GeographyRN: Other Physical Geography (Topic)最新文献

{"title":"High-Dimensional Multivariate Time Series Data Visualization Using an Open Source Framework","authors":"Meenakshi S. Krishnamoorthy, S. U.","doi":"10.2139/ssrn.3431675","DOIUrl":"https://doi.org/10.2139/ssrn.3431675","url":null,"abstract":"Multivariate Time Series plays a major part in statistics, signal processing, pattern recognition, econometrics, weather forecasting and earthquake prediction etc. It is very tedious task to select the appropriate technique to visualize the high-dimensional data in order to get insight or meaningful information. In this paper, we used an Open Source package named as Visbrain to visualize high-dimensional multivariate healthcare data in optimized way. It involves two dimensions of reflection: <br><br>(1) questions that speak to exceedingly configurable visual natives (availability of EEG and ECG sources, and so forth.) and <br><br>(2) graphical UIs for more elevated amount connections. <br><br>The article level offers adaptable and measured devices for delivering and computerizing the generation of numbers with a comparative way to deal with that of Matplotlib with subplots. The second dimension outwardly associates these articles by controlling properties and communications by means of graphical interfaces. The present form of Visbrain (rendition 0.4.4) contains 14 distinct items and three custom graphical interfaces, worked with PyQt: Signal, for the control of fleeting and ghostly properties. Every module has been created in close cooperation with end clients, mostly neuroscientists and area specialists, who utilize their experience to make Visbrain as straightforward as feasible for the chronicle modalities (eg intracranial EEG, ECG, scalp EEG, MEG, anatomical and useful MRI). The paper disscuses the features and various modules for current understanding research trends in the field of Visual Analytics.","PeriodicalId":314590,"journal":{"name":"GeographyRN: Other Physical Geography (Topic)","volume":"56 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121002159","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}

{"title":"Comparison of the Positions Computed from DGPS/GNSS Observations Using the New/Unified and Various Old Transformation Parameters in Nigeria","authors":"Eteje S. O., O. Oduyebo, S. A. Olulade","doi":"10.29322/IJSRP.8.10.2018.P8277","DOIUrl":"https://doi.org/10.29322/IJSRP.8.10.2018.P8277","url":null,"abstract":"The accurate computation of positions of points from DGPS/GNSS observations acquired on the WGS84 ellipsoid in each country requires the application of transformation parameters. This is because, positions are determined with respect to the local datum/ellipsoid adopted for geodetic computation in each country. Prior to the derivation of the new/unified transformation parameters which were recently published by the Office of the Surveyor-General of the Federation, OSGOF, various sets of transformation parameters were determined by different multinational oil companies for use in Nigeria. Since the positions of reasonable number of points had been computed using these old sets of transformation parameters before the new/unified ones were derived and promulgated, there is need to verify which of the positions computed with the old sets of transformation parameters agree with the positions computed with the new/unified ones. Consequently, this paper compares the positions computed from DGPS/GNSS observations using the various, old sets and the unified transformation parameters. GNSS observations of four different points were processed with Compass post processing software using the various, old sets and the unified transformation parameters to obtain the positions of the points. The coordinates of each point obtained from the processing of the observations using the old sets of transformation parameters were compared with those obtained using the unified ones. The comparison results show that the positions computed using three different (SPDC, AGIP and DMA) sets of transformation parameters agree with those computed using the unified ones.","PeriodicalId":314590,"journal":{"name":"GeographyRN: Other Physical Geography (Topic)","volume":"14 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127050284","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}

{"title":"Shedding Light on the Spatial Diffusion of Disasters","authors":"Gabriel Felbermayr, J. Gröschl, M. Sanders, Vincent G. Schippers, Thomas Steinwachs","doi":"10.2139/ssrn.3237340","DOIUrl":"https://doi.org/10.2139/ssrn.3237340","url":null,"abstract":"Climate research suggests that global warming will lead to more frequent and more extreme natural disasters. Most disasters are local events with effects on local economic growth. Hence, assessing their economic impacts with the help of econometric country-level analysis may lead to biased results. Moreover, correct identification is further complicated by the possibility that local shocks shift production and consumption to neighboring locations. In this paper, annual night-time light emission data covering about 24,000 grid cells for the years 1992-2013 are matched to geocoded information on meteorological and geological events. Spatial econometric panel methods are applied to account for interdependencies between locations. Interpreting variation in light emissions as reflecting changes in economic activity, findings convey evidence for pronounced local average treatment effects and strong spatial spillovers, particularly for weather shocks. In particular, results suggest that spatial shifts of economic activity after a natural disaster are a rather local phenomenon, stressing the importance of local adaptation policies. Moreover, substantial heterogeneity across income groups and regions is identified.","PeriodicalId":314590,"journal":{"name":"GeographyRN: Other Physical Geography (Topic)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126666430","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}

{"title":"Çaltı Çayı Yukarı Havzası’nın (Kangal Doğusu) Jeomorfolojisi (Geomorphology of the Upper Basin of Çaltı Stream, East of Kangal)","authors":"Murat Sunkar, Saadettin Tonbul, M. Özdemir","doi":"10.2139/ssrn.3394982","DOIUrl":"https://doi.org/10.2139/ssrn.3394982","url":null,"abstract":"Turkish Abstract: Inceleme alani, Turkiye’nin onemli Neojen havzalarindan birini olusturan Uzunyayla Platosu’nun dogusunda, Firat’in onemli kollarindan Calti Cayi’nin Yukari Havzasi’ni kapsamaktadir. Jeolojik bir havza olan Uzunyayla Paltosu, morfolojik olarak iki farkli havzaya ayrilmaktadir. Bu platonun bati bolumu Uzunyayla Havzasi’ni, dogusu ise Kangal Havzasi’ni olusturmaktadir. Kangal Havzasi’nin dogusunda yer alan inceleme alani, kuzey ve guneyden ters faylarla sinirlandirilmis oldugundan bir dag arasi havzasidir. K-G dogrultulu sikisma rejimi etkisinde kalan inceleme alani surekli yukselmistir. Yukselmeye neden olan bindirmeler Alt Pliyosen’e kadar etkili oldugu icin genc tektonigin Pliyosen’de basladigi bir alandir. Ust Miyosen-Pliyosen boyunca surekli sedimantasyon alani ozelligini koruyan havzada, kalinligi yer yer 200 m’yi bulan yatay yapili golsel ve akarsu olusuklari birikmistir. Kuzey ve guneyde daglik alanlar uzerinde havzanin farkli donemlerdeki taban seviyesine gore belli yukseltilerde asinim yuzeyleri gelismistir. Neotektonik donemde daglik alanlar KDGB dogrultusunda sol yanal atimli faylarla dilimlenmistir. Bu faylar da KB-GD dogrultusunda sag yanal atimli ikincil faylarla kesilmistir. Calti Cayi Yukari Havzasi, yatay yapili dolgularin yarilmasiyla olusan ortalama 1650 m yukseltilerinde yapisal bir platodur. Bu havzada, kivrimli, kirikli, yatay ve monoklinal yapida gelisen yer sekillerini de gormek mumkundur. Havza dolgularinin yarilmasiyla tipik yapi platosu, kornis ve mesalar olusmustur. Fay hatlari boyunca; otelenmis sirt ve vadiler, fay diklikleri, fay facetalari, fay golleri (Sag-pont), sicak su kaynaklari ve kutle hareketleri gelismistir. \u0000 \u0000English Turkish: Research area include the Upper Basin of Calti Stream which is the one of the important branches of Firat in the east of Uzunyayla Plateau which constitutes one of the important Neogen basins in Turkey. Uzunyayla Plateau which is a geological basin, has been divided in two parts as a morphological unit. The west part of this Plateau constitutes Uzunyayla Basin and the east part constitutes Kangal Basin. The limitation of reverse fault from North and South caused the construction of intra mountaine basin. This basin is the research area which locates in the east of Kangal Basin. The research area which is affected by the pressure regime in strike of N-S has rised, continuously. Rising depends on thrusts. This condition had been effective until early Pliocene. For this reason, neo-tectonic started in Pliocene. The basin had indicated the characteristics of sedimentation area during Upper Miocene-Pliocene. There are lacustrine and river formation in Basin. The thicknesses of these formations are approximately 200 m. Erosional surfaces developed at specific heights in highland at the North and the South, according to base-level of the Basin in different periods. Highlands were sliced by left lateral faults in the strike of NE-SW. These faults were cut by the secondary ri","PeriodicalId":314590,"journal":{"name":"GeographyRN: Other Physical Geography (Topic)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129849797","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}

{"title":"Is Wildfire Policy in the United States Sustainable?","authors":"T. Steelman, Caitlin A. Burke","doi":"10.2139/ssrn.1931057","DOIUrl":"https://doi.org/10.2139/ssrn.1931057","url":null,"abstract":"Beginning in 2000, wildfire policy in the United States shifted from focusing almost exclusively on suppression to embracing multiple goals, including hazardous fuels reduction, ecosystem restoration and community assistance. Mutually reinforcing, these policy goals have the potential to result in an ecologically, socially and economically sustainable wildfire policy that can mitigate the long-term risk of wildfire for human and ecological communities alike. Six years into this new policy, we evaluate the evidence to determine how well the multiple goals are being served. We conclude that suppression and hazardous fuels reduction receive greater attention and resources relative to ecosystem restoration and community assistance. This provides an incomplete solution to mitigating the long-term risk of wildfire, thereby running the risk of perpetuating it.","PeriodicalId":314590,"journal":{"name":"GeographyRN: Other Physical Geography (Topic)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123856937","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}