Transient luminous events ghost12/25/2023 ![]() ![]() They typically appear at about 90 Km in altitude and are considered the most common type of Transient Luminous Event.īLUE STARTERS: A blue starter is an electric streamer discharge that initiates under the screening layer at the cloud top. They project a ring of red light as electrons at the base of the ionosphere excite nitrogen molecules. They are mainly purple in color like the tendrils of a sprite and will transition to blue towards the bottom.ĮLVES: They are an electromagnetic pulse that originates at the same time as the cloud-to-ground lightning strike. Its hard to link them to a particular cloud-to-ground lightning strike. TROLLS: They occur during long-lasting sprite events with ongoing lightning activity in the cloud and with long lasting +CG currents to ground. They initiate at about 80-85 KM and will typically look like a red oval shaped cloud. HALOS: They are typically triggered by a positive cloud-to-ground lightning strike like sprites and will sometimes appear together with sprites. They are mainly red in color but as they grow downward they will transition to purple and then to blue. The streamers first grow downward and then upwards before disappearing. SPRITES: They initiate between 65 and 85 km in altitude and are typically triggered by a positive cloud-to-ground lightning strike. What are the different types of transient luminous events? Gigantic jets is a transient luminous event. The chart below presents all the Transient Luminous Event that have been observed so far: ![]() TLEs are secondary phenomena that occur in the upper atmosphere in association with underlying thunderstorm lightning. Gigantic jets are transient luminous events (TLE) also known as upper-atmospheric lightning or ionospheric lightning and are believed to be electrically induced forms of luminous plasma. This is one the best-ever photos of a Gigantic Jet from the ground. ![]()
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