Sentences with phrase «radiation levels below»

Even radiation levels below those predicted for the end of the Permian period damage trees» abilities to make seeds, researchers report...

Not exact matches

After the government evacuated more than 100,000 people living within 20 kilometres of the stricken power plant, it said they should be allowed to return to their homes when radiation dose levels fell below 20 millisieverts a year.

Researchers emphasize, however, that environmental levels of radiation outside the 20 - kilo metre evacuation zone around the power plant are currently far below levels that warrant concerns about human health.

Your cat can not be released from the Thyro - Cat facility until the amount of radiation in his / her body is below a level mandated by law.

Thus radiation emitted from below the TAU = 1 level gets mostly absorbed before it can get out to space.

Second even if we ignore convection (and assume all warming of the atmosphere is from below, ie no incoming solar radiation is absorbed in the atmosphere) it is not the case that the atmosphere temperatures will «pivot» around some fixed level (increasing below it and falling above it).

The reduction in CO2 - cooling (of a layer between TOA and some other level) assumes the increased downward emission at the base of the layer from the non-CO2 absorber within the layer is greater than the decreased OLR at TOA, which is the absorption of radiation from below the layer minus the emission from the layer reaching TOA (refering to the «baseline effects» that would remain if the preexisting CO2 were removed).

Increased CO2 in the stratosphere at higher levels increases upwelling radiation to space which appears to have been greater than absorption from below resulting in cooling at higher levels.

The back radiation which is entrained into the ocean bulk by wave action is minimal, because wave action subducts water which is well below the level back radiation can penetrate to (little more than its own wavelength).