Remote measurement of specific chemical and physical properties of surface materials, through imaging spectroscopy, is becoming a reality with the increasing access to calibrated hyperspectral scanners in Australia and the appearance of satellite-borne instruments. In recent years, hyperspectral research has been expanding through access to the available airborne data. They include the AVIRIS (NASA) program and extensive data collection and analysis in Australia using casi and HYMAP instruments. There is a growing desire by CSIRO remote sensing groups (participating Divisions) to expand their remote sensing research and applications development through access to high quality locally collected hyperspectral data and ancillary information. CSIRO is a lead Australian agency in the field of hyperspectral remote sensing and is also recognised as a significant participant in international R&D.
Following 20 years of successful and often dramatic advances in knowledge of the Earth from space platforms using remote sensing instruments, there is still a need to harness advanced technologies to improve the information flow. Among current activities, hyperspectral sensing is a clear way ahead. Hyperspectral opens up a whole data dimension which can be exploited for many applications.
The EOC hyperspectral task (refer Task Objectives) is broadly aimed at increasing access for the EOCrew to high quality hyperspectral data, standard methodologies, analysis tools and spectral data libraries. This will be achieved through development of dedicated field campaigns designed to acquire airborne high spectral resolution data and simultaneous field spectral and ancillary data measurements over key surface types. The outcome will be the provision of georeferenced hyperspectral imagery for these scenes in units of reflectance. In addition to single mission data, the task will develop specific temporal-change Îcase studiesâ over selected sites. These data will highlight the importance of the temporal dimension of hyperspectral data and biophysical properties.
Substantial benefits are also expected to accrue from this task through improved applications science within the participating Divisions, improved methodologies to support the growing Australian industry that makes use of hyperspectral technologies, opportunities for collaboration with non-CSIRO laboratories and companies and international recognition for excellent and practically-valuable hyperspectral R&D. Furthermore, the research that this task promotes will position CSIRO in general, and the EOC and participating Divisions in particular, to develop research funding with other agencies and commercial companies. Considerable opportunities exist for future interactions between this task and the proposed ARIES Development Program and other dedicated national and international hyperspectral projects.
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