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  • 1
    Publication Date: 2019-06-28
    Description: A global cloud cover data set, derived from the USAF 3D NEPH Analysis, was developed for use in climate studies and for Earth viewing applications. This data set contains a single parameter - total sky cover - separated in time by 3 or 6 hr intervals and in space by approximately 50 n.mi. Cloud cover amount is recorded for each grid point (of a square grid) by a single alphanumeric character representing each 5 percent increment of sky cover. The data are arranged in both quarterly and monthly formats. The data base currently provides daily, 3-hr observed total sky cover for the Northern Hemisphere from 1972 through 1977 less 1976. For the Southern Hemisphere, there are data at 6-hr intervals for 1976 through 1978 and at 3-hr intervals for 1979 and 1980. More years of data are being added. To validate the data base, the percent frequency of or = 0.3 and or = 0.8 cloud cover was compared with ground observed cloud amounts at several locations with generally good agreement. Mean or other desired cloud amounts can be calculated for any time period and any size area from a single grid point to a hemisphere. The data base is especially useful in evaluating the consequence of cloud cover on Earth viewing space missions. The temporal and spatial frequency of the data allow simulations that closely approximate any projected viewing mission. No adjustments are required to account for cloud continuity.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TP-2448 , NAS 1.60:2448
    Format: application/pdf
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  • 2
    Publication Date: 2019-06-28
    Description: Atmospheric conditions near space shuttle STS-1 launch time on April, 12, 1981, at Kennedy Space Center, Florida, are reported. Values of ambient pressure, temperature, moisture, ground winds, visual observations (cloud), and winds aloft are included. The sequence of prelaunch Jimsphere measured vertical wind profiles is presented. Also presented are the wind and thermodynamic parameters measured at the surface and aloft in the SRB descent/impact ocean area. Final meteorological data tapes for STS-1 vehicle ascent, and SRB descent have been constructed which consist of wind and thermodynamic parameters versus altitude.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-82436
    Format: application/pdf
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  • 3
    Publication Date: 2019-06-28
    Description: Selected atmospheric conditions observed near Space Shuttle STS-3 launch time on March 22, 1982, at Kennedy Space Center, Florida are summarized. Values of ambient pressure, temperature, moisture, ground winds, visual observations (cloud), and winds aloft are included. The sequence of prlaunch Jimsphere measured vertical wind profiles and the wind and thermodynamic parameters measured at the surface and aloft in the SRB descent/impact ocean area are presented. Final meteorological tapes, which consist of wind and thermodynamic parameters versus altitude, for STS-3 vehicle ascent and SRB descent were constructed. The STS-3 ascent meteorological data tape is constructed.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-82480 , NAS 1.15:82480
    Format: application/pdf
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  • 4
    Publication Date: 2019-06-28
    Description: Selected atmospheric conditions observed near Space Shuttle STS-2 launch time on November 12, 1981, or Kennedy Space Center, Florida are summarized. Values of ambient pressure, temperature, moisture, ground winds, visual observations (cloud), and winds aloft are included. The sequence of prelaunch Jimsphere measured vertical wind profiles is given in this report. Wind and thermodynamic parameters measured at the surface and aloft in the SRB descent/impact ocean area are also presented. Final meteorological tapes, which consist of wind and thermodynamic parameters versus altitude, for STS-2 vehicle ascent and SRB descent have been constructed. The STS-2 ascent meteorological data tape was constructed.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-82463 , NAS 1.15:82463
    Format: application/pdf
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  • 5
    Publication Date: 2019-06-27
    Description: Ground level runway wind statistics cover crosswind, tailwind, and headwind reversal percentage frequencies with respect to month and hour for the two major runways. Also presented are bivariate normal wind statistics for a 90 degree flight azimuth for altitudes 0 through 27 km. Wind probability distributions, synthetic vector wind profiles, and statistics for any rotation of axes are computed from five given parameters.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-78136
    Format: application/pdf
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  • 6
    Publication Date: 2019-06-27
    Description: Ground level runway wind statistics are presented for the Kennedy Space Center, Florida area. Crosswind, headwind, tailwind, and headwind reversal percentage frequencies are given with respect to month and hour for the Kennedy Space Center Space Shuttle runway. This document supersedes NASA CR-128995 and should be used in place of it.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-78181
    Format: application/pdf
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  • 7
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    In:  Other Sources
    Publication Date: 2019-07-13
    Description: A data base of paired detailed wind profiles is developed for use in evaluating the STS ascent capability. The flight of the Shuttle is simulated through a sequence of measured detailed wind profiles and the wind effects on load and performance are evaluated. Since the wind measurement and simulation time requirements dictate that the launch decision be based on wind measurements taken about 3.5 hr before launch, a data base of paired detailed profiles is obtained in order to account for possible load increases due to wind profile changes during the final 3.5 hr before launch. Results show that the largest wind changes occur in winter at about 12 km altitude. At that time and altitude, it is found that there is a 5 percent risk that the wind component speed change will approximate 10 m/s in 3.5 hr. It is determined that the wind can vary over a period of 3.5 hr by more than 20 percent from the transition season to the winter season while somewhat smaller changes occur between the transition season and the summer season. It is concluded that these results demonstrate the feasibility of the wind change model concept and that this model should be considered for future use in Shuttle prelaunch operations.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Conference on Aerospace and Aeronautical Meteorology; Jun 06, 1983 - Jun 09, 1983; Omaha, NE
    Format: text
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  • 8
    Publication Date: 2019-06-27
    Description: Ground level runway wind statistics for the Edwards AFB, California area are presented. Crosswind, headwind, tailwind, and headwind reversal percentage frequencies are given with respect to month and hour for the two major Edwards AFB runways. Also presented are Edwards AFB bivariate normal wind statistics for a 90 degree flight azimuth for altitudes 0 through 27 km. Wind probability distributions and statistics for any rotation of axes can be computed from the five given parameters.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-78160
    Format: application/pdf
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  • 9
    Publication Date: 2019-06-27
    Description: Revised ground-level runway wind statistics for the Kennedy Space Center, Florida area are presented. Crosswind, headwind, tailwind, and headwind reversal percentage frequencies are given with respect to month and hour for the Kennedy Space Center Space Shuttle runway.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-78229
    Format: application/pdf
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  • 10
    Publication Date: 2019-06-27
    Description: Bivariate normal wind statistics for a 90 degree flight azimuth, from 0 through 90 km altitude, for Kennedy Space Center, Florida, and Vandenberg AFB, California are presented. Wind probability distributions and statistics for any rotation of axes can be computed from the five given parameters.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-TM-78233
    Format: application/pdf
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