An Instrument System to Measure the Vertical Distribution of Ozone in the Lower Troposphere PDF Download
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Author: Paul Steven Sanik
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 394
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Author: Paul Steven Sanik
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 394
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Author: Richard T. Bettinger
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 508
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
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Author: William B. Grant
Publisher:
ISBN:
Category : Air
Languages : en
Pages :
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721191314
Category :
Languages : en
Pages : 28
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Measuring and understanding the distribution of ozone through the lower levels of Earth's atmosphere are high priorities in global change and climate research. Of particular interest now is the global distribution of ozone in the upper troposphere and lower stratosphere. Global coverage of the stratospheric ozone is feasible only via remote sensing instruments on a space-based platform. And though extensive monitoring tropospheric ozone is possible using instruments flown aboard conventional aircraft, a space-based system would be significantly less costly and provide information over a much broader area and produce more uniform coverage. Here we describe the prototype of an instrument being developed to monitor, from an orbiting spacecraft, the ozone found in Earth's upper troposphere and lower stratosphere. Our new spectrometer is an infrared Fabry-Perot interferometer which uses two synchrounously tuned etalons: a high resolution narrow band device and a lower resolution broader band filtering etalon. The prototype is a scanning device making use of nearly collimated input radiation and a single element detector. As presently configured, it is capable of providing a resolution better than 0.07/cm with a spectral band width approximately 5/cm wide and centered at 1054.7/cm. For the future space-based emission device a modification of the the prototype was to be made to employ innovative circle-to-line detector optics, those developed or in development at UM/SPRL, and a focal plane array detector. These enhancements would enable a simultaneous recording of the entire spectral range of interest, but with simple detection electronics and a significant gain in signal-to-noise over that of the scanning version. Cook, William Langley Research Center
Author: Laboratory for Atmospheres (Goddard Space Flight Center)
Publisher:
ISBN:
Category : Atmosphere
Languages : en
Pages : 60
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Author: C. Prabhakara
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 76
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Nimbus 3 infrared interferometer spectrometer (IRIS)measurements of the intensities in the 9.6-pn region are used to derive the ozone content in the atmosphere between latitudes SOON and 80's. The global distribution of total ozone was mapped for eight days in April and eight days in July 1969. These global maps of total ozone are compared with the upper-air oonstant pressure maps to emphasize the meteorological significance of the ozone variations in time and space. The total ozone has a minimum value of about 0.25 cm STP in the equatorial regions and increases markedly toward both poles. In the Arctic region, the total ozone in the spring time is well above 0.5 cm STP, while in summer it is about 0.4 cm STP. An eight-day mean global map of total ozone for April 1969 clearly reveals the presence of climatological large-scale ozone systems in the atmosphere. Another such map, for July 1969, shows that these systems have weakened considerably in the northern hemisphere. Seasonal variability in the total ozone over the southern hemisphere is much less pronounced. Close association between the total-ozone systems and tropospheric weather systems is shown for several cases. From this study, it is concluded that the atmospheric ozone, remotely sensed by satellites, can be used as a meteorological parameter to diagnose the present state of the atmosphere, and, thereby, aid weather prediction.
Author: Robert D. Hudson
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 596
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Author:
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 378
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