Natural gas is mostly methane. In my piece on the Cornell study, my subhed was âLeakage of methane from fracking boosts shale gas global warming impact.â I didnât note until several paragraphs later that âNatural gas is composed largely of methane,â which comes from the second sentence of the study itself.
Tornado strength is currently measured on what is called the Enhanced Fujita Scale (adapted from the simpler Fujita Scale in 2007), which gives the tornado a rating from 0 to 5 based on estimated wind speeds and the severity of the damage.
Tornado damage to a house in Oklahoma County, Oklahoma hit during the May 10â13, 2010 tornado outbreak. Tornado intensity can be measured by in situ or remote sensing measurements, but since these are impractical for wide scale use, intensity is usually inferred via proxies, such as damage.The Fujita scale and the Enhanced Fujita scale rate tornadoes by the damage caused.ear the tornado's peak intensity, they recorded a wind speed of 115â120 m/s (260â270 mph). Though the portable radar had uncertainty of Â±5â10 m/s (11â22 mph), this reading was probably within the F5 range, confirming that tornadoes were capable of violent winds found nowhere else on earth.