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Sutera, A.
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- PublicationOpen AccessThe analysis of the Standardized Precipitation Index in the Mediterranean area: regional patterns(2001-10)
; ; ; ; ; ;Bordi, I.; Dipartimento di Fisica, Università La Sapienza, Roma, Italy ;Frigio, S.; Dipartimento di Matematica e Fisica, Università di Camerino (MC), Italy ;Parenti, P.; Dipartimento di Matematica e Fisica, Università di Camerino (MC), Italy ;Speranza, A.; Dipartimento di Matematica e Fisica, Università di Camerino (MC), Italy ;Sutera, A.; Dipartimento di Fisica, Università La Sapienza, Roma, Italy; ; ; ; n the present paper we propose a method to assess regional drought by using rain-gauge observations. In particular, we analyse the rainfall on the Marche region. We diagnose drought by means of the Standardized Precipitation Index, specifically analysing the period from January 1948 to December 1981. We present a preliminary comparison of these results with those obtained using large-scale precipitation data. We obtain a good agreement between the large-scale analysis and the local (regional scale) observations.126 1909 - PublicationOpen AccessOn baroclinic adjustment of a radiative convective atmosphere(1998-10)
; ; ;Bordi, I.; Dipartimento di Matematica e Fisica, Universitá di Camerino, Italy ;Sutera, A.; Dipartimento di Fisica, Universitá La Sapienza, Roma, Italy; In this paper we study the implication of the hypothesis that the radiative convective equilibrium climate is neutral with respect to baroclinic eddies. If such neutral state is achieved by tropopause height readjustment, we find that the sensitivity of the climate equilibrium to baroclinic eddies is comparable to the sensitivity to water vapor profile. Multiple solutions to the readjusted tropopause are found by decreasing stratospheric static stability.129 114 - PublicationOpen AccessThe analysis of the Standardized Precipitation Index in the Mediterranean area: large-scale patterns(2001-10)
; ; ; ; ; ;Bordi, I.; Dipartimento di Fisica, Università La Sapienza, Roma, Italy ;Frigio, S.; Dipartimento di Matematica e Fisica, Università di Camerino (MC), Italy ;Parenti, P.; Dipartimento di Matematica e Fisica, Università di Camerino (MC), Italy ;Speranza, A.; Dipartimento di Matematica e Fisica, Università di Camerino (MC), Italy ;Sutera, A.; Dipartimento di Fisica, Università La Sapienza, Roma, Italy; ; ; ; Problems related to the identification and monitoring of drought are investigated. In particular, drought conditions in Italy are examined using the Standardized Precipitation Index (SPI) on different time scales for August 2000. Historical reconstruction of drought events is also shown for particular locations of Italy for the last fifty years. These preliminary applications show interesting results and demonstrate that the index considered is a tool that should be used operationally as part of a national drought watch system in Italy to monitor drought conditions objectively. An example of a monthly bulletin of drought for Italy is also shown.261 832