Results 51 to 60 of about 162,612 (201)

Sling effect in collisions of water droplets in turbulent clouds

open access: yes, 2006
We describe and evaluate the contribution of sling effect into the collision rate of the same-size water droplets in turbulent clouds. We show that already for Stokes numbers exceeding 0.2 the sling effect gives a contribution comparable to Saffman ...
Alain Pumir   +33 more
core   +1 more source

Quantifying wet scavenging processes in aircraft observations of nitric acid and cloud condensation nuclei [PDF]

open access: yes, 2006
Wet scavenging is an important sink term for many atmospheric constituents. However, production of precipitation in clouds is poorly understood, and pollutant removal through wet scavenging is difficult to separate from removal through dry scavenging ...
A. Stohl   +49 more
core   +1 more source

ELemental Abundances of Planets and Brown Dwarfs Imaged around Stars (ELPIS). II. The Jupiter-like Inhomogeneous Atmosphere of the First Directly Imaged Planetary-mass Companion 2MASS 1207 b

open access: yesThe Astronomical Journal
2MASS 1207 b, the first directly imaged planetary-mass companion, has been instrumental in advancing our understanding of exoplanets and brown dwarfs over the past 20 yr.
Zhoujian Zhang   +3 more
doaj   +1 more source

A comparison of chemistry and dust cloud formation in ultracool dwarf model atmospheres [PDF]

open access: yes, 2008
The atmospheres of substellar objects contain clouds of oxides, iron, silicates, and other refractory condensates. Water clouds are expected in the coolest objects.
A. Ackerman   +99 more
core   +2 more sources

Atmospheric brown cloud report

open access: yesEos, Transactions American Geophysical Union, 2008
The combined effects of human‐ made atmospheric brown clouds (ABCs) and greenhouse gases in the atmosphere are having broad‐based impacts, including causing some cities to get darker, contributing to faster melting of some glaciers, masking the effects of climate change, and having negative effects on agriculture and air quality, according to a 13 ...
openaire   +1 more source

Global atmospheric particle formation from CERN CLOUD measurements [PDF]

open access: yesScience, 2016
Observations made in the CLOUD chamber at CERN illuminate atmospheric particle formation.
Dunne, Eimear M.   +58 more
openaire   +5 more sources

Radiative Effects of Water Clouds on Heat, Cloud Microphysical and Surface Rainfall Budgets Associated with Pre-Summer Torrential Rainfall

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2014
This study investigates thermal, cloud microphysical and surface-rainfall responses to the radiative effects of water clouds by analyzing two pairs of two-dimensional cloud-resolving model sensitivity experiments of a pre-summer heavy rainfall event.
Jia Liu, Xinyong Shen, Xiaofan Li
doaj   +1 more source

INFERENCE OF INHOMOGENEOUS CLOUDS IN AN EXOPLANET ATMOSPHERE [PDF]

open access: yesThe Astrophysical Journal, 2013
We present new visible and infrared observations of the hot Jupiter Kepler-7b to determine its atmospheric properties. Our analysis allows us to 1) refine Kepler-7b's relatively large geometric albedo of Ag=0.35+-0.02, 2) place upper limits on Kepler-7b thermal emission that remains undetected in both Spitzer bandpasses and 3) report a westward shift ...
Demory, Brice-Olivier   +13 more
openaire   +5 more sources

Two-dimensional Models of Microphysical Clouds on Hot Jupiters. I. Cloud Properties

open access: yesThe Astrophysical Journal
We present a new two-dimensional, bin-scheme microphysical model of cloud formation in the atmospheres of hot Jupiters that includes the effects of longitudinal gas and cloud transport.
Diana Powell, Xi Zhang
doaj   +1 more source

Application of MODIS Products for Air Quality Studies Over Southeastern Italy

open access: yesRemote Sensing, 2010
Aerosol optical thicknesses (AOTs) by the MODerate Resolution Imaging Spetroradiometer (MODIS) on-board Aqua and Terra satellites, and ground-based measurements of PM10 mass concentrations, collected over three years (2006–2008) at two suburban sites ...
Maria Rita Perrone   +2 more
doaj   +1 more source

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