Bayesian inference of earthquake rupture models using polynomial chaos expansion

. In this paper, we employed polynomial chaos (PC) expansions to understand earthquake rupture model responses to random fault plane properties. A sensitivity analysis based on our PC surrogate model suggests that the hypocenter location plays a dominant role in peak ground velocity (PGV) responses, while elliptical patch properties only show secondary impact. In addition, the PC surrogate model is utilized for Bayesian inference of the most likely underlying fault plane configuration in light of a set of PGV observations from a ground-motion prediction equation (GMPE). A restricted sampling approach is also developed to incorporate additional physical constraints on the fault plane configuration and to increase the sampling efficiency.

A regional coupled ocean–atmosphere modeling framework (MITgcm–WRF) using ESMF/NUOPC: description and preliminary results for the Red Sea

Bayesian inference of earthquake rupture models using polynomial chaos expansion

DETECTION OF THE NITRATE POLLUTION SOURCES IN SHALLOW AQUIFER, USING INTEGRATION OF RS&GIS WITH STABLE ISOTOPES TECHNOLOGIES

. Geographical information system (GIS) and remote sensing technique is a tool which is used for acquiring data from space, storing, analyzing and displaying spatial data, also can use for investigating source of environmental pollution which is affect health. Sudan landsat mosaic image which acquired in 2013 was used in this study to develop land use and land cover maps for tow selected study area, Khartoum urban area, and Bara locality in North kordofan state western Sudan. The main objective to assess the source of Nitrate pollution in shallow aquifer. ERDAS software was used to create land cover-land use maps for the study areas. For Khartoum town we used land sat mosaic image which acquire in 2013, and used supervised classification which more closely controlled than unsupervised. In this process, we select pixel that represent patterns you recognized or can identify with help from knowledge of the data, the classes desired, and the algorithm to be used is required. In this paper we integrated the (GIS&RS), and stable isotopes methods for fingerprinting Nitrate sources in shallow boreholes. The global positioning system (GPS), used in the field to identify the shallow boreholes location in a three dimensional coordinate (Latitude, longitude, and altitude), Water samples were collected from 19 shallow boreholes in the study areas according to the standard sampling method send to laboratory to measure stable nitrogen (δ15Nnitrate), and Nitrate-oxygen (δ18Onitrate) isotopes. Analysis were conducted by using isotope ratio mass spectrometry (IRMS). We can conclude that, special distribution and integration of GIs & RS help to identify the source of nitrate pollution.

Paleotsunami deposits along the coast of Egypt correlate with historical earthquake records of eastern Mediterranean

. We study the sedimentary recordof past tsunamis along the coastal area west of Alexandria (NW Egypt) takinginto account the occurrence of major historical earthquakes in the easternMediterranean. The two selected sites at Kefr Saber ( ∼32  km west ofMarsa-Matrouh city) and ∼ 10 km northwest of El Alamein village arecoastal lagoons protected by 2–20 m-high dunes parallel to the shoreline.Field data were collected by (1) coastal geomorphology along estuaries,wedge-protected and dune-protected lagoons; and (2) identification andspatial distribution of paleotsunamis deposits using five trenches(1.5 m-depth) at Kefr Saber and twelve cores (1 to 2.5 m-depth) at ElAlamein. Detailed logging of sedimentary sections was conducted using X-rays,grain size and sorting, total organic and inorganic matter, bulk mineralogy,magnetic susceptibility, and radiocarbon dating to identify past tsunamisrecords. Generally of low energy, the stratigraphic succession made ofcoastal lagoon and alluvial deposits includes intercalated high-energydeposits made of mixed fine and coarse sand with broken shells, interpretedas catastrophic layers correlated with tsunami deposits. Radiocarbon datingof 46 samples consist in mixed old ( >13 000  BP) and young(  BP), dated charcoal and shells in sedimentary unitscorrelate with the 24 June AD 1870 ( Mw  7.5), 8 August AD 1303 ( Mw ∼  8) and 21 July AD 365 ( Mw  8–8.5) large tsunamigenicearthquakes that caused inundation along the Alexandria and northern Egyptianshoreline. Our results point out the size and recurrence of past tsunamis andthe potential for future tsunami hazards on the Egyptian coastline and theeastern Mediterranean regions.

Paleotsunami deposits along the coast of Egypt correlate with historical earthquake records of eastern Mediterranean

Supplementary material to "Paleotsunami deposits along the coast of Egypt correlate with historical earthquake records of eastern Mediterranean"

Going Beyond Boundaries: There is a Way and the Use of English Medium in Hausa Film Industry

Since its inception in 1990, Kannywood, the Northern Nigerian film industry, produced films only in Hausa, the dominant language of the region. The film, There is a Way (2016, dir. Falalu A. Dorayi) has recently debuted a new “genre” in the English language in the industry. However, the place of English or any non-African language in African arts (film, inclusive) is a topic of scholarly debate, especially within the discourse of postcolonial studies. Many pan-African writers and critics query the justification of that as the language is, they argue, foreign to African audience and is used only by and for the elites. Kannywood filmmakers, nevertheless, claim that theirs is rather a response to the Southern Nigerian filmmakers whose industry, Nollywood is enormously successful and far ahead for, among other reasons, their use of English. This paper attempts an evaluation of the English language and the subtitle of the film in question, to access the success or otherwise of its narrative essence.

First report of Coniella granati causing dieback and fruit rot of pomegranate in Tunisia

Tunisia is one of the main regions for pomegranate (Punica granatum) cultivation and production. During the spring of 2016, twig necrosis (Fig. 1) and dieback associated with marginal leaf browning (Fig. 2) and dry fruit rots were observed…

A Statistical Analysis of Corrosion Rate and Mechanical Properties of metal inert gas welding