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Field/Ground Verifications Techniques of Remote Sensing Images
for Mangrove at Batam Island
BAKOSURTANAL
(National Coordinating Agency for Survey and Mapping)
Jl. Raya Jakarta-Bogor Km 46 Cibinong 16911 Indonesia
Abstract:
Batam Island is situated between Indonesia and Singapore. The rapid extensive development of this island have been making pressure on mangrove formation, as one of the valuable coastal natural resource. Remote sensing can give information about the density of mangrove and about the changes overtime. The aims of this study was to apply field verification method for the assessment satellite imagery data, with PDA and Buetooth GPS hardware and ArcPad software. Landsat and Aster satellite images were used for creating maps of the color composit, and after applying NDVI and visual interpretation, the result (low, moderate and high density mangrove) uploaded to PDA. The transect quadrant method was conducted as in-situ measurement. This study shows that ArcPad is a very useful tool for field-based mangrove validation.
Introduction
1.1. Introduction
This paper is to describe what we have done in our office, Centre for Marine Resources Survey, as one of division at National Coordinating Agency for Surveys and Mapping our task is to make thematic maps especially the marine natural resources i.e. mangroves, sea grass and coral reef. As a new user on ArcPad Software, PDA and BT-GPS, we tried to implement this verification method on the field, especially on mangrove.
Batam Island is the largest islands in the Riau archipelago. This island was just an ordinary island with coastal villages and unspoiled environment, unless after the Batam Free Trade Zone declared on 1989, the island has changed dramatically, now it has modern airport, tourist and business center and growing infrastructure, last but not least the settlement. The positions of this island is also strategic, it lies between Indonesia and Singapore, close to Malacca Strait.
Mangroves at Batam, like any other place in the world being threaten by by the expansion of the large-scale human settlements, conversion of mangrove areas for shrimp and fish farming, and high demand for charcoal.
Scope and Objectives of The Study
The combination of Remote Sensing and Geographic Information System gives us the opportunity to monitor the changes of mangrove coverage.
Field study using PDA and Bluetooth GPS with ArcPad Software.