solar zenith angle वाक्य
उदाहरण वाक्य
मोबाइल
- Downward shortwave radiation is sensitive to solar zenith angle, cloud cover and surface albedo.
- MODIS mean nadir reflectances over the target are determined and are plotted versus the solar zenith angle.
- The effective scattering height depends on the ozone absorption coefficient and on the solar zenith angle, increasing as with each of these.
- The cosine of the hour angle ( cos ( " h " ) ) is used to calculate the solar zenith angle.
- The counts for AVHRR observations at a given solar zenith angle and corresponding MODIS reflectance, corrected for TWP, are then used to determine what AVHRR value would be provided it had the MODIS calibration.
- The LP-80 calculates LAI by means of measuring the difference between light levels above the canopy and at ground level, and factoring in the leaf angle distribution, solar zenith angle, and plant extinction coefficient.
- In contrast to solar radiation management techniques, which would be most effective during the day time at lower latitudes, cirrus cloud thinning would be most effective at high latitudes and high solar zenith angles, where the background concentrations of aerosol are low.
- With the assistance of a resident mathematician ( Dr . John Schell ), they studied solutions to this dilemma and subsequently developed the ratio of the difference of the red and infrared radiances over their sum as a means to adjust for or normalize the effects of the solar zenith angle.
- It was found that the ratio of calibration coefficients derived by Loeb [ 1997 ] and Rao and Chen [ 1995 ] are independent of solar zenith angle, thus implying that the NOAA-9-derived calibration curves provide an accurate relation between the solar zenith angle and observed reflectance over Greenland and Antarctica.
- It was found that the ratio of calibration coefficients derived by Loeb [ 1997 ] and Rao and Chen [ 1995 ] are independent of solar zenith angle, thus implying that the NOAA-9-derived calibration curves provide an accurate relation between the solar zenith angle and observed reflectance over Greenland and Antarctica.
- The researchers for this Great Plains study ( PhD student Donald Deering and his advisor Dr . Robert Haas ) found that their ability to correlate, or quantify, the biophysical characteristics of the rangeland vegetation of this region from the satellite spectral signals was confounded by these differences in solar zenith angle across this strong latitudinal gradient.
- Later in 1974 together they went on to conduct a statistical investigation of the variation of E-region critical frequency f _ 0 E with solar activity, solar zenith angle and season, to obtain a describing function of f _ 0 E in terms of geographic latitude, solar zenith angle and 10.7 cm solar radio-noise flux, for the design of ionospheric transmission paths.
- Later in 1974 together they went on to conduct a statistical investigation of the variation of E-region critical frequency f _ 0 E with solar activity, solar zenith angle and season, to obtain a describing function of f _ 0 E in terms of geographic latitude, solar zenith angle and 10.7 cm solar radio-noise flux, for the design of ionospheric transmission paths.
- One of those early studies was directed toward examining the spring vegetation green-up and subsequent summer and fall dry-down ( the so-called vernal advancement and retrogradation ) throughout the north to south expanse of the Great Plains region of the central U . S . This region covered a wide range of latitudes from the southern tip of Texas to the U . S .-Canada border, which resulted in a wide range of solar zenith angles at the time of the satellite observations.
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