Package org.geotoolkit.nature

Algorithms related to the observations of natural phenomenons.

See:
Description

Class Summary

Calendar	Approximations de quelques calculs astronomiques relatifs aux calendriers terrestres.
SeaWater	Sea water properties as a function of salinity, temperature and pressure.
SunRelativePosition	Computes Sun apparent position relative to an observer on Earth.

Package org.geotoolkit.nature Description

Algorithms related to the observations of natural phenomenons. Most algorithms in this package are derived from empirical measurements; their results are approximative. Algorithms include:

• Sea water properties (density, sound velocity, fusion temperature, etc.) computed from salinity, temperature and pression using algorithms published by UNESCO.
• Values relative to earth calendar, like tropical year length.
• etc.

References

Alain Poisson, M.H. Gashoumi and Selim Morcos.
Salinity and density of seawater: table for high salinities (42 to 50).
Unesco technical papers in marine science #62 (1991).

Unesco
International oceanographic tables, volume 4.
Unesco technical papers in marine science #40 (1987).

Franck J. Millero.
Solubility of oxygen in sea water in Progress on oceanographic tables and standards 1983-1986.
Unesco technical papers in marine science #50 (1986) pp.13-14.

Unesco
The international system of units (SI) in oceanography.
Unesco technical papers in marine science #45 (1985).

N.P. Fofonoff and R.C. Millard Jr.
Algorithms for computation of fundamental properties of seawater.
Unesco technical papers in marine science #44 (1983).

Tropical year length is computed using formula by Laskar (1986). Synodic month length is computed using formula by Chapront-Touze and Chapront (1988). Those formulas was taken from the following adress:

• http://webexhibits.org/calendars/year-astronomy.html
• http://www.treasure-troves.com/astro/TropicalYear.html

Since:

2.0

Version:

3.00

Author:

Martin Desruisseaux (MPO, IRD)

Module:

analytics/geotk-nature (download)