Clow measured twice, once in 2011 and again in 2014, the temperature in a 3.4 -
kilometer -
deep (2 - mile -
deep)
borehole from which the West Antarctic Sheet Divide ice core had been drilled during an eight - year project that ended in 2011.
Indian science minister Ashwani Kumar announced last week that the National Geophysical Research Institute (NGRI) in Hyderabad will launch a $ 75 - million, 30 - month - long project to drill an 8 -
kilometer -
deep borehole in Koyna, a region in western India that experiences frequent small - to moderately - sized earthquakes.