ICESat-2 Data as a Potential Predictor of Canopy Height in Lowlands Vegetation Area of Samarinda City, East Kalimantan
摘要
Ice, Cloud, and Land Elevation Satellite 2 or ICESat-2 is a NASA’s satellite mission for measuring the thickness of sea ice and ice sheet elevation of the earth. Bringing the Advance Topographic Laser Altimeter System (ATLAS) instrument onboard, ICESat-2 is scanning both ice sheet in the polar region and the vegetation canopy in the terrestrial region. In this study, one of the ICESat-2 products i.e. ATL08 which contains canopy relative height data were examined with the actual canopy height data measured from 10 circular sample plots. Using t-test: paired two samples for means, the actual and relative height data were used to test the null hypothesis (mean of actual canopy height = mean of canopy relative height). The t-test calculation showed that p-value at level of significant (alpha) 0.05 is 0.19 (n = 10). This result implies that the canopy height of ICESat-2 is not significantly different compare to the height of the canopy measured from the ground. This study reveals the capability of ATL08 data as potential predictor of canopy tree height of vegetated lowland areas in the city of Samarinda in East Kalimantan.