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BookletFrom Space to Farm: Characterization of Small Farms Using Remote Sensing Data 2021
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No results found.This publication describes the analytical process carried out under the European Union-funded SALSA project which enabled the development of a European map of the distribution of small farms at the NUTS-3 level and assessed the capabilities and usefulness of Copernicus Sentinel-1 and Sentinel-2 satellites for small farms monitoring, specifically in providing information about crop types, crop area extent and crop production. -
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. -
InfographicFAO Remote Sensing Survey reveals tropical rainforests under pressure as agricultural expansion drives global deforestation 2021
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No results found.FAO's Remote Sensing Survey provides novel information on land use change dynamics and deforestation drivers. The survey was conducted as part of the Global Forest Resources Assessment 2020 and in close cooperation with countries. This participatory sample-based exercise produced independent and consistent remote-sensing based estimates on land use change dynamics and their key drivers at global, regional and biome levels.
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