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  • 1
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    Reply [to “Comment on ‘Annual and interannual variations of Earth-emitted radiation based on a 10-year data set’ by T. D. Bess et al.”] (1993)
    American Geophysical Union
    Details
    Publikationsdatum: 1993-10-20
    Print ISSN: 0148-0227
    Digitale ISSN: 2156-2202
    Thema: Geologie und Paläontologie
    Publiziert von American Geophysical Union
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Earth radiation budget - Results of outgoing longwave radiation from Nimbus-7, NOAA-9, and ERBS satellites (1993)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-24
    Beschreibung: Outgoing longwave radiation (OLR) data from Nimbus-7 ERB wide field-of-view instruments are compared with results from the ERBE instruments aboard the NOAA-9 and NOAA-10 satellites. Over most regions of the globe, the agreement between the two sets of OLR results is generally to within 8 W/sq m. There are larger differences at higher latitudes and regions concentrated over land and desert. Results of daytime and nighttime differences suggest that the shortwave channels may be at fault due to their different design for Nimbus-7 and NOAA-9. Some of the differences may also be related to different viewing geometry of the two satellites.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: Journal of Applied Meteorology (ISSN 0894-8763); 32; 5; p. 813-824.
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Comparison of 18 months of longwave radiation results from Nimbus-7 and the ERBE NOAA-9 and NOAA-10 satellites (1992)
    In:  Other Sources
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    Publikationsdatum: 2011-08-24
    Beschreibung: The outgoing longwave radiation (OLR) data from ERBE wide-field-of-view (WFOV) and scanning sensor are compared with Nimbus-7 WFOV results. Monthly averaged OLR data from the ERBE WFOV instruments aboard the NOAA-9 and NOAA-10 polar orbiting satellites during the 3-year overlap period with Nimbus-7 are deconvolved using spherical harmonics. Results of a comparison of the data sets are presented on regional, zonal, and global scales in the spatial domain and on a monthly scale in the time domain.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: In: Conference on Satellite Meteorology and Oceanography, 6th, Atlanta, GA, Jan. 5-10, 1992, Preprints (A93-36051 14-47); p. 201-204.
    Format: text
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  • 4
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    Annual and interannual variations of earth-emitted radiation based on a 10-year data set (1992)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-24
    Beschreibung: The method of empirical orthogonal functions (EOFs) was applied to a 10-yr data set of outgoing longwave radiation. Spherical harmonic functions are used as a basis set for producing equal area map results. The first EOF accounts for 66 percent of the variance. After that, each EOF accounts for only a small variance, forming a slowly converging series. The first two EOFs describe mainly the annual cycle. The third EOF is primarily the semiannual cycle although many other EOFs also contain significant semiannual parts. These results reaffirm those based on a shorter data set. In addition, a much stronger spring/fall mode was found in the central equatorial Pacific Ocean for the second EOF than was found earlier. The fourth EOF describes much of the 1976 to 1977 and 1982 to 1983 ENSO phenomena. There is typically a gap in the spectrum between a semiannual peak and the annual cycle for all but the first EOF. A semiannual OLR dipole straddles the Asian-Australian monsoon track.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: Journal of Geophysical Research (ISSN 0148-0227); 97; D12,; 12
    Format: text
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  • 5
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    Manmade orbital debris studies at NASA Langley (1985)
    In:  CASI
    Details
    Publikationsdatum: 2006-02-14
    Beschreibung: In the past, flight experiments to define the meteoroid environment near the Earth and in interplanetary space were undertaken. The effectiveness of meteoroid bumpers was investigated. These flight experiments were aboard Pioneer 10, Pioneer 11, and Explorer 46. Hypervelocity impact tests were conducted in the laboratory to study protective structures and the composition of meteoroids from the hundreds of meteor spectra obtained. It was also found that manmade debris presented a similar hazard to spacecraft near the Earth. An assessment of that hazard is made in this paper. An analysis of the collision probability problem with much attention given to the population of small untrackable fragments created during explosions is presented.
    Schlagwort(e): ASTRONAUTICS (GENERAL)
    Materialart: NASA. Lyndon B. Johnson Space Center Orbital Debris; p 45-68
    Format: text
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  • 6
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    Variability of earth-emitted radiation from one year of Nimbus-6 ERB data (1986)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-19
    Beschreibung: Outgoing longwave radiation (OLR) measurements from the Nimbus-6 ERB wide field-of-view instrument are used to study daytime and nighttime radiation variability on a 15 deg regional, zonal, and global scale. An analysis of components of variance is used to determine how much of the total variability is due to between-region and within-region variance. Most of the analysis is on July and January data from one year of Nimbus-6 ERB. Different geographical scales are considered: regions within latitude zones and latitude zones within hemispheres. Results show that much of the variability is spatial, peaks in the tropics and subtropics, and is concentrated in the Northern Hemisphere. Daytime variability is generally larger than nighttime variability for July but not for January. Variance in OLR in the tropics and subtropics is largely a function of cloud variability.
    Schlagwort(e): GEOPHYSICS
    Materialart: Journal of the Atmospheric Sciences (ISSN 0022-4928); 43; 1445-145
    Format: text
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  • 7
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    Infrared parameterization and simple climate models (1984)
    In:  Other Sources
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    Publikationsdatum: 2011-08-19
    Beschreibung: The geographical distribution of the annual mean and the annual cycle in surface temperature and satellite-observed IR is examined, and the spherical harmonic representation of the data fields is exploited to demonstrate how variances and covariances are dominated by the largest space and time scales. The geographical distribution of the annual cycle in the T and IR fields is explored; the strong imprint of the continents in both is clearly evident. The influence of the cloudiness of seasonal precipitation regimes on the IR annual cycle is also quite striking, especially over the subtropics. Analysis of the data shows that the simple form IR = A+BT (with A = 204 W/sq m and B = 1.93 W/sq m/K) explains 90 percent of the area-weighted variance in the annual mean and annual cycle of the zonally averaged IR field.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: Journal of Climate and Applied Meteorology (ISSN 0733-3021); 23; 1222-123
    Format: text
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  • 8
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    Deconvolution of wide field-of-view radiometer measurements of earth-emitted radiation. II - Analysis of first year of Nimbus 6 ERB data (1981)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: The theory of deconvolution considered by Smith and Green (1981) is applied to Nimbus 6 data in order to interpret the data with the maximum obtainable resolution. Attention is given to the data sample, sun-contaminated measurements, the measurement model, the deconvolution, the degree variance, the spherical harmonic coefficients, the geographical distribution of longwave radiation, time histories of zonal coefficients, and the effect of a grid system. Degree variance plots for 12 months of longwave radiation data show that the limit for a spherical harmonic representation of the Nimbus 6 wide field-of-view longwave data is 12th degree. The degree variance plots also reveal that most of the power is in the lower degree terms. Contour maps of the radiation field show the geographical distribution of earth emitted radiant exitance for each month.
    Schlagwort(e): GEOPHYSICS
    Materialart: Journal of the Atmospheric Sciences; 38; Mar. 198
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
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    Annual cycle and spatial spectra of earth emitted radiation at large scales (1983)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: Monthly averaged, resolution enhanced global distributions of the earth's emitted radiation, as measured by the Nimbus-6 Earth Radiation Budget (ERB) wide field of view radiometers, have been analyzed for 1 year of data from July 1975 to June 1976. These distributions are expressed in terms of spherical harmonic coefficients, and time and space variability of the emitted radiation field is studied in terms of these coefficients. The average annual distribution accounts for 78 percent of the space-time power, and the annual cycle accounts for 17 percent of the power. Spatial variations over the globe are described in terms of degree variance, and longitudinal variations are described in terms of spectral power as a function of latitude. The longitudinal spectra were found to vary strongly with time.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: Journal of the Atmospheric Sciences (ISSN 0022-4928); 40; April 19
    Format: text
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  • 10
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    The annual cycle of Earth emitted radiation distribution (1979)
    In:  CASI
    Details
    Publikationsdatum: 2016-06-07
    Beschreibung: Measurements of longwave radiation from the Earth Radiation Budget (ERB) experiment aboard the Nimbus 6 spacecraft have been analyzed to show the annual cycle of the distribution of Earth emitted radiation.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: NASA. Goddard Space Flight Center 4th NASA Weather and Climate Program Sci. Rev.; p 297-301
    Format: application/pdf
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