Mrs
Pascale Dubois-Fernandez
(ONERA)
18/11/2015, 16:30
Forestry
The first part of the AfriSAR campaign was conducted over sites in Gabon in July 2015 with the ONERA airborne system SETHI and the second part will be performed with the DLR airborne system F-SAR in February 2016. The main objective of this campaign is to collect data to support the development of the Earth Explorer candidate mission, Biomass. The following specific scientific questions...
Ms
Elsa Carla De Grandi
(University of Edinburgh)
18/11/2015, 16:50
Forestry
Forest disturbance due to fire and subsequent regeneration are important processes particularly in South East Asia. Forests damaged by fire are still valuable in terms of conservation due to their ability to recover, sequester carbon and restore ecosystem services and should therefore be monitored. Sungai Wain Protected Forest (SWPF) located near the city of Balikpapan, East Kalimantan was...
Mr
Simone Vaccari
(LTS International Ltd.)
18/11/2015, 17:10
Forestry
Forest degradation is an important source of emissions of carbon dioxide, a greenhouse gas. In many African woodland countries, degradation is a more substantial source of carbon dioxide emissions than deforestation, but degradation cannot be accurately measured using optical remote sensed data such as Landsat. LTS International and the University of Edinburgh have developed FoRAsT (Forest...
Dr
Jörg Haarpaintner
(Norut - Northern Research Institute)
18/11/2015, 17:30
Forestry
The overall goal of the ESA funded DUE Innovator III project “SAR for REDD” is to provide satellite synthetic aperture radar (SAR) pre-processing and analyzing capabilities and tools for operational tropical forest monitoring to REDD countries and primarily in Africa.
The UN initiative Reducing Emissions from Deforestation and Forest Degradation, including conservation, sustainable...
Dr
Stefano Tebaldini
(PoliMi)
19/11/2015, 09:30
Forestry
This paper concerns the evaluation of the performance of the future SACOOM-CS spaceborne mission for the characterization of boreal forests. This assessment is based on estimates and indicators obtained from airborne tomographic acquisitions led during the BioSAR 2 campaign. A comparison is led between results obtained from original high-quality measurements to those derived from degraded data...
Dr
Matteo Pardini
(German Aerospace Center (DLR))
19/11/2015, 09:50
Forestry
Microwaves can propagate through vegetation layers, allowing the radar signal to interact with the different physical forest structure elements. Exploiting this property, SAR Tomography techniques provide a 3D profile of the backscattered radar power providing a proxy to the physical forest structure. This capability has been demonstrated by means of several (long wavelength) airborne...
33.
Radar backscatter of forests: Recent advances and application to the retrieval of forest biomass
Dr
Thuy Le Toan
(CESBIO)
19/11/2015, 10:10
Forestry
Assessing terrestrial ecosystems as carbon sources or sinks and predicting their changes under different scenarios of climate change requires accurate and repetitive estimates of forest biomass.
For this purpose, the Biomass mission has been selected as the 7th ESA Earth Explorer mission, a P-band SAR satellite dedicated to global biomass measurements.
During the preparation phase of...
Dr
Joao Carreiras
(National Centre for Earth Observation (NCEO), University of Sheffield)
19/11/2015, 10:50
Forestry
Land use and land cover change, particularly conversion from forest to non-forest, is the second largest source of greenhouse gases emissions. Global deforestation is mostly concentrated in the tropics, with severe consequences for carbon stocks depletion and major impacts on biodiversity, with most of the cleared land occupied with annual or perennial crops, plantations or cattle ranching....
Dr
Pierre-Louis FRISON
(Universite Paris-Est Marne-la-Vallée - MATIS - IGN / CESBIO)
19/11/2015, 11:10
Forestry
SAR data are well suited for the retrieval of biomass from vegetated areas. In particular, the ability of low frequencies to deeply penetrate dense vegetation, allows P band radar data to retrieve high biomass levels that can be encountered over forests, where other frequencies show their limitations.
Up to know many biomass retrieval methods are based on multi-linear regressions using the...
Dr
Ludovic Villard
(CESBIO)
19/11/2015, 11:30
Forestry
To support the selection of Biomass as the 7th ESA Earth Explorer mission, an essential part of the work was to demonstrate that the Above Ground Biomass (AGB) of dense forests (above 300 t/ha) can be retrieved from P-band SAR data, given the importance of tropical forests in the carbon cycle. Using PolSAR data, the retrieval of AGB in tropical forest is a challenging task given the small...
