Presentation of Noah's Ark project

23 Pages·2009·1.54 MB·English

“In and Out Air Strategies.
From Climate Change to Microclimate.
Library, Archives and Museum
Preservation Issues”
5-6 March 2009
Bibliothèque nationale de France
http://www.ifla.org/VI/4/pac.htm
http://noahsark.isac.cnr.it/
TTHHEE NNOOAAHH’’SS AARRKK PPRROOJJEECCTT
GGlloobbaall cclliimmaattee cchhaannggee iimmppaacctt oonn tthhee
bbuuiilltt hheerriittaaggee
C.M. Grossi
[email protected]
Pollution:
Important decay mechanism
in cultural heritage materials
Declining of acidic
http://www.airquality.co.uk/archive/reports/cat12/The_National_Atmospheric_Emissions_Inventory.pdf
Pollutant emissions
Climate is a factor of increasing importance
http://www.airquality.co.uk/archive/reports/
TheNationalAtmosphericEmissionsInventory.7
in the weathering of buildings.
Future global climate change
impact on built heritage and
cultural landscapes
EU project: Partners different countries
HHEERRIITTAAGGEE CCLLIIMMAATTOOLLOOGGIIEESS::
NNeeeedd ttoo ttrraannssffoorrmm ttrraaddiittiioonnaall mmeetteeoorroollooggiiccaall
ppaarraammeetteerrss iinnttoo tthhoossee rreelleevvaanntt ttoo ccuullttuurraall hheerriittaaggee
PROJECT OUTPUT
Data base – maps - vulnerability atlas
Parameters:
Temperature, water,
combined derived parameters
Materials:
Stone/masonry materials, wood,
metals, glass
Model:
HadCM3, HadRM3,
A2 scenario:
T, RH, precipitation
Europe, and single grid squares:
Central England
Vulnerability atlas: OUTPUT
F
uture projections of potential damage
Amplification via phase change:
Sharp phase boundaries
Climate change
seems subtle
Freeze-thaw and salt
crystallisation-dissolution:
phase transitions at precise
thermo-hygrometric
conditions
Small changes in climate can show big
effects – i.e. number of events.
Freeze/thaw
80
Days above freezing
50 60
@ Narssarssuaq
Czech Republic
40
40
r
a 20 Frost shattering
30
e
y of porous stone
/
s
e
0
l
c 20
y
1800 1900 2000 2100
c
10
Central England
0
1950 2000 2050 2100
salt crystallisation
Humidity cycles: RH 75.3 % transition for c2
sodium chloride
80
60
s
n
o
i
t
i 40
s
n
a
r
T
20
Czech Republic
Central England
0
1950 2000 2050 2100
Hadley Model (HCM3a2)
Diapositive 9
c2 c; 14/01/2007