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NASA posted a map detailing the “Aboveground Woody Biomass” in the continental United States (in other words, trees).
Josef Kellndorfer and Wayne Walker of the Woods Hole Research Center (WHRC) recently worked with colleagues at the U.S. Forest Service and U.S. Geological Survey to create such an inventory for the United States. The map above was built from the National Biomass and Carbon Dataset (NBCD), released in 2011. It depicts the concentration of biomass—a measure of the amount of organic carbon—stored in the trunks, limbs, and leaves of trees. The darkest greens reveal the areas with the densest, tallest, and most robust forest growth.
Over six years, researchers assembled the national forest map from space-based radar, satellite sensors, computer models, and a massive amount of ground-based data. It is possibly the highest resolution and most detailed view of forest structure and carbon storage ever assembled for any country.
Forests in the U.S. were mapped down to a scale of 30 meters, or roughly 10 computer display pixels for every hectare of land (4 pixels per acre). They divided the country into 66 mapping zones and ended up mapping 265 million segments of the American land surface. Kellndorfer estimates that their mapping database includes measurements of about five million trees.
Since I live in the greener part of Appalachia, this explains why I went to Colorado and expected to be really impressed with the Rockies, but was puzzled at the lack of trees. Link -via Buzzfeed
In an update on the story about the new military robot in development that refuels itself by consuming biomass, Robot Technologies and Cyclone Power Technologies Inc. issued a press release denying that its robot would consume human bodies. Wired published the release, which says in part:
RTI’s patent pending robotic system will be able to find, ingest and extract energy from biomass in the environment. Despite the far-reaching reports that this includes “human bodies,” the public can be assured that the engine Cyclone has developed to power the EATR runs on fuel no scarier than twigs, grass clippings and wood chips – small, plant-based items for which RTI’s robotic technology is designed to forage. Desecration of the dead is a war crime under Article 15 of the Geneva Conventions, and is certainly not something sanctioned by DARPA, Cyclone or RTI.
Robotic Technology is developing a robot called EATR, which stands for Energetically Autonomous Tactical Robot. It’s more than just an acronym. The machine will be able to go on long range and long distance missions and refuel itself by foraging and consuming “biomass” as well as conventional fuels. This biomass could theoretically include dead bodies.
That “biomass” and “other organically-based energy sources” wouldn’t necessarily be limited to plant material — animal and human corpses contain plenty of energy, and they’d be plentiful in a war zone.
EATR will be powered by the Waste Heat Engine developed by Cyclone Power Technology of Pompano Beach, Fla., which uses an “external combustion chamber” burning up fuel to heat up water in a closed loop, generating electricity.
The advantages to the military are that the robot would be extremely flexible in fuel sources and could roam on its own for months, even years, without having to be refueled or serviced.
Link to story. Link to website. -Thanks, Brother Bill!
