Search results for " Rain"
showing 10 items of 221 documents
Time Series Analysis of Climatic Vegetation Data in the Oreto Watershed in Sicily
2008
Time series analysis of climate and vegetation variables in the Oreto watershed (Sicily, Italy)
2008
Tra Gaspar Serrano e Giovan Battista Contini: la riforma seicentesca del campanile della cattedrale di Saragozza
2010
La collocazione della campana Valera, rifusa nel 1679, comportò la necessità di costruire un nuovo e più solido campanile per la cattedrale di Saragozza. Dal 1680, infatti, si avvicendarono nella città aragonese diversi artefici che presentarono al Capitolo svariati progetti da sottoporre al giudizio di Francisco de Herrera el Mozo, architetto di Carlo II. La prima pietra della torre fu posta il 4 luglio 1681 su direzione dei maestri locali Jaime Borbón, Francisco López e Gaspar Serrano. L’atteggiamento ostile mostrato da Francisco de Herrera nella valutazione di nuovi progetti costrinsero i canonici a rivolgersi ai più importanti architetti attivi in quel momento a Roma, fulcro del mondo c…
Editorial : Tropical Climate Variability and Change: Impacts in the Amazon
2019
Vast amounts of data from satellites and ground-based systems, and improvements on modeling techniques, allows a better understanding of Earth processes and advances on climate science. The tropics play a key role on global climate processes, and the tropical forest is a sensitive biome in the global hydrological and carbon cycles. In particular, the Amazon region includes about one half of the world’s tropical forest, and relatively small change in Amazon forest dynamics have the potential to substantially affect the rate of climate change. This Research Topics focus on recent finding on the impacts of tropical climate variability and change over the Amazon ecosystem using satellite data, …
Verifica delle equazioni disponibili per la stima della potenza cinetica delle precipitazioni naturali
2016
Nella memoria sono riportati i risultati delle indagini condotte utilizzando le distribuzioni dimensionali delle gocce di pioggia (DSD) rilevate mediante un disdrometro ottico installato, nel periodo Giugno 2006 - Marzo 2014, presso il Dipartimento di Scienze Agrarie e Forestali dell’Università degli Studi di Palermo e nel periodo Luglio 2015-Gennaio 2016 presso la stazione sperimentale di El Teularet in Spagna. Dopo aver aggregato le DSD per classi di intensità differenti in ampiezza, è stata determinata la potenza cinetica associando a ciascun diametro della DSD aggregata la relativa velocità di caduta calcolata mediante una relazione reperita in letteratura. I valori di potenza cinetica …
Dispositivo e metodo di misura delle caratteristiche energetiche delle precipitazioni
2018
Trends of some high quantiles of average and extremes inter-arrival timesand rainfall depths at daily scale for an Italian Sub-Alpine area
2015
Modeling of rainfall statistical structure represents an important research area in hydrology, meteorology, atmospheric physics and climatology, because of the several theoretical and practical implications. The statistical inference of the alternation of wet periods (WP) and dry periods (DP) in daily rainfall records can be achieved through the modelling of inter-arrival time-series (IT), defined as the succession of times elapsed from a rainy day and the one immediately preceding it. It has been shown previously that the statistical structure of IT can be well described by the 3-parameter Lerch distribution (Lch). In this work, Lch was successfully applied to IT data belonging to a sub-al…
Could cattle ranching and soybean cultivation be sustainable? A systematic review and a meta-analysis for the Amazon
2021
Abstract: Tropical forests are being destroyed to make space for agricultural activities with the assumption that they are required to feed the growing global population. Consequently, more sustainable practices are needed to guarantee food security and environmental protection of highly threatened natural biodiversity hotspots like the Amazon rainforest. Cattle ranching and soybean cultivation are by far the greater drivers of land use change and deforestation in the Amazon region. We performed a systematic review of papers related to these two main drivers and a meta-analysis on the effects of sustainable practices on different ecosystem services. The results of the review highlight a lar…
Uncertainty connected with design rainfall for urban flood risk evaluation
2010
Rainfall depth-duration-frequency curves for short-duration precipitation events in Sicily (Italy)
2019
The design criteria of the hydraulic infrastructures, including, for instance, those for flood defense, urban drainage systems, reservoirs spillways and bridges, are based on the coupled analysis of the magnitude of rainfall events for a fixed duration and their estimated annual exceedance probability. The well-known rainfall depth-duration-frequency (DDF) curves, typically derived from the analysis of long historical annual maxima data series, synthesize the relationships between rainfall depth, duration and exceedance probability which is usually expressed as a return period. The time-resolution of rainfall data typically available for the construction of DDF curves and provided by gauges…