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Displaying 1046 - 1050 of 1605SDI-based business processes: A territorial analysis web information system in Spain
Spatial Data Infrastructures (SDIs) provide access to geospatial data and operations through interoperable Web services. These data and operations can be chained to set up specialized geospatial business processes, and these processes can give support to different applications. End users can benefit from these applications, while experts can integrate the Web services in their own business processes and developments.
Tracing crop-specific sediment sources in agricultural catchments
A Compound Specific Stable Isotope (CSSI) sediment tracing approach is evaluated for the first time in an agricultural catchment setting against established geochemical fingerprinting techniques. The work demonstrates that novel CSSI techniques have the potential to provide important support for soil resource management policies and inform sediment risk assessment for the protection of aquatic habitats and water resources.
Mapping impervious surfaces from superresolution enhanced CHRIS/Proba imagery using multiple endmember unmixing
In this paper, the potential of superresolution (SR) image reconstruction methods for sub-pixel land-cover mapping in dense urban areas is studied. A multiple endmember approach (MESMA) is used for unmixing both original hyperspectral CHRIS/Proba and SR enhanced CHRIS/Proba data. Validation based on high resolution orthophotos (25cm) shows that land-cover fraction maps generated from SR-enhanced CHRIS/Proba data (9m) have a lower overall fractional error compared to the land-cover fractions produced from the original CHRIS data (18m), when validating both results at the 18m resolution.
role of forest ecosystems in community-based coping strategies to climate hazards: Three examples from rural areas in Africa
In developing countries, forests play an important role in supplying goods and services. These ecosystems are under many stresses due to unsustainable management practices, lack of clarity on tenure and access rights, and persistent pressure for land-use change. Climate change is exacerbating the impact of these stresses on both forest ecosystems and forest dependent people. What are the current forest coping strategies of different livelihoods? What is the role of forest ecosystems in increasing the resilience of rural communities?
Assessment of hyperspectral MIVIS sensor capability for heterogeneous landscape classification
The potential and limitations of the hyperspectral remote sensing MIVIS sensor (Multispectral Infrared Visible Imaging Spectrometer) in classifying heterogeneous landscapes are explored in this study. In order to quantify the discriminant information derived from selected MIVIS subsets we classified a monitored scenario by progressively increasing the feature space dimensionality.