CLIMATIC ADVERSITIES IN VENETO REGION
AND CROP YELD LOSSES
*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
reporting:
A. Chiaudani – ARPAV
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
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
FREQUENCY OF COMPENSATED ATMOSPHERIC EVENTS1978-2003
Violent rainfall
1%
Drought
1,6%
Snow excess
1%
Landslip
0,8%
Winter Frost
0,4%
Sea storm
0,4%
Strong wind
2,2%
Spring and
autumn frost
3,2%
Alluvial rainfall
5,8%
Tornado
13%
Hailstorm
75%
N° OF COMPENSATED MUNICIPALITIES
1978-2003
alluvial rainfall
3,1%
spring and
autumn frozen
1,6%
landsplip
1,6%
seastorm
0,4%
persistent rainfall
0,1%
strong winds
3,7%
winter frost
5,8%
tornados
7.2%
snow excess
7,5%
drought
9,2%
hailstrom
59,7%
ADVERSITIES AND COMPENSATED MUNICIPALITIES
IN THE PERIOD 1978-2003
n°
compensated
municipalities
in 26 years
n°
compensated
municipalities
/year
Adversities
n° events
in 26 years
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
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
3
428
0.1
16.5
142.7
3
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
Spring and
autumn frost
Snow excess
Persistent rainfall
n°events/year
ITA26
EVENTS LASTING SEVERAL DAYS
IN THE PERIOD 1978-2003
Adversities
n°events
1978-2003
n°days
1978-2003
n°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
-GRAPEVINE COMPENSATED EVENTS 1978-2003
adversities
hailstorm
n° events
Frequency (%)
272
91
tornado
13
4
spring frost
10
3
drought
4
1
alluvial rainfall
3
0.6
winter frost
1
0.0..
28 AUGUST 2003 HAILSTORM EVENT:
MUNICIPALITIES INJURED
HAILSTONES SIZES
28 AUGUST 2003
HAILSTORM OVER PADOVA
28 AUGUST 2003
28 AUGUST 2003 HAILSTORM EVENT:
COMPENSATED GRAPEVINE VENDIBLE GROSS PRODUCTION
8
MUNICIPALITIES
ha
POTENTIAL VGP (euro)
% DAMAGE
COMPENSATION
(euro)
156
755.689,6
56,4%
426.246,6
28 AUG 2003 HAILSTORM EVENT:
SINOPTYC METEOROLOGICAL SITUATION UPPER-LEVEL COLD AIR PASSAGE FROM THE NORTH OVER LOWLEVEL WARM AIR: SET UP OF LARGE INSTABILITY
SURFACE CHART 28 AUGUST
padova
VISIBILE SATELLITE 8 P.M. LOCAL TIME
28 AUG 2003 HAILSTORM EVENT:
WHITING STABILITY INDEX
28 AUG 2003 HAILSTORM EVENT:
PRESENCE OF A CONVERGENCE LINE AT SURFACE LEVEL
-RADAR IMAGES OF HAILSTORM ON 28 AUG 03-
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 height
45 dBZ a 12 km di height
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.