International Journal of Environment and Geoinformatics

11-23

Authors: Manoranjan Mishra

The world coastal environment is made of diversified landforms and are also potentially vulnerable to climate variability, delta sinking, extreme events and anthropogenic interferences. Sustainable management of coastal resources and transforming quality ecosystem services to future generation are the goals of Integrated Coastal Zone Management (ICZM). Geographical homogenous unit are the basic implementation locus and back bone of these kinds of integrated management strategy and activities. However, coastal zone management projects in developing world using use arbitrary land-ward and sea-ward boundaries from physical reference as unit of management. The oversimplified fixed distance approaches are not able to map the spatial and temporal changes in coastal systems. The spatio-temporal variations of coastal systems are configured in geomorphic landforms and further that work on interaction between natural forces and anthropogenic inputs. The present research work is an attempt to present a simplified method of regionalization geomorphic landforms using geospatial platforms for delineating Orissa coast into smaller homogenous geographic unit as reference point for future management. Geomorphic landforms are reconstructed using Enhanced Thematic Mapper Plus (ETM+) imagery, Survey of India topomaps, field survey and Digital Elevation Model data at geographic information system (GIS) plat form. Seventy geomorphic features covering an area of 5033.64 km2 were identified and further, regionalized into five homogenous geographic units. The need of time is to recognize unsustainable coastal systems in these homogenous geographic units by fine tuning development parameters and also same time allowing coastal systems to adapt naturally to any kind of variability. Although, the methodology applied to Orissa for delineation homogenous geographic area but it can be replicated to any coast in world.

38-44

Authors: Engin Meriç, Niyazi Avşar, M. Baki Yokeş, Feyza Dinçer, S. Ünsal Karhan, Evrim Kalkan, Volkan Demir

Foraminiferal assemblages of the coasts of Samandağ and Yayladaği (Hatay, SE Turkey), were investigated. Species composition of the assemblage and abundance of some dominant species were determined. Indo-Pacific originated alien species were found to be dominant as it is the case on southwestern coast of Turkey. Amphistegina lobifera Larsen was the most abundant species and Pararotalia calcariformata McCulloch also showed extensive abundance in some sampling sites. Siphonina tubulosa Cushman is recorded first time in the Mediterranean.

56-65

Authors: İsmail Büyüksalih

This paper describes the methodology and results of classifications of Landsat TM data of the Istanbul for the years 1987 and 2007. Nine different land cover/use categories have been used, named built-up area, cropland, barren ground, grassland, scrub/brush, water, ever green, deciduous, cloud and others uses. When the obtained classification results are evaluated as a result of, the 1987 Landsat image overall accuracy of 79 % and a kappa value of 0.76, the 2007 Landsat image overall accuracy of 83.50% and kappa value of 0.81. Thus, Istanbul's change analysis was revealed that the 20-year period. The classifications have provided an economical and accurate way to quantify, map and analyze changes over time in land cover.