If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

A flexible multi-source spatial-data fusion system for environmental status assessment at continental scale

$61.74 plus tax (Refund Policy)

Buy Article:

Abstract:

The monitoring of the environment's status at continental scale involves the integration of information derived by the analysis of multiple, complex, multidisciplinary, and large-scale phenomena. Thus, there is a need to define synthetic Environmental Indicators (EIs) that concisely represent these phenomena in a manner suitable for decision-making. This research proposes a flexible system to define EIs based on a soft fusion of contributing environmental factors derived from multi-source spatial data (mainly Earth Observation data). The flexibility is twofold: the EI can be customized based on the available data, and the system is able to cope with a lack of expert knowledge. The proposal allows a soft quantifier-guided fusion strategy to be defined, as specified by the user through a linguistic quantifier such as 'most of'. The linguistic quantifiers are implemented as Ordered Weighted Averaging operators. The proposed approach is applied in a case study to demonstrate the periodical computation of anomaly indicators of the environmental status of Africa, based on a 7-year time series of dekadal Earth Observation datasets. Different experiments have been carried out on the same data to demonstrate the flexibility and robustness of the proposed method.

Keywords: Continental scale; Environmental indicator; Fuzzy integration; OWA; Satellite data

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/13658810701703183

Affiliations: 1: IREA CNR, Institute for Electromagnetic Sensing of the Environment, Milan, Italy 2: IDPA CNR, Institute for the Dynamics of Environmental Processes, I24044 Dalmine (Bg), Italy 3: European Commission-DG Joint Research Centre, Institute for Environment and Sustainability, I-21020 Ispra (VA), Italy

Publication date: January 1, 2008

More about this publication?
Related content

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more