More than 150 researchers from across Europe, Canada, the United States, China and as far away as Chile have come together to recount their many and varied uses of a single instrument – a desk-sized camera called MERIS, hurtling through space aboard Envisat at more than seven kilometres per second.
The Medium Resolution Imaging Spectrometer (MERIS) is one of ten sensors on Envisat, looking down from the earthward face of the spacecraft. It works by recording visible and near-infrared radiation reflecting from our planet across a range of up to 15 programmable wavebands, to a resolution of either 1200 or 300 metres.
This flexibility and the excellent radiometric and spectral performance designed into the instrument means that scientists can make use of MERIS data across many different fields, variously obtaining information on Earths oceans, coastal zones, land surfaces and atmosphere – and potentially combining it with results from other Envisat instruments.
Since MERIS was launched as part of Envisat in March 2002 there have been several gatherings concerned with complex calibration and validation processes needed to fine-tune instrument performance, but last weeks MERIS Users Workshop 2003 was the first time that users of MERIS products had a chance to meet up, share initial results and exchange their views of MERIS with ESA and each other.
Peter Regner | alfa
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Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
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Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...
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