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07-02-2020, 21:56   #61
Chris_5339762
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Both!

Good if you want to regain even the tinest bit of the overall melt over the previous years.
Bad if you're Russian and are begging for the artic to melt so you can open shipping lanes.
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08-02-2020, 11:38   #62
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Arctic sea ice extent is now 13,989,242 km2 (just shy of 14 million) and this completes a third day in a row of well above average daily gains for this time of year.

Arctic sea ice extent remains in 14th lowest position overall. Nearby is 2004 which was just 87k ahead of 2020 - so it's quite possible that 2020 will drop into 15th lowest position should the recent above average gains continue a pace.
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03-03-2020, 12:33   #63
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Been keeping an eye on this for a few days now but looks increasinly likely that we'll see a very dramatic drop in both global and northern hemispheric temp anomalies over the next 5 days.. and by as as much as 1.0c or even more in the latter.


(data sourced from Climate Reanalyzer)

Both global and N.H have been running very high since the start (and even before) the year, but a drop on this scale is nonetheless very notable, and possibly unprecedented (I'll check later when I have more time and post results on here). Arctic temperatures are also expected to drop once again into negative territory after being in a positive period for a number of weeks now.
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03-03-2020, 13:56   #64
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Interesting slide in temperatures, the DMI temperature graph is showing temperatures across the high Arctic gone into below average territory also:


* Live image - will auto-update

Yesterday saw sea ice extent reach 14,412,259 km2 which is the current maximum for the 2019-2020 freezing season with around one week on average left to go. This puts this year at 12th lowest in the satellite recording history (1979-present). Also of note is sea ice area which is currently 14th in the satellite recording history.

With the aforementioned cold spell taking hold, it will be interesting to see if the freezing season extends beyond the average finish date. The latest date for an Arctic sea ice maximum extent was March 19th 2014. Either way, the cold temperatures should hopefully assist in tempering the volumes lost in the early days of the melt season which could prove to be beneficial later in the summer.
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06-03-2020, 09:41   #65
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To understand or explain cyclical Arctic sea ice development and disappearance across an orbit takes priority over variations from one year to the next or one decade to the next in much the same way as the rise and fall in temperatures daily in response to a turning Earth is the foundation and all other variations are extraneous.

Right now, the circumference where the Sun is out of sight, with the North Pole at its centre, has shrunken from a maximum circumference on the December Solstice otherwise known as the Arctic circle so a switch will occur in a number of weeks when the area where the Sun is constantly in view begins to expand after the Equinox at the North Pole. The decline in Arctic sea ice in response to the interplay between axial orientation and orbital motion and the traits contained within the Arctic circle with the North Pole at its centre is paramount in any consideration.

There is no comparable time lapse of the Earth on the March Equinox as there is for the September Equinox when the South Pole turns parallel to the orbital plane and perpendicular to the planet's circle of illumination -

https://en.wikipedia.org/wiki/Deep_S...-tilt-23.4.gif

It is this surface rotation as a function of the planet's orbital motion which creates the astronomical and surface spectacle of a single sunrise each year at both poles -

https://www.youtube.com/watch?v=okw6Mu3mxdM


In their eagerness to deal with Arctic sea ice evolution in terms of experimental theorists (climate change), they ignore the really good stuff where planetary dynamics create one of the great planetary spectacles of sea ice development/disappearance.

The factual primacy is that in the absence of daily rotation and all its effects, the entire surface of the planet still turns once each year to the Sun and orbital plane thereby creating a single day/night cycle. Without this fact, neither Arctic sea ice evolution, the seasons, the variations in the natural noon cycle or any other cause and effect will continue to be ignored or smothered by pseudo-intellectual fluff of speculative theorists.
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06-03-2020, 10:35   #66
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FFS, not this shít again.
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06-03-2020, 11:58   #67
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FFS, not this shít again.
Being boring is not a crime but neither is it helpful for students who perhaps can do what you cannot. From many years experience, moderators throwing their weight around worked only for a short time as it exposed a clique mentality or followers susceptible to that type of behaviour and no different here.

The fact is that in the absence of daily rotation, the entire surface of the Earth still turns once - slowly, unevenly and parallel to the orbital plane as a function of our planet's orbital motion and with it all the seasonal effects like hurricane season and Arctic sea ice evolution.

The hapless want to imagine weather is responsible for sea ice therefore lack the intellectual legitimacy for discussing the topic in much the same way they would say the Sun is responsible for the daily weather - too crude to be of any use.

The Earth not only moves but rotates in two separate ways hence dull minds wouldn't be invited to discuss the topic which incorporates annual seasons.
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07-03-2020, 12:55   #68
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Originally Posted by oriel36 View Post
The Earth not only moves but rotates in two separate ways hence dull minds wouldn't be invited to discuss the topic which incorporates annual seasons.
When I read "Annual Seasons" I automatically think of a collection of years having a pattern or a background signal that clubs them together - the consistent and repetitive wet summers of 2007 to 2012 come to mind, but none other would. So my question is - have these annual seasons been mapped out or documented? If so, where is there an easy-to-follow description and supporting evidence and with good examples for Ireland, western Europe in particular.
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07-03-2020, 14:17   #69
oriel36
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When I read "Annual Seasons" I automatically think of a collection of years having a pattern or a background signal that clubs them together - the consistent and repetitive wet summers of 2007 to 2012 come to mind, but none other would. So my question is - have these annual seasons been mapped out or documented? If so, where is there an easy-to-follow description and supporting evidence and with good examples for Ireland, western Europe in particular.

Awkward phrasing on my part - the hurricane season and Arctic sea ice evolution within an annual cycle would be more appropriate as ocean temperatures fluctuate North and South of the Earth's daily rotational Equator. The dynamic behind that fluctuation is the length of time a location spends in solar radiation from the time when it exits the circle of illumination (sunrise) and when it passes back through (sunset) as the main factor. The seasonal variation, including the location of Ireland, is due to the combination of the daily and orbital surface rotations acting in combination.

Cause and effect - why is there a single day/night cycle at the North pole ?. The answer is found in Arctic sea ice as an effect where the surface area expands and shrinks in response to the area where the Sun is either completely in view or out of sight.

Without the stated fact that when daily rotation and all its effects are subtracted,the entire surface of the Earth still turns once each orbit to the Sun and parallel to the orbital plane then none of these descriptions will make sense. The North/South poles, where daily rotation is absent, provide the template for inspecting the surface rotation as a function of the orbital motion of the Earth and why there will be a single sunrise in a few weeks at the North pole.
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07-03-2020, 17:57   #70
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Here we have the latest forecast of an ice-free Arctic, this time by 2034. Disinformation at its finest again. Note how they use the polar bear topic and the blatant lie that the "ice has been steadily decreasing". This is the Weather Channel. USA Today and many others have also run with it.

https://weather.com/science/environm...r-than-thought

Attached Images
File Type: png Arctice ice-free.png (328.0 KB, 466 views)
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07-03-2020, 18:47   #71
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"Will be ice free sooner than we think - by 2034?'

But.. but:

" Ice-free means the central basin of the Arctic will be ice-free and I think that that is going to happen in summer 2017 or 2018."

-some random scientist

https://www.theguardian.com/environm...mmer-next-year

Or by this year..scientists said:

https://nsidc.org/news/inthenews/arc...scientists-say

https://www.adn.com/arctic/article/e...rt/2014/11/02/

Or was that 2016..

https://www.telegraph.co.uk/science/...september-201/

I think what that headline meant to say, and should have said, is that the Arctic will be ice free a lot later than we have been constantly told it would be.

About time these false prophets were held accountable to the very people who are generously funding them. I.E, the tax payer.
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20-03-2020, 20:08   #72
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Seemingly a rampant Chelsea supporter acts like a hooligan but is also a bouncer/moderator. It means people here are afraid of people who throw their weight around otherwise known as collective cowardice.

https://www.timeanddate.com/sun/antarctica/south-pole

The Sun will turn out of sight in a few days at the South Pole for a period of 6 months while at the North pole will come into view for the first time since September 2019 and remain in view for 6 months. The surface rotation parallel to the orbital plane will, from now on, create an increasing expanse of are where the Sun is constantly in view at the North pole until it reaches a maximum circumference on the June Solstice.

Sea ice will begin to diminish in response to this great surface rotation induced by the specific way the Earth orbits the Sun.

In an era of the coronavirus some people show themselves to be small and especially those modeling the spread of the virus based on a herd immunity/mentality.
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21-03-2020, 12:48   #73
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Sometimes people are their own worst enemies, enjoy your month off .

Quote:
Originally Posted by oriel36 View Post
Seemingly a rampant Chelsea supporter acts like a hooligan but is also a bouncer/moderator. It means people here are afraid of people who throw their weight around otherwise known as collective cowardice.

https://www.timeanddate.com/sun/antarctica/south-pole

The Sun will turn out of sight in a few days at the South Pole for a period of 6 months while at the North pole will come into view for the first time since September 2019 and remain in view for 6 months. The surface rotation parallel to the orbital plane will, from now on, create an increasing expanse of are where the Sun is constantly in view at the North pole until it reaches a maximum circumference on the June Solstice.

Sea ice will begin to diminish in response to this great surface rotation induced by the specific way the Earth orbits the Sun.

In an era of the coronavirus some people show themselves to be small and especially those modeling the spread of the virus based on a herd immunity/mentality.
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01-09-2020, 12:27   #74
bazlers
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Snow/Ice Advance 20/21

Hi Guys,

Just starting this thread. More informed people than me can keep it going.

Does anyone have the percentage of how much ice was lost this summer or are we improving from other years?

@Kermit do you want to kick this off again?
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01-09-2020, 13:35   #75
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Arctic Sea Ice Extent is hovering around the 4M km/2 (JAXA) and nearer to 4.35M km/2 (NSIDC) who are the two main reporting agencies releasing daily data.

JAXA: https://ads.nipr.ac.jp/vishop/#/monitor - Click on extent graph
NSIDC: https://nsidc.org/arcticseaicenews/c...sea-ice-graph/

Record low in 2012 was around 3.2M km/2 and this year will likely end up in second or third position when the usual summer melt out finishes around the second week of September or thereabouts.

Meanwhile the Antarctic sea ice extent has returned above normal after an average freezing season.
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