Rainfall variability trial

 

Hart regional intern, Declan Anderson, measuing rainfall at Hart   Hart rainfall gauge   

"How much rain did you get...?"

It's a common question, but the answer is sometimes perplexing.

Your neighbour got 16 mm, yet you only got 10 mm.

Why is that - were they were exaggerating? Is your rain gauge broken?

We regularly hear growers expressing uncertainty around the varying amount of rainfall recorded across short to medium distances and we've also noticed variation across our own site at Hart.

So we've set up a very simple trial to track how much variation occurs.

We're presenting that data in some really easy to interpret, colour coded maps (thanks Declan!) and it's already making for very interesting viewing.

You can click on any image on this page to enlarge it.

Setting the scene:
► The Hart site is 40 ha
► Eleven manual rain gauges have been placed across the site to get a representative sampling area (indicated by the red dots on the image below). These gauges have been calibrated to one another so readings are as accurate and consistent as possible
► Our trial also includes the digital recordings of the Mid North Mesonet (indicated by the green dot on the image below)
Hart Rainfall Variability Trial 2021 - rainfall gauge locations
► Rainfall is recorded as a rainfall 'event', not necessarily a per day recording
► Rainfall is measured as soon as possible after an event to limit atmospheric losses
► Recorded measurements are added into a GIS program, where they are interpolated into the maps displayed below (keep scrolling)
► Rainfall recorded earlier in the season (January to mid-March) do not include all current rainfall gauge locations

INDIVIDUAL RAINFALL EVENTS   |   MONTHLY TOTALS
 

RAINFALL EVENTS

HART Rainfall Variation Map; August 29, 2021
August 29, 2021 

HART Rainfall Variation Map; August 25-27, 2021
August 25-27, 2021

HART Rainfall Variation Map; August 20-24, 2021
August 20-24, 2021

HART Rainfall Variation Map; August 12, 2021
August 12, 2021

HART Rainfall Variation Map; August 3-7, 2021
August 3-7, 2021

HART Rainfall Variation Map; August 1, 2021
August 1, 2021

HART Rainfall Variation Map; July 28, 2021
July 28, 2021

HART Rainfall Variation Map; July 22-26, 2021
July 22-26, 2021

HART Rainfall Variation Map; July 21 2021
July 16-21, 2021

HART Rainfall Variation Map; July 10-14 2021
July 10-14, 2021

HART Rainfall Variation Map; July 5 2021
July 5, 2021

HART Rainfall Variation Map; June 28 2021
June 23-28, 2021

HART Rainfall Variation Map; June 16-20 2021
June 16-20, 2021

HART Rainfall Variation Map; June 8-10 2021
June 8-10, 2021

HART Rainfall Variation Map; June 3-4 2021
June 3-4, 2021

HART Rainfall Variation Map; May 27, 2021
May 27, 2021

HART Rainfall Variation Map; May 26, 2021
May 26, 2021

HART Rainfall Variation Map; May 25, 2021
May 25, 2021

HART Rainfall Variation Map; May 15, 2021
May 15, 2021

HART Rainfall Variation Map; May 14, 2021
May 14, 2021

HART Rainfall Variation Map; May 9-11, 2021
May 9-11, 2021

HART Rainfall Variation Map; April 21, 2021
April 21, 2021

HART Rainfall Variation Map; April 14, 2021
April 14, 2021

HART Rainfall Variation Map; March 27, 2021
March 27, 2021

HART Rainfall Variation Map; March 13, 2021
March 13, 2021

HART Rainfall Variation Map; March 11, 2021
March 11, 2021

HART Rainfall Variation Map; February 22, 2021
February 22, 2021

HART Rainfall Variation Map; February 8, 2021
February 8, 2021

HART Rainfall Variation Map; January 26, 2021
January 26, 2021

 

MONTHLY TOTALS

HART Rainfall Variation Map; APRIL 2021
APRIL 2021

HART Rainfall Variation Map; MAY 2021
MAY 2021

HART Rainfall Variation Map; JUNE 2021
JUNE 2021

HART Rainfall Variation Map; JULY 2021
JULY 2021


 

DIARY DATES



2021

Hart Field Day
Tuesday September 21, 2021
Hart, SA

Hart AGM
Tuesday, October 12, 2021
8am via Zoom

Spring Twilight Walk
Tuesday October 19, 2021
5pm  |  Hart, SA

2022

Getting The Crop In seminar
Wednesday March 9, 2022
8am, Clare, SA

Winter Walk
Tuesday July 19, 2022
9am  |  Hart, SA

Hart Field Day
Tuesday September 20, 2022
Hart, SA

Spring Twilight Walk
Tuesday October 18, 2022
5pm  |  Hart, SA

 

 

 MAJOR SPONSOR:


Rocky River Ag combined logos


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