Territory Stories

Electronic Data Collection and Analysis System



Electronic Data Collection and Analysis System


Yin Foo, Des; Foley, Margaret


E-Publications; PublicationNT; E-Books; Report ; 39/1992




Made available via the Publications (Legal Deposit) Act 2004 (NT).





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Power and Water Authority

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Report ; 39/1992

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Technical Report WRD92039 Viewed at 15:07:17 on 29/07/2010 Page 174 of 192. "H-bcorr.pro", [enter]. {C} is now the head data .,hich has been barometrically corrected. View {C} at an expanded scale, and compare it to {U}, the original uncorrected data set See the example in 4.4 below. D4.2 converting head to drawdown (i) Use the data set {e} as above; (ii) Select the same time as used above as TO. The drawdown is found as in (1) above. Note the value of {C}9.t time TO ( .... ) and subtract it as in 4.1 from {C}. Multiply it by -1 ("*", -1, [enter]). {C} is now dravldown (compared to the water ievei at TO). (iii)View {C} at an expanded scale, and compare it to the original data set. Note that the effect of barometric correction is large in this case because of the relatively small change in water level (0.14m) over a period of 5 days. D4.3 Recalibrating logged drawdown by check readings. (i) Correct the logged head for barometric effects and convert it to drawdown (using the same reference time TOl, as outlined above. Call the set {C}. copy it as set {R}. (The recalibration will be done on {Rl, and it can be compared to {C}.) , (ii) Read the check readings in as {T} ; (iii)start the recalibration process by entering "L". Set {R} is to be calibrated by set {T}. Notice the anarnolous point - which corresponds to the {T} value at :00:00 on .. /06/91. Abort the process ( [ESC] )

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