Table 6.  Monthly water budget for the Nueces estuary, May–October 1998

[In acre-feet]

Component

May

June

July

Aug.

Sept.

Oct.

Total1

Inflows:

 

 

 

 

 

 

 

Rainfall (Nueces delta)

0

310

1,130

7,090

6,210

14,400

29,100

Rainfall (Nueces Bay)

0

101

1,870

5,070

3,920

13,900

24,900

Measured inflow

76

28

44

4,920

55,900

69,200

130,000

Unmeasured inflow

0

0

0

760

870

5,500

7,130

Saltwater return flow

29,500

39,300

35,900

37,300

37,900

29,500

209,000

Freshwater return flow

320

420

400

400

420

350

2,310

Total1

29,900

40,200

39,300

55,500

105,000

133,000

403,000

Outflows:

 

 

 

 

 

 

 

Evaporation (Nueces Bay)

8,840

11,200

12,900

9,450

6,520

5,700

54,600

Net tidal flow

25,800

28,200

31,100

29,700

85,900

106,000

307,000

Total1

34,600

39,400

44,000

39,100

92,400

112,000

362,000

Change in bay volume:

-4,700

500

-5,800

9,500

6,800

7,300

13,600

1 Total might not equal sum because of rounding.

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