SP-399 SKYLAB EREP Investigations Summary

 

TABLE 5-III.- Component Variance Analysis for the-Three Highest Nadir Angles [From ref. 549]. -Concluded.

(b) Skylab 4 data.

Windspeed range, knots

Type (a)

Variance, (knots) 2

Unexplained variance, (knots)2 (c)

Unexplained standard deviation, knots (d)

No. of cells scanned

Total

Meteorological

Radar

VV b

HH b

HV/VH b

VV

HH

HV/VH

VV

HH

HV/VH

VV

HH

HV/VH

VV

HH

HV/VH

.

e 11 to 20

A

32.4

0.1

23.2

12.5

6.1

10.5

1.2

13.8

229

9.5

3.7

4.8

3.1

3

1

2

e 21 to 30

A

14.4

16.6

21.8

19.1

6.1

10.5

1.2

1as

13.0

1.5

3.3

3.6

1.2

5

7

6

e o to 10

B

2.31

6.2

-

12.9

6.1

10.5

1.2

16.7

17.2

-

4.1

4.1

-

1

1

-

11 to 20

B

21.7

23.4

25.5

25.8

6.1

10.5

1.2

10.2

12.9

1.5

3.2

3.6

1.2

36

29

28

21 to 30

B

37.6

50.7

67.9

39.5

6.1

10.5

1.2

8.0

.7

27.2

2.8

.8

5.2

29

45

29

>30

B

65.0

81.0

69.4

71.5

6.1

10.5

1.2

126

1.0

3.3

3.5

1.0

1.8

4

1

3

11 to 20

C

18.9

10.9

21.2

25.8

6.1

10.5

1.2

13.0

2S.4

5.8

3.6

5.0

2.4

12

10

13

21 to 30

C

20.1

76.4

34.6

39.5

6.1

10.5

1.2

25.5

26.4

6.1

S.0

5.1

2.5

11

22

11

>30

C

88.7

67.9

94.3

71.5

6.1

10.5

1.2

11.1

14.1

21.6

3.3

3.8

4.6

5

5

5

O to 10

D

3

109.4

-

12.9

6.1

10.5

1.2

16.0

86.0

-

4.0

9.3

-

1

1

-

11 to 20

D

27.6

37.3

40.2

25.8

6.1

10.5

1.2

4.3

1.0

13.2

2.1

1.0

3.6

50

48

59

21 to 30

D

52.4

109.4

84.8

39.5

6.1

10.5

1.2

6.8

59.4

44.1

2.6

7.7

6.6

49

71

43

>30

D

64.3

41.7

68.0

?1.5

6.1

10.5

1.2

13.3

40.3

4.7

3.6

6.3

2.2

37

15

35

O to 10

BCD

2.65

57.8

-

12.9

6.1

10.5

1.2

16.4

34.4

-

4.0

5.9

-

2

2

-

11 to 20

BCD

24.4

29.7

32.9

25.8

6.1

10.5

1.2

7S

6.6

5.9

2.7

2.6

2.4

98

87

110

21 to 30

BCD

43.6

87.6

72.2

39.5

6.1

10.5

1.2

2.0

37.6

31.5

1.4

6.1

5.6

89

138

83

>30

BCD

67

49.8

71.1

71.5

6.1

10.5

1.2

10.6

32.2

1.6

3.3

S.7

1.3

46

21

43

O to 10

SYN

43.2

48.7

6.2

27.9

6.1

10.5

1.2

9.2

10.3

229

3.0

3.2

4.8

3

9

4

11 to 20

SYN

32.1

28.5

33.8

35.1

6.1

10.5

1.2

9.1

17.1

2.S

3.0

4.1

1.6

135

118

133

21 to 30

SYN

64.6

80.1

71.4

55.8

6.1

10.5

1.2

2.7

13.8

14.4

1.6

3.7

3.8

79

97

80

>30

SYN

116.6

113.4

82.2

101

6.1

10.5

1.2

9.5

1.9

20

3.1

1.4

4.S

19

14

19

.

Totals f

479

494

470

a A-type data are for weather ships and aircraft underflights. The B-, C-, and D-type data are for ship reports of decreasing quality; SYN represents those cells for which the windspeed had t be determined from the isobaric pattern and the boundary-layer theory. The meteorological variance is lowest for type A; the same for B, C, and D; and highest for SYN.

b VV, vertical transmit, vertical receive; HH, horizontal transmit, horizontal receive; HV, horizontal transmit, vertical receive; VH, vertical transmit, horizontal receive.

c italicized numbers represent the amounts by which the sum of the meteorological-error variance and the radar-error variance exceeds the total variance.

d italicized numbers are the square roots of the corresponding values in the three corresponding preceding columns.

e 0 to 10 knots=0 to 5.1 m/sec; 11 to 20 knots = 5.6 to 10.3 m/sec; 21 to 30 knots = 10.8 to 15.4 m/sec.

f excluding type BCD.


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