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According to EPA emission factors, which only date back to 1990, the average new gasoline car produced 1.04 g/mile (exhaust VOC), 2.32 g/mi (NOx),...
Here's more info on this study beyond the abstract... PNNL: News - Tiny particles have outsize impact on storm clouds, precipitation
Study of anthropogenic ultrafine particle contribution to stronger storms and heavier rain events... Substantial convection and precipitation...
That may explain the polar vortex expanding in radius, but it doesn't address the increase in "waviness" of the flow around the polar vortex....
I completely agree that the greater the thermal gradient, the greater the turbulence, and vice-versa. Based on my observations as a NWS...
Extreme cold outbreaks seem to be phenomena of little agreement at this time with respect to AGW. AMS just published a series of papers of the...
Bob - I know you're an engineer, so if you or any others on this site notice any errors in the 330i vs. 328d emission calculations, please let me...
Those are EPA's data, but they seem reasonable to me. Gasoline is something like 500 times more volatile than diesel fuel at STP. So much higher...
Oh I completely agree about GreenerCars. I don't like their methodology either. I just don't have any other metric with which to compare at this...
I haven't looked at the 330e, but I have done an emissions comparison of the 328d and the 330i. "GreenerCars" rates the 2017 328d "greener" than...
According to the latest version of the GREET model (GREET_2017), EVs do produce more GHG emissions during vehicle manufacturing: [IMG]...
Keep in mind that the technology to track storms globally has changed dramatically over the past 160 years.
Here are the latest spaghetti plots of the GFS model ensembles and ECMWF (Euro) model ensembles, along with color-coded max wind: [IMG] Edit:...
I agree that warm surface water is the primary source of energy for tropical systems. I tend to agree with DAS that tropical systems are at the...
It's PM from the wild fires... [IMG] Ozone is a non-issue at this time... [IMG]
That is pretty much what happened. Upper ridging in the southwestern U.S. blocked Harvey from pushing farther inland than it did. If you recall,...
DME = dimethyl ether. It has properties similar to propane, i.e., is gaseous at STP.
There's a tool available that projects the emissions (both GHG and air pollution) of many light-duty vehicle technologies (e.g., BEV, PHEV, HEV,...
There's a METAR map that I use on a regular basis. The U.S. map is available at CWSU National TAF METAR maps - NOAA NWS and the East Texas map is...
Convection usually occurs in the feeder bands of tropical systems, not in the central dense overcast. Any tornadoes that may occur also usually...
