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  • This application allows the user to see a `real-time' representation of the Earth from a satellite that is currently orbiting our planet. The satellite database that provides the positioning information is updated regularly, but may not reflect the current position of satellites that manoeuvre frequently after reaching orbit.

  • This application provides quick-look images and download options of the MOD43 Nadir BRDF-Adjusted Reflectance (NBAR) Products generated by ACRES. These products are a composite, generated for MODIS spectral bands 1-7 at the mean solar zenith angle over a 16 day period. In addition to the NBAR composite products, the BRDF parameters for each band, the ancillary, and band quality information are also provided. Each NBAR composite product is in GeoTIFF format at 500 metres resolution. All of the files are compressed using gzip/tar as "*.tar.gz". For Windows gzip/tar support please try WinZip.

  • The earthquake mapping tool allows you to: * view recent earthquakes which occurred over the past 30 days * search and explore all Australian earthquakes * search and explore earthquakes worldwide * view seismograms of earthquakes over the past 90 days * advise Geoscience Australia when you have felt a recent earthquake.

  • Compute Sun and Moon Azimuth & Elevation To use this facility you need to know the latitude and longitude of the location for which you want to calculate the azimuth and vertical angle. There are several ways you can determine this:

  • FTP directory /geodesy-outgoing/gnss/logs/ at ftp.ga.gov.au

  • Geodetic Calculations - Vincenty's Formulae, Inverse Method Given latitude and longitude of two points, calculate the ellipsoidal distance and forward and reverse azimuths between the points.

  • Redfearne's Formulae Excel spreadsheet

  • International Quiet Days (IQD's) are the days where the geomagnetic variations are a minimum in each month. International Disturbed Days (IDD's) are 5 days in each month where the geomagnetic variations are maximum. The classification of days is relative only to the month of calculation. The average disturbance level in one month may differ from another.

  • ANUGA is a software implementation of a hydrodynamic model which is specifically designed to model wetting and drying processes. ANUGA is a joint development project between Geoscience Australia (GA) and the Australian National University (ANU).

  • Digital elevation data which describes Australia's landforms and seabed is crucial for addressing issues relating to the impacts of climate change, disaster management, water security, environmental management, urban planning and infrastructure design. The National Elevation Data Framework (NEDF) vision is to ensure that decision makers, investors and the community have access to the best available elevation data to address the needs of today and the decades ahead.