Sökning: "forest biomass retrieval"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden forest biomass retrieval.
1. Biomass Retrieval in Topographic Boreal Forest using Polarimetric and Tomographic SAR in P- and L-band
Sammanfattning : Forests and their associated habitats are an integral part of Earth's biosphere and provide essential environmental services. There is an ever present need for accurate and economic monitoring of forest parameters such as biomass - of great interest both locally, for forest management and resource utilization, and globally as it represents stored atmospheric CO2 and one of the largest uncertainties in climate modelling. LÄS MER
2. Estimation of Forest Biomass and Faraday Rotation Using Polarimetric L-/P-band SAR
Sammanfattning : At present the greatest source of uncertainty in the global carbon cycle is in the terrestrialecosystems. In order to reduce these uncertainties it is necessary to provide consistent andaccurate global estimates of the biomass contained in the forests of the world. LÄS MER
3. Characteristics of Vertical Forest Backscatter Profiles Measured using Radar Tomography
Sammanfattning : Forests are an integral part of the Earth’s climate system, having shaped the conditions of life throughout millions of years, but the coverage and conditions of forests are under rapid change. To monitor this change and predict the impact on climate, yearly global mapping of forest Above-Ground Biomass (AGB) is needed. LÄS MER
4. Modelling and Retrieval of Forest Parameters from Synthetic Aperture Radar Data
Sammanfattning : Currently, one of the most uncertain factors in the global carbon cycle models lies in the terrestrialcarbon stock, mainly forests. The available methods for global forest resource mapping provide onlyrough estimates of biomass, the most relevant practical quantity related to carbon stock. LÄS MER
5. Radar Remote Sensing of Forests Using CARABAS and ERS
Sammanfattning : Forests cover more than 30% of the Earth's land surface, and represent an important resource. In order to manage this resource effectively, accurate and up-to-date information is required on the extent and state of the forests. Radar remote sensing offers the possibility of providing some of this information. LÄS MER