Sasan S. Saatchi

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Spatially-explicit maps of aboveground biomass are essential for calculating the losses and gains in forest carbon at a regional to national level. The production of such maps across wide areas will become increasingly necessary as international efforts to protect primary forests, such as the REDD+ (Reducing Emissions from Deforestation and forest(More)
Despite early speculation to the contrary, all tropical forests studied to date display seasonal variations in the presence of new leaves, flowers, and fruits. Past studies were focused on the timing of phenological events and their cues but not on the accompanying changes in leaf area that regulate vegetation-atmosphere exchanges of energy, momentum, and(More)
ha or more. Our results indicate that the 50-ha BCI plot lost a significant amount of 20 biomass (−0.8±2.2Mgha−1 yr−1) over the past decade (2000–2010). Over the entire island and during the same period, mean AGB change is −0.4±3.7Mgha−1 yr−1. Old growth forests lost biomass (−0.7±3.5Mgha−1 yr−1), whereas the secondary forests gained biomass (+0.4±3.4Mgha−1(More)
An ecological process model (BIOME-BGC) was used to assess boreal forest regional net primary production (NPP) and response to short-term, year-to-year weather fluctuations based on spatially explicit, land cover and biomass maps derived by radar remote sensing, as well as soil, terrain and daily weather information. Simulations were conducted at a 30-m(More)
The European Space Agency (ESA) released a Call for Proposals for the next Earth Explorer Core Mission in March 2005, with the aim to select the 7 Earth Explorer (EE-7) mission for launch in the next decade. Twentyfour proposals were received and subject to scientific and technical assessment. Six candidate missions were selected and further investigated in(More)
Critical to the mitigation of parasitic vector-borne diseases is the development of accurate spatial predictions that integrate environmental conditions conducive to pathogen proliferation. Species of Plasmodium and Trypanosoma readily infect humans, and are also common in birds. Here, we develop predictive spatial models for the prevalence of these blood(More)