[1]: https://climatereanalyzer.org/clim/sst_daily/?dm_id=world2 [2]: https://climatereanalyzer.org/research_tools/monthly_tseries...
What changed in 1979?
More glibly: "the temperature"
Half a century of satellite remote sensing of sea-surface temperature (2019) https://www.sciencedirect.com/science/article/pii/S003442571...
I haven't looked but there will probably be references somewhere explaining the dat sources.
It can also be clearly seen that the 2020 limit on the sulphur content in the fuel oil used on board ships [1] had quite the negative effects when it comes to surface sea temperatures, but I haven't that many climate (and not only) scientists taking responsibility of that act (even though related warnings had been made, I remember reading one just before the measure went in effect).
[1] https://www.imo.org/en/mediacentre/hottopics/pages/sulphur-2...
Blasting pollution into the air is generally a bad idea. If it becomes necessary in order to fight warming, it should be done deliberately and with due consideration, not by having a bunch of ships burning dirty fuel.
So I could easily believe that we are already at +2 K for the year as whole.
The daily global 5km SSTA product requires a daily climatology to calculate the daily SST anomalies. Daily climatologies (DC) are derived from the monthly mean (MM) climatology via linear interpolation. To achieve this, we assigned the MM value to the 15th day of each corresponding month, with the individual days between these dates being derived using linear interpolation.
We then calculate the SSTA product using: SST_anomaly = SST - DC where the SST is the value for the day in question, and DC is the corresponding daily climatology for that day of the year.https://callumprentice.github.io/apps/global_temperature_cha...
and
https://callumprentice.github.io/apps/climate_temperature_ch...
It's not immediately clear if it's just absolute temperatures or relative temperatures or what. You have to look at the color scale to notice that it's from -5 to +5. But relative to what? Over what timescale? Is it a moving average?
I guess I could dig into the data link to figure it out but most people aren't going to do that.
1985 sure. Maybe 2000
But now?
a) published data tends to see corrections from sensors and methodology which take several years to work out the fine details. (This isn't an attack this is science) Which means always take yesterday's numbers with more scepticism than 2yr ago. (This is making no statement of any data you're looking at or any trend you claim to see)
b) a field dominated by modelling needs data to back it up, otherwise the conversation would be, "Why is the LHC failing to find strong theory which is absolutely there" vs "I wonder if the modelling is correct based on..." This is a certain level of maturity that certain sciences are only starting to reach after playing in the ballpark of "let's go model my idea and make a press release which will just so happen to help my funding".
Yes sea level temps are rising, absolute numbers are still difficult to come by though and last UN summary doc I read still put things at 5C global average over a century. (Yes still horrifically catastrophic for the wrong people, but I'm also not in charge)
If it does, it's not that bad.
If it gets bad, it's not a big deal in reality.
If it becomes a big deal, it was not humanity's fault.
And if it was humanity's fault, at least the planet was saved from a global dictatorship run by scientists.
"CRW's first-generation global monitoring products were operational at NOAA until April 30, 2020, when they were officially retired, and succeeded by CRW's next-generation operational daily monitoring products."
Also nice to see several shipping lanes crop up when watching it.