v2rev 12023-12-22Federal Maritime and Hydrographical Agency, Germany
significant wave height
0112/2///61360_4#AAF976
mean of the highest one-third of individual wave heights measured in a given period of time
- Used by classes
- 1
Also appears in1#
Entities with the same name in other dictionaries:
- Code
AAF976- Data type
- LEVEL(MAX,TYP) OF REAL_MEASURE_TYPE
- Unit
- UAA726 UAA726
Version history5#
IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.
All properties26#
- Version
- 2
- Revision
- 1
- Preferred name
- significant wave height
- Definition
- mean of the highest one-third of individual wave heights measured in a given period of time
- Definition source
- Federal Maritime and Hydrographical Agency, Germany
- Note
- The random nature of surface waves implies that individual waves can be substantially higher than the significant wave height. Highest individual waves in a typical storm with typical duration are approximately two times the significant wave height.
- Remark
- Waves higher than roughly twice the significant wave height fall into the category of freak or rogue waves
- Definition class
- 0112/2///61360_4#AAA233feature
- Unit structure
- m
- Drawing reference
- NR2..3.3
- Value format
- {0112/2///61360_4#AAF970}
- Initial value
- 0112/2///62720#UAA726 UAA726
- Responsible committee
- IEC/SC 3D
- Publisher
- IEC
- Published in
- IEC 61360-4
- Published in
- DEPENDENT_P_DET
- Status level
- Standard
- Version release date
- 2023-12-22
- Revision release date
- 2023-12-22
- Version initiation date
- 2023-12-22
- Change request ID
- C00149
- MDC_P022
- LEVEL(MAX,TYP) OF REAL_MEASURE_TYPE
- MDC_P025_1
- H_s}
- MDC_P040
- T03