CATEGORY 0

In Section 4, Octet 10 = 0

Red text depicts changes made since 10/30/2023

Number (In Section 4, octet 11) |
Parameter | Units |
Abbrev |
---|---|---|---|

0 |
Wave Spectra (1) |
- |
WVSP1 |

1 |
Wave Spectra (2) | - | WVSP2 |

2 |
Wave Spectra (3) | - | WVSP3 |

3 |
Significant Height of Combined Wind Waves and Swell |
m |
HTSGW |

4 |
Direction of Wind Waves |
degree true |
WVDIR |

5 |
Significant Height of Wind Waves | m |
WVHGT |

6 |
Mean Period of Wind Waves | s |
WVPER |

7 |
Direction of Swell Waves | degree true | SWDIR |

8 |
Significant Height of Swell Waves | m |
SWELL |

9 |
Mean Period of Swell Waves | s |
SWPER |

10 |
Primary Wave Direction |
degree true | DIRPW |

11 |
Primary Wave Mean Period |
s |
PERPW |

12 | Secondary Wave Direction | degree true | DIRSW |

13 |
Secondary Wave Mean Period | s |
PERSW |

14 |
Direction of Combined Wind Waves and Swell | degree true | WWSDIR |

15 |
Mean Period of Combined Wind Waves and Swell | s |
MWSPER |

16 | Coefficient of Drag With Waves | - | CDWW |

17 | Friction Velocity | m s^{-1} |
FRICVW |

18 | Wave Stress | N m^{-2} |
WSTR |

19 | Normalised Waves Stress | - | NWSTR |

20 | Mean Square Slope of Waves | - | MSSW |

21 | U-component Surface Stokes Drift | m s^{-1} |
USSD |

22 | V-component Surface Stokes Drift | m s^{-1} |
VSSD |

23 | Period of Maximum Individual Wave Height | s | PMAXWH |

24 | Maximum Individual Wave Height | m | MAXWH |

25 | Inverse Mean Wave Frequency | s | IMWF |

26 | Inverse Mean Frequency of The Wind Waves | s | IMFWW |

27 | Inverse Mean Frequency of The Total Swell | s | IMFTSW |

28 | Mean Zero-Crossing Wave Period | s | MZWPER |

29 | Mean Zero-Crossing Period of The Wind Waves | s | MZPWW |

30 | Mean Zero-Crossing Period of The Total Swell | s | MZPTSW |

31 | Wave Directional Width | - | WDIRW |

32 | Directional Width of The Wind Waves | - | DIRWWW |

33 | Directional Width of The Total Swell | - | DIRWTS |

34 | Peak Wave Period | s | PWPER |

35 | Peak Period of The Wind Waves | s | PPERWW |

36 | Peak Period of The Total Swell | s | PPERTS |

37 | Altimeter Wave Height | m | ALTWH |

38 | Altimeter Corrected Wave Height | m | ALCWH |

39 | Altimeter Range Relative Correction | - | ALRRC |

40 | 10 Metre Neutral Wind Speed Over Waves | m s^{-1} |
MNWSOW |

41 | 10 Metre Wind Direction Over Waves | degree true | MWDIRW |

42 | Wave Engery Spectrum | m^{-2} s rad^{-1} |
WESP |

43 | Kurtosis of The Sea Surface Elevation Due to Waves | - | KSSEW |

44 | Benjamin-Feir Index | - | BENINX |

45 | Spectral Peakedness Factor | s^{-1} |
SPFTR |

46 | Peak wave direction | ° | PWAVEDIR |

47 | Significant wave height of first swell partition | m | SWHFSWEL |

48 | Significant wave height of second swell partition | m | SWHSSWEL |

49 | Significant wave height of third swell partition | m | SWHTSWEL |

50 | Mean wave period of first swell partition | s | MWPFSWEL |

51 | Mean wave period of second swell partition | s | MWPSSWEL |

52 | Mean wave period of third swell partition | s | MWPTSWEL |

53 | Mean wave direction of first swell partition | ° | MWDFSWEL |

54 | Mean wave direction of second swell partition | ° | MWDSSWEL |

55 | Mean wave direction of third swell partition | ° | MWDTSWEL |

56 | Wave directional width of first swell partition | - | WDWFSWEL |

57 | Wave directional width of second swell partition | - | WDWSSWEL |

58 | Wave directional width of third swell partition | - | WDWTSWEL |

59 | Wave frequency width of first swell partition | - | WFWFSWEL |

60 | Wave frequency width of second swell partition | - | WFWSSWEL |

61 | Wave frequency width of third swell partition | - | WFWTSWEL |

62 | Wave frequency width | - | WAVEFREW |

63 | Frequency width of wind waves | - | FREWWW |

64 | Frequency width of total swell | - | FREWTSW |

65 | Peak Wave Period of First Swell Partition | s | PWPFSPAR |

66 | Peak Wave Period of Second Swell Partition | s | PWPSSPAR |

67 | Peak Wave Period of Third Swell Partition | s | PWPTSPAR |

68 | Peak Wave Direction of First Swell Partition | degree true | PWDFSPAR |

69 | Peak Wave Direction of Second Swell Partition | degree true | PWDSSPAR |

70 | Peak Wave Direction of Third Swell Partition | degree true | PWDTSPAR |

71 | Peak Direction of Wind Waves | degree true | PDWWAVE |

72 | Peak Direction of Total Swell | degree true | PDTSWELL |

73 | Whitecap Fraction | fraction | WCAPFRAC |

74 | Mean Direction of Total Swell | degree | MDTSWEL |

75 | Mean Direction of Wind Waves | degree | MDWWAVE |

76 | Charnock (see Note 2) | Numeric | CHNCK |

77 | Wave Spectral Skewness | Numeric | WAVESPSK |

78 | Wave Energy Flux Magnitude | W m^{-1} |
WAVEFMAG |

79 | Wave Energy Flux Mean Direction | degree true | WAVEFDIR |

80 | Raio of Wave Angular and Frequency width | Numeric | RWAVEAFW |

81 | Free Convective Velocity over the Oceans | m s^{-1} |
FCVOCEAN |

82 | Air Density over the Oceans | kg m^{-3} |
AIRDENOC |

83 | Normalized Energy Flux into Waves (see Note 3) | Numeric | NEFW |

84 | Normalized Stress into Ocean (see Note 3) | Numeric | NSOCEAN |

85 | Normalized Energy Flux into Ocean (see Note 3) | Numeric | NEFOCEAN |

86 | Surface Elevation Variance due to Waves (over all frequencies and directions) | m^{2} s rad^{-1} |
SEVWAVE |

87 | Wave Induced Mean Se Level Correction | m | WAVEMSLC |

88 | Spectral Width Index | Numeric | SPECWI |

89 | Number of Events in Freak Wave Statistics | Numeric | EFWS |

90 | U-Component of Surface Momentum Flux into Ocean | N m^{-2} |
USMFO |

91 | U-Component of Surface Momentum Flux into Ocean | N m^{-2} |
VSMFO |

92 | Wave Turbulent Energy Flux into Ocean | W m^{-2} |
WAVETEFO |

93 | Envelop maximum individual wave height | m | EMIWAVE |

94 | Time domain maximum individual crest height | m | TDMCREST |

95 | Time domain maximum individual wave height | m | TDMWAVE |

96 | Space time maximum individual crest height | m | STMCREST |

97 | Space time maximum individual wave height | m | STMWAVE |

98 | Goda peakedness factor | Numeric | GODAPEAK |

99-191 | Reserved | ||

192-254 |
Reserved for Local Use |
||

192 | Wave Steepness | proportion | WSTP |

193 | Wave Length | WLENG | |

255 |
Missing |

Notes:* Further information concerning the wave parameters can be found in the Guide to Wave Analysis and Forecasting (WMO-No. 702). (2) The Charnock parameter accounts for increased aerodynamic roughness as wave heights grow due to increasing surface stress. It depends on the wind speed, wave age and other aspects of the sea state and is used to calculate how much the waves slow down the wind. (3) Parameters are normalised by being divided by the product of air density and the square of the friction velocity. |

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