Radiative Budget in the Lower Tropical Stratosphere from the Combination of Balloon-Borne Lidar and Radiometric Measurements - INSU - Institut national des sciences de l'Univers Access content directly
Conference Papers Year : 2023

Radiative Budget in the Lower Tropical Stratosphere from the Combination of Balloon-Borne Lidar and Radiometric Measurements

François Ravetta
Thomas Lesigne
Vincent Mariage
Jérôme Bureau
Alain Hauchecorne
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  • PersonId : 914935
Jacques Pelon

Abstract

The atmospheric layer near the tropical tropopause (14–18.5 km), referred to as the Tropical Tropopause Layer (TTL), is a key region of the Earth’s atmosphere and the gateway to the stratosphere. Along their ascent through the extremely cold TTL ( <200K), air parcels undergo ice formation and freeze-drying, which is ultimately responsible for the dryness of the stratosphere, of dramatic importance for stratospheric chemistry and the Earth’s radiative balance. TTL ice clouds (cirrus) also directly affect the Earth’s radiative budget. Combined lidar and radiometric measurements onboard stratospheric balloons make it possible to estimate their radiative forcing at a fine scale.
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Dates and versions

insu-04371416 , version 1 (03-01-2024)

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François Ravetta, Thomas Lesigne, Vincent Mariage, Jérôme Bureau, Alain Hauchecorne, et al.. Radiative Budget in the Lower Tropical Stratosphere from the Combination of Balloon-Borne Lidar and Radiometric Measurements. ILRC 30: Proceedings of the 30th International Laser Radar Conference, Jun 2022, Big Sky, Montana, United States. pp.781-785, ⟨10.1007/978-3-031-37818-8_100⟩. ⟨insu-04371416⟩
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