Abstract. Atmospheric water vapour has been acknowledged as an essential climate variable. Weather prediction and hazard assessment systems benefit from real-time observations, whereas long-term records contribute to studies. Nowadays, ground-based global navigation satellite system (GNSS) products have become widely employed, complementing observations over the oceans. Although past decade seen a significant development of GNSS infrastructure in Central South America, its potential for...

Il fulcro di questo intervento è il corpo abusato delle donne negli anni del primo conflitto mondiale, ma vuole approfondire anche la discussione, portata avanti da giornalisti, medici e diverse scrittrici, sulla possibilità scegliere, per alcuni, o necessità ricorrere obbligatoriamente, altri, all’aborto “terapeutico”. In particolare, ci concentreremo sull’ideologia Anna Franchi disputa avvenuta, tra quest’ultima giornalista Zandrino, sulle pagine quotidiano “Il popolo D’Italia”. La...

Our work is focused on the analysis of seasonal and semiannual ionospheric anomalies using vertical total electron content (VTEC) measurements obtained by International GNSS Service (IGS). For this study we use principal component (PCA) wavelet transform (WT) because both numerical tools allow us to isolate components VTEC variability as much spatially temporally. The IGS maps are reorganized, from each daily global data set, two were constructed: one at 12:00 LT other 22:00 LT. From these...

Abstract The Weddell Sea Anomaly (WSA) is defined when the nighttime plasma density greater than daytime in area near Sea, more specifically region limited by 50° S–70° S latitude and 225° E–315° E longitude. A similar ionospheric anomaly also observed Okhotsk northern hemisphere, such a feature was named as (OSA). objective of this work to infer possible physical causes WSA OSA phenomena. To that end, we applied principal component analysis (PCA) technique vertical total electron content...

Annual and seasonal diurnal precipitable water vapor (PWV) variations over Central South America are analyzed for the period 2007–2013. PWV values were obtained from Global Navigation Satellite Systems (GNSS) observations of sixty-nine GNSS tracking stations. Histograms by climate categories show that temperate, polar cold dry have a positive skewed distribution tropical climates (except monsoon subtype) negative distribution. The surface temperatures (T) anomaly datasets using principal...

The High Resolution Winds (NWC/GEO-HRW) software is developed by the EUMETSAT Satellite Application Facility on Support to Nowcasting and Very Short Range Forecasting (NWCSAF). It part of a stand-alone package for calculation meteorological products with geostationary satellite data (NWC/GEO). NWCSAF provides detailed Atmospheric Motion Vectors (AMVs) Trajectories, locally in near real time, using as input image data, NWP model OSTIA sea surface temperature data. whole NWC/GEO can be...

Results of a 100‐year run the Hadley Centre general circulation model are used to compute monthly values three components atmospheric torque on Earth and associated angular momentum series. All these results compared with equivalent ones from National Center for Environmental Prediction/National Atmospheric Research reanalyses overlap period since 1948. We find some important differences; consequently, our should be taken as an order magnitude effect. also effect atmosphere length day (LOD)...

This paper focuses on the contribution of inter-annual hydrological mass redistributions to excitation polar motion. Variations in angular momenta are computed from Land Dynamics Model (LaD) for period between 1986 January and 2004 May. For validation, numerical results excitations compared with respective time-series derived geodetic observations. In order provide a comparable reference, latter reduced by atmospheric oceanic effects which prominent contributors motion subdiurnal decadal...

Abstract. Commonly, numerical weather model (NWM) users can get the vertically integrated water vapor (IWV) value at a given location from values nearby grid points. In this study we used validated and freely available global navigation satellite system (GNSS) IWV data set to analyze very well-known effect of height differences. To end, studied behavior 67 GNSS stations in Central South America with prerequisite that they have minimum 5 years during period 2007 2013. The were compared...

The “NWCSAF High Resolution Winds (NWC/GEO-HRW)” software is developed by the EUMETSAT’s “Satellite Application Facility on support to Nowcasting and very short range forecasting (NWCSAF)”, inside its stand-alone package for calculation of meteorological products with geostationary satellite data (NWC/GEO). whole NWC/GEO can be obtained after registration at NWCSAF Helpdesk, www.nwcsaf.org. It easy get, install use. code read fully...

Abstract In coastal dunes, shrub encroachment disrupts natural disturbance, and reduces habitat heterogeneity species composition. this paper, we implemented a pilot scale trial aimed at restoring dunes affected by the Retama monosperma (hereinafter ) as well strengthening populations of Thymus carnosus (regionally cataloged ‘Critically Endangered’). A total 3 ha was clearcut in two sites with different cover (54 72%). The effect rabbits on vegetation recovery assessed placing exclosures...

Recent advances in image, video, text and audio generative techniques, their use by the general public, are leading to new forms of content generation. Usually, each modality was approached separately, which poses limitations. The automatic sound recording visual sequences is one greatest challenges for generation multimodal content. We present a processing flow that, starting from images extracted videos, able them. work with pre-trained models that employ complex encoders, contrastive...

The Study of Oil/Water Separation in Emulsion by Membrane Technology Laura G. Fernandez; Fernandez Universidad Nacional del Comahue-Argentina Search for other works this author on: This Site Google Scholar Carlos O. Soria; Soria Carolina A. Garcia Tourn; Tourn Maria Sanchez Izquierdo Paper presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, Buenos Aires, Argentina, March 2001. Number: SPE-69554-MS https://doi.org/10.2118/69554-MS Published: 25 2001 Cite View...

Abstract. We compared and analyzed data of vertically Integrated Water Vapor (IWV) from two different re-analysis models (ERA-Interim ECMWF MERRA-2 NASA's Global Modeling Assimilation Office) with respect to IWV values Navigation Satellite Systems (GNSS) at 53 stations Central South America during the 7-year period January 2007 till December 2013. The comparison was performed taking into account geopotential height differences between each GNSS station correspondent assigned by models. Thus,...

Abstract This study is devoted to the determination of admittance parameters describing Earth rotational response components zonal tide potential. First, in order better grasp physical content those coefficients, we revisit theoretical description length day (LOD) changes at sub‐decadal time scale, where forcing dominated by tides and hydro‐atmospheric mass transports. reminder specifies rheological coefficients permitting apply corrections isolate tidal part LOD. Then, admittances are...