Neil Ross writes: Rather belated greetings from Subglacial Lake Ellsworth (SLE). I had hoped to post something a bit sooner in the season (we have already been here three weeks) but there has been far too much work to do and good weather to do it in. Sorry! Here is the first installment from late last month, more to come... 26-31 December: Last season at SLE we undertook a series of geophysical measurements (seismics and radar) to map the size and depth of the lake, which is located beneath three kilometers of West Antarctic Ice Sheet. This year, the primary goals were the resurvey of the location of 60 metal poles left in the ice surface last season, using a GPS to measure their elevation, how far they had travelled, and in whic...