Terrier Poodle Mix Info

there but there is no basis of disinformation

From the site NASA Earth Observatory reports this interesting spectroradiometer MODIS satellite made which allows you to measure the radiation in the visible and infrared. The comparison of the two images is the presence of a very large formation of cirrus clouds detected only in the spectrum of 'Infrared and therefore not identifiable to the naked eye. The cirrus with these characteristics are called "sub-visible cirrus" or invisible cirrus clouds.

These areas, with no observation of clouds as invisible, are potentially favorable to the formation of persistent contrails for aircraft crossing the understanding that the temperature in the atmosphere is sufficiently low.

yet another demonstration that the simple observation alas not enough .....