Severinghaus, J. P., A. Grachev, and M. Battle. 2001. Thermal fractionation of air in polar firn by seasonal temperature gradients. Geochemistry, Geophysics, Geosystems (G³) 2(7), 1048, doi:10.1029/2000GC000146.

Severinghaus, J. P., A. Grachev, and M. Battle. 2001. Firn air isotope and temperature measurements from Siple Dome and South Pole. Boulder, Colorado USA: National Snow and Ice Data Center. Digital Media. Accessed 20 January 2009.

Access Data: available via FTP

Sample Points: 2

Measurement Depth: 15-50 m

Siple Dome:
    Collected: austral summers 1996 and 1998
    Location:  81.667° S, 148.767° W

South Pole:
    Collected: austral summer and winter 1998
    Location:  89.997° S, 102.0° W

Measurements:

• isotopes (¹⁵N/¹⁴N, ⁴⁰Ar/³⁶Ar, ⁴⁰Ar/³⁸Ar, ¹⁸O/¹⁶O of O₂, O₂/N₂, ⁸⁴Kr/³⁶Ar, ¹³²Xe/³⁶Ar)