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# OpenScience / Software / Earth Sciences

## Debrief

Debrief is a mature Open Source Java application for viewing ship and submarine vessel tracks in 2 and 3 dimensions. Find Debrief at: http://www.debrief.info/index.shtml

Posted in Oceanography
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## Vis5D

Vis5D is a system for interactive visualization of large 5-D gridded data sets such as those produced by numerical weather models. Find Vis5D at: http://www.ssec.wisc.edu/~billh/vis5d.html

Posted in Meteorology
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## FreeGIS

Posted in Earth Sciences, Geography
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## GRASS GIS

GRASS GIS (Geographic Resources Analysis Support System) is an open source, free Geographical Information System (GIS) with raster, topological vector, image processing, and visualization functionality. Find GRASS GIS at: http://grass.itc.it/

Posted in Earth Sciences, Geography
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## XTide

Free tide software for Unix/X11 with ports to other platforms. Tide graphs, tide clocks, plain old text listings and more. Works great under Linux. Find XTide at: http://www.flaterco.com/xtide/

Posted in Oceanography
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## NETPATH

An interactive program for calculating NET geochemical reactions and radiocarbon dating along a flow PATH Find NETPATH at: http://water.usgs.gov/software/netpath.html

Posted in Hydrology
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## WATEQ4F

A program for calculating speciation of major, trace, and redox elements in natural waters Find WATEQ4F at: http://water.usgs.gov/software/wateq4f.html

Posted in Hydrology
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## PHRQPITZ

Posted in Hydrology
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## PHREEQC

A program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations Find PHREEQC at: http://wwwbrr.cr.usgs.gov/projects/GWC_coupled/phreeqc/

Posted in Hydrology
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