*a.chiaudani, *g. tridello, m. borin**, a. bonamano **, p. rosso***, f.vettore*** *arpav: veneto...
TRANSCRIPT
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*A.Chiaudani, *G. Tridello, M. Borin**, A. Bonamano **, P. Rosso***, F.Vettore***
*ARPAV: Veneto Region Environment protection and prevention agency
**Padova University – Environmental Agronomy and Vegetal Production Department
***Veneto Region : Regional direction for the agroindustrial policies
CLIMATIC ADVERSITIES IN VENETO REGION AND CROP YELD LOSSES
reporting: A. Chiaudani – ARPAV
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NATIONAL SOLIDARITY FUND COMPENSATIONS IN THE PERIOD 1978-2003;
In this work we have collected the administrative documentation of the adverse atmospheric events that resulted in compensation for damage, and available information in terms of:
• their temporal frequency• their territorial distribution • their risk calendar • the average vendible gross production damage at
municipal level
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CALAMITOUS EVENTS COMPENSATED BY THE MINISTRY OF AGRICULTURAL AND FORESTALL POLICIES
01 HAIL 07 SIROCCO WINDS
02 WINTER FROST 08 EARTHQUAKE
03 PERSISTENT RAINFALL 09 TORNADO
04 DROUGHT 10 SPRING AND AUTUMM FROST
05 SNOW EXCESS 11 STRONG WINDS
06 ALLUVIAL RAINFALL 12 SEA STORM
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FREQUENCY OF COMPENSATED ATMOSPHERIC EVENTS- 1978-2003
Violent rainfall1%
Hailstorm75%
Spring and autumn frost
3,2%
Landslip0,8%
Snow excess1%
Winter Frost0,4%
Sea storm0,4%
Drought1,6%
Strong wind2,2%
Alluvial rainfall5,8%
Tornado13%
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N° OF COMPENSATED MUNICIPALITIES1978-2003
hailstrom59,7%
spring and autumn frozen
1,6%
landsplip1,6%
seastorm0,4%
alluvial rainfall3,1%
strong winds3,7%
winter frost5,8%
tornados7.2%
snow excess7,5%
drought9,2%
persistent rainfall0,1%
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ADVERSITIES AND COMPENSATED MUNICIPALITIES IN THE PERIOD 1978-2003
Adversitiesn° events
in 26 years
n° compensated
municipalitiesin 26 years
n°events/year
n° compensated
municipalities/year
ITA26
Hailstorm 358 3423 13.8 131.7 9.6
Tornado 67 413 2.6 15.9 6.2
Alluvial rainfall 29 179 1.1 6.9 6.2
Spring and autumn frost 16 90 0.6 3.5 5.6
Violent winds 11 211 0.4 8.1 19.2
Drought 8 529 0.3 20.3 66.1
Landslip 4 91 0.2 3.5 23
Snow excess 3 428 0.1 16.5 142.7
Persistent rainfall3 8 0.1 0.3 2.7
Winter Frost 2 334 0.1 12.8 167
Seastorm 2 23 0.1 0.9 11.5
total 503 5729 19.3 220.3 11.4
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EVENTS LASTING SEVERAL DAYS IN THE PERIOD 1978-2003
Adversitiesn°events
1978-2003n°days
1978-2003n°days/event n°days/year
Alluvial rainfall 29 61 2.1 2.3
Spring and autumn frost 16 62 3.9 2.4
Violent winds 11 47 4.3 1.8
Drought 8 929 116.1 35.7
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-GRAPEVINE COMPENSATED EVENTS - 1978-2003
adversities n° events Frequency (%)
hailstorm 272 91
tornado 13 4
spring frost 10 3
drought 4 1
alluvial rainfall 3 0.6
winter frost 1 0.0..
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28 AUGUST 2003 HAILSTORM EVENT: MUNICIPALITIES INJURED
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HAILSTONES SIZES 28 AUGUST 2003
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HAILSTORM OVER PADOVA 28 AUGUST 2003
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28 AUGUST 2003 HAILSTORM EVENT:COMPENSATED GRAPEVINE VENDIBLE GROSS PRODUCTION
ha POTENTIAL VGP (euro) % DAMAGECOMPENSATION
(euro)
8 MUNICIPALITIES 156 755.689,6 56,4% 426.246,6
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UPPER-LEVEL COLD AIR PASSAGE FROM THE NORTH OVER LOW-LEVEL WARM AIR: SET UP OF LARGE INSTABILITY
SURFACE CHART 28 AUGUST
28 AUG 2003 HAILSTORM EVENT:SINOPTYC METEOROLOGICAL SITUATION -
VISIBILE SATELLITE 8 P.M. LOCAL TIME
padova
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28 AUG 2003 HAILSTORM EVENT:WHITING STABILITY INDEX
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28 AUG 2003 HAILSTORM EVENT:PRESENCE OF A CONVERGENCE LINE AT SURFACE LEVEL
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-RADAR IMAGES OF HAILSTORM ON 28 AUG 03-
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INTENSE AND HIGH-REACHING CONVECTIVE SYSTEM FAVOURABLE FOR
THE FORMATION OF LARGE SIZE HAILSTONES, (LONG SUSPENSION
PERIOD)
REFLECTIVITY AND VERTICAL PROFILE: 60 dBZ a 7 km height45 dBZ a 12 km di height
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FUTURE DEVELOPMENTS
• increase of the territorial scale analysis at “site level”
• description of the relationship between single cultivation phenology and damage, and single atmospheric adversity
• synoptic study of single adversities behavior, supported from remote sensing techniques, especially radar images for
hail
• real-time radar images monitoring, in function of the organization of a nowcasting alert system
• calculation of the “adversity risk” in function of frequency, damage, and event probability to support the elaboration of
insurance policies.