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Scientific Investigations Report 2012–5062


Groundwater Simulation and Management Models for the Upper Klamath Basin, Oregon and California


Table 4. Sensitivity of optimization model results to changes in groundwater discharge depletion constraint limit for drains (equation 32).


[All volumes are in acre-feet. Abbreviations: TID, Tulelake Irrigation District wells; KV, Klamath Valley wells; ULR, upper Lost River wells; NTL, Northern Tule Lake subbasin wells; STL, Southern Tule Lake subbasin wells; LKL, Lower Klamath Lake wells; Q3, third quarter; Q4, fourth quarter]

Well group
and water-year
quarter
Allowable reduction in groundwater discharge to drains, in percent
10 15 20 (base) 30 40
TID, Q3 0 542 705 1,916 1,916
TID, Q4 0 108 470 1,446 1,446
ULR, Q3 1,753 1,753 1,699 1,464 1,428
ULR, Q4 1,265 1,247 1,229 1,085 1,121
KV, Q3 11,911 15,834 17,352 17,985 17,424
KV, Q4 5,567 10,212 11,460 13,773 14,677
NTL, Q3 705 1,681 3,290 7,447 7,447
NTL, Q4 651 1,229 1,518 6,055 6,127
STL, Q3 5,766 6,688 11,731 16,322 15,273
STL, Q4 2,892 3,507 4,808 6,615 7,881
LKL, Q3 1,085 1,085 1,085 1,085 1,085
LKL, Q4 940 940 940 940 940
    Total 32,535 44,826 56,286 76,132 76,765

First posted May 5, 2012

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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