2021
DOI: 10.1029/2020gl092261
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Record‐Low Cloud Temperatures Associated With a Tropical Deep Convective Event

Abstract: Earth‐orbiting satellites have long been used to examine meteorological processes. In the context of severe weather, brightness temperatures (BTs) at infrared wavelengths allow the determination of convective cloud properties. The anvils of cumulonimbus clouds, for example, typically produce BTs close to the tropopause temperature. Particularly severe storms generate overshoots that penetrate the stratosphere and are cooler than the anvil. In this study, we describe clustered storm overshoots in the tropical W… Show more

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Cited by 9 publications
(8 citation statements)
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“…Planetary Bond albedo increases linearly with cloud fraction. This relationship occurs because cloud reflectivity is large across all cloud fractions and is consistent with Earth cloud-cover measurements (King et al 2013;Kato et al 2019;Proud & Bachmeier 2021). Similarly, the reflective clouds lead to high Bond albedos at larger cloud fractions, where the resulting high planetary reflectivities cause an overall cooling of surface temperatures.…”
Section: Fractional Cloudiness Testssupporting
confidence: 69%
“…Planetary Bond albedo increases linearly with cloud fraction. This relationship occurs because cloud reflectivity is large across all cloud fractions and is consistent with Earth cloud-cover measurements (King et al 2013;Kato et al 2019;Proud & Bachmeier 2021). Similarly, the reflective clouds lead to high Bond albedos at larger cloud fractions, where the resulting high planetary reflectivities cause an overall cooling of surface temperatures.…”
Section: Fractional Cloudiness Testssupporting
confidence: 69%
“…The radiometric characteristics of clouds have been well documented for radiation budget research, meteorological processes, solid versus liquid water phase measurements, and the conversion of radiance to OD. Cloud top brightness temperature measurements are well studied and modeled for these same applications 11 . Accurate radiometric and spatial models have not been created for ground to sky cloud BBEQ temperatures.…”
Section: Introductionmentioning
confidence: 99%
“…Cloud top brightness temperature measurements are well studied and modeled for these same applications. 11 Accurate radiometric and spatial models have not been created for ground to sky cloud BBEQ temperatures. Understanding the minimum BBEQ, maximum BBEQ, variance, and transmission of clouds is important to the problem of placing clouds into the background of infrared search and track (IRST) models and simulations for target detection.…”
Section: Introductionmentioning
confidence: 99%
“…Contaminants reach the stratosphere by strong convection of air masses in the troposphere and through the tropopause. This process is known as overshooting and appears to be increasing in frequency as a result of climate change …”
Section: Introductionmentioning
confidence: 99%
“…This process is known as overshooting and appears to be increasing in frequency as a result of climate change. 22 Studies of atmospheric transport and deposition of PBT contaminants in the Antarctic began in the 1970s with snow samples from Doumer Island, west of the Antarctic Peninsula. 23 Investigations of OCPs and OHICs in East Antarctica or on the plateau are few: Tanabe et al 24 analyzed OCPs from the dichlorodiphenyl trichloroethane (DDT) group and hexachlorocyclohexane (HCH) isomers in snow samples from Syowa station on the East Antarctic coast and at nearby inland Mizuho station.…”
Section: ■ Introductionmentioning
confidence: 99%