Earth Sciences

Volume 4, Issue 5, October 2015

  • Validation of Satellite-Based PERSIANN Rainfall Estimates Using Surface-Based APHRODITE Data over Iran

    Javad Bodagh Jamli

    Issue: Volume 4, Issue 5, October 2015
    Pages: 150-160
    Received: May 06, 2015
    Accepted: May 18, 2015
    Published: Sep. 06, 2015
    Downloads:
    Views:
    Abstract: Surface-based precipitation measurements with high accuracy on different spatial-temporal scales have a crucial importance in different land-use planning sectors, especially in arid and semi-arid regions, such as Iran. Because the density of spatial distribution of rain-gauges is not uniform throughout the country, satellite sensor technology is co... Show More
  • Geophysical and Geochemical Signature of Rare Metal Granites, Central Eastern Desert, Egypt: Implications for Tectonic Environment

    Ibrahim M. Gaafar, Khaled G. Ali

    Issue: Volume 4, Issue 5, October 2015
    Pages: 161-179
    Received: Jun. 08, 2015
    Accepted: Jul. 04, 2015
    Published: Sep. 22, 2015
    Downloads:
    Views:
    Abstract: Magnetic survey is usually used to delineate magnetic-structural lineaments, analyze their relationships to the inherited ductile fabrics and estimate the depth of perturbing body sources, probably granitic intrusions. These were conducted on the total magnetic intensity reduced to the pole map as well as First vertical derivative and Euler deconvo... Show More
  • Associated Microorganisms in Marine Cnidarians, Their Ecological Function in Symbiotic Relationship

    Zhi-Gang Qiu, Yihua Lyu, Jin Zhou

    Issue: Volume 4, Issue 5, October 2015
    Pages: 180-187
    Received: Nov. 20, 2015
    Accepted:
    Published: Nov. 20, 2015
    Downloads:
    Views:
    Abstract: Cnidarians (e.g. coral reefs) are among some of the most diverse and highly productive coastal ecosystems in tropical and subtropical regions. Microbes play pivotal roles in maintaining this productivity and are directly responsible for the well-being of a coral-based ecosystem. Microbes have important ecological functions in this ecosystem. With t... Show More
  • Application of Chaotic Time-Series Optimization Algorithm in Solving the Parameters of Leakage Aquifer

    Zhang Xiao-zhou, Lu Yu-dong, Guo Jian-qing

    Issue: Volume 4, Issue 5, October 2015
    Pages: 188-192
    Received: Dec. 01, 2015
    Accepted:
    Published: Dec. 01, 2015
    Downloads:
    Views:
    Abstract: Applied the chaotic time-series optimization algorithm to solve hydrogeological parameters through analysis the pumping test data of the first type leakage aquifer, then explored the influence of the initial value of aquifer parameters and other factors on the convergence and results of the algorithm. The results shown that: ①chaotic time-series op... Show More
  • Analysis on the Precipitation in Multiple Scales in Xi’an of China

    Xu Panpan, Yang Mi, Qian Hui

    Issue: Volume 4, Issue 5, October 2015
    Pages: 193-200
    Received: Nov. 30, 2015
    Accepted:
    Published: Dec. 01, 2015
    Downloads:
    Views:
    Abstract: Based on the data of precipitation from 1951 to 2014 in Xi’an,Shanxi Province,China(hereinafter referred to as Xi’an),after analyzing the characteristics of changes in precipitation over the last 64 years,the multiple scale analysis of annual precipitation and flood season precipitation are analyzed by wavelet analysis in Xi'an.The conclusions are ... Show More
  • Using Monte Carlo Method for Predicting Rainfall -- Taking Xi'an Area, Shaanxi Province, China, as an Example

    Wang Haike, Xu Panpan, Qian Hui

    Issue: Volume 4, Issue 5, October 2015
    Pages: 201-204
    Received: Nov. 30, 2015
    Accepted:
    Published: Dec. 01, 2015
    Downloads:
    Views:
    Abstract: Rainfall forecasting plays a vital role in the national economy, social development and human life. Based on Monte Carlo method, this paper uses P- III distribution function to fitting precipitation data in the past 63 years so as to forecast precipitation. Using this model to forecast the rainfall for the past ten years (2003 ~~2013) in Xi'an city... Show More
  • The Application of SWMM Model in the Urban Planning Study on Sponge City

    Zhang Bin, Gu Jin, Shi Xiangrong, Weng Xiaohua, Zhong Hua

    Issue: Volume 4, Issue 5, October 2015
    Pages: 205-210
    Received: Nov. 30, 2015
    Accepted:
    Published: Dec. 01, 2015
    Downloads:
    Views:
    Abstract: With urbanization, the proportion of land surface hardening increases, urban stormwater issues have become increasingly prominent. Based on "sponge city" by China, Quzhou old town used infiltration trenchs, permeable pavements, and rain gardens taking the total amount of runoff and peak control as goal in this paper.The paper established city rainw... Show More
  • Based on DPSR Model of Urban Land Intensive Utilization and Regional Urbanization Coordinated Development Evaluation of Space and Time -- A Case Study of the Wuhan City Circle in China

    Tian Lixue

    Issue: Volume 4, Issue 5, October 2015
    Pages: 211-217
    Received: Dec. 01, 2015
    Accepted:
    Published: Dec. 01, 2015
    Downloads:
    Views:
    Abstract: Based on the interaction of urbanization in the urban land intensive utilization and coordination mechanism, this paper constructed the coordination degree between the two and the relative development degree model, quantitative evaluation of urban land intensive utilization and urbanization coordinated development status, and can be divided into lo... Show More
  • Research on the Law of the Irrigation Water Infiltration in YaoBa Oasis Based on Hydrus-1D Model

    Zheng Ce, Lu Yu-dong, Li Huan-huan

    Issue: Volume 4, Issue 5, October 2015
    Pages: 218-222
    Received: Dec. 03, 2015
    Accepted:
    Published: Dec. 03, 2015
    Downloads:
    Views:
    Abstract: To study the law of irrigation water infiltration in soil is the basis of putting forward reasonable irrigation system. This paper takes YaoBa Oasis in Alxa Zuoqi,Inner Mongolia, China as the research object, based on field investigations and data collection, and chooses three test sites at the field to obtain the parameters of the model. The chang... Show More