Technical Paper
Indonesian Seastate Condition and Its Wave Scatter Map
Tahun 2018
Global Wave statistics (GWS) that is commonly used as references for the ocean
environmental source requires wave scatter diagram as data sources. Within GWS, 104 areas
in the world are covered, and each area has its wave scatter data. The wave scatter data could
present the properties of significant wave height at the corresponding area, such as the
maximum sea state condition, long-term probability, mean cross period, and wave spectrum
specification. Generally, GWS covers the ocean around the world, however, there are some
areas that are cover on the map. The example of uncovered area is Indonesian waterways. In
order to give additional information of ocean environmental condition for the blank spot area,
it is needed to develop the Indonesian wave scatter map/diagram. In this report, the
Indonesian wave scatter map/diagram is developed based on the hind cast data that is
collected from spatial area covered from 75E to 165E and 15N to 15S. The European
Center for Medium range weather forecasts (ECMWF) are chosen to provide the source data
of significant wave height, mean period and wave direction. The time history of significant
wave height, mean period and wave direction are compiled, assembled and analyzed to
provide the advanced information of Indonesian waterways characteristics. The statistical
characteristics of the data is also examined and discussed
For further information, please contact: rnd@bki.co.id.