Greening seems to have increased during the 1980s and 1990s in the northern hemisphere from the arctic regions down to the 35th parallel of latitude (roughly southern Europe). This has been shown by measurements from space satellites. Some observers, however, have doubted the reliability of these measurements. In the latest issue of Science, a research team from the Institute for Climatic Impacts Research in Potsdam, the Max Planck Institute for Biogeochemistry in Jena, and Lund University presents new findings that support the satellite observations.
The research team has fed in the current values for temperature, precipitation, solar radiation, cloud cover, and carbon dioxide content during the period 1982-1998 in a model for vegetation growth. It is called the LPJ Model and was developed at Lund by Colin Prentice, Stephen Sitch, and Ben Smith. Of the three, the former two are now in Jena, whereas ecologist Benjamin Smith is associated with the Department of Physical Geography and Ecosystem Analysis at Lund University in Sweden.
Vegetation has been measured from space using AVHRR, Advanced Very High Resolution Radiometry. This is a spectroscopic method that can register when light reflects from the surface of green leaves.
Göran Frankel | alphagalileo
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What if a sensor sensing a thing could be part of the thing itself? Rice University engineers believe they have a two-dimensional solution to do just that.
Rice engineers led by materials scientists Pulickel Ajayan and Jun Lou have developed a method to make atom-flat sensors that seamlessly integrate with devices...
Scientists at the University of Stuttgart and the Karlsruhe Institute of Technology (KIT) succeed in important further development on the way to quantum Computers.
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New Project SNAPSTER: Novel luminescent materials by encapsulating phosphorescent metal clusters with organic liquid crystals
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Scientists have discovered the first synthetic material that becomes thicker - at the molecular level - as it is stretched.
Researchers led by Dr Devesh Mistry from the University of Leeds discovered a new non-porous material that has unique and inherent "auxetic" stretching...
Scientists from the Theory Department of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science (CFEL) in Hamburg have shown through theoretical calculations and computer simulations that the force between electrons and lattice distortions in an atomically thin two-dimensional superconductor can be controlled with virtual photons. This could aid the development of new superconductors for energy-saving devices and many other technical applications.
The vacuum is not empty. It may sound like magic to laypeople but it has occupied physicists since the birth of quantum mechanics.
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10.12.2018 | Life Sciences
10.12.2018 | Physics and Astronomy
10.12.2018 | Life Sciences