Arrival and “Ivan the Terra Bus”
After a five-hour flight, Ann and Dan landed safely on the Pegasus Ice Runway and boarded “Ivan the Terra Bus” snow tractor for a one-hour drive over the Ross Ice Shelf to McMurdo Station. Weather upon their arrival was “Condition 3″ – winds less than 48 knots (about 55 mph), wind chills warmer than -75 degrees Fahrenheit and visibility greater than one-quarter mile.
“Condition 2″ weather occurs with wind speeds of 48-55 knots, wind chills of -75 to -100 degrees Fahrenheit or visibility less than one-quarter mile.
The worst weather occurs during “Condition 1,” when there is one of more of the following: wind speeds greater than 55 knots, wind chills colder than -100 degrees Fahrenheit, or visibility of less than 100 feet. During “Condition 1″ weather, only “mission critical” travel is allowed, with approval needed from staff managers to venture out-of-doors.
Related Photos for Download
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Ann Posegate Arrives in Antarctica |
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Dan Satterfield Arrives in Antarctica Download High Resolution Photo (Credit: Ann Posegate) |
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Ivan the Terra Bus Download High Resolution Photo (Credit: Ann Posegate) |
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The Welcome Wagon! Download High Resolution Photo (Credit: Ann Posegate) |
