INVESTIGATION OF SUSPENDED PARTICULATE MATTER USING MODIS AQUA IMAGES

Convention Bandung 2004 (CB2004)
The 33rd Annual Convention & Exhibition 2004

Indonesian Association of Geologist
Horizon Hotel, 29-30 Nov, 1 Oct 2004, Bandung

INVESTIGATION OF SUSPENDED
PARTICULATE MATTER USING MODIS
AQUA IMAGES

(MEMANTAU SEBARAN SEDIMEN TERLARUT
DENGAN CITRA MODIS AQUA)

Afiat Anugrahadia and Nani Hendiartib

aDepartment of Geological Engineering /Center of Mineral Resources and Marine Coastal

Management Studies, FTM, University of Trisakti, Kyai Tapa 1, Jakarta 11440. Email:

afiat_anu@yaho.com

bAgency for the Assessment and Application of Technology, M.H. Thamrin 8, Jakarta

10340. Email : hendiarti@webmail.bppt.go.id

Abstract

Geological processes which are continuously occured for long time are
agradation as a development characteristic and degradation as destructive.
This process has been continued until now. Agradation is not always
advantage for human living but often disadvantage esspecially on the coastal
and marine region. For example superviciality of downstreams and harbour, and
making turbid, that are disadvantage of recent sedimentation.Suspended
sediment is inorganic matter originated from coastal discharge of river, wetland,
coastal and bottom sea abration, and than human activity. Coastal
discharge distributed by wind and surface current. The surface pattern of the
discharged water can be recognized from the satellite ocean color images such
as SeaWiFS dan MODIS Aqua. The discharged water which is dominated by
inorganic particulate matter can be identified by increasing the energy values
in the long visible wavelength range. This wavelength range is in between
510nm and 550nm. The results obtained from the investigation of suspended
particulate matter using ocean color MODIS Aqua images show that high
concentration of organic matter is founded in East Sumatra of Java Sea and
spread to Seribu Islands in North of West Java forced by the west winds during
the second week of Mei 2004. The distribution of the material was observed
until 3.5 miles in north of Jakarta bay and its spread also along north Java
coast. This fenomena is occured in the period of thousand fish killed in this
region.

The conclusion is that remote sensing can be used for mapping coastal
discharge in spatial with sufficiently and continuously. Moreover, spectral
analysis can produced the information of the composition and concentration of
organic and inorganic matter in the waters near surface. These information is
useful for monitoring the environmental changes and for early warning system
of environment disarter.