Return to the Table of Contents

 

Table 2. - Salton Sea, California, Area and Capacity Tables

Salton Sea tables were generated by the area-capacity program ACAP85, using the least squares method of curve fitting developed by the Bureau of Reclamation Technical Service Center. This program computes area at 1.0-, 0.1-, and 0.01-foot increments by linear interpolation between basic data contours. Respective capacities and capacity equations are then obtained by integration of area equations. The initial capacity equation is tested over successive intervals to check whether it fits within an allowable error term. At the next interval beyond, a new capacity equation (integrated from the basic area equation over that interval) begins testing the fit until it too exceeds the error term. The capacity curve thus becomes a series of curves, each fitting a certain region of data. Final area equations are obtained by differentiation of the capacity equations. Capacity equations are of the form y = a + a2x + a3x2, where y is capacity and x is the elevation above an elevation base. The capacity equation coefficients for the Salton Sea are shown below (epsilon = 0.000001). All elevations are below sea level.

SALTON SEA - CALIFORNIA

1995 AREA-CAPACITY TABLES

Equation Number

Elevation
Base

Capacity
Base

Coefficient
A1 (Intercept)

Coefficient
A2 (1st Term)

Coefficient
A3 (2nd Term)

1

-278.60

0

.0000

.0000

360.4167

2

-278.00

129

129.7500

432.5000

2605.5000

3

-277.00

3167

3167.7500

5643.5000

3714.6500

4

-276.00

12525

12525.9000

13072.8000

4630.0000

5

-275.00

30228

30228.7000

22332.8000

6031.3000

6

-274.00

58592

58592.8000

34395.4000

5612.2500

7

-273.00

98600

98600.4500

45619.9000

5729.3000

8

-272.00

149949

149949.6500

57078.5000

6016.4000

9

-271.00

213044

213044.5500

69111.3000

5764.8000

10

-270.00

287920

287920.6500

80640.9000

5284.2500

11

-269.00

373845

373845.8000

91209.4000

3562.4500

12

-268.00

468617

468617.6500

98334.3000

2994.7000

13

-267.00

569946

569946.6500

104323.7000

2628.7500

14

-266.00

676899

676899.1000

109581.2000

2467.4000

15

-265.00

788947

788947.700

114516.0000

2360.3000

16

-264.00

905823

905824.0000

119236.6000

2276.8500

17

-263.00

1027337

1027337.4500

123790.3000

2010.9500

18

-262.00

1153138

1153138.7000

127812.2000

1887.1000

19

-261.00

1282837

1282838.0000

131586.4000

1813.2000

20

-260.00

1416237

1416237.6000

135212.8000

1690.7000

21

-259.00

1553141

1553141.0725

138593.4064

1625.5516

22

-256.00

1983550

1983550.2000

148341.6000

1581.4000

23

-255.00

2133473

2133473.2000

151504.4000

1552.4000

24

-254.00

2286529

2286530.0000

154609.2000

1513.0000

25

-253.00

2442652

2442652.3089

157628.9161

1430.8750

26

-251.00

2763635

2763635.7500

163358.7000

1471.8500

27

-250.00

2928466

2928466.3000

166302.4000

1498.7000

28

-249.00

3096267

3096267.4000

169299.8000

1626.6000

29

-248.00

3267193

3267193.800

172553.0000

1778.4000

30

-247.00

3441525

3441525.2000

176109.8000

1855.4500

31

-246.00

3619490

3619490.4500

179820.7000

1892.4500

32

-245.00

3801203

3801206.5732

183588.7518

2061.1750

33

-243.00

4176631

4176631.7500

191850.3000

1837.0000

34

-242.00

4370319

4370319.0500

195524.3000

1717.3500

35

-241.00

4567560

4567560.7000

198959.0000

1674.4500

36

-240.00

4768194

4768194.1714

202307.7786

1529.1000

37

-238.00

5178926

5178926.1500

208424.3000

1637.1500

38

-237.00

5388987

5388987.6000

211698.6000

1421.8000

39

-236.00

5602107

5602112.0875

214519.0375

1292.7750

40

-234.00

6036325

6036325.3500

219713.3000

1562.2500

41

-233.00

6257600

6257604.5268

222817.2482

1715.7750

42

-231.00

6710105

6710105.7500

229700.9000

1788.2000

43

-230.00

6941594

6941594.8500

233277.3000

1461.9850

The Salton Sea survey in February 1995 used the contour method to obtain the basic data for these tables. Close interval profiles of the underwater portion of the Sea were collected by standard surveying techniques using a DGPS and echo sounder. The above water portion was determined from USGS topography dated 1956 and photorevised in the 1970s. Reduction of the field data was completed at the Technical Service Center in Denver, Colorado.

 

Return to the Table of Contents