This book opens a new pathway for global mapping that is focused on a specific land use theme, such as irrigated or rain-fed croplands and classes within these themes. Since croplands use most of the water consumed by humans, specific knowledge of irrigated and rain-fed croplands will be critical for precise estimates of water use. At present and in the coming decades, irrigated and rain-fed cropland area mapping is
crucial for food security studies. Throughout this book, various subjects pertaining to global croplands are discussed comprehensively.
Kategorie: Allgemein
2010 5 Feb
Remote Sensing of Global Croplands for Food Security: Way Forward
Abgelegt unter: Allgemein, Bücher | RSS 2.0 | TB | Tags: Food Security, Remote Sensing | Keine Kommentare
2010 5 Feb
LITHOLOGICAL MAPPING USING LANDSAT ENHANCED THEMATIC MAPPER IN THE CENTRAL EASTERN DESERT, EGYPT: CASE STUDY: AREA SUROUND GABAL AL HADED
Abgelegt unter: Allgemein, Forschung | RSS 2.0 | TB | Tags: basement rocks, Eastern Desert, granites, metavolcanics, serpentinites | Keine Kommentare
In the current study we proposed a new band ratio combination by using Landsat Enhanced Thematic Mapper (ETM+) image. The new proposed band ratio hasbeen tested for its effectiveness in four regions in the study area. This proposedband ratio (5/3, 3/1, 7/5 in RGB respectively) with the help of supervisedclassification technique were succeeded in discrimination of different types ofrock units. The results revealed that by using the proposed band ratio it was soeffective to discriminate different granitic phases (Kadabora region); serpentinitesfrom metasediments and sheared granites (El Mayite region); mollase type Hammamat sediments from metavolcanics and metasediments (Wadi El-Miyahregion); and serpentinites from metavolcanics (El-Baramiya region). The resultsdemonstrate the accuracy and suitability of using this band ratio as a powerfultool in lithological mapping and the data was verified by field investigation andprevious studies.
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2010 2 Feb
Middle East Fertile ground for geospatial
Abgelegt unter: Allgemein | RSS 2.0 | TB | Tags: Geospatial industry, GIS, GPS | Keine Kommentare
Geospatial industry is firmly rooted in Middle East. Political will, abundant resources, high degree of awareness and aspiration to excel have made governments in the region to invest in latest applications, making it a fertile ground for geospatial technologies.
One of the enduring impressions of any visit to the Middle East (ME) is the ‘forest’ of tower cranes. Building activity seems to be never ending in this part of the world. There is another activity, equally vigorous though not as visible and that is the building up of spatial data infrastructures in the states that make up the GCC. Beginning with Qatar, the efforts have spread to all the states and significant progress has been made. As Zul Jiwani points out, the necessary ingredients for this success are a patron, a field clear of the baggage of legacy, a receptive clientele and adequate financial resources. Understanding the user needs and catering to a variety of users from security agencies to the public drives many of these efforts. Each agency has its own way of meeting its user needs. As systems mature, so do users and the needs grow.
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2009 17 Jul
Bayesian and GIS Mapping of Childhood Mortality in Rural Burkina Faso
Abgelegt unter: Allgemein, Medizin | RSS 2.0 | TB | Tags: Childhood Mortality, GIS Mapping | Keine Kommentare
Abstract
Background: Various geographic information systems (GIS) are now widely used to map the distribution of diseases and mortality. However, the mapping of raw mortality rates has been found to be inappropriate since it does not account for the spatial heterogeneity of the population at risk. Bayesian techniques have therefore been suggested as a solution to the problem. Methods: Annual mortality rates for each of the 39 villages of the study area in the Kossi Province in northwest Burkina Faso were calculated using midyear populations of children under five. Two mapping techniques were then used. Firstly, the GIS software ArcView was used to map the crude mortality rates. Secondly, the data were smoothed by the method of empirical Bayes estimation. The geostatistical prediction method of Kriging was then used to spatially interpolate the data for successive years. Results: No spatial pattern is identifiable from the circles representing mortality rates drawn on the map using ArcView. The circles are scattered over the study area and comparing annual distributions between them is difficult. The maps produced by the Bayesian technique also do not show a clear spatial trend pattern. However, they indicate the tendency of villages in the northeastern region to produce higher incidence or risk values, confirming the results of an earlier study reporting a significant cluster of high childhood mortality in the same area.
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2009 17 Jul
The Use of Nigeria SAT-1 and GIS in Assesin the Mineral Potential of Rafin-Gabbas, North Central Nigeria
Abgelegt unter: Allgemein | RSS 2.0 | TB | Tags: Africa, North Central Nigeria | Keine Kommentare
Abstract: This study represents a part of an ongoing research program to evaluate the lithologic mapping capabilities of NigeriaSat-1. Rafin Gabas is located in Nasarawa state and falls within the Younger Granite province of Nigeria. Wolframite and cassiterite have been found to occur within this area.The topographical map of the study area was generated from the SRTM (Shuttle Radar Topography Mission Data). The DEM was converted into a contour map using the ERDAS and ArcView softwares. The NigeriaSat-1 image of the area was subjected to various image processing techniques such as edge enhancement, Principal component analysis and filtering. Samples from wolframite-bearing-quartzite-veins were analysed and old tin mines were studied. The various ancillary data were integrated in ILWIS software. Geological information such as lithological boundaries and lineaments were derived from the NigeriaSat-1 image. The lineaments were found to occur in the NE-SW direction and they range in length from 300 Km to 2.5 Km and some cut across rock boundaries. The results of the XRF analysis show an average of 62% Wo . Tailings from the old mines were observed to 3 contain some amounts of Cassiterite which could be reworked. The various data generated were integrated in a GIS environment and a mineral probability map was produced.
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2009 4 Jul
Geospatial Information and Geographic Information Systems (GIS): Current Issues and Future Challenges
Abgelegt unter: Aktuell, Allgemein | RSS 2.0 | TB | Tags: Future, GIS | Keine Kommentare
Summary
Geospatial information is data referenced to a place—a set of geographic coordinates—which can often be gathered, manipulated, and displayed in real time. A Geographic Information System (GIS) is a computer system capable of capturing, storing, analyzing, and displaying geographically referenced information. In recent years consumer demand has skyrocketed for geospatial information and for tools like GIS to manipulate and display geospatial information. Global Positioning System (GPS) data and their integration with digital maps has led to the popular handheld or dashboard navigation devices used daily by millions. The federal government and policy makers increasingly use geospatial information and tools like GIS for
producing floodplain maps, conducting the Census, mapping foreclosures, and responding to natural hazards such as wildfires and hurricanes. For policy makers, this type of analysis can greatly assist in clarifying complex problems that may involve local, state, and federal government, and affect businesses, residential areas, and federal installations.
Peter Folger
Specialist in Energy and Natural Resources Policy
June 8, 2009
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2009 31 Jan
Assetmanagement- und IT-Lösungen zur Unterstützung des operativen Netzbetriebs in EVU und Industrie
Abgelegt unter: Allgemein | RSS 2.0 | TB | Tags: Analysis, Beratung, Digital Elevation Model, Synersys | Keine Kommentare
Innovative Produkte zum effizienten Betrieb und Unterhalt von Versorgungsnetzen präsentiert die IDS GmbH auf der E-world energy & water vom 10. bis 12. Februar 2009 in Essen (Halle 2, Stand 116). Schwerpunkt sind Instandhaltungs- und Workforce-Management-Lösungen für Versorger und Industrieunternehmen sowie deren Integration in die vorhandene Systemlandschaft, wie z.B. Netzleitsystem, GIS und ERP.
IDS GmbH: Jessica Wettstein
28.01.2009 | 11:14 Uhr
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2008 27 Dez
SENSORSYSTEME 2008 - Sensornetzwerke, Stand der Forschung, Konsequenzen für die Gesellschaft
Abgelegt unter: Allgemein | RSS 2.0 | TB | Tags: Forschung | Keine Kommentare
7th LEIBNIZ CONFERENCE OF ADVANCED SCIENCE
SCHWERPUNKTE der Programmgestaltung sollen sein:
1. Sensorsysteme für Prozess- und Zustandsüberwachung
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Industrieautomatisierung (Einsatz drahtloser sowie lichtleiterverbundener Sensorsysteme)
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Umweltmonitoring (Umweltüberwachung von Flüssen oder unbewohnten Gegenden, Präzisionslandwirtschaft)
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Health-Monitoring für kritische Komponenten, Geräte, Systeme, Anlagen in Industrie, Verkehr und Service
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Sensorsysteme in Wertschöpfungsketten (Überwachung und Optimierung von Produktions- und Logistikprozessen)
2. Energieversorgung und -einsparung
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Autarke Energieversorgung durch mechanische, thermische, Strahlungs- und andere Wandler
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Energiegewinnung und optimierte Verteilung im Netz
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Energiespeicherung in Batterien und Superkondensatoren zur Bufferung
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Energieverbrauchsminimierung durch Hardware und Software
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Energieeinsparung mit Hilfe von Sensorsystemen
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2008 13 Nov
State of the Blogosphere / 2008
Abgelegt unter: Allgemein | RSS 2.0 | TB | Tags: Synersys | Keine Kommentare
State of the Blogosphere / Report 2008
Introduction
Welcome to Technorati’s State of the Blogosphere 2008 report, which will be released in five consecutive daily segments. Since 2004, our annual study has unearthed and analyzed the trends and themes of blogging, but for the 2008 study, we resolved to go beyond the numbers of the Technorati Index to deliver even deeper insights into the blogging mind. For the first time, we surveyed bloggers directly about the role of blogging in their lives, the tools, time, and resources used to produce their blogs, and how blogging has impacted them personally, professionally, and financially. Our bloggers were generous with their thoughts and insights. Thanks to all of the bloggers who took the time to respond to our survey.
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2008 10 Nov
IDRISI Andes Guide to GIS and Image Processing
Abgelegt unter: Allgemein, Workshop | RSS 2.0 | TB | Tags: Handbuch, IDRISI Andes | Keine Kommentare
IDRISI Andes Guide to GIS and Image Processing
April 2006
J. Ronald Eastman/Clark Labs/Clark University

