Underground may be for certain figures stored still very large amount of thermal energy (again, the average lightning transmit power at least several hundred kilowatt hours up to several megawatt-hours), and although under the ground surface remains less than one percent, still causes such a change (thermal), which may be in the infrared spectrum very noticeable.
Underground maaaring maging para sa ilang mga numero Stored pa rin napaka malaking ng halaga ng thermal enerhiya (muli, ang average kapangyarihan magpadala sa kidlat freezer Maraming daang kilowat oras hanggang sa ilang megawat-oras), at Kahit na sa ilalim ng sa lupa ibabaw nananatiling Mas mababa sa isang porsyento, pa rin nagiging sanhi ng droughts at pagbabago (thermal), Aling ay maaaring sa infrared spectrum napaka-kapansin-pansin.