In order to be consistent with observations of basal hydrology in Marie Byrd Land
, the upper bound on the plume-derived geothermal heat flux is 150 milliwatts per square meter.
In January 2010 a team of scientists had set up two crossing lines of seismographs across Marie Byrd Land
in West Antarctica.
Those areas depicted in blue lie below sea level, including the Bentley Subglacial Trench, a vast chasm in Marie Byrd Land
that at its lowest point is more than 2,500 metres below sea level.
He has successfully negotiated some of the most difficult international routes including the north side of Everest, the north face of Kangchenjunga in Eastern Nepal (the world's third highest mountain), Mount Kenya, Mount Aconcaqua in Argentina as well as the Ross Sea and Marie Byrd Land