Scientists come to Antarctica from all over the world. Many are based at research stations like the Amundsen-Scott facility and collect data from great distances.
Watch this video where Dustin Schroeder, a geophysicist from Stanford University, describes his work capturing data on rising sea levels. He uses radar technology to study the subglacial and englacial (inside a glacier) conditions of Antarctica's rapidly changing ice sheets.
Source: Dustin Schroeder, https://www.ted.com/talks/dustin_schroeder_how_we_look_kilometers_below_the_antarctic_ice_sheet
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