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Renerpho

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Re: Temperature records (data)
« Reply #200 on: September 18, 2023, 05:09:53 AM »
https://phys.org/news/2023-09-humanity-deep-danger-zone-planetary.html

And that's how I learn that Will Steffen has died in January. Nice of them to dedicate the paper to him.
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kiwichick16

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kiwichick16

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Re: Temperature records (data)
« Reply #202 on: September 18, 2023, 08:07:16 AM »
global air temps  anomaly now largest since February 2016

https://climatereanalyzer.org/clim/t2_daily/?dm_id=world

vox_mundi

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Re: Temperature records (data)
« Reply #203 on: September 18, 2023, 05:14:48 PM »
Weather observations from bombed battleships' logbooks help scientists understand climate change
https://phys.org/news/2023-09-weather-battleships-logbooks-scientists-climate.html

A research paper, published in Geoscience Data Journal, tells the story of the recovery of World War II weather data that comes from 19 US Navy ships. Its rescue was made possible thanks to the hard work of over 4,000 volunteers who transcribed more than 28,000 logbook images from the US Navy fleet stationed at Hawai'i from 1941–1945.

Previous studies have suggested these years were abnormally warm. The new dataset, encompassing over 630,000 records with more than 3 million individual observations, will help to show whether this was the case.

... Observations from naval vessels were the primary sources of marine observations for the World War II period but many records were destroyed as an act of war, or simply forgotten due to the length of time they were considered classified.

The recovered dataset reveals how wartime necessitated changes in observation practices. For example, more observations were taken during daytime than nighttime to reduce exposure to the enemy ships and avoid being detected. It is believed that changes such as this could have led to slightly warmer temperatures being recorded, meaning today's history books show a period of abnormal warmth in global datasets during World War II. The new data will help resolve this uncertainty.

Digitising weather observations from World War II US naval ship logbooks, Geoscience Data Journal (2023).
https://rmets.onlinelibrary.wiley.com/doi/10.1002/gdj3.222
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Renerpho

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Re: Temperature records (data)
« Reply #204 on: September 18, 2023, 06:25:08 PM »
The recovered dataset reveals how wartime necessitated changes in observation practices. For example, more observations were taken during daytime than nighttime to reduce exposure to the enemy ships and avoid being detected. It is believed that changes such as this could have led to slightly warmer temperatures being recorded, meaning today's history books show a period of abnormal warmth in global datasets during World War II.

That's a big one! The "temperature maximum" during the 1940s looks so out of place. However, I wonder why much of that "spike" should have happened after 1945, see the plot below. Surely the war may be a large contributing factor, but more is needed to explain what happened after the war was over.
It is no good trying to stop knowledge from going forward. Ignorance is never better than knowledge. -- Laura Fermi (sic!) https://en.wikiquote.org/wiki/Talk:Enrico_Fermi#Unsourced

Renerpho

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Re: Temperature records (data)
« Reply #205 on: September 18, 2023, 06:33:01 PM »
If you split this into northern and southern hemisphere, the "peak" started around 1930 for the northern hemisphere (well before WWII), while the southern hemisphere actually saw a sudden shift around 1940, which did not return back to the old state after 1945. Whatever happened here is more complicated than a few years (1939-1945) of bad data.
It is no good trying to stop knowledge from going forward. Ignorance is never better than knowledge. -- Laura Fermi (sic!) https://en.wikiquote.org/wiki/Talk:Enrico_Fermi#Unsourced

Renerpho

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Re: Temperature records (data)
« Reply #206 on: September 18, 2023, 06:37:35 PM »
One of the few regions that do not show a distinct spike during WWII is the North Atlantic. That's not easy to explain if the cause for the spike is related to ships reacting to the war.
It is no good trying to stop knowledge from going forward. Ignorance is never better than knowledge. -- Laura Fermi (sic!) https://en.wikiquote.org/wiki/Talk:Enrico_Fermi#Unsourced

Darvince

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Re: Temperature records (data)
« Reply #207 on: September 19, 2023, 09:16:53 AM »
Global air temperature anomaly yesterday was 1.08°C, compared to the 1979-2000 baseline. I believe that's the highest it ever was. The previous record was 1.02°C from 6 July 2023.

Add 0.31°C to convert that to the more commonly used 1951-1980 baseline, or 0.34°C if you prefer the 1901-2000 baseline instead.
This isn't yet the highest temperature anomaly in CFS's dataset - late February 2016 has a series of days with very high anomalies, peaking at +1.15°C on February 28th.

kiwichick16

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Re: Temperature records (data)
« Reply #208 on: September 19, 2023, 12:19:45 PM »
@  darvince....+1

kiwichick16

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Re: Temperature records (data)
« Reply #209 on: September 19, 2023, 12:22:01 PM »
Re temp records and fluctuations   .....detailed historical explanation and timeline of significant scientific progress

https://history.aip.org/climate/20ctrend.htm#L_M0465

Renerpho

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Re: Temperature records (data)
« Reply #210 on: September 19, 2023, 01:20:04 PM »
This isn't yet the highest temperature anomaly in CFS's dataset - late February 2016 has a series of days with very high anomalies, peaking at +1.15°C on February 28th.

Thanks! I had missed that.
2016 was a crazy year. We'll see if 2024 can beat it.
It is no good trying to stop knowledge from going forward. Ignorance is never better than knowledge. -- Laura Fermi (sic!) https://en.wikiquote.org/wiki/Talk:Enrico_Fermi#Unsourced

kiwichick16

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Yuha

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Re: Temperature records (data)
« Reply #212 on: September 21, 2023, 10:51:17 AM »
NOAA reports warmest August by a big margin and other records
https://www.ncei.noaa.gov/news/global-climate-202308
https://www.ncei.noaa.gov/access/monitoring/monthly-report/global/202308

Quote
The August global surface temperature was 1.25°C (2.25°F) above the 20th-century average of 15.6°C (60.1°F), making it the warmest August on record. This marked the first time an August temperature exceeded 1.0°C (1.8°F) above the long-term average. August 2023 was 0.29°C (0.52°F) warmer than the previous August record from 2016, but the anomaly was 0.10°C (0.18°F) lower than the all-time highest monthly temperature anomaly on record (March 2016). However, the August 2023 temperature anomaly was the third-highest anomaly of any month on record. August 2023 marked the 45th-consecutive August and the 534th-consecutive month with temperatures at least nominally above the 20th-century average.

June-August was the warmest by a big margin too.

January-August was the second warmest behind 2016 and this year is very likely to become the warmest year.



Many regional records too:
Quote
  • Asia, Africa, North America and South America each had their warmest August on record.
  • Record-warm temperatures covered nearly 13% of the world's surface this August, which was the highest August percentage since the start of records in 1951.




Darvince

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Re: Temperature records (data)
« Reply #213 on: September 23, 2023, 09:23:10 AM »
https://nitter.net/hausfath/status/1704569097659498578#m

JRA-55's global temperature anomaly has exceeded February 2016's anomaly, and CFS's is heading back up, with September 22nd at +1.12°C.

Yuha

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Re: Temperature records (data)
« Reply #214 on: September 23, 2023, 12:17:36 PM »
https://nitter.net/hausfath/status/1704569097659498578#m

JRA-55's global temperature anomaly has exceeded February 2016's anomaly, and CFS's is heading back up, with September 22nd at +1.12°C.


kiwichick16

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Re: Temperature records (data)
« Reply #215 on: September 28, 2023, 10:44:58 AM »

Yuha

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Re: Temperature records (data)
« Reply #216 on: September 28, 2023, 06:02:00 PM »
Berkeley Earth: 65 countries had their warmest August on record
https://berkeleyearth.org/august-2023-temperature-update/

Quote
In total, we estimate that 65 countries (mostly in the tropics) had their warmest August on record, these were:

Antigua and Barbuda, Bahrain, Barbados, Bolivia, Brazil, Burundi, Cabo Verde, Cambodia, Cameroon, Central African Republic, Chad, China, Colombia, Comoros, Cuba, Democratic Republic of the Congo, Djibouti, Dominica, Dominican Republic, Ecuador, Eritrea, Ethiopia, Gabon, Grenada, Guatemala, Guinea, Guyana, Haiti, Iran, Iraq, Ivory Coast, Jamaica, Japan, Kenya, Liberia, Mauritania, Mauritius, Mexico, Morocco, Niger, Palau, Panama, Peru, Philippines, Qatar, Republic of the Congo, Russia, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, Saudi Arabia, Seychelles, Somalia, Sri Lanka, Sudan, Suriname, Tanzania, The Bahamas, Trinidad and Tobago, Turkey, Venezuela, Western Sahara, and Yemen

In addition, some of these broke their August records by extraordinary margins. In Ecuador, close to the strengthening El Niño, the August average temperature record was broken by more than 1.4 °C (2.5 °F).


kassy

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Re: Temperature records (data)
« Reply #217 on: September 28, 2023, 07:01:15 PM »
Quote
Globally, August 2023 was the warmest August since directly measured instrumental records began in 1850, breaking the record previously set in August 2016. In addition, this August exceeded the previous record by 0.31 °C (0.56 °F), a surprisingly large margin, well outside the margin of uncertainty.

Nice attribution graphs in the article too.
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Renerpho

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Re: Temperature records (data)
« Reply #218 on: September 28, 2023, 09:24:44 PM »
Quote
Globally, August 2023 was the warmest August since directly measured instrumental records began in 1850, breaking the record previously set in August 2016. In addition, this August exceeded the previous record by 0.31 °C (0.56 °F), a surprisingly large margin, well outside the margin of uncertainty.

Nice attribution graphs in the article too.

Yes, especially:





Are there signs in that second graph that the water vapour content is now beginning to fall? We'll see.
It is no good trying to stop knowledge from going forward. Ignorance is never better than knowledge. -- Laura Fermi (sic!) https://en.wikiquote.org/wiki/Talk:Enrico_Fermi#Unsourced

Yuha

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Re: Temperature records (data)
« Reply #219 on: September 28, 2023, 11:01:58 PM »
Quote
Globally, August 2023 was the warmest August since directly measured instrumental records began in 1850, breaking the record previously set in August 2016. In addition, this August exceeded the previous record by 0.31 °C (0.56 °F), a surprisingly large margin, well outside the margin of uncertainty.

Nice attribution graphs in the article too.

Yeah, I posted more from that article to the "Global Air Surface Temperatures" thread that used to be very active but has been dormant for a while.

Paddy

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Re: Temperature records (data)
« Reply #220 on: October 03, 2023, 06:23:15 AM »
https://www.theguardian.com/environment/2023/oct/01/autumn-heat-continues-in-europe-after-record-breaking-september

“Austria, Belgium, France, Germany, Poland and Switzerland have all experienced their hottest Septembers on record , with unseasonably high temperatures set to continue into October, in a year likely to be the warmest in human history.

As 31C (88F) was forecast in south-west France on Sunday and 28C in Paris, the French weather authority, Météo-France, said September’s average temperature was 21.5C, between 3.5C and 3.6C above the norm for the 1991-2020 reference period.


That made it the hottest September – by more than 1C – since records began in 1900, the meteorologist Christine Berne said, adding that in several regions, the deviation from the September average of the past three decades had exceeded 4C, sometimes 6C.”

Niall Dollard

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Re: Temperature records (data)
« Reply #221 on: October 03, 2023, 08:16:26 AM »
FWIW, just leaving this here in this thread because I dont want to mix it in with the Global Surface Temp thread (it's not surface and also its questionable derivation).

The UAH temp anomaly for Sept 2023 was +0.9° C. The highest of any month, under this version of the series.

vox_mundi

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Re: Temperature records (data)
« Reply #222 on: October 03, 2023, 04:50:32 PM »
Japan Sees Hottest September Since Records Began
https://phys.org/news/2023-10-japan-hottest-september-began.html

Japan has seen its hottest September since records began 125 years ago, the weather agency said, in a year expected to be the warmest in human history.

The scorching September's average temperature was 2.66 degrees Celsius higher than usual, the Japan Meteorological Agency said on Monday.

This was "the highest figure since the start of statistics in 1898", the agency said in a statement.

Across Japan last month, 101 of 153 observation locations broke an average temperature record, including in Tokyo, with an all-time high of 26.7 degrees Celsius (80 degrees Fahrenheit), in Osaka with 27.9C and in Nagoya with 27.3C.

French weather authority Meteo-France said the September temperature average in the country will be around 21.5 degrees Celsius, between 3.5C and 3.6C above the 1991-2020 reference period.

The UK, too, has matched its record for the warmest September since its records began in 1884.

-------------------------------------------------------------------

Someday soon, when you type the words "Today is " the auto-complete phrase that will follow will be "... the warmest in human history."
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El Cid

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Re: Temperature records (data)
« Reply #223 on: October 03, 2023, 05:23:52 PM »
Budapest, Hungary had its warmest September (I don't have whole country data yet, but I am sure that is also a record).

Average temperature in September 2023 was 21,3 C (previous record was 20,7C in 1947). The 1950-80 average is 16,7 C, so this was 4,6 C higher !!!

Fun fact: the average July/August temperature during 1950-80 was cca 21,3 C, so this September was as warm as the warmest months of summer back in the old days. That's quite something.

kassy

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Re: Temperature records (data)
« Reply #224 on: October 03, 2023, 05:24:49 PM »
We are collecting a remarkable record of records so far this year...
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John_the_Younger

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Re: Temperature records (data)
« Reply #225 on: October 03, 2023, 06:50:45 PM »
Quote
remarkable
As in, there is a high probability they will be 'remarked' next year.  :'(

vox_mundi

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Re: Temperature records (data)
« Reply #226 on: October 04, 2023, 03:08:14 PM »
New Zealand Records Hottest September On Record
https://www.theguardian.com/world/2023/oct/04/new-zealand-october-temperature-record-heat-september

... The country recorded its hottest September on record, with every region in the country experiencing above-average temperatures, with one area hitting 29.6°C. (85.3°F)

Data from the National Institute of Water and Atmospherics (NIWA) shows the nationwide average temperature was 11.9°C, 1.3°C warmer than the 1991-2020 September average and the hottest since records began in 1909.
There are 3 classes of people: those who see. Those who see when they are shown. Those who do not see

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kiwichick16

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NevB

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Re: Temperature records (data)
« Reply #228 on: October 05, 2023, 03:26:27 PM »
Even UAH is showing the big step.
(Team denial is busy thinking about how to erase the last few decades of support for UAH)

This is not good but also not unexpected for many of us.


be cause

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Re: Temperature records (data)
« Reply #229 on: October 06, 2023, 12:35:42 AM »
Norn' Ireland equealed it's Sept. temp. record @14.2'C .
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Paddy

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Re: Temperature records (data)
« Reply #230 on: October 06, 2023, 02:26:55 AM »
Norn' Ireland equealed it's Sept. temp. record @14.2'C .

As did the UK overall, at 15.2 degrees C. https://www.bbc.co.uk/weather/features/66957427

Haven’t seen a september average for the Republic of Ireland yet. so 2021’s September record may or may not stand, although it was unsurprisingly a warm one this year: https://www.met.ie/climate-statement-for-september-2023

vox_mundi

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Re: Temperature records (data)
« Reply #231 on: October 06, 2023, 05:35:10 PM »
Eastern Canada Breaks Autumn Heat Records
https://phys.org/news/2023-10-eastern-canada-autumn.html

Eastern Canada shattered heat records this week with temperatures close to 30 degrees Celsius (86 Fahrenheit), worrying experts and everyday people struggling to cope with extreme weather made worse by climate change.

The last three days heat records were broken in Quebec and adjacent provinces. On Wednesday the mercury reached 29.3 degrees Celsius in Montreal, surpassing the record of 26.7 degrees set in 2005.

At the top of Mount Royal—a mountain in the heart of the city—bright red, orange and yellow autumn foliage was rustled by what felt like a summer breeze.

... Temperatures are set to return to seasonal norms over the weekend, with snow forecast for some northern parts of Canada, according to Begin.
There are 3 classes of people: those who see. Those who see when they are shown. Those who do not see

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Niall Dollard

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Re: Temperature records (data)
« Reply #232 on: October 06, 2023, 06:42:40 PM »

Haven’t seen a september average for the Republic of Ireland yet. so 2021’s September record may or may not stand, although it was unsurprisingly a warm one this year: https://www.met.ie/climate-statement-for-september-2023

Third warmest September in the Republic, after 2021 and 2006.

Darvince

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Re: Temperature records (data)
« Reply #233 on: October 11, 2023, 01:02:12 PM »
Climate Reanalyzer has changed this page's charts to have two sig figs instead of one, however you can still download the data as json and compute precise anomalies from there.

kassy

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Re: Temperature records (data)
« Reply #234 on: November 08, 2023, 01:08:44 PM »
High temperatures around the world have continued into November with hundreds of heat records already broken this month in Japan.

Europe meanwhile saw temperatures over 35C for the first time ever in November, with high readings in several parts of Greece.

https://www.bbc.com/news/science-environment-67332791
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vox_mundi

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Re: Temperature records (data)
« Reply #235 on: December 06, 2023, 05:17:54 PM »
November is the Sixth Straight Month to Set a Heat Record, Scientists Say
https://climate.copernicus.eu/surface-air-temperature-november-2023



https://climate.copernicus.eu/surface-air-temperature-november-2023

For the sixth month in a row, Earth set a new monthly record for heat, and also added the hottest autumn to the litany of record-breaking heat this year, the European climate agency calculated

And with only one month left, 2023 is on the way to smashing the record for hottest year.

November was nearly a third of a degree Celsius (0.57 degrees Fahrenheit) hotter than the previous hottest November, the European Space Agency's Copernicus Climate Change Service announced early Wednesday. November was 1.75 degrees Celsius (3.15 degrees Fahrenheit) warmer than pre-industrial times, tying October and behind September, for the hottest above average for any month, the scientists said.

November averaged 14.22 degrees Celsius (57.6 degrees Fahrenheit), which is 0.85 degrees Celsius (1.5 degrees Fahrenheit) warmer than the average the last 30 years. Two days during the month were 2 degrees Celsius (3.6 degrees Fahrenheit) warmer than pre-industrial times, something that hadn't happened before, according to Burgess.

So far this year is 1.46 degrees Celsius (2.6 degrees Fahrenheit) warmer than pre-industrial times, about a seventh of a degree warmer than the previous warmest year of 2016, Copernicus scientists calculated. That's very close to the international threshold the world set for climate change.

... Scientists calculate with the promises countries around the world have made and the actions they have taken, Earth is on track to warm 2.7 to 2.9 degrees Celsius (4.9 to 5.2 degrees) above pre-industrial times.



The northern autumn is also the hottest fall the world has had on record, Copernicus calculated.

Copernicus records go back to 1940. United States government calculated records go back to 1850. Scientists using proxies such as ice cores, tree rings and corals have said this is the warmest decade Earth has seen in about 125,000 years, dating back before human civilization. And the last several months have been the hottest of the last decade.

... It's only going to get warmer as long as the world keeps pouring greenhouse gases into the atmosphere, Burgess said. And she said that means "catastrophic floods, fires, heat waves, droughts will continue.''

"2023 is very likely to be a cool year in the future unless we do something about our dependence on fossil fuels," Burgess said.



There are 3 classes of people: those who see. Those who see when they are shown. Those who do not see

Insensible before the wave so soon released by callous fate. Affected most, they understand the least, and understanding, when it comes, invariably arrives too late

Fiat iustitia, et pereat mundus

gerontocrat

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Re: Temperature records (data)
« Reply #236 on: December 06, 2023, 06:50:26 PM »
I am watching +1.5 becoming the floor of temperature rise instead of the ceiling.
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kassy

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Re: Temperature records (data)
« Reply #237 on: December 06, 2023, 08:50:03 PM »
That first picture does really hint at 2024 being interesting.
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kassy

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Re: Temperature records (data)
« Reply #238 on: December 13, 2023, 09:23:00 AM »
Spain hits a new heat record for december. It was 29,9C in Malaga.
The old record was 29,4C in Granada in 2010.

https://www.nu.nl/buitenland/6293817/spanje-breekt-hitterecord-in-december-bijna-30-graden-in-malaga.html
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jai mitchell

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Re: Temperature records (data)
« Reply #239 on: December 13, 2023, 09:31:02 PM »

"2023 is very likely to be a cool year in the future unless we do something about our dependence on fossil fuels," Burgess said.





The correction of baseline for ERA5 data is +0.63 to adjust to pre-industrial.  So the last few months have been 1.85C above pre-industrial.
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kassy

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Re: Temperature records (data)
« Reply #240 on: December 13, 2023, 11:14:57 PM »
Hottest summer ever for the Arctic at 6,4C

Yearly temps up 0,25C per decade since 1940 while average summer temps increased with 0,17C.

https://www.nu.nl/buitenland/6293915/noordpoolgebied-beleefde-dit-jaar-de-warmste-zomer-ooit.html

From NOAAs Arctic Report Card
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Renerpho

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Re: Temperature records (data)
« Reply #241 on: January 28, 2024, 02:03:01 PM »
One of the few temperature records not yet held by 2023/24 has fallen. Southern hemisphere surface air temperature reaches an all-time high (16.9°C). Previous record was set in 2020.
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Renerpho

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Re: Temperature records (data)
« Reply #242 on: January 28, 2024, 02:15:00 PM »
Next will probably be surface air temperature in the tropics. 2024 is on a good way to break that record as well.

Fun fact: This year's annual minimum (25.8°C) would have been a record-high annual maximum before 1958.
It is no good trying to stop knowledge from going forward. Ignorance is never better than knowledge. -- Laura Fermi (sic!) https://en.wikiquote.org/wiki/Talk:Enrico_Fermi#Unsourced

Niall Dollard

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Re: Temperature records (data)
« Reply #243 on: January 28, 2024, 02:59:45 PM »
Kinlochewe in NW Scotland has set a new UK January record (19.6°) today 28/01/24.

The old January record was 18.3°.
« Last Edit: January 28, 2024, 04:15:23 PM by Niall Dollard »

Renerpho

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Re: Temperature records (data)
« Reply #244 on: January 28, 2024, 04:53:07 PM »
Kinlochewe in NW Scotland has set a new UK January record (19.6°) today 28/01/24.

The old January record was 18.3°.

The Scottish Highlands are not the place to set temperature records. Well, not for high temperatures!
https://www.bbc.com/news/uk-scotland-highlands-islands-68119951

It not only breaks the UK January record, but also the record for the highest winter temperature in Scotland (18.7°C, recorded in December 2018) by a wide margin.
It is no good trying to stop knowledge from going forward. Ignorance is never better than knowledge. -- Laura Fermi (sic!) https://en.wikiquote.org/wiki/Talk:Enrico_Fermi#Unsourced

Niall Dollard

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Re: Temperature records (data)
« Reply #245 on: January 29, 2024, 10:30:38 PM »
Kinlochewe in NW Scotland has set a new UK January record (19.6°) today 28/01/24.

The old January record was 18.3°.

Another climatological site just pipped the max at Kinlochewe.

Achfary, Scotland is now the provisional holder of the new UK January record. 19.9°

vox_mundi

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Re: Temperature records (data)
« Reply #246 on: February 07, 2024, 07:41:04 PM »
January 2024 was warmest on record in Spain
https://phys.org/news/2024-02-january-warmest-spain.html

... The average temperature in mainland Spain in January 2024 was 8.4C, 2.4 degrees higher than average for the period and 0.4 degrees above the previous record set in 2016, Aemet said in a statement.

Temperatures reached or exceeded 20C at nearly 400 meteorological stations—almost half the country's total—in January.

The mercury rose to 29.5C in the eastern region of Valencia, 28.5C in Murcia in the southeast and 27.8C near Malaga in the south—temperatures usually seen in June.
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Niall Dollard

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Re: Temperature records (data)
« Reply #247 on: February 19, 2024, 09:48:28 PM »
Warm air moving north of Japan has moved into the islands of far eastern Russia.

At Kurilsk, normally kept cool by the cold Oyashio Current, they shattered the old Feb record of 9.8°C by a huge +7°C margin. Today's 16.8° C max even surpasses its all time March record. Records began in  1948.

kassy

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Re: Temperature records (data)
« Reply #248 on: February 19, 2024, 11:42:16 PM »
Meteorologists predict that February is set to break a new heat record due to global warming and El Niño, which raises temperatures on land and in the oceans worldwide.

Heating Spike
The heating spike this month has become so pronounced that climate charts are breaking new ground, particularly for sea-surface temperatures, which have persisted and accelerated to the point where expert observers are struggling to explain how the change is occurring.

The surface air temperature on February 9, the most recent day for which data is available, was 13.7°C - a 1.3°C anomaly, making it the hottest February day in recorded history and narrowly missing the Paris Agreement threshold of 1.5°C.

The temperature on February 9 was nearly a degree higher than the 12.8°C recorded on the same date last year, according to data from the University of Maine's ClimateReanalyser.

According to Zeke Hausfather, a Berkeley Earth scientist, humanity is on track to have the hottest February in recorded history, following January, December, November, October, September, August, July, June, and May.

...

Maximiliano Herrera, a blogger on Extreme Temperatures Around the World, called the spike in thousands of meteorological station heat records "insane," "total madness," and "climatic history rewritten." What astounded him was not just the number of records, but also how many of them outperformed previous ones.

He stated that 12 meteorological stations in Morocco recorded temperatures of 33.9°C or higher, which was not only a national record for the hottest winter day but also more than 5°C above average for July.

Harbin, in northern China, had to halt its winter ice festival because temperatures rose above freezing on three days this month, an unprecedented occurrence.

In the last week, monitoring stations in South Africa, Saudi Arabia, Thailand, Indonesia, Kazakhstan, Colombia, Japan, North Korea, the Maldives, and Belize have set monthly heat records.

Herrera stated that 140 countries broke monthly heat records in the first half of this month, which is comparable to the final results of the last six record-breaking months of 2023 and more than three times any month prior to 2023.

According to Katharine Hayhoe, head scientist for The Nature Conservancy, the uncertainty regarding how the many elements interact serves as a warning that we do not completely understand how the complex Earth system is responding to unprecedented radiative forcing.

https://www.natureworldnews.com/articles/60694/20240219/scientists-expects-record-breaking-temperature-february-due-human-made-global.htm
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Sigmetnow

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Re: Temperature records (data)
« Reply #249 on: February 20, 2024, 08:00:22 PM »
Brian McNoldy
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Don't make me extend my axis!
 
The North Atlantic sea surface temperature is now up to an unbelievable 4.34 standard deviations above the recent 1991-2020 baseline climatology. Relative to that, the current anomaly is a 1-in-142,000-year event!
2/20/24, 10:18 AM  https://x.com/bmcnoldy/status/1759960696127975637
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