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Book (stand-alone)An Acoustic Approach to Resource Mapping of Pulau Payar’s Coral Reef - BOBP/REP/87 2000
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No results found.This document discusses the rationale, the conduct and the results of a new approach — the hydro-acoustic method — tried out to map the reef substrate of four islands at Pulau Payar Marine Park, Kedah state, Malaysia. The decision to adopt the method was taken after an October 1997 workshop held under the Special Area Management Plan of the Pulau Payar project, with support from the Bay of Bengal Programme (BOBP). A private company carried out the reef mapping exercise, whose objective was to document the diversity of coral growth forms at Pulau Payar, map and quantify coral resources, and prepare an update on the coral reef status at Pulau Payar, assessing any damage to the reef. The exercise was carried out in view ofthe plans by the Department of Fisheries, Malaysia, to inventory all the reefs in the country’s islands. Over the years, coral survey techniques have depended heavily on the SCUBA method which is considered risky, time-consuming and costly. Further, i t is impossible to produce a broadscale map with the SCUBA diving method. The author believes that the “new, repeatable and non-destructive hydro-acoustic survey approach” heralds a new era in corat studies. -
Book (stand-alone)Groundwater search by remote sensing: A methodological approach 2003
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No results found.In the framework of the technical assistance provided to the Groundwater Unit (GWU) of the FAO-implemented IRAQ/SCR/986 "Three-year Agricultural Programme" for the three Iraqi Northern Governorates, a comprehensive remote sensing/GIS methodology was developed to identify potential sites for groundwater exploitation. The approach used in the study was a development of the traditional standard sequence of drainage, landforms, cover and lineaments analyses, to which several improvements and addit ions were made, such as: (1) all data were in digital format and stored in a geo-database as GIS layers; (2) all analyses and interpretations were performed directly from the computer screen; (3) on the basis of a previous positive experience, thermal lineaments analysis was performed; (4) a comprehensive geo-database was created including all GIS layers which were considered of interest for the study; (5) by using the potentiality of GIS software, which allows stacking of georeferenced data f or comparison and integration and data query for subsetting the needed information, selected layers of the database were superimposed on the Landsat image kept as background and a logical series of observations was made, leading to a well-substantiated set of interpretation assumptions. The creation of a GIS database, including the data format and entry, is a time-consuming and laborious exercise, as high accuracy is definitely mandatory. However, once the database is complete, interpretation of features leading to selection of promising sites for groundwater search is carried out easily and quickly. This as a result of data availability of all needed information in a GIS environment. Thirty test areas, selected by the field team, were investigated and 198 promising sites were identified for further ground survey and subsequent drilling. -
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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