期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B7(/1-4)
页码：106-112
出版社：Copernicus Publications
摘要：Recurrent disasters that affect densely populated areas subject to high geologic risks are primarily conditioned by the frequency of occurrence of natural events and b y the morphology and structure of the landscape but a prominent cause of the resulting damages is the dishomogeneous and ill structured geographic information available which influences also the mechanism of reaction to the event. An effective defense against natural or man-made disasters always includes a phase of acquisition and updating of environmental informatio n. The knowledge acq uired must be reliable, ho mogeneous and up to date. But in addition to addressing the natural phenomena that may bring on the disasters, the information should be capable of addressing also the available resources to plan effectively protective measures and to make rapid decisions in emergency conditions. The color digital orthophoto, now routinely operational, constitutes today the most effective and economical instrument for studying risks before the occurrence of the disasters: as a georeferenced tool and as a connective link for emergency planning. The paper describes a general model of environmental information by semicontinuous monitoring of large areas at risk using the 1998 Sarno landslide events of southern Italy as an example. The model proposes to standardize, within a quality control system, the management process relative to the situation prior to the event, the phases immediately after the occurrence of the disaster and the planning of post- disaster operations including the estimate o f damages up to the normalization phase
关键词：Photogrammetry; aerial photography; orthophoto; digital orthophoto; hazards; disaster planning
