A survey of damage observed in Izmir due to 2020 Samos-Izmir earthquake     

Demirci  Hasan Emre  Karaman  Mustafa  Bhattacharya  Subhamoy 《Natural Hazards》2022,111(1):1047-1064

Natural Hazards - An earthquake of magnitude 6.9 hit the city of Izmir (Turkey) on 30 October 2020, resulting in 117 deaths (in Turkey) and considerable economic losses. The earthquake also...  相似文献   

CSAMT investigations of the Caferbeyli (Manisa/Turkey) geothermal area     

Aykaç  Sinem  Timur  Emre  Sari  Coşkun  Çaylak  Çagri 《Journal of Earth System Science》2015,124(1):149-159

Journal of Earth System Science - Western Turkey is one of the most remarkable regions of very active continental extension in the world. The most significant structures of this region are...  相似文献   

MINERALOGY AND GEOCHEMISTRY OF ULTRAMAFIC ROCKS FROM THE INDUS SUTURE OPHIOLITE IN SWAT, NW PAKISTAN     

Mohammad Arif  Charlie J. Moon 《地学前缘》2000,(Z1)

MINERALOGY AND GEOCHEMISTRY OF ULTRAMAFIC ROCKS FROM THE INDUS SUTURE OPHIOLITE IN SWAT, NW PAKISTAN1　BeccaluvaL ,MacciottaG ,PiccardoGB ,etal.PetrologyoflherzoliticrocksfromthenorthernApennineophiolites[J] .Lithos,1984 ,17:2 99～ 316 . 2　HartmannG ,WedepohlKH .ThecompositionofperidotitetectonitesfromtheIvreacomplex ,northernItaly:residuesfrommeltextraction[J] .GeochimCosmochActa ,1993,57:176 1～ 1782 . 3　JaquesAL ,ChappellBW .Petrologya…  相似文献   

Nonlinear meta-models for conceptual seakeeping design of fishing vessels     

Ayla Sayli  Ahmet Dursun Alkan  Onur Ganiler 《Ocean Engineering》2010,37(8-9):730-741

The scope of this paper is to develop the nonlinear meta-models for seakeeping behaviour, considering the fishing vessels. These models are intended to be inserted either in a multiattribute design selection process or in a comprehensive multiobjective optimization procedure. For this purpose, seakeeping data of fishing vessels in regular head waves are used to develop meta-models of transfer functions of heave, pitch and vertical acceleration by nonlinear analysis. A home-made software considers two databases; the first is composed by the ship dimensions and coefficients of fishing vessels, and the second is their ship motion data obtained by employing a strip-theory calculation. The meta-models are proposed to predict the vertical motion characteristics for given ranges of speed and wave length during the concept design stage. The independent variables are hull size (Δ), main dimensions (L, B, T), and some hydrostatic parameters (C_WP, C_VP, LCB, LCF, etc.). The results estimated by the software show good correspondences with the ones achieved by direct computations. The study provides additional insight on the influence of hull form parameters on seakeeping performance of small vessels having form properties and parametric range corresponding to the investigated vessels.  相似文献   

A technique for improving MODIS standard snow products for snow cover monitoring over Eastern Turkey     

Yaşar Tekeli  Ahmet Emre Tekeli 《Arabian Journal of Geosciences》2012,5(2):353-363

Daily snow cover maps at 500 m resolution are available from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors on NASA's Terra and Aqua satellites. However, information of the ground can only be obtained during clear sky conditions. In addition, the spectral similarity between clouds and snow in the visible part of the spectrum causes some ambiguities in separation of them. The dynamic behavior of clouds with their tendency to move faster often enables discrimination between cloud and snow, since snow remains relatively stationary. In this study, a daily merging methodology to combine Terra and Aqua based snow maps are proposed, and the benefits of this combination are evaluated. The methodology was tested for Eastern Turkey covering the period from December 2002 to March 2003. Merged maps derived from the standard daily snow maps from Terra (MOD10A1) and Aqua (MYD10A1) reduce the cloud cover present in any one image alone, provide better representation of the surface snow cover, and indicate better agreement with ground snow measurements than when either one is used alone. For “on the ground data date” analyses yielded 31% match ratios for MOD10A1 and MYD10A1, whereas combined images enabled 38%. One- to 2-day temporal window shifting enabled further 7% and 5% improvements in match ratios, respectively. The maximum improvement of 25% was achieved in January of 2003. The proposed methodology provides an easy and effective way to improve snow cover maps with little effort and provides fewer cloud-contaminated images for snow monitoring, for hydrology, and water resource management.  相似文献   

Effects of mining subsidence on masonry buildings in Zonguldak hard coal region in Turkey   总被引：5，自引：4，他引：1  

Eray Can  Şenol Kuşcu  Murat Emre Kartal 《Environmental Earth Sciences》2012,66(8):2503-2518

Gallerias are the underground constructed results of mining. As these space in underground layers collapse, horizontal and vertical ground movements occur and movement which may reach the earth’s surface are known as mining subsidence. The result of underground displacement may cause surface ground movement which can be detrimental to masonry buildings especially in hard coal regions. Thorough familiarity with general and regional characteristics of an affected area can assist reduction of the effects. Zonguldak and the nearby settlement area, with a population of 300,000, constitute the centre of a hard coal basin where extensive mining has a history extending through 160 years. Mining constitutes the main economic activity in this region, and consequently influences every aspect of life. This study’s intent is to identify the effects of mining subsidence on masonry buildings in the mining area of Kozlu, Zonguldak, Turkey and illustrate them with selected images of damaged masonry buildings. Also included are satellite and mining galleria images.  相似文献   

The rodent fauna from the Adapazarı pull-apart basin (NW Anatolia): its bearings on the age of the North Anatolian fault     

Engin Ünay  Ömer Emre  Mustafa Keçer 《Geodinamica Acta》2013,26(1-3):169-175

Abstract

To the east of the Sea of Marmara, the North Anatolian fault (NAF) branches into two strands, namely the northern and the southern strands. The Adapazan pull-apart basin is located in the overlapping zone of the Dokurcun and the ?zmit-Adapazan segments of the northern strand. The combined temporal ranges of the arvicolids from the Karapürçek formation (the first unit of the basin fill), deposited in the primary morphology of the Adapazan pull-apart basin, cover the latest Villanyian (latest Pliocene) and the Biharian (Early Pleistocene) time interval. The De?irmendere fauna collected from the lowermost sediments of this formation suggests that the Adapazan pull-apart basin started to form in the latest Pliocene. This, in turn, suggests that the dextral movement along the northern strand of the NAF commenced during the latest Pliocene. A new species, Tibericola sakaryaensis is also described. © 2001 Éditions scientifiques et médicales Elsevier SAS  相似文献   

The evolution of substructure in galaxy, group and cluster haloes – III. Comparison with simulations     

James E. Taylor †  Arif Babul 《Monthly notices of the Royal Astronomical Society》2005,364(2):535-551

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Modelling the formation of individual galaxies: A morphology problem for CDM?     

James E. Taylor  Arif Babul 《Astrophysics and Space Science》2003,284(2):405-409

We use a semi-analytic model of halo formation to study the dynamical history of giant field galaxies like the Milky Way. We find that in a concordance LCDM cosmology, most isolated disk galaxies have remained undisturbed for 8–10 Gyr, such that the age of the Milky Way's thin disk is unremarkable. Many systems also have older disk components which have been thickened by minor mergers, consistent with recent observations of nearby field galaxies. We do have a considerable problem, however, reproducing the morphological mix of nearby galaxies. In our fiducial model, most systems have disk-to-bulge mass ratios of order 1, and look like S0s rather than spirals. This result depends mainly on merger statistics, and is unchanged for most reasonable choices of our model parameters. We discuss two possible solutions to this morphology problem in LCDM. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   

A stabilized finite element formulation for finite deformation elastoplasticity in geomechanics     

Kaiming Xia  Arif Masud 《Computers and Geotechnics》2009

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