From where does GW="Global Warming"=(°C) come from ... now that ASHR="Average Solar Heat Radiation"=(W/m2) is already -0,1% down since 1977 ?

It is a bit complicated but :

It is difficult to measure all kind of radiation separately :

1. Direct solar irradiance (W/m2)
2. Greenhouse back radiation (W/m2)
3. Latent heat radiation (W/m2) from condensing clouds as direct solar radiation, warming the cloudiness, can go up and down over several years ...

• At midnight you measure the sum of 2. and 3. together ...
• At noon you measure the sum of 1. and 2. and 3. together ...

TMax and TMin are the result of the MRM="Mixed Radiation Measurements".

So :

• TMin is supposed to be the sum of 2. and 3. together ...
• TMax is supposed to be the sum of 1. and 2. and 3. together ...

To calculate average temperature for better than 0,1°C correctness you need 288 samples per day but as far as I know, nobody does that : Violating Nyquist: Another Source of Significant Error in the Instrumental Temperature Record

To understand climate you need to study in detail, like every academic engineer does : Nyquist–Shannon sampling theorem.

Just like in image sampling you can get the wrong image, in temperature sampling you can get the wrong temperature if you do not respect the Nyquist–Shannon sampling theorem.

Temperature is the non-linear result of the 3 above mentioned heat fluxes (W/m2) making global warming and non-linear mathematics can teach you that the 3 fluxes intermodulate together and each of the 3 heat fluxes have periodic cycles that you can separate mathematically by FA="Fourier Analysis" but not a lot of climatologists do that, as far as I know ...

Anyway we may suppose that TMin and TMax are correctly measured with a correct min/max thermometer but we will not calculate TAverage from (TMin+TMax)/2 because in the above pictured example, that is a +1,4°C mistake ... to easy mistake to make ...

But the major heat source for making temperature in global warming/cooling are :

1. Direct solar irradiance
2. Greenhouse back radiation
3. Latent heat radiation from condensing clouds as direct solar radiation, warming the cloudiness, can go up and down over several years ...

• At midnight you measure the sum of 2. and 3. together ...
• At noon you measure the sum of 1. and 2. and 3. together ...

Solar radiation is weakening since 1977 ...

Professor Valentina can, about solar climate influence, tell you more than I can ...

But :

The difference between solar heat radiation (1363,5W/m2) in the little ice age during the Maunder Minimum was only 0,25% less than now (1366W/m2) ...

• The difference between a little ice age and our warm past century is only 0,25% for solar heat radiation ...
• Little energy-step for the sun but a huge step for humanity measuring temperature correctly ...

The air on earth contains about 100x more water vapor than CO2 (see graph below) and the amount of kJ heat in air as a function of humidity (see above) is well known :

But water vapor=H2O=(Hydrogen Oxide from e.g. burning Hydrogen) and from burning fossils you get CO2=(Carbon Di Oxide) and they both are greenhouse gasses absorbing photos and back radiating photons to earth :

But water vapor=H2O seems to be the dominant greenhouse gas ...

Greenhouse effect of CO2, according to NASA (see above), is only 22% and water vapor 62% of the total greenhouse effect shares ...

So we can still enjoy some global warming but for how long in the near future ?

Anyway ...

In climate science there are too many unanswered questions to answer and too many unquestioned answers to question ...

But : Health & Climate & Energy are realy very complicated science and very sensitive politico-scientific stuff and also delicate socio-economic stuff but we do the best we can and try to explain it as simple as possible but not simpler than that in the group :?CCR="Climate Change Revival