Change detection of mangrove cover and above-ground biomass in the Ciénaga Grande de Santa Marta, Colombia, using multisource remote sensing data
Adriana Sofia Parra, Jet Propulsion Laboratory / Caltech, adriana.s.parra@jpl.nasa.gov (Presenter)
Paulo Murillo, Universidad del Tolima, murillop@oregonstate.edu
Nathan Thomas, University of Maryland/NASA Goddard Space Flight Center, nathan.m.thomas@nasa.gov
Temilola E. Fatoyinbo, NASA GSFC, lola.fatoyinbo@nasa.gov
Marc Simard, Jet Propulsion Laboratory / Caltech, marc.simard@jpl.nasa.gov
The mangrove forest of the Ciénaga Grande de Santa Marta (CGSM) has experienced severe alterations in extent and structure for the past 60 years, mainly due to human-induced modifications of the hydrological fluxes of this lagoon complex. Large die-off events in the 1980’s, followed by mangrove restoration projects starting in the 1990’s, resulted in a current mangrove extent estimated to be approximately 66% of the original area. In recent years, the dynamic of mangrove cover loss and gain in the CGSM has been heavily influenced by climatic events which indicates this system’s vulnerability to future climate change. In this study, we evaluated the benefits of using multisource remote sensing data for land cover and structural change detection in the CGSM, with the main objective of identifying areas of mangrove degradation, regeneration, loss, or gain, and the derived effects on the above-ground biomass pool. We mainly based our analysis on spaceborne LiDAR data from the Global Ecosystems Dynamics Investigation (GEDI), and the Ice, Cloud, and Land Elevation Satellite (ICESat-2) to evaluate changes on vertical mangrove structure and estimate biomass. Additionally, we incorporated Synthetic Aperture Radar (SAR) imagery from Sentinel-1 and ALOS/PALSAR and optical imagery from Sentinel-2 to extend the spatial and temporal coverage of the mangrove cover and biomass estimations.
Poster: Poster_Parra_1-14_159_35.pdf
Associated Project(s):
Poster Location ID: 1-14
Presentation Type: Poster
Session: Poster Session 1
Session Date: Tue (May 9) 5:00-7:00 PM
CCE Program: LCLUC