The International Geoscience and Remote Sensing Symposium (IGARSS) is a major annual event sponsored by the Geoscience and Remote Sensing Society to bring scientists, engineers and community leaders from all over the world to discuss the latest research findings and up-to-date technology for better understanding Earth.
IGARSS 2007 General Chairman, Prof. Ignasi Corbella, said: "Information gathered by all sensors and techniques must be wisely used mainly to understand our Earth. This will improve prediction of natural disasters or global climate change and provide tools to mitigate their consequences.
"As experts on the leading-edge technologies of Earth Observation (EO), we should play a prominent role in achieving these goals. This is our contribution to the important task of assuring people of all around the world access to resources for their subsistence without endangering the fragile equilibrium of our planet."
With their unique view from space, satellites provide objective coverage across both space and time enabling a better understanding and improved management of the Earth and its environment. ESA’s EO satellites have given Europe a leading role in understanding the Earth’s climate, weather and environment.
Scheduled for launch in late 2008, the Soil Moisture and Ocean Salinity (SMOS) mission – the second Earth Explorer mission to be developed as part of ESA's Living Planet Programme – will contribute to furthering our knowledge of the Earth's water cycle and lead to better weather and extreme-event forecasting.
SMOS was the subject of a full day session on Thursday, with presentations covering instruments technology, calibration techniques and retrieval algorithms. SMOS will demonstrate a new measuring technique by adopting a completely different approach in the field of observing the Earth from space. A novel instrument has been developed that is capable of deriving both soil moisture and ocean salinity by capturing images of emitted microwave radiation around the frequency of 1.4 GHz (L-band). SMOS will carry the first-ever, polar-orbiting, space-borne, 2-D interferometric radiometer.
"It has been a big challenge to get this technology working but from the tests done so far on the ground, it appears we have got it right," ESA’s SMOS Project Manager Achim Hahne said. "Of course the real proof will come once we have launched the satellite and started analysing the measurements."
Although soil only holds a small percentage of the total global water budget, soil moisture plays an important role in the global water cycle as it controls vegetation growth to a large extent. Because in-situ measurements of soil moisture are sparse, more data are urgently required if we are to better our understanding of the water cycle so that the forecasting of climate, weather and extreme-events can be improved.
The same is true for data on ocean salinity. There are few historical measurement data, and only a small fraction of the ocean is currently sampled on a regular basis. Salinity and temperature determine the density of seawater, and in turn, density is an important factor driving the currents in our oceans. Ocean circulation plays a crucial role in moderating the climate by, for example, transporting heat from the Equator to the poles. Ocean salinity is therefore one of the key variables for monitoring and modelling ocean circulation.
The next IGARSS symposium will take place in Boston, Massachusetts, from 7 to 11 July 2008.
Mariangela D'Acunto | alfa
Oasis of life in the ice-covered central Arctic
24.10.2016 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
24.10.2016 | Earth Sciences
24.10.2016 | Life Sciences
24.10.2016 | Physics and Astronomy