Search results for "Planetary Science"

Numerical study of the October 2007 flash flood in the Valencia region (Eastern Spain): the role of orography

2010

Abstract. A torrential rain event took place in the Valencia region in October 2007, mainly affecting coastal areas and nearby mountains in the center-south of the region, in northern Alicante province. More than 400 mm in 24 h were recorded at some stations in these areas, with lower accumulations in the rest of the region where rainfall was less intense. In the first part of this work a description of the meteorological situation is given. The synoptic frame of the event is characterised by an advection of easterly maritime winds across the Western Mediterranean, lasting for at least 48 h, driving moist air towards the Iberian Peninsula eastern coast and the presence of an upper level iso…

Predicting storm-triggered debris flow events: application to the 2009 Ionian Peloritan disaster (Sicily, Italy)

2015

Abstract. The main assumption on which landslide susceptibility assessment by means of stochastic modelling lies is that the past is the key to the future. As a consequence, a stochastic model able to classify past known landslide events should be able to predict a future unknown scenario as well. However, storm-triggered multiple debris flow events in the Mediterranean region could pose some limits on the operative validity of such an expectation, as they are typically resultant of a randomness in time recurrence and magnitude and a great spatial variability, even at the scale of small catchments. This is the case for the 2007 and 2009 storm events, which recently hit north-eastern Sicily …

Estimation of synthetic flood design hydrographs using a distributed rainfall–runoff model coupled with a copula-based single storm rainfall generator

2014

Abstract. In this paper a procedure to derive synthetic flood design hydrographs (SFDH) using a bivariate representation of rainfall forcing (rainfall duration and intensity) via copulas, which describes and models the correlation between two variables independently of the marginal laws involved, coupled with a distributed rainfall–runoff model, is presented. Rainfall–runoff modelling (R–R modelling) for estimating the hydrological response at the outlet of a catchment was performed by using a conceptual fully distributed procedure based on the Soil Conservation Service – Curve Number method as an excess rainfall model and on a distributed unit hydrograph with climatic dependencies for the …

Advanced radar-interpretation of InSAR time series for mapping and characterization of geological processes

2011

Abstract. We present a new post-processing methodology for the analysis of InSAR (Synthetic Aperture Radar Interferometry) multi-temporal measures, based on the temporal under-sampling of displacement time series, the identification of potential changes occurring during the monitoring period and, eventually, the classification of different deformation behaviours. The potentials of this approach for the analysis of geological processes were tested on the case study of Naro (Italy), specifically selected due to its geological setting and related ground instability of unknown causes that occurred in February 2005. The time series analysis of past (ERS1/2 descending data; 1992–2000) and current…

Potential of historical meteorological and hydrological data for the reconstruction of historical flood events – the example of the 1882 flood in sou…

2009

Abstract. This paper presents a hydrometeorological reconstruction of the flood triggering meteorological situation and the simulation of discharges of the flood event of December 1882 in the Neckar catchment in Baden-Württemberg (southwest Germany). The course of the 1882 flood event in the Neckar catchment in southwest Germany and the weather conditions which led to this flood were reconstructed by evaluating the information from various historical sources. From these historical data, daily input data sets were derived for run-off modeling. For the determination of the precipitation pattern at the end of December 1882, the sparse historical data were modified by using a similar modern day…

Interpolative mapping of mean precipitation in the Baltic countries by using landscape characteristics

2011

Maps of the long-term mean precipitation involving local landscape variables were generated for the Baltic countries, and the effectiveness of seven modelling methods was compared. The precipitation data were recorded in 245 meteorological stations in 1966–2005, and 51 location-related explanatory variables were used. The similarity-based reasoning in the Constud software system outperformed other methods according to the validation fit, except for spring. The multivariate adaptive regression splines (MARS) was another effective method on average. The inclusion of landscape variables, compared to reverse distance-weighted interpolation, highlights the effect of uplands, larger water bodies …

Peer review report 1 on âControls on runoff generation along a steep climatic gradient in the Eastern Mediterraneanâ

2017

Impact of climate change on the timing of strawberry phenological processes in the Baltic States

2016

Climate change has been shown to impact aspects of agriculture and phenology. This study aims to quantify changes in the timing of garden strawberry blooms and harvests in the Baltic States using Regional Climate Models (RCMs). First, parameters for a strawberry phenology model based on the growing degree day (GDD) methodology were determined. Growing degree days were calculated using a modified sine wave method that estimates the diurnal temperature cycle from the daily maximum and minimum temperature. Model parameters include the base temperature and the required cumulative GDD sum, estimated from phenological and meteorological observations in Latvia for the years 2010–2013 via iterative…

First record of conulariids from the Tērvete Formation, Upper Devonian of Latvia

2020

Phosphatized remains belonging to conulariids have been found in the Middle Famennian (Upper Devonian) deposits of the TÄrvete Formation of Latvia for the first time. The ornamentation pattern and characteristics of the exoskeleton indicate that the conulariids, represented by two incomplete and flattened specimens, belong to a single species within the genus Paraconularia. Paraconularia sp. from the TÄrvete Formation differs from Conularia latviensis Delle from the JoniÅ¡kis Formation in size and details of the morphology of the periderm; however, most probably, the species C. latviensis also belongs to the genus Paraconularia. Finding well-preserved almost complete conulariids agrees with…

Kjønn og religiøse grenser: Unge muslimer og kristnes forhandlinger av kjønn i migrantmenigheter

2019

Artikkelen belyser unge muslimer og kristnes forhandling av kjønn i migrantmenigheter: 1) Hvordan forhandler unge muslimer og kristne forventningene knyttet til kjønn, forbundet med religiøse klesdrakter og kjønnsdelte arbeidsoppgaver? Og 2), hva kan ungdommenes oppfatninger av religiøse koder og kjønnsdelte arbeidsoppgaver fortelle om symbolsk grensedragning mellom deres tilhørighet til en minoritetsgruppe og tilhørighet til majoritetssamfunnet? Data består av 23 kvalitative intervjuer med tenåringer og unge voksne i alderen 16–35 år. Ungdommene forhandlet stadig kleskoder og kjønnsdelte arbeidsoppgaver ut fra ulike religiøse, moralske og kulturelle forventninger. De skilte mellom religion…