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Even small disturbances can trigger catastrophic hurricanes, researchers find（图）
small disturbances trigge catastrophic hurricanes researchers find
2020/5/29
In a developing hurricane, satellite images show thick white clouds clumping together, arms spinning around a central eye as it heads for the coast.Florida State University researchers have found...
Technique could help climate models sweat the small stuff
Technique climate models sweat the small stuff
2016/6/12
A team of physicists and mathematicians has come up with a statistical technique that puts the fine details back into computer simulations of large-scale phenomena like air circulation in the atmosphe...
The effect of reported high-velocity small raindrops on inferred drop size distributions and derived power laws
reported high-velocity small raindrops inferred drop size distributions derived power laws
2010/8/16
It has recently been shown that at high rainfall intensities, small raindrops may fall with much larger velocities than would be expected from their diameters. These were argued to be fragments of rec...
Climate model attractors:chaos,quasi-regularity and sensitivity to small perturbations of external forcing
Climate model attractors chaos quasi-regularity sensitivity small perturbations external forcing
2009/11/12
In this paper we discuss some theoretical results obtained for climate models (theorems for the existence of global attractors and inertial manifolds, estimates of attractor dimension and Lyapunov exp...
Large- and small-scale turbulent spectra in MHD and atmospheric flows
Large- and small-scale turbulent spectra MHD atmospheric flows
2009/11/9
In the present review we discuss certain studies of large- and small-scale turbulent spectra in MHD and atmospheric flows performed by S. S. Moiseev and his co-authors during the last years of his lif...
On the importance of small ice crystals in tropical anvil cirrus
small ice crystals tropical anvil cirrus
2009/8/7
In situ measurements of ice crystal concentrations and sizes made with aircraft instrumentation over the past two decades have often indicated the presence of numerous relatively small (< 50 μm diamet...
Small scale density variations of electrons and charged particles in the vicinity of polar mesosphere summer echoes
variations of electrons charged particles polar mesosphere summer echoes
2009/3/11
We present small scale variations of electron number densities and particle charge number densities measured in situ in the presence of polar mesosphere summer echoes. It turns out that the small scal...
Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica
HONO emissions snow surfaces Browning Pass Antarctica
2009/1/12
Measured Fluxes of nitrous acid at Browning Pass, Antarctica were very low, despite conditions that are generally understood as favorable for HONO emissions, including: acidic snow surfaces, an abunda...
Small-scale gravity waves in ER-2 MMS/MTP wind and temperature measurements during CRYSTAL-FACE
Small-scale gravity waves ER-2 MMS/MTP wind temperature measurements CRYSTAL-FACE
2009/1/5
Lower stratospheric wind and temperature measurements made from NASA's high-altitude ER-2 research aircraft during the CRYSTAL-FACE campaign in July 2002 were analyzed to retrieve information on small...
Small-scale mixing processes enhancing troposphere-to-stratosphere transport by pyro-cumulonimbus storms
Small-scale mixing processes troposphere-to-stratosphere transport pyro-cumulonimbus storms
2008/12/26
Deep convection induced by large forest fires is an efficient mechanism for transport of aerosol particles and trace gases into the upper troposphere and lower stratosphere (UT/LS). For many pyro-cumu...
In-situ observations and modeling of small nitric acid-containing ice crystals
In-situ observation nitric acid-containing ice crystals
2008/12/12
Measurements in nascent ice forming regions are very rare and help understand cirrus cloud formation and the interactions of trace gases with ice crystals. A tenuous cirrus cloud has been probed with ...
In this study, we measured the mobility distributions of cluster and intermediate ions with an ion spectrometer near a waterfall. We observed that the concentration of negative 1.5–10 nm ions was one-...
How small is a small cloud?
interplay aerosols clouds
2008/11/13
The interplay between clouds and aerosols and their contribution to the radiation budget is one of the largest uncertainties of climate change. Most work to date has separated cloudy and cloud-free ar...
Oligomer formation during gas-phase ozonolysis of small alkenes and enol ethers: new evidence for the central role of the Criegee Intermediate as oligomer chain unit
oligomer formation gas-phase ozonolysis small alkenes enol ethers
2008/11/7
An important fraction of secondary organic aerosol (SOA) formed by atmospheric oxidation of diverse volatile organic compounds (VOC) has recently been shown to consist of high-molecular weight oligome...
Neutron Activation Analysis of Atmospheric Aerosols from a Small Pacific Island Country: A Case of Suva, Fiji Islands
Suva Air Suspended particulates HPGe spectrometer
2016/3/30
A systematic study was developed to investigate the quality of air in Suva, the capital city of
Fiji Islands. This is the first work of its kind in the South Pacific Islands and was aimed at
charact...