Titre de série :	US geological Survey Water Supply Paper, 2297
Titre :	Estimation of recharge rates to the sand and gravel aquifer using environmental tritium, Nantucket Island, Massachusetts
Type de document :	texte imprimé
Auteurs :	Knott, F. F. ; Olimpio, J. C.
Mention d'édition :	U.S. Geological Survey, Federal Center
Editeur :	U.S. Geological Survey, Federal Center
Année de publication :	1986
ISBN/ISSN/EAN :	CI-05045
Note générale :	Estimation of the average annual rate of groundwater recharge to sand gravel aquifers using elevated tritium concentration in ground water is an alternative to traditional steady-state and water-balance recharge-rate methods. The concept of the tritium tracer method is that the average annual rate of ground-water recharge over a period of time can be calculated from the depth of the peak tritium concentration in the aquifer... Then the report shows that the accuracy of the tritium method is dependent on two key farctors : the accuracy of the affective-porosity data, and the sampling interval used at the site. For some site the need for recharge-rate data may require a determination as statistically accurate as that wich can be provided by the tritium methods.
Langues :	Anglais (eng)
Mots-clés :	Environnement  Hydrogéologie  Hydrologie  Eau souterraine  Sable  Bassin versant  Hydrochimie
Index. décimale :	333.7 Ressources naturelles et énergie : classer ici les ouvrages généraux sur l'environnement
Résumé :	Estimation of the average annual rate of groundwater recharge to sand gravel aquifers using elevated tritium concentration in ground water is an alternative to traditional steady-state and water-balance recharge-rate methods. The concept of the tritium tracer method is that the average annual rate of ground-water recharge over a period of time can be calculated from the depth of the peak tritium concentration in the aquifer... Then the report shows that the accuracy of the tritium method is dependent on two key farctors : the accuracy of the affective-porosity data, and the sampling interval used at the site. For some site the need for recharge-rate data may require a determination as statistically accurate as that wich can be provided by the tritium methods.
Note de contenu :	Estimation of the average annual rate of groundwater recharge to sand gravel aquifers using elevated tritium concentration in ground water is an alternative to traditional steady-state and water-balance recharge-rate methods. The concept of the tritium tracer method is that the average annual rate of ground-water recharge over a period of time can be calculated from the depth of the peak tritium concentration in the aquifer... Then the report shows that the accuracy of the tritium method is dependent on two key farctors : the accuracy of the affective-porosity data, and the sampling interval used at the site. For some site the need for recharge-rate data may require a determination as statistically accurate as that wich can be provided by the tritium methods.

US geological Survey Water Supply Paper, 2297. Estimation of recharge rates to the sand and gravel aquifer using environmental tritium, Nantucket Island, Massachusetts [texte imprimé] / Knott, F. F. ; Olimpio, J. C.  . -  U.S. Geological Survey, Federal Center . - U.S. Geological Survey, Federal Center, 1986.
ISSN : CI-05045
Estimation of the average annual rate of groundwater recharge to sand gravel aquifers using elevated tritium concentration in ground water is an alternative to traditional steady-state and water-balance recharge-rate methods. The concept of the tritium tracer method is that the average annual rate of ground-water recharge over a period of time can be calculated from the depth of the peak tritium concentration in the aquifer... Then the report shows that the accuracy of the tritium method is dependent on two key farctors : the accuracy of the affective-porosity data, and the sampling interval used at the site. For some site the need for recharge-rate data may require a determination as statistically accurate as that wich can be provided by the tritium methods.
Langues : Anglais (eng)

Mots-clés :	Environnement  Hydrogéologie  Hydrologie  Eau souterraine  Sable  Bassin versant  Hydrochimie
Index. décimale :	333.7 Ressources naturelles et énergie : classer ici les ouvrages généraux sur l'environnement
Résumé :	Estimation of the average annual rate of groundwater recharge to sand gravel aquifers using elevated tritium concentration in ground water is an alternative to traditional steady-state and water-balance recharge-rate methods. The concept of the tritium tracer method is that the average annual rate of ground-water recharge over a period of time can be calculated from the depth of the peak tritium concentration in the aquifer... Then the report shows that the accuracy of the tritium method is dependent on two key farctors : the accuracy of the affective-porosity data, and the sampling interval used at the site. For some site the need for recharge-rate data may require a determination as statistically accurate as that wich can be provided by the tritium methods.
Note de contenu :	Estimation of the average annual rate of groundwater recharge to sand gravel aquifers using elevated tritium concentration in ground water is an alternative to traditional steady-state and water-balance recharge-rate methods. The concept of the tritium tracer method is that the average annual rate of ground-water recharge over a period of time can be calculated from the depth of the peak tritium concentration in the aquifer... Then the report shows that the accuracy of the tritium method is dependent on two key farctors : the accuracy of the affective-porosity data, and the sampling interval used at the site. For some site the need for recharge-rate data may require a determination as statistically accurate as that wich can be provided by the tritium methods.