Comparison of PolSAR and PolInSAR Method to Estimate Mangrove Carbon Stocks in Southeast Sulawesi Indonesia, using ALOS PALSAR Dual-Polarizationsin the Perspective of Climate Change Mitigation
This paper was aimed to compare Polarimetric Synthetic Aperture Radar (PolSAR) and Polarimetric Interferometry Synthetic Aperture Radar (PolInSAR) for estimation of mangrove carbon stocks ini Southeast Sulawesi, Indonesia. Mangrove carbon stocks becomes one of key parameter to study climate change and its impact to human being and environment due to its ability to sink carbon from atmosphere more than the land forest. The method of the research is conducting carbon volume analysis from backscatter coefficient of PolSARand comparing the result to carbon volume obtained from PolInSAR method. Random Volume over Ground was used to model tree biophysical aspect which established from PolInSAR method. We used two images of ALOS PALSAR dual-polarization(HH+HV) with 46 days temporal baseline. Field survey conducted to measure Diameter at Breast Height (DBH) and mangrove tree height to obtain actual carbon stocks. The result showed the PolSAR method which indicated by HV polarization is suitable for mangrove up to 40 t ha-1 (R2=0.8982) while using PolInSAR, carbon stockscan be estimated up to 60 t ha-1 (R2=0.6606). However, the PolSAR method indicated saturation of backscatter correlation to carbon stocks.Using the PolInSAR, based on the RVoG model, the tree height distributed from 0 to 25 meters which less than 20 meters heights dominated the study area. This research has confirmed the usage of dual-pol ALOS PALSAR for carbon mapping particularly for mangrove. From PolSAR and PolInSAR method, mangrove carbon stocks estimated in thestudy arearange between 40 to 60 t Ha-1.
Disclaimer/Regarding indexing issue:
We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.