Water level, temperature, and chemistry in a deep well on the summit of Kilauea Volcano, Hawaii
High-resolution (plus or minus (±) 0.1°C) temperature measurements were accomplished with a platinum resistance temperature (PRT) probe. The PRT probe, suspended from an armored logging cable, was lowered into the well over a sheave with a portable hand-cranked reel. Attached to the sheave were both mechanical and …