Abstract
Nowadays Marine Geographical Information Systems (MGIS) play an essential role in several research activities, the most part of them related to solve Geoscience problems. The nautical maps, containing most of the information used by the marine navigators, are used as cartographic base of MGIS and widely referred to Mercator projection. Remotely sensed images can be introduced in MGIS to improve the study outcomes even if they are in a different cartographic representation (generally Universal Transverse of Mercator, UTM). The adaptation of already georeferred remotely sensed images to Mercator projection requires particular care, moreover when also geodetic data are different (i.e. local datum and global datum). This paper is aimed to offer an easy-to-use work-flow that could be adopted every time remotely sensed images are to be introduced in MGIS and overlaid to nautical maps. Particularly the work addresses the implementation and evaluation of reprojection of Landsat 8 imageries, regarding both the gulfs of Naples and Salerno (Italy): a transformation from UTM WGS84 to Mercator Roma40 is applied. The result accuracy encourages the adoption of the proposed work-flow.
Highlights
Marine sciences can benefit of Geographic Information System (GIS) because of their ability to represent great volumes of multidimensional data required by these kinds of science
Hamano et al (2004) use GIS techniques to emphasize the importance of sonar information and the need to spatially map the referenced information such as the relationship between the fish schools and bottom topography
The goal of this paper is to define an easy-to-use work-flow to integrate remotely sensed images into Marine GIS (MGIS) overlaying them to nautical maps
Summary
Marine sciences can benefit of Geographic Information System (GIS) because of their ability to represent great volumes of multidimensional data required by these kinds of science. The most used cartographic bases for MGIS are nautical charts that supply variegate information (i.e. navigation hazards, sea bottom relief, etc). They are produced in Mercator representation that is similar to direct cylindrical projection and derived mathematically (Guastaferro et al 2012). The goal of this paper is to define an easy-to-use work-flow to integrate remotely sensed images into MGIS overlaying them to nautical maps. The last Section describes the conclusion of the paper and remarks the suitable adoption of the proposed work flow for similar applications
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