American Journal of Geographical Research and Reviews


A Preliminary Study on Constructing the Bed Sounding Data from DEM

Research Article of American Journal of Geographical Research and Reviews A Preliminary Study on Constructing the Bed Sounding Data from DEM Wang Yan College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China. Accurate riverbed information, including riverbed shape, sounding data and elevation data, is needed to simulate the process of flooding in flooded areas by using two-dimensional hydrodynamic model. DEM data is an important feature reflecting topographic changes and plays an important role in hydrological model analysis.However, in the plain area where DEM elevation changes are very small, the extraction and simulation of river network are of low accuracy in the process of hydrologic analysis, and there are great errors in watershed division. Taking the Mihe river basin, shouguang city, shandong province as the research object, based on WMS to abnormal proofreading is smoothing the center line of the river, get in line with the physical meaning of vector river network, the inversion to the original elevation data (DEM), and on this basis, with the river elevation information center line interpolation, construct a sounding data of river model, provide technical support for the two-dimensional hydrodynamic model. Keywords: River center line; DEM; Riverbed construction; WMS; Mihe river basin; Abnormal point correction ...

A Paradigm Synthesis Of The Relevance Of Fieldwork In Geographic Research

Review Article of American Journal of Geographical Research and Reviews A Paradigm Synthesis Of The Relevance Of Fieldwork In Geographic Research Innocent E. Bello 1*, Matthew E. Ufuah 2, Momoh L. Rilwani 2,  Adamu T. Ogah 1 1Nasarawa State University, Keffi, Nasarawa State, Nigeria 2 Ambrose Alli University, Ekpoma, Edo State, Nigeria This paper examined the concept of fieldwork and its relevance in geographic studies. In particular, the paper evaluates the pros and cons of fieldwork, and gave reasons why fieldwork is important in geographic research. It was further reiterated that like the laboratory of pure sciences, the field is the laboratory of the geographers as well as other related earth science disciplines because it affords the researcher the opportunity to collect first-hand data and relevant information that may eventually assist in carrying out a reliable research. The stages, benefits and the different approaches to fieldwork are examined. Constraints associated with fieldwork and solutions are provided. It was re-emphasized that although fieldwork is capital intensive and time consuming, early preparations together with a well-articulated aim and objectives, scope and methodology will eventually ensure a successful fieldwork. As a proof of concept, an evaluation of the empirical field studies of Charles Darwin that involved detailed fieldwork in its execution reaffirmed that the field remains a major source of data for any successful geographic research. Keywords: Deductive, Geography, Geographic Studies, Fieldwork, Inductive ...

SPATIAL TEMPORAL ANALYSIS OF RURAL CRIME HOT SPOT ZONE USING GIS: A PART OF COIMBATORE

Research Article of American Journal of Geographical Research and Reviews SPATIAL TEMPORAL ANALYSIS OF RURAL CRIME HOT SPOT ZONE USING GIS: A PART OF COIMBATORE Thangavelu A1*, Sapna K2, Sathyaraj SR1, Balsubramanian S1 1*DRDO-BU CLS, Bharathiar University, Coimbatore - 641016. 2Department of Environmental Science, PSG College of Arts and Science, Coimbatore - 641004. Spatio-temporal analysis is one of the suitable method in crime analysis. It is ability to visualize the spatial patterns and control emotionally over a time-ordered sequence of spatial variation. It has been involved the spatial modeling and models of location- allocation, spatial interaction, spatial choice with search, spatial optimization and space-time. Spatio-Temporal Analysis of Crime (STAC) is a powerful tool to identify the crime patterns and detect the crime hot clusters in identifying the hotspot areas. The aim of the objective study is to analyze the spatial effects based on space and time difference among the divisions (space and time) and rate of change. The different types of crime occurrence data were collected from fourteen rural police jurisdiction (2003-2006) in Coimbatore district, TamilNadu. For this analysis, crime occurrence data were used through ArcGIS 10.2 version. The study was analyzed the random walk incidences, and moving path of the peak incidences which are effective models used for entire surrounding area. The study was concluded that spatial-temporal dimension of crime in rural police jurisdictions and explaining how these outcomes used to assist the advance development of crime prevention strategies. Keywords: Crime, Coimbatore, GIS, Space, Time ...

Comparative test and study on different types of anchor cable support in high stress deep rock mass

Research Article of American Journal of Geographical Research and Reviews Comparative test and study on different types of anchor cable support in high stress deep rock mass Yu haikuo1, Zhang xiuyu1*, Li yuneng1, Chi en'an2,3, Pu hengqiang1, Ming yue1, Tang mingyuan1, Lu shuang1, Dai xianglong1 1Guizhou Guian Xinlian Blasting Engineering Group Co Ltd,Guiyang 550000,China. 2College of Ming,Guizhou University,Guiyang 550000,China. 3Poly Union Group Co Ltd,Guiyang 550000,China. To study the grouting anchor cable, high strength anchor cable, constant resistance, large deformation of anchor supporting of coal roadway surrounding rock different control effect, first using drilling into instrument detecting roof inner fracture of surrounding rock and loose circle development situation, again USES the anchor dynamometer, the roof abscission layer meter, convergence rule of surrounding rock of roadway convergence deformation and stress monitoring and supporting artifacts related to data processing and analysis between the drivage and stoping different anchor rope supporting of roadway surrounding rock under the condition of deformation and stress change rule anchor rope.Through the above steps, the grouting anchor cable is found to be the best supporting method. Keywords: Comparative test and study, different types, anchor cable support, high stress deep rock mass ...

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American Journal of Geographical Research and Reviews

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