SSS ice: Einstein SSS ice absorption. The Einstein Observatory SSS ice absorption. par1 ice thickness parameter.
NASA Website
Page 1. " SSS ice: Einstein SSS ice absorption. The Einstein Observatory SSS ice absorption. par1 ice thickness parameter.
Recent measurements of the infrared (IR) absorption coefficient of CH and CD capsules differ significantly from earlier estimated values from thin flat samples. The optimum wavelength for IR enhanced layering of DT and D{sub 2} ice layers inside of a NIF scale hohlraum depends on the relative ice and capsule ...
Energy Citations Database
The ultrafast dynamics of HDO:D2O ice Ih at 180 K is studied by midinfrared ultrafast pump-probe spectroscopy. The vibrational relaxation of HDO:D2O ice is observed to proceed via an intermediate state, which has a blueshifted absorption spectrum. Polarization resolved measurements reveal that the intermediate state is part of the ...
PubMed
The reflection, absorption, and transmission of light at visible and near-infrared wavelengths by snow and ice covers is important for a number of geophysical problems. The focus of this paper is on the reflection and transmission of light by spatially inhomogeneous and temporally varying sea ice covers. This is investigated using a ...
... OF THE HYDROGEN BOND POTENTIAL ... Descriptors : *HYDROGEN, *ICE, *INFRARED ... ABSORPTION, CHEMICAL BONDS, FUNCTIONS ...
DTIC Science & Technology
The 3250/cm 'ice' band observed in absorption and polarization in interstellar spectra is studied in
NASA Technical Reports Server (NTRS)
... COATINGS, ICE, CYLINDRICAL BODIES, ALUMINUM, ABSORPTION SPECTRA, BLACKBODY RADIATION, DETERMINATION, EMISSIVITY ...
Ice Cloud Bulk Scattering and Absorption Models: Refinement through ... of existing numerical models for computing the optical properties of ice crystals, ...
Icing scaling tests were performed in the NASA Glenn Icing Research Tunnel to evaluate a new scaling
This final report includes five reprints and preprints of papers associated with the modeling of cloud/radiation processes for large-scale clouds and tropical anvils. These papers present (1) a three-dimensional large-scale cloud model for testing the role of radiative heating and ice phase processes, (2) parameterization of the ...
Contents: Static pressure of sea ice; Method for predicting strength characteristics of ice cover; Experimental studies in an ice-research laboratory; Scale effect as indication of ice-breaking mechanism; Division of the Arctic Marine ice cover into regio...
National Technical Information Service (NTIS)
... Title : Selecting the Optical Constants of Water and Ice for Calculating the Characteristics of Scattering and Absorption of Radiation by Water and ...
AA > Atomic Absorption Spectrometer � Ancillary Description ... Argentine Program on Climatic and Environmental Studies by Means of Ice Cores. ...
Techniques for converting solar energy into mechanical energy for use in small-to-large scale refrigeration systems are examined. The systems considered included a Rankine cycle, 106 kW system coupled to 58 sq m of flat plate collectors, photovoltaic panels with storage in the form of ice, a positive ventilation and ice bank cooling ...
NASA Astrophysics Data System (ADS)
Infrared scattering and absorption properties ... and absorption data on the nonspherical ice crystals .... provide a means for the detection of small ice crystals ...
We show that long scale-length ablator roughness sets a limit to the enhanced IR layering power possible in a NIF ignition hohlraum. This limit can be more restrictive than the limit set by thermal conduction. High IR power absorption, characteristic of the ablator material, combined with ablator roughness can produce ice thickness ...
DOE Information Bridge
important role in the solar energy absorption and partitioning in the entire system. ... the absorption and distribution of solar energy in the ...
... melting due to absorption of solar radiation ... o Remove CTD sensor caps and verify that ... Arctic/Ice Deployments Winch/Tripod Apparatus Ice Tethered ...
The observed power law scaling of sea ice deformation can also be found in the model. However, the scaling exponent almost exclusively depends on the ...
Apr 29, 1997 ... Scale Model Icing Research Tunnel (SMIRT). ... icing on actual aircraft components as well as on models of airplanes and helicopters. ...
The comparison of ice accretion characteristics is an integral part of aircraft icing research. It is often necessary to compare an ice accretion obtained from a flight test or numerical simulation to one produced in an icing wind tunnel or for validation...
For a third year in a row, the Arctic sea-ice is receding in 2009 far beyond previous recorded summer minimum sea-ice extents. During IPY (2007-2008) in addition to a dramatic sea-ice retreat in the Arctic, we observed a contrasted situation represented by a large drop in Multi Year Ice (MYI) from 2007 to 2008 of ...
This book contains nine sections, each consisting of several papers. Some of the paper titles are: A large absorption heat pump; Integration of natural gas engine driven vapor recompression heat pumps into industrial processes; Heat pump applications at BP refinery in Gothenburg; and Large capacity heat pump using vacuum ice production as heat source.
Quantitative spectra of atmospheric ice Ih are presented for 3.4 to 15 micrometers, and absorptivity coefficients for ice and liquid water at 8 to 14 micrometers are presented and compared. A modified equation modeling contributions of water in the vapor,...
For ultra high energy (UHE) electromagnetic showers in a dense medium, radio frequency Cherenkov emission is enhanced due to the Askaryan effect. Present and future detectors such as RICE, ANITA, ARIANNA and the Askaryan Radio Array (ARA) exploit this effect to detect UHE neutrinos interacting with Antarctic ice. The radio frequency electromagnetic wave attenuation length (the ...
Radio echo sounding (RES) developed in the 1960s in response to the need for improved methods of depth sounding of ice sheets in Greenland and Antarctica. Unquestionably RES transformed our ability to image the interior and base of these great ice sheets and generated a range of new, exciting and fundamental studies of their characteristics and behaviour. ...
Sea ice forms in the Baltic Sea annually. Coastal and archipelago areas are covered by landfast ice, while further offshore the ice drifts under the influence of winds and currents. The length scale of the Baltic Sea basins is 100 km and the scale of the ice thickness is ...
Antifreeze proteins (AFPs) prevent uncontrolled ice formation in organisms exposed to subzero temperatures by binding irreversibly to specific planes of nascent ice crystals. To understand the thermodynamic driving forces and kinetic mechanism of AFP activity, it is necessary to characterize the hydration behavior of these proteins in solution. With this ...
Page 1. Scaling Theory Applied Far Infrared Absorption by Metal-Insulator Composite Materials ... infrared absorption by isolated metal particles' 3 ° ...
Contents: Global distribution of the sea ice margins; Small scale features and processes at the ice margins; Mesoscale oceanic features at the ice margins; Effects of the ice margins in modifying water masses; Meteorological effects associated with the ic...
This report represents the results from collaborative icing wind tunnel and flight test investigations of pneumatic deicing boot deicing performance. Also presented are the results of icing wind tunnel investigations into ice accumulations prior to activa...
... Descriptors : *HELICOPTER ROTORS, *ICE FORMATION, *WIND TUNNEL MODELS, SCALE MODELS, AERONAUTICS, HELICOPTERS, WIND ...
... Descriptors : *ICE, *RIVERS, *HYDRAULIC MODELS, SCALE MODELS, MODELS, FACILITIES, TEST METHODS, COLD REGIONS, ICE ...
A two-dimensional cirrus cloud model has been developed to investigate the interaction and feedback of radiation, ice microphysics, and turbulence-scale turbulence, and their influence on the evolution of cirrus clouds. The new features of the model include a detailed ice microphysical module for the prediction of ...
ecuted using cast replicas of the ice formations on full scale models. ... ing the fine details of the ice formations that it provided the ...
Hence dynamical modeling mainly involves specifying the large-scale deformation (plastic) behavior of ice-ice interactions between ice floes. ...
Apr 23, 1998 ... In the IRT, natural icing conditions are duplicated to test the effects of in-flight icing on actual aircraft components and on scale models of ...
Feb 18, 2005 ... Surrounded by winter snow and ice, melting seems like a good thing, but, on a global scale, the melting of ice sheets and glaciers is a sign ...
roughness characteristics appeared to scale with model size and with liquid- water ... roughness formed during icing tests in the NASA Lewis. Icing Research ...
The present note examines the large-scale relationship between deformation and ice production over the Arctic Ocean ice cover as depicted by the RGPS data ...
Apr 21, 2011 ... Researchers working in Antarctica have found evidence of large-scale ice making at the bottom of that continent's massive ice sheets.
A new radiation scheme, suitable for two-stream radiation transfer models, was developed for cirrus clouds. Analytical expressions were derived for the extinction and absorption coefficients and the asymmetry parameter. These are functions of the ice particle size distribution parameters, ice particle shapes, and wavelength. The ...
We have used the Mars Global Surveyor Thermal Emission Spectrometer (MGS TES) data to map water ice clouds in the Martian atmosphere in the latitude range -60 to +60 over a period of three Martian years. We have used the same method we have previously used on Viking Infrared Thermal Mapper data in order to allow direct comparison of the cloud behavior in the Viking and MGS ...
This article presents a retrieval method and a statistical analysis of the bulk micropysical properties of semi-transparent ice clouds using the Atmospheric Infrared Sounder (AIRS). Global and long-term coverage provides information on the effective diameter (De) and habits of ice crystals in relation with their environment, ice water ...
The Ruff method with matched scale and reference velocity was used to determine appropriate one half-scale test conditions to simulate a full-size icing encounter for an NACA 23012 wing section protected with a pneumatic boot de-icing system. Intercycle i...
Study objectives were to evaluate the equations governing the ice-accretion process to identify proposed scaling parameters and to conduct tests to determine which, is any, of the proposed methods produced scale ice accretions. Study results include: (1) ...
ice � frazil ice � tran- sition zone � conge- lation ice � under- water ice Depth, Time m scale 0.1 0 of the incoming shortwave irradiative flux is penetrating into the lake ice surface and the underlying water budget of the ice cover and the ...
E-print Network
... Figure 1 shows the absorption coefficient (defined in Section 2) of ice and water near water's freezing temperature (273K) from the ultraviolet to the ...
... absorption, X ray photoelectron spectroscopy and ultraviolet optical spectroscopy, nuclear magnetic resonance and electron spin resonance. ...
... absorption, X-ray photoelectron spectroscopy and ultraviolet optical spectroscopy, nuclear magnetic resonance and electron spin resonance. ...
The near infrared reflectivity of ice clouds is computed and compared to observations of Venus. The difficulty in making an exact correction for CO2 absorption ...
for fairly large regions. A much more careful analysis of the spectra showed there was water ice absorption. But where was it likely to be on the surface? To help show the...
Science.gov Websites
... the growth of an ice sheet and the effect of solar energy absorbed on the ... It is estimated that 105,000 lb of industrial slag of dark color (absorptivity ...
... As the ice advances, the hydrophones are left in solid ice which has a lov, ab ... dB/cm, an upper limit to the skeletal layer absorption coefficient. I ...
... ice core between 70- and 1360-m depths were analyzed for their Na(+), K(+), Ca(2+) and Mg(2+) contents by atomic absorption spectroscopy. ...
Dec 18, 2003 ... Produced By: California Institute of Technology ... Other absorption dips are produced by water ice (blue) and carbon dioxide ice (green). ...
... ICING TESTS OF FULL-SCALE LEADING-EDGE SECTIONS By Uwe H. von Glahn ... ICING TESTS OF FULL-SCALE LEADING-EDGE SECTIONS 2 ...
... Title : Major Scaling Problems with Ice Model Testing of Ships,. Corporate Author : DOME PETROLEUM LTD CALGARY (ALBERTA). ...
... While river ice formations may be complex at the small scale of tens of meters or less, on a larger scale they are often sufficiently uniform to enable ...
... Accession Number : ADA045869. Title : Experimental Scaling Study of an Annular Flow Ice-Water Heat Sink,. Corporate ...
The effect of ice accretion on a 1/12-scale complete aircraft model of a business jet was studied in
... 11 3.3 Total Water-Catch Scaling ... 20 9. Comparison of Measured and Calculated Surface Temperatures in ... of ice on aircraft surfaces occurs during ...
However, the scale tests did not reproduce the location and number of feather rows seen in the reference tests aft of the main ice shape. Many of the differences ...
CIRES. Parameterization and Scaling of Arctic Ice Conditions in the Context of Ice-Atmospheric Processes. FINAL REPORT. NASA: NAGW-2598 ...
Phosphate is an important and sometimes limiting nutrient for primary production in the oceans. Because of deforestation and the use of phosphate as a fertilizer changes in the phosphate cycle have occurred over the last centuries. On longer time scales, sea level changes are thought to have also caused changes in the phosphate cycle. Analyzing phosphate concentrations in ...
No known body in the Solar System has a spectrum redder than that of object 5145 Pholus. We use Hapke scattering theory and optical constants measured in this laboratory to examine the ability of mixtures of a number of organic solids and ices to reproduce the observed spectrum and phase variation. The primary materials considered are poly-HCN, kerogen, Murchison organic ...
Mishchenko, M.I., 1991: Infrared absorption by shape distributions of NH3 ice particles: An application to the Jovian atmosphere. Earth, Moon, and Planets , 53, ...
Mountain (Figure 5). Absorption due to ice in snow at Mammoth Mountain and to the higher elevation in the northwest. At this late spring date, absorption due to ...
Oct 23, 2010 ... Apparent absorption of solar spectral irradiance in heterogeneous ice clouds . J GEOPHYS RES-ATMOS. 2010;115 12. ...
... Enderby Land have been revealed by means of newly developed analytical techniques such as atomic absorption spectrophotometry and isotope ...
The near-infrared reflectance spectrum of Saturn's satellite Phoebe shows a broad absorption band at
absorption within cirrus clouds by accounting for particulate morphology and orientation, size distribution, and vertical inhomogeneity of ice crystals. ...
... Abstract : Laser beam propagation through the earth's atmosphere is influenced by absorption and scattering by ice crystals as occur in cirrus ...
... 2 degrees) and the calculation of the ... OCEAN), HEAT FLUX, EVAPORATION, CONDENSATION ... ICE, SOLAR RADIATION, MELTING, ABSORPTION ...
Electrically charged particles such as electrons are common in our world. In contrast, no elementary particles with a net magnetic charge have ever been observed. After a recent discovery that magnetic monopoles can emerge in a system of magnetic dipoles [1], much attention has been paid to the behavior of magnetic monopoles in artificial spin ice, arrays of ...
Abstract: This data set of the Arctic Ocean sea ice cover is derived from ... 3) Ice Age and Thickness a record of the area, age and thickness of new ice ...
Oct 27, 2010 ... The 4 types of products are: ice motion, ice deformation, ice age and thickness, and radar backscatter. The primary data source for the analysis ...
Abstract: This data set of the Arctic Ocean sea ice cover is derived from radar ... 3) Ice Age and Thickness a record of the area, age and thickness of new ice ...
The 4 types of products are: ice motion, ice deformation, ice age and thickness, and radar backscatter. The primary data source for the analysis is the Synthetic ...
This monograph reviews essential aspects of sea ice dynamics on the geophysical scale and discusses the role of ice dynamics in air-sea-ice interaction. The review is divided into the following components: (a) a discussion of the momentum balance describi...
Large-scale profiling of the thickness of freshwater and sea ice is important for understanding the dynamics of a sea ice covers, interpreting satellite microwave imagery, and predicting air-sea heat exchange or the bearing capacity of an ice cover. A pra...
Eighty-five ice samples taken from the Byrd Station, Antarctica, ice core were analyzed for Na(+), K(+), Ca(2+), and Mg(2+) concentrations by atomic absorption spectroscopy. The depth measured was from 168 to 2090 m.
An elastic-plastic sea ice dynamics constitutive model is reviewed. A nonassociated flow rule is discussed. Material strength is estimated by equating the work done by large-scale stresses during deformation to small-scale sinks: gravitational potential e...
Oct 6, 2008 ... In the F1 tests, a full-scale NACA-23012 airfoil was fitted with ice shapes made from molds of ice accreted on a similar airfoil model in ...
A set of simple scaling formulas related to ice sheet evolution is derived from the dynamic and thermodynamic equations for ice and is used to consider two common situations: (1) when we wish to estimate potential ice sheet characteristics given the prescribed net snow accumulation over an area; and (b) when we ...
Snow is a scattering-dominated medium whose scattering is independent of wavelength at 350-600 nm. The attenuation of solar radiation in snow can be used to infer the spectral absorption coefficient of pure ice, by reference to a known value at 600 nm. The method is applied to clean Antarctic snow; the absorption minimum is at 390 nm, ...
Recent thinning of the perimeter of the Greenland ice sheet has prompted several studies that are focused on identifying possible mechanisms. Surface melting in the ablation zone is known to be highly sensitive to changes in the surface albedo. However, explanations for the variable albedo of the ablation zone in Greenland have not yet been established because ground ...
... atomic-scale views of phenomena such as the melting of ice are based on real molecular dynamics ...
NSF Publications Database
Through the examination of small-scale geologic features potentially related to water and ice in the
