Proceedings of 1st International Electronic Conference on Geosciences最新文献

Faults mapping in Noctis Labyrinthus area 夜迷宫区域的断层映射

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-29 DOI: 10.3390/iecg_2018-05410

Mayssa El Yazidi, M. Massironi, R. Pozzobon, S. Debei

引用次数: 0

Martian Analogue of Pampas de La Joya: an update and future implications 火星模拟潘帕斯德拉霍亚:更新和未来的影响

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-19 DOI: 10.3390/IECG_2018-05371

J. Valdivia-Silva, H. Pérez-Montaño

引用次数: 1

Morphological and spectrophotometric investigation of the layering of comet 67P/Churyumov-Gerasimenko 67P/丘留莫夫-格拉西门科彗星层状的形态学和分光光度研究

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-15 DOI: 10.3390/iecg_2018-05361

G. Tognon, S. Ferrari, L. Penasa, F. L. Forgia, M. Massironi, G. Naletto, M. Lazzarin

引用次数: 0

Promoting Earth sciences teaching-learning in the Italian schools: a research of learning objects, effective educational approaches, to improve skills and competences 促进意大利学校的地球科学教学:研究学习对象，有效的教育方法，提高技能和能力

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-14 DOI: 10.3390/IECG_2018-05348

Susanna Occhipinti

引用次数: 0

Mapping of the space change of Oued Ali Mountains (Mascara, Algeria) by Landsat optical imagery 利用Landsat光学影像对阿尔及利亚阿斯卡拉Oued Ali Mountains的空间变化进行制图

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-14 DOI: 10.3390/iecg_2018-05346

Farida Bachir Belmehdi, K. Hasni, B. Gourine, Moussa Lesgaa

引用次数: 0

Deformation Analysis Of The Seismic And Post-Seismic Cheliff (Algeria) Geodetic Network Using 2d Elastic Finite Element Method (FEM) 基于二维弹性有限元法的切利夫(阿尔及利亚)大地测量网地震及震后变形分析

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-14 DOI: 10.3390/IECG_2018-05345

B. Gourine, Farida Bachir Belmehdi

{"title":"Deformation Analysis Of The Seismic And Post-Seismic Cheliff (Algeria) Geodetic Network Using 2d Elastic Finite Element Method (FEM)","authors":"B. Gourine, Farida Bachir Belmehdi","doi":"10.3390/IECG_2018-05345","DOIUrl":"https://doi.org/10.3390/IECG_2018-05345","url":null,"abstract":"The region of Cheliff, located at the North West of Algeria, is one of an exceptional interest for crustal motion study which is due to seismic activity. Usually, in the deformation analysis of geodetic networks, there are two conventional methods for estimating the movements of an area of study: displacement vectors and strain tensors. However, the evaluation and representation of the deformation depend on the priori reference system and on the configuration of chosen elements that constitute the entire network. These constraints make difficult the interpretation of the results. Through this present paper, a solution based on the finite element method (FEM) is proposed to refine the estimation and the representation of the deformation of geodetic networks. In this context, a study of the deformation is carried out to analyze the horizontal motion of the Cheliff geodetic network due to the famous earthquake of October 10, 1980 (Ms = 7.3), based on two-dimensional elastic finite element model. This network was observed by classical triangulation in 1976 (by INCT) and in 1981 (by CRAAG). The different results are illustrated in terms of displacement vectors, strain and stress tensors where the estimated deformation is interpreted according to previous geophysical studies. They revealed a compressive phenomenon of Cheliff area, in the NNW-SSE orientation, due to the convergence of the African and Eurasian tectonic plates, and to a block rotation phenomenon, at the SE and NW parts of the fault, in a retrograde direction. The study was extended to the post-seismic geodetic network observed between June1990 and April 1992 by CRAAG. The network was established by distance measurements, with 12 monitoring points distributed along the reverse fault. The results obtained show a post seismic meaningful deformation, in the fault central segment, characterized by global NW-SE direction of strain tensors in agreement with ground data.","PeriodicalId":252765,"journal":{"name":"Proceedings of 1st International Electronic Conference on Geosciences","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116699335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Glassy spherules from the Cretaceous-Paleogene boundary in Bąkowiec profile (Skole Nappe, Polish Outer Carpathians) 波兰外喀尔巴阡山脉Skole推覆体Bąkowiec剖面白垩纪-古近纪界线玻璃状球体

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-14 DOI: 10.3390/IECG_2018-05351

J. Dąbek, P. Wójcik-Tabol

引用次数: 0

Analysis of 04 years (2002-2005) of laser data on Starlette, Stella and LAGEOS-I/II satellites for stations coordinates and Earth Orientation Parameters (EOP) 2004年(2002-2005年)Starlette、Stella和LAGEOS-I/II卫星激光数据的台站坐标和地球方位参数分析

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-14 DOI: 10.3390/iecg_2018-05344

B. Gourine, K. Hasni, Farida Bachir Belmehdi

{"title":"Analysis of 04 years (2002-2005) of laser data on Starlette, Stella and LAGEOS-I/II satellites for stations coordinates and Earth Orientation Parameters (EOP)","authors":"B. Gourine, K. Hasni, Farida Bachir Belmehdi","doi":"10.3390/iecg_2018-05344","DOIUrl":"https://doi.org/10.3390/iecg_2018-05344","url":null,"abstract":"The present paper deals with the computation of Laser stations coordinates and Earth Orientation Parameters (EOP) based on measurements of low Earth orbit (LEO) satellites, namely Starlette (STA) and Stella (STL). The orbits of these satellites are less accurate than those of the LAGEOS satellites (usually used for an accurate calculation), because they are more affected by gravitational and non-gravitational forces. The objective is to achieve a good quality on the geodetic products by inter-satellite combination of Low and High satellites data. The orbit computation of the different satellites is performed by the GINS software (GRGS/France) and the laser data processing is carried out by the MATLO software (IGN, OCA/France), considering the use of gravity field model (Eigen_Grace-03s) of GRACE satellite, over a period of 04 years (between January 2002 and December 2005). The results in terms of time series are projected onto the reference frame ITRF2000 by the CATREF software (IGN/France), where the Helmert transformation parameters are obtained. Two solutions were compared: LA1 + LA2 (LL) and LA1 + LA2 + STL + STA (LLSS), in terms of quality time series of residual positions of stations, EOP and Geocentre variations. The results show that the data obtained from LEO satellites such as Starlette and Stella can be successfully used in the accurate determination of Laser geodetic products.","PeriodicalId":252765,"journal":{"name":"Proceedings of 1st International Electronic Conference on Geosciences","volume":"433 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132726524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RapidScat Sigma-0 Measurements Validation RapidScat Sigma-0测量验证

Proceedings of 1st International Electronic Conference on Geosciences Pub Date : 2018-06-14 DOI: 10.3390/IECG_2018-05350

Ruaa Alsabah, A. Al-Sabbagh, J. Zec

{"title":"RapidScat Sigma-0 Measurements Validation","authors":"Ruaa Alsabah, A. Al-Sabbagh, J. Zec","doi":"10.3390/IECG_2018-05350","DOIUrl":"https://doi.org/10.3390/IECG_2018-05350","url":null,"abstract":"NASA RapidScat is the first Ku-Band wind scatterometer that flown in non-Sun-synchronous orbit. RapidScat is capable of measuring ocean vector winds over the full diurnal cycle, instead of observing a given location at a fixed time of day. The RapidScat operated onboard the International Space Station between September 2014 and August 2016. This unique platform facilitated global contiguous geographical sampling between the ±56 latitude. Non-Sun-synchronous orbit also enables the overlap with other satellite instruments that have been flying in Sun-synchronous orbits. To serve as a cross-calibration reference with other instruments, RapidScat must be carefully calibrated. This paper presents the double-difference methodology to scatterometry. The methodology has been adopted for the cross-instrument calibration between RapidScat and QuikScat scatterometers simultaneously orbiting the Earth on- board two independent satellite platforms. The statistical analysis and measurements biases have been evaluated between the two scatterometers. Calculated biases may be used for measurement correction and reprocessing. This work summarizes the comparison measurements data in the period from January 2015 to August 2016. This research was performed under the grant from the NASA Headquarters and oth RapidScat and QuikScat datasets were provided by the NASA Physical Oceanography Distributed Active Archive Center (PODAAC) at the Jet Propulsion Laboratory.","PeriodicalId":252765,"journal":{"name":"Proceedings of 1st International Electronic Conference on Geosciences","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115802654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0