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Διάλεξη, 5 Νοεμβρίου ΙΜΣ



Το Εργαστήριο Γεωφυσικής Τηλεπισκόπισης και Αρχαιοπεριβάλλοντος
του Ινστιτούτου Μεσογειακών Σπουδών-ΙΤΕ
σας καλεί στη διάλεξη


του Γιώργου Αλεξανδράκη
μεταδιδακτορικού ερευνητή ΙΥΜ-ΙΤΕ
με θέμα :

PAST, PRESENT AND FUTURE COASTAL CHANGES
AND THEIR IMPACT OF CULTURAL HERITAGE SITES:
RISK MANAGEMENT AND MITIGATION


την Πέμπτη, 5 Νοεμβρίου 2015 και ώρα 19.00
στην αίθουσα διαλέξεων του ΙΜΣ
Νικ. Φωκά 126-130 (παλιά πόλη), Ρέθυμνο


 







PAST, PRESENT AND FUTURE COASTAL CHANGES AND THEIR IMPACT OF CULTURAL HERITAGE SITES: RISK MANAGEMENT AND MITIGATION

The early Holocene retreat of the ice sheets led to an eustatic increase in sea levels, while in Upper Holocene, the sea-level changes were controlled by the tectonism. During the last 5000 years, the first permanent settlements were developed and financial, social, and cultural relations were evolved. The geomorphological features and the physical advantages of coastal areas were important factors for establishing settlements. Sea-level changes often modified the palaeomorphology of the coasts, resulting in submersion or uplift of coastal constructions or even of entire settlements. During the past decades, numerous of archaeological issues, concerning the modern position of ancient coastal settlements, have been resolved or approached, contributing to the palaeomorphological reconstruction of such areas.

In modern times, the many factors that control the evolution and shaping of the coastline are still active. These include the changing rates in sea level rise, which, in turn, influence the nature and the severity of coastal erosion, a key factor in transforming the coastal landscape. Also, a wide range of climatic conditions including atmospheric pressure, temperature, wind speed and rainfall have influence upon the geomorphology of the coastline.

Climate change impacts are functioning as risk multipliers to problems which are already apparent. Climate stressors can directly affect cultural heritage sites. Sea level rise threatens coastal monuments with increased erosion and salt water intrusion. More frequent and intense storms and flood events can damage structures that were not designed to withstand prolonged structural pressure, erosion and immersion.

Risks affecting cultural heritage may stem from exposure to one or more hazards. Therefore it is important to facilitate a holistic understanding of risks affecting cultural heritage. This implies that we understand the inherent link of physical vulnerability of cultural heritage to that resulting from social, economic and “development” processes.

Risk is defined as “the probability of harmful consequences, or expected losses, resulting from interaction between vulnerability and exposure”. Therefore, the vulnerability of the cultural heritage to climatic change and erosion is estimated as the probability of risk. However, vulnerability is not only a “product” but a “process” as well, resulting from various factors, which contribute towards its change over time. Therefore, it is needed to be assessed whether vulnerability has increased, decreased or reinforced over time. It is also important to understand the term “disaster” and articulate its relationship to “risk”. Another related issue is that human perspective for disasters is essential, especially when dealing with cultural heritage at risk.

Comprehensive understanding of risks can build a basis for taking proactive measures to control these vulnerability processes so as to reduce the anticipated risks in the future. In terms of Cultural Heritage Risk Management, this implies a new paradigm for conservation, which is proactive rather than being reactive and is aimed at protecting the present of ‘the past’ by anticipating its future.



Attachment: Afisa_Lecture_Alexandraksi_5November2015.doc
Description: MS-Word document



ΛΙΣΤΑ ΚΟΙΝΟΠΟΙΗΣΕΩΝ ΣΤΗ ΦΙΛΟΣΟΦΙΚΗ ΣΧΟΛΗ.