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TECHNICAL NOTE
Received 2007-11-03
• Thawing of ice reserves (resulting in rising of see level) • The first problem is the traditional wind measuring method.
This consists of measuring in each hour or one and half hour
Impacts of precipitation changes the average wind speed in the last ten minutes. Naturally this
• Bigger and abrupt floods (higher water levels in lakes and would not the largest wind speed for the measuring period.
rivers) • In addition we need not the average wind speed, but the wind
• Changing of ground water level (foundation problems) impulse of 3 sec duration. There should be cleared up the
relation between the wind speed and wind impulse.
• Heavy abrupt snow falls
• Another open question is the frequency and distribution of
• Heavy hails (precipitation in the form of ice lumps) maximal wind speeds.
Impacts of higher wind speed • The method of interpolation between 1961-1990 and 2071-
2100 average wind speeds should be investigated too.
• Higher wind impulses
• Very important question is to determine the relation between
• Wind intensity increase is time depended the wind profile (the wind speed changes in elevation) and the
• Different wind profiles changing value of the wind speed.
Fig. 2. Seasonal precipitation change (%) in the Carpathian basin for 2071- Dispersion σ =12-20%
2100 based on European regional model simulation (Bartholy et al.)
7 Conclusions
The structural engineers should take into account among oth-
ers the obvious climate change and its impacts on structures.
The task is not easy: to work out the answers to the challenges of
the climate change, namely the adaptation and mitigation mea-
sures for old and new structures of buildings and civil engineer-
ing objects. Finding the optimal solution(s) would be even more
complicated, but this is our task and our responsibility.
References
1 IPCC Climate Change 2007, Climate Change Impacts, Adaptation and Vul-
nerability,: Summary for Policymakers, April 6 2007, available at (http:
//www.ipccc/pub/reports.htm).
2 Bartholy J, Pongrácz R, Gelybó Gy, Regional Climate Change Expected
in Hungary for 2071-2100, 2007. Appl.Ecology and Environmental Research
5(1):1-17.
3 Lenkei P, Concrete Structures and the Probable Climate Change: 2nd fib
Congress, Doppieroce, Italy, 2006. Condensed Papers (2) 564-565.