Sentences with word «reflectivity»

Reflectivity refers to how much light or other forms of energy are bounced back or reflected off a surface. It is a measure of the ability of an object or material to reflect light. A higher reflectivity means that the surface reflects more light, making it appear brighter, while a lower reflectivity means that the surface absorbs more light, making it appear darker. Full definition
So, what you do is measure the change of reflectivity of the material,» Dr. Man explained.
«It is a very good paper which provides valuable new insights about the physical processes controlling the change in reflectivity of the Greenland ice sheet and specifically its darkening over time,» said Eric Rignot, a senior research scientist at NASA's Jet Propulsion Laboratory who studies ice sheets but was not involved with the new study.
The veterinarian looks for the increased reflectivity of the retina, and a decrease in the numbers and size of blood vessels supplying the retina.
An invested concentration in surface reflectivity as its own medium is present in much of Hodges» work — glass, gold and polished stainless steel — and allows for multiple readings, broadening experiential possibilities and disrupting notions of a fixed site.
We retrieve CO2 only over land due to the low reflectivity of water in the near - infrared spectral region used to retrieve CO2 information from the satellite spectra of reflected solar radiation.
By comparing the optical properties of red snow to clean snow, they estimated that algal blooms could reduce reflectivity by 13 % over the melting season.
Moreover, the linear relationship that the Zhai study fits between the seasonal variability derived relationship of low cloud reflectivity with SST and ECS is dominated by «bad» models that are inconsistent with the observational constraint.
Dr. Lee Hawkness - Smith, Met Office @Reading - Assimilation of Radar Reflectivity in high resolution NWP.
The viewing angles were impressive, too, as there's a new anti-reflective coating that cuts down on reflectivity by 40 percent versus the last iPad Pro.
Also, if Carta isn't scalable, which had the main advantage of higher reflectivity for use with the front - light, you might be able to use other e-ink screens instead, like Mobius and still have a good, even light spill, enabling larger screens while still keeping the benefits of higher density, etc..
It is also unsound to treat measures that reduce average temperature by increasing reflectivity as physically equivalent to moderating greenhouse gas concentrations.
In a study coordinated by the Finnish Meteorological Institute, the computation of snow reflectivity for solar radiation (aka.
Related Highlights: Double Bonus: Win - Win for Atmospheric Particle Properties; Fast and Rigorous: Finding Surface Reflectivity by Looking Up at Clouds; Lord of the Wings: Elevated Particles a Rising Star.
Other factors than warming that could have temporarily lowered Greenland ice reflectivity include the effect of major volcanic eruptions or wild fires.
US scientists propose that artificially introducing aerosols to the atmosphere will brighten clouds and increase reflectivity which could help defend the Earth from global warming.
New display technology Higher contrast and better reflectivity means whites are whiter and blacks are blacker
The continent is almost completely covered in snow year round so the south pole maintains its high reflectivity during the summer months.
Intrinsic differences in reflectivity between the metal segments allow individual particles to be identified by conventional optical microscopy.
Neutron reflectivity measurements were used to follow and quantify the deposition and functionalisation of the film with the fluorophores.
Lead researcher Jason Heikenfeld says the display can create 1,000 colors, reflects about 55 percent of ambient light and could reach 85 percent reflectivity.
The iPad Mini 4 display breaks two records and even beats the iPad Air 2 in screen reflectivity tests.
Their flea collars are affordable, repel and kill, long - lasting - providing up to 7 months of water - resistant protection, and it comes with perks like reflectivity so your dog can remain visible in the dark, which is super useful if you usually go out on walks at night.
New Balances 1224 shoes ($ 140) feature a shock - absorbing, moisture - wicking, and odor - resistant interior plus 360 - degree reflectivity — the light - up materials are strategically placed to catch light from any angle.
«Every observational record exhibits a decline in cloud amount or albedo [reflectivity] at mid-latitudes in both hemispheres that is nearly always statistically significant,» the study notes.
From the specular reflectivity the electron density can be obtained which is directly correlated with the coverage of a submonolayer.
A product page, which was spotted by Engadget and subsequently removed, notes that the device integrates a new display with higher contrast and improved reflectivity, along with a new lighting system to enhance readability in low - light environments.
The results showed no significant change in the quantity of black carbon deposited for the past 60 years or the quantity and mineralogical makeup of dust compared to the last 12,000 years, meaning that deposition of these light absorbing impurities is not a primary cause of reflectivity reduction or surface melting in the dry snow zone.
But just as the noise from other bar patrons can still drown out a conversation even if the music is muted, researchers are unable to control for other things that affect reflectivity, such as widespread snowfall, or the effect an El Niño year might have on cloud formation.
That's what we call a descending reflectivity core, or DRC.
The data analysis emerging from VORTEX2 also identifies another possible trigger, a «descending reflectivity core
The new moon: Blue shows water, red indicates an iron - based mineral, and green shows reflectivity in an image from India's first lunar mission.
Plants have higher or lower reflectivity depending on things like the shape and size of their leaves and how waxy they are.
The study's results suggest the ice sheet hasn't lost as much reflectivity as previously thought, and that black carbon and dust concentrations haven't increased significantly and are thus not responsible for darkening on the upper ice sheet.
The combined effect of changes in sea ice, glaciers, and the Greenland ice sheet is also conspiring to reduce the overall reflectivity of the Arctic in the summer, when the sun is ever - present, said Martin Jeffries, NOAA program officer and Arctic science advisor at the Office of Naval Research, and one of the three editors of the report card.
Assuming surface reflectivities ranging from 4 % (like the darkest known KBOs), to 15 % (like many KBOs), to 35 % (like Charon), this is what we find:
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