Results 41 to 50 of about 4,670 (221)

An overview of the microphysical structure of cirrus clouds observed during EMERALD-1

, 2004
High-resolution ice microphysical, turbulence, heat and water vapour flux data in cirrus clouds were collected by the Airborne Research Australia’s (ARA) Egret Grob 520T research aircraft during the first EgretMicrophysics with Extended Radiation and ...
Busen, Reinhold, D. Figueras-nieto, T. W. Choularton, J. Hacker, Cook, C., Flynn, M, Whiteway, J, Choularton, T. W.; id_orcid, M. W. Gallagher, P. J. Connolly, Flynn, M., Hacker, Jorg Michael, Gallagher, M.W., Whiteway, J., Figueras-Nieto, D, Conolly, P.J., Bower, K.N., Gallagher, Martin W.; id_orcid, Bower, K. N.; id_orcid, Hacker, J., Cook, C, Figueras-Nieto, D., Connolly, P. J., Choularton, T W, J. Whiteway, Bower, K N, Busen, G, Figueras-Nieto, Daniel, Busen, R., M. Flynn, R. Busen, Connolly, P J, K. N. Bower, Choularton, T.W., Gallagher, M W, Flynn, M.; id_orcid, C. Cook   +36 more
core   +1 more source

Parameterization of single scattering properties of mid-latitude cirrus clouds for fast radiative transfer models using particle mixtures [PDF]

, 2008
A new parameterization of single scattering properties has been developed for mid latitude cirrus clouds for application to weather prediction and global circulation models. Ice clouds are treated as a mixture of ice crystals with various habits.
Bozzo, Alessio, Maestri, Tiziano, Rizzi, Rolando, Tosi, Ennio   +3 more
core   +1 more source

On the signature of the cirrus twilight zone

Environmental Research Letters, 2014
Cirrus clouds are known to play a key role in the climate system, but their overall effect on Earth’s radiation budget is not yet fully quantified. The uncertainties are, in part, due to ambiguities in cirrus extent or coverage. Here we show that despite
Uri Wollner, Ilan Koren, Orit Altaratz, Lorraine A Remer   +3 more
doaj   +1 more source

Universality in snowflake aggregation [PDF]

, 2004
Aggregation of ice crystals is a key process governing precipitation. Individual ice crystals exhibit considerable diversity of shape, and a wide range of physical processes could influence their aggregation; despite this we show that a simple computer ...
Field, P. R., Ball, Robin, Heymsfield, Andrew J., Westbrook, C. D.   +3 more
core   +1 more source

The effects of warm-air intrusions in the high Arctic on cirrus clouds [PDF]

Atmospheric Chemistry and Physics
Warm-air intrusions (WAIs) are responsible for the transportation of warm and moist air masses from the mid-latitudes into the high Arctic (> 70° N). In this work, we study cirrus clouds that form during WAI events (WAI cirrus) and during undisturbed ...
G. Dekoutsidis, M. Wirth, S. Groß
doaj   +1 more source

PROPERTIES OF GALACTIC CIRRUS CLOUDS OBSERVED BY BOOMERANG [PDF]

The Astrophysical Journal, 2010
The physical properties of galactic cirrus emission are not well characterized. BOOMERanG is a balloon-borne experiment designed to study the cosmic microwave background at high angular resolution in the millimeter range. The BOOMERanG 245 and 345GHz channels are sensitive to interstellar signals, in a spectral range intermediate between FIR and ...
VENEZIANI, M, ADE P. A. , R, BOCK J. , J, BOSCALERI, A, CRILL B. , P, DE BERNARDIS, P, DE GASPERIS, GIANCARLO, DE OLIVEIRA COSTA, A, DE TROIA, GRAZIA, DI STEFANO, G, GANGA K. , M, null, J, W. , C, KISNER T. , S, LANGE A. , E, MACTAVISH C. , J, MASI, S, MAUSKOPF P. , D, MONTROY T. , E, NATOLI, PAOLO, NETTERFIELD C. , B, PASCALE, E, PIACENTINI, F, PIETROBON, D, POLENTA, G, RICCIARDI, S, ROMEO, G, RUHL J. , E.   +27 more
openaire   +4 more sources

I. Variability of the Outgoing Thermal IR Spectra and Its Application in GCM Validation. II. The Detection of Cloud/Aerosol in the Outgoing Thermal IR Spectra [PDF]

, 2004
The theme of this thesis is studying the outgoing thermal IR spectra of Earth and Mars. It is divided into two parts: the first part (Chapters 1-4) is focused on the variability seen in the outgoing thermal IR spectra and its application in validating ...
Huang, Xianglei
core   +1 more source

Closed-form approximations to the Error and Complementary Error Functions and their applications in atmospheric science. [PDF]

, 2007
The Error function, and related functions, occurs in theoretical aspects of many parts of atmospheric science. This note presents a closed-form approximation for the error, complementary error, and scaled complementary error functions, with maximum ...
MacKenzie, Rob, Ren, Chuansen, C. Ren, A. R. MacKenzie   +3 more
core   +1 more source

Thin and subvisible cirrus and contrails in a subsaturated environment [PDF]

Atmospheric Chemistry and Physics, 2011
The frequency of occurrence of cirrus clouds and contrails, their life time, ice crystal size spectra and thus their radiative properties depend strongly on the ambient distribution of the relative humidity with respect to ice (RH<sub>ice< ...
M. Kübbeler, M. Hildebrandt, J. Meyer, C. Schiller, Th. Hamburger, T. Jurkat, A. Minikin, A. Petzold, M. Rautenhaus, H. Schlager, U. Schumann, C. Voigt, P. Spichtinger, J.-F. Gayet, C. Gourbeyre, M. Krämer   +15 more
doaj   +1 more source

Wildebeest movement responses to electric conservation fencing in the African Savannah ecosystem

Conservation Science and Practice, EarlyView.
These findings provide GPS‐based empirical evidence of how a newly constructed electric conservation fence alters migratory wildebeests, and show that effects are context‐dependent across habitat type, time of day, and distance to the boundary. While such fences can reduce human–wildlife conflict and support conservation goals, they must be carefully ...
Michael Honorati Kimaro, Kristen Denninger Snyder, Noel Latiaeli Mbise, Grant C. Hopcraft, Victor Alexander Kakengi, Han Olff   +5 more
wiley   +1 more source