| Summary: | Benthic habitat mapping using Quickbird imagery is one of the marine
resource management efforts. QuickBird has a high spatial resolution making it is
suitable for detailed mapping of the narrow region. The purpose of the study is
(1) to know the Quickbird imagery capabilities for identification of benthic
habitat in part of Kemujan Island, Karimunjawa Archipelago, (2) Mapping the
distribution of benthic habitats in the study area, (3) to know the difference
between benthic habitat mapping accuracy results with and without correction of
the water column with Lyzenga method. Water column correction method used in
this research is a method developed by David R. Lyzenga by calculating the ratio
of attenuation coefficients that occur in the waters, then the result is calculated
with a water depth algorithm invariant bottom index, known as Lyzenga method
to compensate the water depth effect. The results of this study indicate that
QuickBird imagery is able to identify benthic habitats with an accuracy of 58.38%
(without water column correction ) and 67.70% (with a water column correction)
the use of water column correction increase the accuracy 9.32%, but the results of
accuracy assessments still be quite low because of various factors that influence.
The results of mapping the extent of any difference in the classification of all
classes. Sand area of most significant changes due to the existence of sand which
occupies different variations of depths.
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