Regional Ground-Water Flow in Upper and Middle Paleozoic Rocks in Southeastern Utah and Adjacent Parts of Arizona, Colorado, and New Mexico

摘要

The report describes the regional ground-water system, in the upper and middle Paleozoic rocks in southeastern Utah and adjacent parts of Arizona, Colorado, and New Mexico, and indicates the uncertainties in the understanding of the system. A flow model and a statistical model of the ground-water system are used to organize the data and describe the ground-water system. The assumptions and results of the models are used to characterize the system. The sensitivity of flow model simulations to changes are used to determine which uncertainties in the data affect simulations most and which affect simulations least. Future hydrologic-data collection can then be directed toward decreasing uncertainties in data that substantially affect simulations.