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).
Power and Water Authority
Report ; 39/1992
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Technical Report WRD92039 Viewed at 15:07:17 on 29/07/2010 Page 54 of 192. The maximum variation of atmospheric pressure during a day without storms is likely to be less than 60mm equivalent water pressure, over more than 5 hours (i.e. 12 mm/hr). It is advisable to have graphic records of atmospheric pressure over all SEasons to which logged data can be compared, and to manually record unusual events (e.g. storms) where possible. There is a possibility that the atmospheric pressure change during a given period over large regions may be quite similar except for those times when local disturbances occur. The of Meteorology has data from 68 stations across the Northern Terrii:ory, so this possibility could be investigated, as it. might mean that atmospheric pressure would only have to be l()~jged at a small number of stations (or that Bureau of Meteorology data could be used) and applied to remote sites. In addition to this, generally in the same the magnitude of diurnal effects is order or exceeded by the errors associated with the data that is currently obtainable. The meaning of such corrections should therefore be considered in the Light of this. The processing requi red in order that these effects be incorporated is also substantial.
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