INVESTIGATION OF SUSPENDED PARTICULATE MATTER USING MODIS AQUA IMAGES

Convention Bandung 2004 (CB2004) The 33^rd 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

 

A fiat Anugrahadi^a and Nani Hendiarti^b

^aDepartment of Geological Engineering /Center of Mineral Resources and Marine Coastal
Management Studies, FTM, University of Trisakti, Kyai Tapa 1, Jakarta 11440. Email:
afiatanu@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.