Monthly Archives: July 2014

Satellite-based land-cover mapping of Cabadabaran, Mainit-Tubay and Tago River completed

The land-cover maps of Year 1 project areas namely Cabadbaran, Mainit-Tubay and Tago River Basins have been completed. The maps were generated through analysis of year 2014 Landsat 7 ETM+ and Landsat 8 OLI satellite images.

Map_FinalLandcover_CabadbaranMainitTubay_edited

The Year 2014 Land-cover Map of Cabadbaran and Mainit-Tubay River Basins.

Map_FinalLandcover_Tago_edited

The Year 2014 Land-cover Map of Tago River Basin.

Information on the type and distribution of land-cover within a river basin is an important requirement for flood model development. Land-cover information is utilized in two aspects: (i) to compute how runoff is generated in the upstream watersheds during a rainfall event, and (ii) to determine how smooth or rough the surfaces are within the river basin which is necessary in quantifying the propagation speed and volume of flooding in the floodplains.