Logbook entry: Helo Cave (2000-12-28) at Helo Cave

About happenings on Dec. 28, 2000, Nelia Dunbar wrote:

14:52

main entrance: velocity 0.3 m/s T -7 deg C RH 91.4% CO2 0.07 vol %

pictures: 28_DEC_01.jpg 28_DEC_02.jpg

small side slot: T -4.2 deg C RH 93.4% velocity 0.0 - 0.4 m/s avg 0.2 m/s co2 0.08 vol % pciture: 28_dec_03.jpg

large top entrance: almost entirely closed- iced over, but broken through with ice axe geometry (see entrance description on related entrance object) Co2 0.07 vol % velocity 0.4 m/s T -2 deg C RH 102.2 deg C

[transcribed from Nelia's notebook by aaron]

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