Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/891B687C-CD72-439F-8FD1-3B8280641163 | - |
| Αναγνωριστικό | https://doi.org/10.5194/nhess-12-881-2012 | - |
| Γλώσσα | en | - |
| Μέγεθος | 10 pages | en |
| Τίτλος | Lightning activity, rainfall and flash flooding. Occasional or interrelated events? A case study in the island of Crete | en |
| Δημιουργός | Tsanis Giannis | en |
| Δημιουργός | Τσανης Γιαννης | el |
| Δημιουργός | Lagouvardos, Konstantinos | en |
| Δημιουργός | Kotronias, Vassilios , 1964- | en |
| Δημιουργός | Koutroulis, Aristotelis G | en |
| Δημιουργός | Gryllakis Emmanouil | en |
| Δημιουργός | Γρυλλακης Εμμανουηλ | el |
| Περίληψη | The majority of cyclones passing over Crete in late autumn to early winter originate from southwest, west and northwest and are of varying size and intensity. A number of these cyclones cause flash floods. The present study reports the possible relationships between lighting activity and high precipitation related to flash flood events. In this study an attempt was made to correlate the lightning number and location, recorded by the ZEUS lightning detection system, with the rainfall characteristics for sixteen rain events (4 flood and 12 non-flood events) on the island of Crete, during the period 2008-2009. Spatiotemporal analysis of rain and rain rate with flash count was performed with respect to distance (radius) of flashes from raingauge location at various temporal scales, in order to examine the correlation of accumulated rainfall and lightning activity. The maximum attained statistical significant correlation was obtained within a circular area of an average radius of 15 km around the raingauge, and an average time lag of flash count prior precipitation accumulation of 15 min. The maximum correlation between the lightning and rainfall data is obtained for shorter time lags for the flood events (15 min) than the non-flood events (25 min), that could reflect the faster propagation of flood triggering storms due to high convective activity. Results show increased lightning activity occurring during flood triggering storms, by an average of four times higher. Furthermore, there is evidence that the number of flashes that occur during a precipitation event is related to precipitation depth when the latter is adequate to produce a flood event. Differences between flood and non-flood producing storms need to be further assessed by analyzing more independent parameters, including the synoptic conditions and dominant flash flood hydrological generating processes. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-10-09 | - |
| Ημερομηνία Δημοσίευσης | 2012 | - |
| Θεματική Κατηγορία | Meteorological observatories | en |
| Θεματική Κατηγορία | Meteorology--Observatories | en |
| Θεματική Κατηγορία | Observatories, Meteorological | en |
| Θεματική Κατηγορία | Stations, Meteorological | en |
| Θεματική Κατηγορία | Weather stations | en |
| Θεματική Κατηγορία | meteorological stations | en |
| Θεματική Κατηγορία | meteorological observatories | en |
| Θεματική Κατηγορία | meteorology observatories | en |
| Θεματική Κατηγορία | observatories meteorological | en |
| Θεματική Κατηγορία | stations meteorological | en |
| Θεματική Κατηγορία | weather stations | en |
| Θεματική Κατηγορία | Forecasting, Weather | en |
| Θεματική Κατηγορία | Short range weather forecasting | en |
| Θεματική Κατηγορία | Weather--Forecasting | en |
| Θεματική Κατηγορία | Weather prediction | en |
| Θεματική Κατηγορία | weather forecasting | en |
| Θεματική Κατηγορία | forecasting weather | en |
| Θεματική Κατηγορία | short range weather forecasting | en |
| Θεματική Κατηγορία | weather prediction | en |
| Βιβλιογραφική Αναφορά | A. G. Koutroulis, M. G. Grillakis, I.K. Tsanis, V. Kotroni, K. Lagouvardos, " Lightning activity, rainfall and flash flooding - occasional or interrelated events? A case study in the island of Crete ,"Na. Hazards and Ear. Sys. Sciences ,vol. 12,no.4,pp.881-891, 2012.doi: 10.5194/nhess-12-881-2012 | en |
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