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Tuesday, May 12, 2020 | History

2 edition of Solar altitude effects on ice albedo found in the catalog.

Solar altitude effects on ice albedo

S. J. Bolsenga

Solar altitude effects on ice albedo

by S. J. Bolsenga

  • 91 Want to read
  • 2 Currently reading

Published by Great Lakes Environmental Research Laboratory, Environmental Research Laboratories in Ann Arbor, Mich .
Written in English

    Subjects:
  • Ice.,
  • Albedo.,
  • Solar radiation.

  • Edition Notes

    StatementS.J. Bolsenga.
    SeriesNOAA technical memorandum ; ERL GLERL-25, (GLERL contribution ; no. 149), NOAA technical memorandum ERL GLERL -- 25., GLERL contribution -- no. 149.
    The Physical Object
    Pagination43 p. :
    Number of Pages43
    ID Numbers
    Open LibraryOL16108863M

    A review of snow and ice albedo and the development of a new solar zenith angle, cloud optical thickness, and snow depth. The parameterization is Gardner, A. S., and M. J. Sharp (), A review of snow and ice albedo and the development of a new physically based broadband albedo parameterization, J. Geophys. Res., , F, doi Cited by:   The summer sea ice is almost half what is used to be, exposing more ocean surface. The consequence is a change in the albedo due to a decrease in the Earth’s ability to reflect energy and an increase in its ability to absorb it. Modeling and estimates of albedo change have previously been used to access the impact of decreased sea ice on albedo.

      * The expansion in heat ingestion is an irregular atmosphere constraining, proportionate to including a specific measure of carbon dioxide to the climate. By using Orange County solar installers, it takes the average time milisec to convert t.   Like solar radiation in general, albedo values also vary across the globe with latitude but Earth’s average albedo is around 31%. For surfaces between the tropics (°N to °S) the average albedo is %. At the poles, it can be as high as 80% in some areas. This is a result of the lower sun angle present at the poles but also the Author: Amanda Briney.

    Explain that this phenomena is called the ice albedo feedback effect. A feedback effect or feedback loop is a loop within a system that continually increases (“positive feedback”) or decreases (“negative feedback”) the effects of the system. On Earth surfaces, solar energy that is absorbed is later emitted toward its surroundings as Size: KB. Earth has an average albedo of % whereas the albedo of the Moon is about 12%. In astronomy, the albedo of satellites and asteroids can be used to infer surface composition, most notably ice content. Enceladus, a moon of Saturn, has the highest known albedo of any body in the solar system, with 99% of EM radiation reflected.


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Solar altitude effects on ice albedo by S. J. Bolsenga Download PDF EPUB FB2

Solar altitude effects on ice albedo vi, 43 p. (OCoLC) Online version: Bolsenga, S.J. Solar altitude effects on ice albedo. Ann Arbor, Mich.: Great Lakes Environmental Research Laboratory, Environmental Research Laboratories, (OCoLC) Material Type: Government publication, National government publication, Internet.

Solar altitude effects on ice albedo. [S J Bolsenga; Great Lakes Environmental Research Laboratory.] Ice. Albedo. Solar radiation. Confirm this request. You may have already requested this item. Please select Ok if you would like to proceed with this request anyway. Book. Idea. The ice albedo effect is simply a name for how ice and snow reflect solar radiation, and thus help keep the Earth a cool Earth also tends to have more ice and snow, the ice albedo effect is an example of a positive climate a snow-covered area warms and the snow melts, the albedo decreases, more sunlight is absorbed, and the temperature tends to increase.

Albedo (/ æ l ˈ b iː d oʊ /) (Latin: albedo, meaning 'whiteness') is the measure of the diffuse reflection of solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident radiation, to 1, corresponding to a body that reflects all incident radiation.

Surface albedo is defined as the ratio of radiosity to the. Albedo also changes due to human interaction. Forests have lower albedo than topsoil; deforestation increases albedo.

Burning wood and fossil fuels adds black carbon to the atmosphere. Some black carbon settles on the surface of the ice, which reduces albedo. Albedo and Global Warming.

The most significant projected impact on albedo is through. Ice–albedo feedback is a positive feedback climate process where a change in the area of ice caps, glaciers, and sea ice alters the albedo and surface temperature of a planet.

Ice is very reflective, therefore some of the solar energy is reflected back to space. Ice–albedo feedback plays an important role in global climate change. For instance at higher latitudes, we see warmer. Interest has also begun to focus on large installations of bifacial systems in high-albedo settings [10, 11] including both artificial environments, such as white commercial rooftops or enhanced.

Silicon solar cells convert about 1/6 of incident sunlight into electricity and dissipate most of the remaining 5/6 as heat. So in terms of their direct climate effect, they have an albedo, or Author: George Musser. What that means is that as the ice sort of decreases, the albedo of the Arctic changes.

Ice, of course, is white and bright, and it reflects solar energy back into space. A typical ocean albedo is approximatelywhile bare sea ice varies from approximately to This means that the ocean reflects only 6 percent of the incoming solar radiation and absorbs the rest, while sea ice reflects 50 to 70 percent of the incoming energy.

The sea ice absorbs less solar energy and keeps the surface cooler. Here on Earth, the albedo effect has a significant impact on our climate. The lower the albedo, the more radiation from the Sun that gets absorbed by the planet, and temperatures will rise. If. Although the spectral effects of direct and diffuse radiation on solar photovoltaic (PV) performance are relatively well understood, recent investigations have shown that there can be a spectral bias introduced due to albedo from common ground surfaces that can impact the Cited by: Albedo was obtained for the limiting case of Γ = 1 by adding to the calculated reflectance to account for the irradiance emerging from beneath the surface.

Wind speed affects albedo through its influence on the surface roughness. The clear-sky reflectivity from a flat water surface is a strong function of solar altitude for altitudes. amount of incident radiation from the solar altitude angle decreases.

Therefore for high solar altitude, the albedo for cloudy skies will be greater than the albedo for clear skies. For lower solar altitudes the albedo for cloudy skies will be less than the albedo for clear skies. These effects are illustrated inFile Size: KB. Start studying The Albedo Effect.

Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. Create. Ice-Albedo Feedback. The repetition of solar energy melting snow and ice, exposing darker ground/water which turns into greater heat absorption.

Scientists use the term albedo to describe the percentage of solar radiation reflected back into space by an object or surface. A perfectly black surface has an albedo of 0 (all radiation is absorbed). A perfectly white surface has an albedo of (all radiation is reflected).

Different features of earth (such as snow, ice, tundra, ocean, and. The percentage of incoming solar energy that is reflected back out to space by a surface is its albedo. Albedo is expressed in a scale of 0 to An albedo of 1 would reflect % of solar energy.

Snow has the very highest albedo and open water the very lowest. A loss of 1% of planetary albedo is about equivalent to 2X CO2 (Flanner).

Abstract. The effects of ground albedo on solar radiation were investigated in a field campaign around Ny Alesund on Svalbard, Norway. In spring time this site exhibits high albedo gradients at the interface between sea water and snow covered : A. Kreuter, M. Blumthaler, A. Webb, A. Bais, R. Kift, N.

Kouremeti. These changes decrease the albedo. With a lower albedo more solar energy is absorbed and less is reflected.

This causes more ice to melt, which in turn lowers the albedo, causes more energy to be absorbed and more warming to occur." See also this page. Albedo is a measure of the reflectivity of a surface.

The albedo effect when applied to the Earth is a measure of how much of the Sun's energy is reflected back into space.

Overall, the Earth's albedo has a cooling effect. (The term ‘albedo’ is derived from the Latin for ‘whiteness’).

Changes in the polar regions can cause more warming in the entire planet earth system through feedback effects. One such effect is the reduction of ice and snow due to warmer temperatures. When the white and gray snow and ice disappears, less sun rays are reflected out and instead the heat is absorbed by land and sea - which causes further increase in the warming.

The average albedo of the Earth is, meaning the planet reflects about 31% of incoming solar radiation back into space. However, forests and deserts, oceans, clouds, snow, and ice all have different albedos, and changes in them can affect how much solar radiation the earth : Leigh Hutchens.

The CERES albedo observations allow us to directly estimate the total darkening of the Arctic during the – CERES period. Fig. 4A shows the annual clear-sky and all-sky albedos during this period (solid lines). The change in all-sky albedo implies that the darkening of the Arctic has caused an increase in solar absorption of W/m 2 during this y period ().Cited by: