KEYNOTE SPEECH

Keeynote Speech 1

POTENTIAL AND SHORTCOMING OF SMALL SATELLITE
FOR TOPOGRAPHIC MAPPING

Keynote Speaker: Rainer Sandau

DLR, German Aerospace Center, Rutherfordstr. 2, 12489 Berlin, Germany
Tel: +49 30 67055 530, Fax: +49 30 67055 532, e-mail: rainer.sandau@dlr.de

Commission I WG I/6

ABSTRACT:

High resolution mapping systems follow the trend to smaller ground sample distances (GSD) making use of the best technology available at the given time. From the 80 m GSD of ERTS in 1972, the GSD now approached 1 m and even less for civil applications. Mass and power consumption of spacecrafts and imaging instruments follow similar trends in conjunction with the immense improvements in very divers fields of technology. SAR systems are an alternative to passive optical systems; they also benefit from the technology improvements. But the most promising prospects for high resolution mapping with small satellites are connected with passive optical systems. The paper tries to give a MTF based metrics and analytical method to assess how far we can go with decreasing instrument size and decreasing the GSD at the same time and what features the spacecraft needs to provide. In this context the paper deals with such important parameters for topographic mapping with small satellites like spatial resolution, radiometry, pointing accuracy and stability. The parameters are derived from a MTF based metrics. It is shown that the imagers as well as the spacecraft bus need to follow certain rules to allow high resolution imaging aboard of small satellites.

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Keeynote Speech 2

ISSUES FOR EFFICIENT EARTH OBSERVATION FOR THE FUTURE

Keynote Speaker: John Trinder

First Vice President ISPRS
Emeritus Professor
School of Surveying and SIS
University of new South Wales
UNSW SYDNEY 2052 NSW
Australia

and

Ian Dowman
President ISPRS
Professor of Photogrammetry and Remote Sensing
University College London, United Kingdom
Tel: +44 7679 7226, e-mail: idowman@ge.ucl.ac.uk

Commission I WG I/6

ABSTRACT:  

Earth observation data from satellite platforms is now widely available and is used for many applications. These range from mapping at large scales for urban planning, where accurate geospatial information is required, to damage assessment after disasters where speed of delivery is critical. In all applications it is essential that the data can be delivered to the users in a suitable format and within an appropriate time scale. This paper examines the range of sensors and technology available to collect and distribute the data, and the organisational structures which should ensure that suitable data will be acquired in the required timescale and provided to the end user. The paper also presents some case studies showing the importance of Earth observation for the benefit of the Society.

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Keeynote Speech 3

MAPPING FROM SPACE

Keynote Speaker: Gottfried Konecny

Universität Hannover Nienburger Straße 1 D-30167 Hannover
Tel: + 49 511 762 - 2487, Fax: + 49 511 762 - 2483, e-mail: konecny@ipi.uni-hannover.de

Commission I WG I/6

ABSTRACT:  

Mapping from Space became possible due to the Launch of Sputnik 1957 and due to the Lunar Apollo Program in the 1960´s. Earth Observation became possible by the U.S. Landsat program and the Russian Interkosmos program in the 1970´s and 1980´s. Germany participated in the development of high resolution sensors by the MC Spacelab mission and MOMS. This technology is now applied by Ikonos and Quickbird.

Satellite Radar Interferometry (SRTM) supplied digital elevation models of the Land areas of the globe.

Small satellite development permits use of of the technology by other nations.

Satellite images are a powerful tool for updates and the verification of GIS databases.

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