Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Etats Unis → 1984 → Water budget computer model to investigate the effectiveness of evaporation control on Thompson Reservoir, Santa Catalina Island, California

University of Arizona (1984)

Water budget computer model to investigate the effectiveness of evaporation control on Thompson Reservoir, Santa Catalina Island, California

Lozier, William Blaine

Titre : Water budget computer model to investigate the effectiveness of evaporation control on Thompson Reservoir, Santa Catalina Island, California

Auteur : Lozier, William Blaine.

Université de soutenance : University of Arizona

Grade : Master of Science (MS) 1984

Résumé
Evaporation control is investigated as a partial solution to Santa Catalina Island’s historical problem of an inadequate freshwater supply. The objective is to determine what effect an evaporation cover would have on increasing the safe yield of the major water supply reservoir, Thompson Reservoir. A water budget computer model of the reservoir/aquifer system is developed. The model is capable of recreating the reservoir elevation history since November, 1966. Domestic use is increased to determine the safe yield of the system based on the period 1966-1983. The calculated safe yield of 406 acre-feet is not realistic considering that more extreme drought conditions have occurred prior to 1966. This indicates that the actual safe yield of the reservoir is somewhat lower. Evaporation control runs were made with cover areas of 5, 10, 15, 20 and 25 acres. It was found that these covers are effective in increasing the safe yield by as much as 70 acre-feet per year. It is concluded that evaporation control on Thompson Reservoir would be an effective means of increasing Catalina’s freshwater supply.

Mots Clés : Evaporation control — California — Santa Catalina Island — Data processing.

Présentation

Version intégrale (11,22 Mb)

Page publiée le 4 novembre 2012, mise à jour le 17 février 2018