Results 51 to 60 of about 4,545 (231)

Revealing halos concealed by cirrus clouds

Atmospheric Measurement Techniques, 2023
Abstract. Many types of halos (including arcs) appear in the sky. Each type of halo corresponds to the shape and orientation of ice crystals in clouds, and reflects the state of the atmosphere; therefore observing them from the ground greatly helps in understanding the state of the atmosphere.
openaire   +4 more sources

Advances in CALIPSO (IIR) cirrus cloud property retrievals – Part 2: Global estimates of the fraction of cirrus clouds affected by homogeneous ice nucleation [PDF]

Atmospheric Chemistry and Physics
Cirrus clouds can form through two ice nucleation pathways (homo- and heterogeneous ice nucleation; henceforth hom and het, respectively) that result in very different cloud physical and radiative properties.
D. L. Mitchell, A. Garnier
doaj   +1 more source

Upper tropospheric cloud systems derived from IR sounders: properties of cirrus anvils in the tropics [PDF]

Atmospheric Chemistry and Physics, 2017
Representing about 30 % of the Earth's total cloud cover, upper tropospheric clouds play a crucial role in the climate system by modulating the Earth's energy budget and heat transport. When originating from convection, they often form organized systems.
S. E. Protopapadaki, C. J. Stubenrauch, A. G. Feofilov   +2 more
doaj   +1 more source

Measurement and modeling of diffuse ultraviolet radiation: A review

Photochemistry and Photobiology, EarlyView.
Solar UV radiation consists of direct and diffuse UV components. The diffuse component contributes to the exposure received by humans and to the risk of skin cancer and sun‐related eye disorders. This review aims to determine future research directions for the measurement and modeling of diffuse solar UV radiation.
Alfio V. Parisi, Joanna Turner, Abdurazaq Amar, Damien P. Igoe, Peter Schouten, Nawin Raj, Nathan Downs, Harry Butler   +7 more
wiley   +1 more source

High latitude “cirrus” clouds

Advances in Space Research, 1986
Abstract At infrared wavelengths many thin, low mass dust clouds are observed at high galactic latitudes. In this paper a number of observations, including optical observations related to these “cirrus” clouds are discussed. The clouds are excellently suitable for studies of grain properties and of the surrounding radiation field.
openaire   +2 more sources

Tropical Cirrus in Global Storm‐Resolving Models: 2. Cirrus Life Cycle and Top‐of‐Atmosphere Radiative Fluxes

Earth and Space Science, 2022
Cirrus clouds of various thicknesses and radiative characteristics extend over much of the tropics, especially around deep convection. They are difficult to observe due to their high altitude and sometimes small optical depths. They are also difficult to
S. M. Turbeville, J. M. Nugent, T. P. Ackerman, C. S. Bretherton, P. N. Blossey   +4 more
doaj   +1 more source

A Novel Ice Cloud Optical Property Model for Passive and Active Remote Sensing Applications

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract A new broad‐spectrum ice cloud optical property model, namely the Passive‐Active Remote Sensing Consistent (PARSC) model, is developed to achieve consistency between passive and active sensor‐based ocean‐occurring ice cloud property retrievals.
J. Coy, P. Yang, K. Meyer, J. Riedi, X. Liu   +4 more
wiley   +1 more source

A modelling case study of a large-scale cirrus in the tropical tropopause layer [PDF]

Atmospheric Chemistry and Physics, 2016
We use the Weather Research and Forecast (WRF) model to simulate a large-scale tropical tropopause layer (TTL) cirrus in order to understand the formation and life cycle of the cloud.
A. Podglajen, R. Plougonven, A. Hertzog, B. Legras   +3 more
doaj   +1 more source

Linkage Between Atmospheric Rivers and Overshooting Convection and Their Roles on UTLS Water Vapor During the North American Monsoon: Insight From DCOTSS

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract Overshooting convection significantly impacts the composition of the upper troposphere and lower stratosphere (UTLS), yet its linkage to Atmospheric Rivers (ARs) remains poorly understood. This study investigates how ARs modulate environmental conditions and moisture distribution associated with overshooting convection in the central and ...
Ju‐Mee Ryoo, Kenneth Bowman, Rei Ueyama, Chuntao Liu, Cameron R. Homeyer, Jessica Smith, Jonathan M. Dean‐Day, T. Paul Bui   +7 more
wiley   +1 more source

The impact of mineral dust on cloud formation during the Saharan dust event in April 2014 over Europe [PDF]

Atmospheric Chemistry and Physics, 2018
A regional modeling study on the impact of desert dust on cloud formation is presented for a major Saharan dust outbreak over Europe from 2 to 5 April 2014.
M. Weger, B. Heinold, C. Engler, C. Engler, U. Schumann, A. Seifert, R. Fößig, C. Voigt, C. Voigt, H. Baars, U. Blahak, S. Borrmann, S. Borrmann, C. Hoose, S. Kaufmann, M. Krämer, P. Seifert, F. Senf, J. Schneider, I. Tegen   +19 more
doaj   +1 more source