Quantarctica: A free GIS package for research, education, and operation in Antarctica.

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Presentation transcript:

Quantarctica: A free GIS package for research, education, and operation in Antarctica

Quantarctica Works with free software Quantum GIS. Includes a range of geographical data. Requires no internet access for the daily use, i.e. suitable for operation in Antarctica. Is able to plot GPS-provided current positions together with GIS layers. Nice for research/operation in Antarctica as well as education.

What’s really unique? Uniform map projection for all datasets Optimized file size for satellite images Sophisticated cartography Capabilities to add your own data layers on Quantarctica and make your own GIS package.

A ”ready-to-go” package This morning, to make a sandwich, you started with bread, not flour. Why do you start with flour to do your job?

Developer team at NPI Anders Skoglund Kenny Matsuoka Angela von Deschwanden - Previous versions were tested more than 2 years. - Now Quantarctica version 1.0 is publicly released and will keep growing as a community effort.

Quantum GIS Open source (GNU) First release in Regular updates. Numerous plugins. Active community support.

Screenshot: detailed basemap You have simple continet-wide and informaiton-rich close-up views.

Import of high-res satellite images High-resolution satellite imagenary can be imported with few clicks.

Attribute table A right click gives an easy access to attributes of each facility (layer)

Print composer High-quality figures for publications can be easily made

Data currently available on QA (1) Glaciology Ice flow velocity Bed elevation Ice thickness Grounding line Subglacial lakes various more

Error layers Ice thicknessIce-flow speed More transparent cells have more confident estimates

Data currently available on QA (2) Glaciology Ice flow velocity Bed elevation Ice thickness Grounding line Subglacial lakes Surface elevation Geothermal flux Surface mass balance Surface temperature various more

Data currently available on QA (3) Geophysics Magnetic anomalies Gravity anomalies Geoid heights

Data currently available on QA (4) Sea Ice Monthly sea ice extent

Researchers, please contribute… Continent-wide datasets derived with observations, remote sensing and modeling for next version of Quantarctica. Your project data/results as a Quantarctica’s add-on layer. We host it at ”quantarctica.org” web site.

Plugins: an example Profile plugin extracts digital values (e.g. elevation) from raster data

Metadata and references Each layer has a description including references Abstract: The surface temperature estimates in °C are derived from AVHRR infrared data. Annual mean temperatures from 1982–2004 were averaged to provide the surface air temperature field. Originators: Publisher: Le Brocq, A. M., Payne, A. J., and Vieli, A.: An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1), Earth Syst. Sci. Data, 2, , doi: /essd , Publication date: 2010 Data location: \Quantarctica\Scientific\Glaciology\ALBMAP\ALBMAP_Te mp.tif References: Comiso, J. C.: Variability and trends in Antarctic surface temperatures from in situ and satellite infrared measurements, J. Climate, 13(10), 1674–1696, 2000.

Supporting community effort It’s a community effort. Layer contributions are expected. –Data layers particularly for oceanography, geology, meteology, biology, …. –Model-output layers for any disciplines. ML annoucning updates (please register yourself at the web site below). Download and contribute!

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