Topic Options
#1438988 - 26/10/2017 09:40 Accuracy of Rain Records.
ggas Offline
Cloud Gazer

Registered: 25/10/2017
Posts: 3
While looking at the Gympie Daily Summaries for the month of October 2017 I notice that for Tuesday the 17th of the month it shows a dash (-) in the 'rain to 9am' column.

I take this to mean that no rainfall was recorded for that day due to mechanical error, is this correct?

As we had over 100mm in that period will this record be updated from another source?

If not does this mean that the record will forever show the incorrect total for the day, month and year?

What is the usual procedure when this happens?

How accurate are figures for previous periods?

Top
#1443766 - 04/12/2017 15:32 Re: Accuracy of Rain Records. [Re: ggas]
ggas Offline
Cloud Gazer

Registered: 25/10/2017
Posts: 3
I checked this figure again today 4 Dec 17 and it still shows a dash. It shows the Oct 17 total at 259 while the wettest Oct was in 1949 with a total in Oct for that year at 321. If the missing 100mm is added to this year's Oct total it would be a new Oct record by 38mm so it's not just a minor inconsistency especially when you consider that the Oct average between 1887 and 2016 is only 65.8mm. Anyone any idea how to get this fixed?

Top
#1443861 - 05/12/2017 09:14 Re: Accuracy of Rain Records. [Re: ggas]
Flowin Offline
Weather Freak

Registered: 15/10/2017
Posts: 153
Loc: Pinjarra Hills, Qld
That would probably be a missed manual reading, or missed data transfer to head office rather than a mechanical fault of the gauge. Bom Webpage says "Gaps occur in the table where a valid observation is not available. This is frequently associated with the observer being unavailable (where observations are undertaken manually), a failure in the observing equipment, or when an event has produced suspect data."
Interesting that the same site had missed records also 18th March and 18th of May. You could perhaps use BoM feedback page:

http://www.bom.gov.au/other/feedback/
_________________________
Models are for estimating and gauges are for knowledge.

Top
#1444223 - 08/12/2017 11:59 Re: Accuracy of Rain Records. [Re: ggas]
ggas Offline
Cloud Gazer

Registered: 25/10/2017
Posts: 3
Thanks Flowin I'll do that. I checked the other two days that were missed and fortunately we did not record any rain on those days and I guess a missed day here and there doesn't matter a whole lot in the scheme of things but on the day I'm winging about we recorded 110mm, thats a big miss.
Thanks.

Top


Who's Online
8 registered (Stormy3, Perfect Storm, aussiestormfreak, TindraTim, Weather_Viewer, betsuin, bd bucketingdown, 1 invisible), 264 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Today's Birthdays
Jade, STORM CAZ, StormChasinJason, ^Lem^
Forum Stats
29444 Members
32 Forums
23760 Topics
1472326 Posts

Max Online: 2925 @ 02/02/2011 22:23
Satellite Image