The logarithm-linear relationship of the occurrence frequency to the duration of sand–dust storms: Evidence from observational data in China

2007 ◽  
Vol 71 (2) ◽  
pp. 243-249 ◽  
Author(s):  
G. Liu ◽  
S.-U. Park
Keyword(s):  
Linear Relationship ◽  
Observational Data ◽  
Dust Storms ◽  
Occurrence Frequency ◽  
Relationship Of ◽  
Sand Dust

Integration of multi-source measurements to monitor sand-dust storms over North China: A case study

2013 ◽  
Vol 27 (4) ◽  
pp. 566-576 ◽  
Author(s):  
Jianping Guo ◽  
Tao Niu ◽  
Fu Wang ◽  
Minjun Deng ◽  
Yaqiang Wang
Keyword(s):  
North China ◽  
Dust Storms ◽  
Sand Dust

scholarly journals Non-linear relationship of cell hit and transformation probabilities in a low dose of inhaled radon progenies

2009 ◽  
Vol 29 (2) ◽  
pp. 147-162 ◽  
Author(s):  
Imre Balásházy ◽  
Árpád Farkas ◽  
Balázs Gergely Madas ◽  
Werner Hofmann
Keyword(s):  
Linear Relationship ◽  
Low Dose ◽  
Non Linear ◽  
Relationship Of

scholarly journals Analytic Representation of the Optimal Flow for Gravity Irrigation

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2710 ◽  
Author(s):  
Carlos Fuentes ◽  
Carlos Chávez
Keyword(s):  
Linear Relationship ◽  
Analytic Representation ◽  
Hydrodynamic Characteristics ◽  
One Dimensional ◽  
Coupled Equations ◽  
Irrigation Flow ◽  
Coefficient Of Uniformity ◽  
Relationship Of ◽  
Strip Length ◽  
Infiltration Parameters

The aim of this study is the deduction of an analytic representation of the optimal irrigation flow depending on the border length, hydrodynamic properties, and soil moisture constants, with high values of the coefficient of uniformity. In order not to be limited to the simplified models, the linear relationship of the numerical simulation with the hydrodynamic model, formed by the coupled equations of Barré de Saint-Venant and Richards, was established. Sample records for 10 soil types of contrasting texture were used and were applied to three water depths. On the other hand, the analytical representation of the linear relationship using the Parlange theory of infiltration proposed for integrating the differential equation of one-dimensional vertical infiltration was established. The obtained formula for calculating the optimal unitary discharge is a function of the border strip length, the net depth, the characteristic infiltration parameters (capillary forces, sorptivity, and gravitational forces), the saturated hydraulic conductivity, and a shape parameter of the hydrodynamic characteristics. The good accordance between the numerical and analytical results allows us to recommend the formula for the design of gravity irrigation.

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