Abstract
This article examines the application of image enhancement techniques on high resolution and multi-spectral WorldView 2 satellite images in aid of remote sensing a past gold trading trail in Northwestern Luzon that was used from the PreSpanish Contact Period 10th to 16th c and the Spanish Contact Period (17th to 19th c). In delineating the corridor for the research, several ethnohistorical accounts were followed as interlocutors. The article posits that segments of the Aringay-Tonglo-Balatok gold trail are still visible on the landscape while other segments may have been converted to contemporary farm-to-market roads. Identification of the segments was made possible by application of image enhancement techniques on WorldView2 satellite imagery including resolution merge using Brovey transform, unsupervised classification using a fusion of built-up index and vegetation index. Satellite band combination for mining operations (yellow-NIR1-red edge), modified false color Infrared (NIR1-green-blue), and soils and constructions (red-blue-yellow) have also been of immense utility.
Highlights
This article is part of a long-term research project that looks at the gold tabu-tabuan/tiangge or evanescent market encounter in NorthwesternLuzon Island between the 10th to the early 20th c
For this article the focus is the movement of gold within the present- day provinces of southern Benguet and southern La Union in Luzon from the gold mines of Acupan/ Balatok to Tongo bulking village and eventually to Aringay and Agoo coastal maritime trading center (CMTC)
The article aligns itself with the middle-range theory in archaeology which proposes that human behavior in the past will be manifested in some way in the modern landscape
Summary
This article is part of a long-term research project that looks at the gold tabu-tabuan/. For this article the focus is the movement of gold within the present- day provinces of southern Benguet and southern La Union in Luzon from the gold mines of Acupan/ Balatok to Tongo bulking village and eventually to Aringay and Agoo coastal maritime trading center (CMTC). The analysis shows that Ibaloi from Tonglo were in a position to deal with the maritime traders directly without being cut-off from the loop by the lowland coastal chief (middle person). They were able to negotiate their peripherality
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