25 October 2016 Mapping species distribution of Canarian Monteverde forest by field spectroradiometry and satellite imagery
Author Affiliations +
Abstract
Reliable and updated maps of vegetation in protected natural areas are essential for a proper management and conservation. Remote sensing is a valid tool for this purpose. In this study, a methodology based on a WorldView-2 (WV-2) satellite image and in situ spectral signatures measurements was applied to map the Canarian Monteverde ecosystem located in the north of the Tenerife Island (Canary Islands, Spain). Due to the high spectral similarity of vegetation species in the study zone, a Multiple Endmember Spectral Mixture Analysis (MESMA) was performed. MESMA determines the fractional cover of different components within one pixel and it allows for a pixel-by-pixel variation of endmembers. Two libraries of endmembers were collected for the most abundant species in the test area. The first library was collected from in situ spectral signatures measured with an ASD spectroradiometer during a field campaign in June 2015. The second library was obtained from pure pixels identified in the satellite image for the same species. The accuracy of the mapping process was assessed from a set of independent validation plots. The overall accuracy for the ASD-based method was 60.51 % compared to the 86.67 % reached for the WV-2 based mapping. The results suggest the possibility of using WV-2 images for monitoring and regularly updating the maps of the Monteverde forest on the island of Tenerife.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Antonio Martín-Luis, Antonio Martín-Luis, Manuel Arbelo, Manuel Arbelo, Pedro Hernández-Leal, Pedro Hernández-Leal, Manuel Arbelo-Bayó, Manuel Arbelo-Bayó, } "Mapping species distribution of Canarian Monteverde forest by field spectroradiometry and satellite imagery", Proc. SPIE 9998, Remote Sensing for Agriculture, Ecosystems, and Hydrology XVIII, 99981M (25 October 2016); doi: 10.1117/12.2241993; https://doi.org/10.1117/12.2241993
PROCEEDINGS
8 PAGES


SHARE
Back to Top