Dr
Stefano Tebaldini
(Politecnico di Milano)
18/11/2015, 09:20
Ice and Snow
Characterisation of snow and ice plays a pivotal role in understanding and monitoring changes in the global climate and ecosystem. Monitoring inland snowpack properties is a most important issue for the management of water resources, especially in the present context of climate change. The properties of sea ice and its snow cover control the amount of solar radiation reflected to the...
Dr
Stefano Tebaldini
(Politecnico di Milano)
18/11/2015, 09:40
Ice and Snow
The main objective of the AlpTomoSAR experiment was then to assess the added value of L-Band TomoSAR for glacier and icecap applications, by discussing:
o The level of analogy/complementarity/synergy of TomoSAR w.r.t. Nadir looking systems.
o The added value w.r.t. single baseline inversion.
o The information content of SAOCOM-CS TomoSAR over glaciers, icecaps and ice sheets.
The...
Dr
Armando Marino
(The Open University)
18/11/2015, 10:00
Ice and Snow
SAR is very valuable for monitoring icebergs due to its capability to acquire images with almost any weather condition and without solar illumination. In SAR images, icebergs are often visible as bright regions or points (depending on iceberg size and image resolution). This work is focused on the detection of smaller icebergs or thick/deformed blocks of sea ice embedded in thinner sea ice....
Mr
Juval Cohen
(Finnish Meteorological Institution)
18/11/2015, 10:20
Ice and Snow
Satellite based snow cover monitoring is typically performed using SAR, optical-, and passive microwave sensors. Effects of forest canopy on the observed signal need to be considered with all of these sensor types. Various models describing the interaction of electromagnetic radiation with the forest canopy have been developed, but in particular for radar backscattering, many of these are...
Dr
Hannah Vickers
(Northern Research Insitute)
18/11/2015, 10:40
Ice and Snow
Snow avalanches, both natural and human released, occur frequently throughout the winter season in the mountainous regions of Troms county in northern Norway. These avalanches can lead to road closures, community evacuations and fatalities. It is therefore desirable to develop a method by which snow avalanches can be actively mapped and monitored, especially in avalanche-prone areas that are...
Mr
Helmut Rott
(ENVEO IT)
18/11/2015, 11:20
Ice and Snow
Several field campaigns were conducted in recent years in order to advance the understanding of radar interaction with seasonal snow and to support Phase-A science activities for the ESA Earth Explorer candidate mission CoReH2O. Ku- and X-band backscatter data were acquired by ground-based scatterometer systems and the airborne SnowSAR sensor. The test sites cover tundra sites in Manitoba and...
Dr
Andreas Wiesmann
(GAMMA Remote Sensing)
18/11/2015, 11:40
Ice and Snow
Remote sensing of snow with active and passive microwaves has a long tradition. Terrestrial instruments are used to investigate the interaction of snow with microwaves at selected locations, air- and space-borne sensors are used to image larger areas. While the terrestrial instruments are mobile and can be brought to selected test areas they are usually doing point measurements. Satellite...
Dr
Thomas Nagler
(ENVEO IT GmbH)
18/11/2015, 12:00
Ice and Snow
The Sentinel-1 satellites of the European Copernicus Programme, equipped with a C-band SAR sensor, are providing improved, long-term observation capabilities for important bio- and geo-physical parameters of the Earth system. We developed, implemented and tested a procedure for retrieving maps of snowmelt area. The retrieval algorithm uses a similar change detection method as applied for snow...
