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The albedo of snow for partially cloudy skies
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Choudhury, B. J. Chang, A. T. C. |
| Copyright Year | 1980 |
| Description | The input parameters of the model are atmospheric precipitable water, ozone content, turbidity, cloud optical thickness, size and shape of ice crystal of snow and surface pressure. The model outputs spectral and integrated solar flux snow reflectance as a function of solar elevation and fractional cloudcover. The model is illustrated using representative parameters for the Antarctic coastal regions. The albedo for a clear sky depends inversely on the solar elevation. At high elevation the albedo depends primarily upon the grain size; at low elevation this dependence is on grain size and shape. The gradient of the albedo-elevation curve increases as the grains get larger and faceted. The albedo for a dense overcast is a few percent higher than the clear sky albedo at high elevations. A simple relation between the grain size and the overcast albedo is obtained. For a set of grain size and shape, the albedo matrices (the albedo as a function of solar elevation and fractional cloudcover) are tabulated. |
| File Size | 1589874 |
| Page Count | 37 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800017264 |
| Archival Resource Key | ark:/13960/t9867b32x |
| Language | English |
| Publisher Date | 1980-04-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Grain Boundaries Insolation Sky Brightness Antarctic Regions Spectral Reflectance Attenuation Coefficients Cloud Cover Albedo Atmospheric Scattering Solar Flux Mathematical Models Radiative Transfer Snow Cover Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
