A RCTIC CIRCULA NO. I Notes on a trip in l6-foot ... - The Arctic Circle

VOL. XV No. 3 THE A<strong>RCTIC</strong> CIRCUI,AR 46
teft Edmonton on July 19 by R"C.A.F. aircraft for Resolute. The
following dayr &n Otter aircraft of Bradley Air Services equipped
wlth low-pressure tires , pitoted by R" Dubllcquy, flew tbe party to
$/inte r Harbour .
Cn July 21 the thermistor cable was successfully ilrlstalled
to the plarured depth of.2,000 feet, the depth to whlch the hole had
been kept open wlth caslng. The cable contalns 25 thermistors,
each on a separate circuit and spaced at regular depth lntervals.
After lnetallation, thermistor resistances were measured from the
eurface with a Vrrheatstone bridge and reslstancee were converted to
temperatures from calibration tables previously prepared for each
the rmtstor,
Thes e prellmlnary measurements , accurate to about 0.0loc ,
lndlcate that gub-freezlng temperatures presenriy extend to a depth of
about 1r500 feet in the recently completed well, Ae the temperature
of the clrculating drtlllng fluid wae substantially greater than natural
ground temperatures in the upper 21000 feet throughout most of the
elght months of drlllhg, the temperatures at each depth are not
expected to approa.:h thelr pre-drilling values for s everal years.
The cable wtll be left perr:ranently in place and read periodleally.
The party returned to ResoLute by Otter aircraft on July 25.
The operation had been greatly speeded by extra,ordinary good weather.
From Resotute the party took ihe Nordair scheduled fltght to Montreal.
The temperature cabte and all the electrlcal measuring
lnstruments were supplied by the Geophysics Laboratoryr tt.S "
Geological Survey, Menlo Park, CaLiforn-l,a, rvhich also iooked after
the transportailon of Mess rs. Lachenbruch and Greene from Palo
Al,to to Edmonton and Montreal respecti.rely. A contr{.bution for caelng
and plugging e::penses and northern traneportatton tri,as given by the
Northern Coordination and Research Centre of the Department of
Northern Affa!.rs and National Resources o
']Faddl g an d g e jr,c ro s s, tllg B a r en s
.
-p.o_I!a T I'
At the Annual Dlnner on 1t December 196zo Mr' Er!'c w'
Morse described his experiences on -1, canoe trin fronn Artiliery Lake
to Baker Lake, The party of four were flown from Yellowlqrlfe to
the head of Arttllery Lake on July 14 wlth their two 16-foot alumlnum
canoes and equipment by au Otter alrcraft on floats " The members
were: Mr" and Mrs. ErLc $.I" Morse, AoR"C" ',uneg, a:rd'W' Nlchotle.