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No Thumbnail AvailableBook (series)Geographical information systems and remote sensing in inland fisheries and aquaculture 1991
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The rapidly rising world population is causing both a pressure on land and water space and the need to greatly increase food output. A realistic and practicable way of supplying more food protein is to increase fish production through the extension of aquaculture and inland fisheries. Since production sites for these activities need to satisfy fairly complex location criteria, it is important that suitable areas are identified and preferably designated in advance. The location criteria which con trol aquaculture and inland fisheries are identified and described. These mainly consist of physical and economic considerations though social factors may be important. It is necessary to obtain data to allow for its mapping. The various alternatives for assembling this data are described. Two fields of applied science and technology have recently emerged which, when used in combination, can greatly assist in the spatial decision-making process. The fundamentals of the first of these, remote sensing, are described giving particular emphasis to the commercial, high resolution environmental satellites and the sensing devices which they carry. The manner in which the aerial photographic and digital images which are produced can be processed and applied to the search for optimum fish production locations is described, and then indications are given as to where and how remotely sensed data can best be procured. Once the various types of locational data are assembled, the necessary maps o n which location decisions are made can be drawn up. This task can be greatly expedited by using the second applied science and technology field, that of “geographical information systems”. This emerging methodology relies on the increasing power of the computer to process vast amounts of spatially referenced and encoded data in such a way as to produce any desired maps, tabular or textual output, using a large array of ways to manipulate the data. The required computer hardware and software are reviewed, including examples where appropriate, and we show the considerations which are necessary in setting up a geographical information system for the development and management of aquaculture and inland fisheries. We conclude by giving an divergent selection of relevant case studies. -
Book (stand-alone)Remote sensing techniques for mapping and monitoring mangroves at fine scales 2024
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No results found.Mangrove ecosystems play a critical role in harbouring biodiversity and providing a variety of ecosystem services. The need for developing better techniques for classifying and monitoring mangroves is increasing, especially with the growing demand in blue carbon markets. However, many countries are challenged by the need to improve their mangrove cover estimates to inform decision-making on coastal land use and to guide local conservation efforts including restoration planning. This manual was developed to help overcome this problem by providing guidance, specifically targeted to build capacity for mangrove resource managers on how to use and take advantage of the latest technologies in mapping and monitoring mangroves. It enables collection of data that informs conservation decision-making, guiding the planning of mangrove restoration and protection activities that will ultimately lead to enhanced management and conservation of mangroves. In addition, case studies are presented on estimating mangrove extent, structure, condition and change, using a range of remote sensing-derived sources that are focused on < 5-m spatial resolution. -
Book (stand-alone)Northern and eastern Afghanistan monitoring of rice cultivation using satellite remote sensing and GIS technologies - Final Report 2017
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No results found.Adoption of new strategies for agriculture monitoring, rural land use planning and land management is urgently required to reduce hunger and poverty among rural population of Afghanistan and to assure sustainable food and feed production for future generations. The availability of reliable information on natural resources and agriculture for its monitoring and analysis is indispensable to development and implementation of such strategies. The activities proposed in this document have as overall objective in strengthening/improvement of the national capacity on rice monitoring and analysis by use of geospatial and innovative technology based on Proba-V, Aqua/Terra, Landsat-8, Sentinel-1, Sentinel-2, SPOT-5/6/7 and Pleiades imagery for sustainable development for food security in the country.
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