Rainfall variability trial 2022

 

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 set up a very simple trial in 2021 to track how much variation occurs.
FULL REPORT FROM HART'S 2021 TRIAL RESULTS BOOK

We're presenting that data in some really easy to interpret, colour coded maps (thanks Declan!).

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

MONTHLY TOTALS   |   GROWING SEASON (GSR; Apr - Oct)
 

MONTHLY TOTALS

HART Rainfall Variation Map; JANUARY 2022
JANUARY 2022

HART Rainfall Variation Map; FEBRUARY 2022
FEBRUARY 2022

HART Rainfall Variation Map; MARCH 2022
MARCH 2022

HART Rainfall Variation Map; APRIL 2022
APRIL 2022

 

 

GROWING SEASON RAINFALL (GSR - April - October)

 


 

DIARY DATES


2024

Getting The Crop In seminar
Wednesday, March 13, 2024
8am - 12:30pm  |  Clare SA

Winter Walk
Tuesday, July 16, 2024
9am  |  Hart, SA

Hart Field Day
Tuesday, September 17, 2024
Hart, SA

Spring Twilight Walk
Tuesday, October 15, 2024
5pm  |  Hart, SA

 

 

 

 MAJOR SPONSOR:


Rocky River Ag combined logos


Sponsors