Make that nine...

Global monthly temperatures since 1970 -- instrumental estimates

I’ve now added the Japan Meteorological Agency’s temperature series to the global temperature plots on the graph pages (you may need a browser refresh to see the latest versions)

. . . → Read More: Make that nine…

We're off

Spencers Creek snow depth, from Snowy Hydro

But don’t get too excited, the depth will be zero tomorrow…

. . . → Read More: We’re off

Madden-Julian and snow #2

Madden-Julian oscillation and snow -- 2014 season

Also see: Madden-Julian and snow #1

It’s interesting to review what happened with the Madden-Julian oscillation in the 2014

. . . → Read More: Madden-Julian and snow #2

The structure of global climate models

Strusture of the NASA GISS global climate model

Strusture of the NASA GISS global climate model

Don’t believe in global climate modelling? Maybe you should actually read something about it before cementing a conclusion. A new paper¹ by Kaitlin Alexander (now at UNSW) and Steve Easterbrook (Toronto) is moderately approachable and gives some interesting insights

. . . → Read More: The structure of global climate models

Madden-Julian and snow

MJO_recent

Also see: Madden-Julian and snow #2

The Madden-Julian oscillation (MJO) is a fairly regular eastward-propagating pulse of equatorial cloud and rainfall affecting our region, named after the two US meteorologists who identified it in the 1970s. It usually repeats about every 30 to 60 days. While the effect is mostly tropical, it does correlate with our alpine snow in some phases, in ways that may be useful for long-range forecasting.

. . . → Read More: Madden-Julian and snow

An April snow depth?

2015_4_25

Update 2: The models have settled now. Still looking cold, but not much snow.

There’ll be some snow this weekend, probably 20+ cm up high, but will it survive until Snowy Hydro’s usual weekly measure on Thursday 30 April?

. . . → Read More: An April snow depth?

Australian snow season start

Spencers Creek season start

Updated:  Rationalise the sub-intervals used for plotting

While we’re waiting for some real snow, I’ve updated the season start chart

. . . → Read More: Australian snow season start

Cloud seeding and snow

Spencers Creek peak snow depth moving average and trend

It’s the stuff of charlatan rainmakers of old — when the weird dance doesn’t cut it, try firing some fancy pyrotechnics skywards and hope for a lucky cloudburst. Those pyrotechnics are not so very far from what Snowy Hydro has been up to for over a decade now, hoping to increase winter snowfall over our alps. But to what effect?

. . . → Read More: Cloud seeding and snow

Season 2015 snow depth prediction

Spencers Creek peak snow depth pre-season prediction for 2015

Updated…

Time to give this a try:   the Spencers Creek season peak snow depth for season 2015 will be  141 ± 44 cm. . . . → Read More: Season 2015 snow depth prediction

Lowest and earliest Arctic sea ice maximum

PIOMAs northern sea ice volume

The northern sea ice has now reached its seasonal maximum extent. This year’s is the lowest and earliest maximum of the satellite era (since 1979).

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