mesospheric clouds
Impact of the January 2012 solar proton event on polar mesospheric clouds
... Abstract We use data from the Aeronomy of Ice in the Mesosphere mission and simulations using the Whole Atmosphere Community Climate Model to determine the impact of the 23 – 30 January 2012 solar proton event (SPE) on ...
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First simultaneous rocket and radar detections of rare low summer mesospheric clouds
... of mesospheric NLC/PMSE particles had previously been discarded with respect to Na contamination because there is not enough contaminating material (Vondrak et ...
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Tomographic retrieval of water vapour and temperature around polar mesospheric clouds using Odin-SMR
... Degenstein, D. A., Lloyd, N. D., and McDade, I. C.: Mesopause temperatures during the polar mesospheric cloud season, Geo- phys. Res. Lett., 38, L11803, doi:10.1029/2011GL047437, 2011. Sica, R. J., Izawa, M. R. ...
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Albedo-Ice Regression method for determining ice water content of polar mesospheric clouds using ultraviolet observations from space
... albedo, whereas there is no consistent bias in the IWC (AIR) value compared to the operational product. However, for both quantities the interannual changes between the AIR and OP results agree very well. This is ...
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Noctilucent clouds observed from the ground: sensitivity to mesospheric parameters and long term time series
... noctilucent clouds in the regions of Moscow (Russia), Vilnius (Lithuania), and La Ronge (Canada) are ...noctilucent clouds, are ...on mesospheric temperature and humidity, we estimate sensitivity of ...
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Ecologically Important Reactions and Phenomena in the Mesosphere between the Two Global Ozone Layers
... Noctilucent clouds (NLC) are cloud-like phenomena so faint that they can only be observed visually during twilight hours ...these clouds are termed polar mesospheric clouds (PMCs) and have ...
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The investigation of noctilucent clouds and other mesospheric phenomena using ground-based instrumentation and rockets
... The CAMP campaign was conducted at Esrange (67.9°N, 21.4°E), Kiruna, Sweden. The rocket measurements in CAMP were supported by ground-based, aeroplane, and satellite remote sensing experiments. Importantly for CAMP, ...
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The near-global mesospheric potassium layer: Observations and modeling
... Abstract The meteoric metal layers act as unique tracers of chemistry and dynamics in the upper atmosphere. Existing lidar studies from a few locations show that K exhibits a semiannual seasonality (winter and summer ...
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First global observations of the mesospheric potassium layer
... Figure 4a illustrates the fi rst near-global observations of the K layer. This demonstrates that the semiannual variability seen previously at extratropical locations is, in fact, global in extent, except at very high ...
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The crystal structure of ice under mesospheric conditions
... sospheric clouds are predominantly composed of crystalline ice, but cannot rule out a small fraction of cloud mass being comprised of amorphous ice (Hervig and Gordley, ...in mesospheric clouds, ...
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Numerical simulations of a shock interacting with multiple magnetized clouds
... Previous work examining the MHD interaction of a shock with a single cloud found that the plasma β is low where the flow is com- pressed, rather than the magnetic field being turbulently amplified. The two-cloud and ...
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Big Data in Research and Education
... Broad Overview: Data Deluge to Clouds Clouds Grids and HPC Cloud applications Analytics and Parallel Computing on Clouds and HPC Data Analytics Architectures Data Science and Data Analyt[r] ...
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Impacts of a sudden stratospheric warming on the mesospheric metal layers
... by clouds while the other instrument still received ...correct mesospheric temperatures measured by the Na lidar during the entire 17-day period discussed in this ...
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Technology Futures for ACES: Clouds Web2 0 and Multicore
... Clouds can be built from Grids but will hide this from user Clouds designed to build 100 times larger data centers Clouds support green computing by supporting remote location where oper[r] ...
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Detecting cloud contamination in passive microwave satellite measurements over land
... The objective of this study is to develop a method that in- dicates a cloud–rain contamination on the passive microwave (MW) observations over land for different ranges of frequen- cies available on board the successive ...
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Meteoric Smoke Deposition in the Polar Regions: A Comparison of Measurements With Global Atmospheric Models
... Nucleation of polar stratospheric clouds (PSCs) has been proposed to occur on MSPs (Voigt et al., 2005). If the resulting nitric acid-trihydrate (NAT) particles grow large enough, they can precipitate through the ...
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Clouds will win!
... • Clouds are a major industry thrust with a growing fraction of IT expenditure that IDC estimates will grow to $44.2 billion direct investment in 2013 while 15% of IT investment in 2011 will be related to cloud ...
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Simulation of Firewall Security of Cloud Server using Approach on Internet Connected System by Network Enumeration
... public clouds services can implement a certain level of security but private clouds - using techniques such as distinct pools of resources with access restricted to connections made from behind one ...
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Haunting clouds
... presences’; a form that is moving and vital but all at once signifies the inert and dead. There is a ghostly residue of past catastrophes and past celebrations in the nuclear cloud played out in photographs, postcards, ...
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Clouds and FutureGrid
... • FutureGrid will build a robustly managed simulation environment or testbed to support the development and early use in science of new technologies at all levels of the software stack: [r] ...
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