601content:encodedsioc:has_creatorrelfoaf:namesioc:num_repliesxsd:integersioc:last_activity_datexsd:dateTimedate_iso8601https://marine.gov.scot/?q=information/wave-exposure-index0204523318212833publishedpublished551477909827111477909827204523318212833publishedpublished551477909827111477909827204523318212833publishedpublished551477909827111477909827