Results 101 to 110 of about 4,670 (221)

Observing cirrus formation and decay with METEOSAT

open access: yes, 2009
Cirrus clouds have a substantial impact on net radiation and therefore also on climate, but the physical processes involved in cirrus formation and decay are not very well represented in climate and weather prediction models. In-situ formation of natural
Graf, Kaspar   +4 more
core  

Changes in cirrus cloudiness and their relationship to contrails

open access: yes, 2001
Condensation trails, or contrails, formed in the wake of high-altitude aircraft have long been suspected of causing the formation of additional cirrus cloud cover.
Doelling, D.R.   +11 more
core  

Changes in Daytime Cirrus Properties From the ISCCP‐H Data Set and Their Impacts on the Radiation Energy Budget

open access: yesEarth and Space Science
The change in clouds during the day is critical to the Earth's energy balance and climatic evolution. However, there have been relatively few studies on cloud variations at daily timescales, owing to limitations of ground‐ and satellite‐observations ...
Meihua Wang   +5 more
doaj   +1 more source

Climatology of Cirrus Clouds over Observatory of Haute-Provence (France) Using Multivariate Analyses on Lidar Profiles

open access: yesAtmosphere
This study aims to achieve the classification of the cirrus clouds over the Observatory of Haute-Provence (OHP) in France. Rayleigh–Mie–Raman lidar measurements, in conjunction with the ERA5 dataset, are analyzed to provide geometrical morphology and ...
Florian Mandija   +4 more
doaj   +1 more source

The two faces of cirrus clouds [PDF]

open access: yes, 2010
Abstract. Low ice crystal concentration and sustained in-cloud supersaturation, commonly found in cloud observations at low temperature, challenge our understanding of cirrus formation. Heterogeneous freezing from effloresced ammonium sulfate, glassy aerosol, dust and black carbon are proposed to cause these phenomena; low updrafts however is required ...
D. Barahona, A. Nenes
openaire   +1 more source

Cirrus cloud properties over Ny-Alesund as retrieved from lidar measurements (2011-2020)

open access: yes, 2021
The present dataset reports the properties of cirrus clouds over the research site of Ny-Alesund, Svalbard, as retrieved from lidar measurements from 2011 to 2020.
Ritter, Christoph, Nakoudi, Konstantina
core   +1 more source

Contrail and Cirrus Observations over Europe from 6 Years of NOAA-AVHRR Data

open access: yes, 2002
Thin ice clouds – cirrus and contrails – are analysed in a long-term 1 km data set from the Advanced Very High Resolution Radiometer (AVHRR). Here twice daily data received at DLR Oberpfaffenhofen covering most of Europe over the full lifetime of the ...
Meerkötter, R.   +3 more
core  

Radiative effect of thin cirrus clouds in the extratropical lowermost stratosphere and tropopause region [PDF]

open access: yesAtmospheric Chemistry and Physics
Cirrus clouds play an important role in the radiation budget of the Earth; nonetheless, the radiative effect of ultra-thin cirrus clouds in the tropopause region and in the lowermost stratosphere remains poorly constrained.
R. Spang, R. Müller, A. Rap
doaj   +1 more source

Intercomparison of multiple years of MODIS, MISR and radar cloud-top heights

open access: yes, 2005
International audienceRadar cloud-top heights were retrieved at both the Chilbolton Facility for Atmospheric and Radio Research, UK (CFARR) and the ARM Southern Great Plain site, USA (SGP), using millimetre wave cloud radars and identical algorithms. The
Clothiaux, EE   +14 more
core   +1 more source

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