Morphometry and Morphostructural Studies of the Parts of Gola River and Kalsa River Basins,Chanphi-Okhalkanda Region,Kumaun Lesser Himalaya,India     

Lal. Kumar  Joshi  G.  Agarwal  K. K. 《Geotectonics》2020,54(3):410-427

Geotectonics - Study of morphometric parameters such as stream length (Lu) and stream length ratios (Rl), bifurcation ratio (Rb), drainage density (D), form factor (Rf), circularity ratio (Rc),...  相似文献   

Structure of Prominences with Normal and Inverse Polarities     

Korolkova  O. A.  Solov’ev  A. A. 《Geomagnetism and Aeronomy》2019,59(7):858-863

Geomagnetism and Aeronomy - Based on the measurements of their magnetic fields, solar prominences can be divided into two types: filaments with normal (N) or inverse (I) polarity. In an N-type...  相似文献   

Zooplankton Size Structure in the Kolsay Mountain Lakes (Kungei Alatau,Southeastern Kazakhstan) and Its Relationships with Environmental Factors     

Krupa  E. G.  Barinova  S. S.  Romanova  S. M. 《Water Resources》2019,46(3):403-414

Water Resources - The size structure of zooplankton in Kolsay Lakes was characterized with the use of the values of Clarke W-statistic, ?-Shannon–Weaver, and the average individual mass...  相似文献   

Hydrochemical Features of Lake Itcul Ecosystem and the State of Phytoplankton     

Likhachev  S. F.  Sibirkina  A. R.  Dvinin  D. Yu.  Voitovich  G. A. 《Water Resources》2019,46(3):415-421

Water Resources - The results of hydrochemical analysis of water in Lake Itkul, which is a natural monument of Chelyabinsk oblast and an important recreation and tourist object for the population...  相似文献   

Zoning of Groundwater Quality for Plain Garmsar in Iran     

Abouzar Nasiri  Shirocova  Vera A.  Zareie  Sajad 《Water Resources》2019,46(4):624-629

Water Resources - Groundwater performs an important role in the territory of the plains Garmsar. In this study, on the basis of water samples, which were obtained from the wells of the region,...  相似文献   

Modeling spatially non-stationary land use/cover change in the lower Connecticut River Basin by combining geographically weighted logistic regression and the CA-Markov model   总被引：2，自引：0，他引：2  

Hui Wang  Scott R. Stephenson  Shijin Qu 《International journal of geographical information science》2019,33(7):1313-1334

Simulating land use/cover change (LUCC) and determining its transition rules have been a focus of research for several decades. Previous studies used ordinary logistic regression (OLR) to determine transition rules in cellular automata (CA) modeling of LUCC, which often neglected the spatially non-stationary relationships between driving factors and land use/cover categories. We use an integrated geographically weighted logistic regression (GWLR) CA-Markov method to simulate LUCC from 2001–2011 over 29 towns in the Connecticut River Basin. Results are compared with those obtained from the OLR-CA-Markov method, and the sensitivity of LUCC simulated by the GWLR-CA-Markov method to the spatial non-stationarity-based suitability map is investigated. Analysis of residuals indicates better goodness of fit in model calibration for geographically weighted regression (GWR) than OLR. Coefficients of driving factors indicate that GWLR outperforms OLR in depicting the local suitability of land use/cover categories. Kappa statistics of the simulated maps indicate high agreement with observed land use/cover for both OLR-CA-Markov and GWLR-CA-Markov methods. Similarity in simulation accuracy between the methods suggests that the sensitivity of simulated LUCC to suitability inputs is low with respect to spatial non-stationarity. Therefore, this study provides critical insight on the role of spatial non-stationarity throughout the process of LUCC simulation.  相似文献   

Maximum Entropy and Random Forest Modeling of Mineral Potential: Analysis of Gold Prospectivity in the Hezuo–Meiwu District,West Qinling Orogen,China     

Zhang  Shuai  Xiao  Keyan  Carranza  Emmanuel John M.  Yang  Fan 《Natural Resources Research》2019,28(3):645-664

Natural Resources Research - This study tested and compared the mineral potential mapping capabilities of the random forest (RF) and maximum entropy (MaxEnt) algorithms using gold deposit...  相似文献   

Development of Principles and Legal Rules Regulating the Use of Transboundary Water Resources by States     

Nikanorova  A. D.  Egorov  S. A. 《Water Resources》2019,46(1):138-142

Water Resources - The study is focused on the step-by-step development of the modern system of legal rules and principles used at the international level to regulate the use of transboundary...  相似文献   

Energy and Power Spectra of the Potential Geomagnetic Field since 1840     

Starchenko  S. V.  Yakovleva  S. V. 《Geomagnetism and Aeronomy》2019,59(2):242-248

Geomagnetism and Aeronomy - It is possible that the radially independent, spatial-spectral components of the energy and power of the potential part of the main geomagnetic field were determined and...  相似文献   

Sulfide Sulfur in Water Objects with Different Mineralization     

Fedorov  Yu. A.  Mikhailenko  A. V.  Dotsenko  I. V. 《Water Resources》2019,46(2):S59-S64

Water Resources - Hydrogen sulfide, like other sulfides, is formed in aquatic environments due to sulphate reduction processes and putrefactive decomposition of organic matter of bottom sediments,...  相似文献