The Great Summer Hotplate

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Seafm

Too far from the snow
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Jun 5, 2014
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21 degs and it's niiiiice .
Shut up:(
Screenshot_2019-02-12-20-48-28.png
 
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DiscoStuAU

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SEASON STARTER!!!!!!

BEST EVA!!!! OMG!!! LoL!!! WTF!!!!!!11111
Don't laugh. This is perfect fodder for the nutcases who are banging on about the "grand solar minimum" pushing us into a "new ice age".

I can already see the YouTube videos using this as a example of it, ignoring the record heat and fire season we have also had...
 
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Red_switch

Old n' Crusty
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Iron rich...
I wonder if anyone tracks the impact on phytoplankton blooms. @Red_switch
Probably. The Cawthron institute may monitor that in NZ waters, they certainly make satellite obs that would provide a proxy.

I'll potentially be involved in working out if it impacts our glaciers/permanent snow. Interesting timing in terms of sensitivity etc. Already a lot of dirty ice exposed, so maybe not much of an impact, but it's the hottest part of the year, so yeah even a small increase in forcing could be amplified, would have to do some maths on that one! Will need to wait and see if we actually get any signal in the satellite obs first.
 

POW Hungry

Old n' Crusty
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Probably. The Cawthron institute may monitor that in NZ waters, they certainly make satellite obs that would provide a proxy.

I'll potentially be involved in working out if it impacts our glaciers/permanent snow. Interesting timing in terms of sensitivity etc. Already a lot of dirty ice exposed, so maybe not much of an impact, but it's the hottest part of the year, so yeah even a small increase in forcing could be amplified, would have to do some maths on that one! Will need to wait and see if we actually get any signal in the satellite obs first.
Would be stoked if you could keep us updated on findings.
 

Red_switch

Old n' Crusty
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Would be stoked if you could keep us updated on findings.
It might be a slow burner, we have the tools to do the analysis, but short on hands to jump on something like this straight away - all the students in our group (myself included) are currently trying to get theses wrapped up! Political types aren't yet convinced that this kinda thing should be operationally funded... ha... ha...

From a glaciological p.o.v., the data isn't particularly urgent, and it's all archived anyway, so yeah likely to be something that gets revisited down the track.
 

POW Hungry

Old n' Crusty
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It might be a slow burner, we have the tools to do the analysis, but short on hands to jump on something like this straight away - all the students in our group (myself included) are currently trying to get theses wrapped up! Political types aren't yet convinced that this kinda thing should be operationally funded... ha... ha...

From a glaciological p.o.v., the data isn't particularly urgent, and it's all archived anyway, so yeah likely to be something that gets revisited down the track.
Figured as much. When and if findings come about, if you can. I thought immediately about photoplankton but never thought to consider glacial impact on NZ. Simply curious on how Australian anoms directly impact NZ given it's downstream. Fascinating.
 
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Red_switch

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Figured as much. When and if findings come about, if you can. I thought immediately about photoplankton but never thought to consider glacial impact on NZ. Simply curious on how Australian anoms directly impact NZ given it's downstream. Fascinating.
The world is a connected place!

One thing I've been interested in in my own research is the role of air masses originating over central Australia on NZ snow climatology in general. Problem is that given that is wnw of NZ, and almost all of our "wind" comes from the W half, it's pretty much impossible to detect any meaningful signal. The role of anomalous easterly air flow is much more readily apparent.

Dust events like this, however, will hopefully be a bit easier to unravel. Major Australian fire events too, and that will certainly get some proper attention in due course.

In Europe now they are able to, for example, determine the role that African dust plays in winter snow pack stability. Pretty interesting stuff.

In the states, dust originating from the shrinking great salt lake is having a negative effect on the snow pack in Utah. The same occurs for the Rockies downwind of the deserts.
 

Red_switch

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A little bit on the 2009 dust storm
https://www.sciencedaily.com/releases/2015/09/150917135213.htm

I bet this event will be monitored.
Worth a read. It’d be interesting to understand the scale of the dust storms then and now.
https://www.nature.com/articles/nature10310
We don't archive Himawari ourselves, (mostly use MODIS at this scale), but it'll be very rich data for this event. Could potentially provide an interesting case study for testing Lagrangian atmospheric transport models.
 

rocketboy

One of Us
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Sep 9, 2010
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The world is a connected place!

One thing I've been interested in in my own research is the role of air masses originating over central Australia on NZ snow climatology in general. Problem is that given that is wnw of NZ, and almost all of our "wind" comes from the W half, it's pretty much impossible to detect any meaningful signal. The role of anomalous easterly air flow is much more readily apparent.

Dust events like this, however, will hopefully be a bit easier to unravel. Major Australian fire events too, and that will certainly get some proper attention in due course.

In Europe now they are able to, for example, determine the role that African dust plays in winter snow pack stability. Pretty interesting stuff.

In the states, dust originating from the shrinking great salt lake is having a negative effect on the snow pack in Utah. The same occurs for the Rockies downwind of the deserts.

What about dust from Australia and western Pacific cyclones. Is there a similar link as there is Africa and Atlantic hurricanes?
 

Red_switch

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What about dust from Australia and western Pacific cyclones. Is there a similar link as there is Africa and Atlantic hurricanes?
Dunno. Don't think anyone's really looked at it too much. The more I think about it, the more I wonder whether it could lend itself to interesting chemical/isotopic analysis, if you find the right sampling spots.
 

rocketboy

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Dunno. Don't think anyone's really looked at it too much. The more I think about it, the more I wonder whether it could lend itself to interesting chemical/isotopic analysis, if you find the right sampling spots.

The difference is the - Sahara dust feeds directly into the equatorial Atlantic, whereas the Aussie dust streams into the south Pacific and is far less regular in occurrence. The teleconnections are truly incredible. That recent science paper on global rainfall paterns was quite interesting.
 
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Red_switch

Old n' Crusty
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The difference is the - Sahara dust feeds directly into the equatorial Atlantic, whereas the Aussie dust streams into the south Pacific and is far less regular in occurrence. The teleconnections are truly incredible. That recent science paper on global rainfall paterns was quite interesting.
Yeah, totally. That's why I wonder whether an isotopic approach might be a neat way to try and pin down sources and sinks, that's not so much my area though, but if someone could tell me where (if) it's accumulating, for example, in NZ, then it'd be fun to run the back trajectories and see how well we can predict the source - though that would be limited a bit by residence and travel time.
 
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Jacko4650

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Not fair SMSkier. It was 27.3 degrees last night here in Maryborough Qld at 11.30pm and got down to as low as 24.4 at 4am so we could all turn air-conditioners off for a few hours! Back up over 30 by 9am. Sick of it.
 
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DiscoStuAU

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Not fair SMSkier. It was 27.3 degrees last night here in Maryborough Qld at 11.30pm and got down to as low as 24.4 at 4am so we could all turn air-conditioners off for a few hours! Back up over 30 by 9am. Sick of it.
Spare a thought for my in-laws, they're in Maryborough as well after moving from the VIC high country. They're living out of an un-airconditioned caravan while they build. Poor buggers almost died this summer
 
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