Martin Sharp is a glaciologist with particular interests in interactions between glaciers and the climate system, and in hydrochemical processes in glacial environments. At present his research program is structured around field studies conducted at John Evans Glacier, Ellesmere Island, and combined field and remote sensing studies of the ice caps of the Queen Elizabeth Islands, Arctic Canada. Martin's group runs the Glacier Hydrochemistry Lab (walk in freezer and analytical facility) and is extremely well equipped for glaciological fieldwork (radio echo sounder, ice coring equipment, differential GPS and total station survey equipment, automatic weather stations and stream monitoring stations, digital borehole inclinometer). Recently, it created an unparalleled archive of imagery of the ice caps of the Canadian high Arctic (>10,000 aerial photographs, Landsat 7 ETM+ imagery, >200 Aster images, ERS1/2 and Radarsat SAR imagery (including interferometric coverage) and AVHrr and scatterometer imagery.