ISCAT                                  Antarctica Map

    Investigation of Sulfur Chemistry in the Antarctic Troposphere (ISCAT) was designed as a study of the transport of dimethyl sulfide emitted from the Southern Ocean to the South Pole.  The oxidation of DMS produces several compounds but probably the most important is SO2.  The sulfur in ice cores provides important information about past climate but the interpretation of the ice core sulfur data depends on whether it got there in the gas or aerosol phase.  We observed some sulfur dioxide and other sulfur containing species but the data were limited because of instrument problems.  Much better data were obtained in ISCAT II.

Welcome sign on top of the Dome entrance.



Entrance to the Dome of the South Pole Station is always
open. Other buildings such as cafeteria, radio station, gift shop, 
living quarters, are located under the Dome.



A view of the South Pole Station Dome and the cargo area.

Ventilation hole in the top of the dome to equalize air pressure.


Galley inside the dome.



Jeff's sleeping quarters with a little snow infiltration.


South Pole Marker for 1998 .This marker is changed and 
moved each year to compensate for the shifting ice.

Jeff exposing himself to the elements on a dare
at the South Pole Marker.

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Hilo around the sun caused by ice crystals in the air.

Travel log by Graduate Student Jeff Crawford