Karin Viergever

Learn More
Deforestation of mangroves is of global concern given their importance for carbon storage, biogeochemical cycling and the provision of other ecosystem services, but the links between rates of loss and potential drivers or risk factors are rarely evaluated. Here, we identified key drivers of mangrove loss in Kenya and compared two different approaches to(More)
Tropical savannas cover 15% of the Earth’s land surface and are important ecosystems in the global Carbon cycle due to their high productivity. SAR interferometry and backscatter are investigated for estimating biomass in a tropical savanna in Belize, Central America. Single-pass InSAR data used are C-band (AIRSAR) and X-band (Intermap); SAR backscatter(More)
Although use of radar for biomass estimation has been widely investigated for temperate forests (usually managed), boreal forests and tropical rainforests, tropical savanna woodlands have been largely neglected in biomass studies ([1] and [2] are a few examples). Sparse woodlands such as those that occur in Belizean savannas are a challenge for radar remote(More)
The cost models for return on investment for constellations of large spacecraft providing high quality, high temporal resolution Earth observation data are not currently sustainable. Even with economies of scale, the costs involved in the materials and launch of the spacecraft alone will result in an expensive final product only accessible for customers of(More)
  • 1