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Geostatistical Interpolation of Surface Sediment Distributions in Taman
Laut Labuan
Nurul Fatin binti Abd Mutalib
Supervisor: Dr. Khaira binti Ismail
Bachelor of Science (Marine Science)
School of Marine and Environmental Sciences
Geostatistical interpolation have been used to obtain detailed and precise map of
median grain size distribution of sediments for years. Atmospheric processes together
with major marine processes such as waves and tides had influenced the variability of
grain size sediment. In this study, 25 sediment samples were collected in Taman Laut
Labuan and median grain size of sediment were calculated. Kriging interpolation was
used and ordinary kriging was compared with ordinary cokriging that makes use of
secondary information to assist in the interpolation. Cross validation method was
introduced to measure errors of estimation results by the two interpolation methods
and discussed accuracy of information contained in the estimation results. Here we
show that ordinary cokriging proved to be the best technique since the value of RMSE
near to 1 when cross validation was performed. Our study allows for defining grain
size classes that can be adapted for another relatable studies.
1911 | UMT UNDERGRADUATE RESEARCH DAY 2018