2 research outputs found
IV Encontro de Sistemas de Informação Geográfica : Aplicações SIG em Recursos Agro-Florestais e Ambientais : livro de resumos
Esta publicação reúne os resumos das comunicações apresentadas no IV Encontro de Sistemas de Informação
Geográfica, sob a forma de comunicações orais e pósteres e inclui, ainda, o programa científico do encontro
Remote sensing technologies for the assessment of marine and coastal ecosystems
Abstract
This chapter reviews the Remote Sensing (RS) technologies that are particularly
appropriate for marine and coastal ecosystem research and management.
RS techniques are used to perform analysis of water quality in
coastal water bodies; to identify, characterize and analyze river plumes; to
extract estuarine/coastal sandy bodies; to identify beach features/patterns;
and to evaluate the changes and integrity (health) of the coastal lagoon
habitats. For effective management of these ecosystems, it is essential to
have satellite data available and complementary accurate information
about the current state of the coastal regions, in addition to well-informed
forecasts about its future state. In recent years, the use of space, air and
ground-based RS strategies has allowed for the rapid data collection,
Image processing (Pixel-Based and Object-Based Image Analysis (OBIA)
classification) and dissemination of such information to reduce
vulnerability
to natural hazards, anthropic pressures, and to monitoring
essential ecological processes, life support systems and biological
diversityinfo:eu-repo/semantics/submittedVersio