Hydrology, definition

Daughney, C.J. Reeves, R.R. 2005. Definition of hydrochemical facies in the New Zealand National Groundwater Monitoring Programme. Journal of Hydrology NZ, 44, 105-130. 

The inventory of all brackish water resources is not completed as yet, but the definite advantage of brackish water desalting over seawater desalting, makes it essential to carry out a comprehensive hydrological survey of brackish water potential in the country. 

Fig. 13.4 Definition of temperatures relevant to hydrological studies Ti = average temperature in the rainy season at recharge area T2 = average annual temperature at recharge area T3 = temperature at the base of the aerated zone, above the water table (deduced from the Ar, Kr, and Xe concentrations) T4 = maximum temperature reached at the deepest point of the water path T5 = observed spring or well temperature at the time of sampling T6 = ambient air temperature at the time of sampling. (From Herzberg and Mazor, 1979.)...

Meinzer O. E. (1923) Outhne of ground-water hydrology, with definitions. US Geol. Surv., Water-Supply Pap. 494. 

Some of these definitions and concepts are shown schematically in Fig. 8.2, which describes a simple hydrologic cycle. The figure introduces the important concept of a perched water table, which may result from ponding of infiltration on a clay layer or impervious lens. Also shown is... 

From the definition of the turnover rate k in any hydrologic system, the turnover time x can be identified as... 

Wetlands are usually defined by hydric soils, the presence of vegetation adapted to wet conditions, and hydrology. There are several definitions of wetlands, each stressing different characteristics and wetland values. 

If this is the case, there exists the distinct possibility that all three general circulation models would have produced dryer soil conditions in the middle-latitude continental regions during the summer season provided enough moisture had been present in the soil to allow this to occur. A definitive conclusion on this issue must await future modeling studies that incorporate more realistic representations of surface hydrologic processes. 

Somerville, S. H. and M. A. Paul. 1983. Dictionary of Geotechnics. London Butterworths. Definitions in the areas of soil and rock mechanics, hydrology, ground stabilization, and excavation are included. This volume also provides a series of tables dealing with a variety of aspects of geotechnical engineering at the end of the book. 

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