From 2nd to 9th Jan so far and SILSO has New ‘Spotless days’ page with several graphics to ponder. OT – the SOI is nudging positive too.
From 2nd to 9th Jan so far and SILSO has New ‘Spotless days’ page with several graphics to ponder. OT – the SOI is nudging positive too.
Warwick, re SOI. The 30day average actually went positive on 27 May, many would say that was the end of the El Nino. The 90d SOI went positive on 20 Jul which definitely was the end. On 14 Sept the 30d went above 10 which may have indicated a La Nina but then it started to go down. On 24 th Dec the 90 d became negative again. As you indicate the 90d has turned and is again +ve but too early to say if there will be a La Nina. However with lots of rain and floods in Nth Qld there is a chance that in SEQ the rain will again be above normal (2016 had considerably less than normal rain)
You should look at the sunspot count that compares apples with apples www.landscheidt.info/?q=node/50