Volume 7, Issue 3, August 2014, Pages 972–980
Ali Aydda1, Ahmed Algouti2, Abdellah Algouti3, and Mohamed Essemani4
1 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
2 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
3 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
4 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
A study was conducted in Northern part of Atlantic Sahara coast (SW of Morocco) with the aim of assessing change of suspended sediment concentration (SSC) with time in sea surface from Landsat data with 30 m spatial resolution in order to understand the sand encroachment in the continental area. We must be report that is the first study of SSC monitoring in Southwest of Morocco using earth observation satellite (EOS). The methodology adopted in this research is simple and based on using band ratio (Green/Blue) for two images Landsat Thematic Mapper (TM) from the years 1987 and 2005. A step of classification was necessary, so unsupervised classification using K-means algorithm was applied on both band results from band ratio. After that, the statistical data result from classification was compared to determine the SSC and sand change with time. The results show that the sand increase in continental surface was in relationship with SSC decrease in coastal area. The SSC variation in surface sea indicates that sand input be decreased in next year's.
Author Keywords: Atlantic Sahara coast, SSC, Sand encroachment, Landsat TM, Statistical data change.
Ali Aydda1, Ahmed Algouti2, Abdellah Algouti3, and Mohamed Essemani4
1 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
2 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
3 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
4 Department of Geology, University of Cadi Ayyad, Faculty of Sciences Semlalia, GEOBASSMA Laboratory, Marrakesh, Morocco
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
A study was conducted in Northern part of Atlantic Sahara coast (SW of Morocco) with the aim of assessing change of suspended sediment concentration (SSC) with time in sea surface from Landsat data with 30 m spatial resolution in order to understand the sand encroachment in the continental area. We must be report that is the first study of SSC monitoring in Southwest of Morocco using earth observation satellite (EOS). The methodology adopted in this research is simple and based on using band ratio (Green/Blue) for two images Landsat Thematic Mapper (TM) from the years 1987 and 2005. A step of classification was necessary, so unsupervised classification using K-means algorithm was applied on both band results from band ratio. After that, the statistical data result from classification was compared to determine the SSC and sand change with time. The results show that the sand increase in continental surface was in relationship with SSC decrease in coastal area. The SSC variation in surface sea indicates that sand input be decreased in next year's.
Author Keywords: Atlantic Sahara coast, SSC, Sand encroachment, Landsat TM, Statistical data change.
How to Cite this Article
Ali Aydda, Ahmed Algouti, Abdellah Algouti, and Mohamed Essemani, “Assessment of suspended sediment concentration and sand encroachment change in Atlantic Sahara platform (SW of Morocco) using multi-temporal remote sensing,” International Journal of Innovation and Applied Studies, vol. 7, no. 3, pp. 972–980, August 2014.
