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Tuesday, August 4, 2020 | History

1 edition of Atmospheric infrared backscatter found in the catalog.

Atmospheric infrared backscatter

Atmospheric infrared backscatter

summary of present knowledge and recommendations for future work

  • 118 Want to read
  • 9 Currently reading

Published by U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories in [Washington, D.C.?] .
Written in English

    Subjects:
  • Aerosols,
  • Backscattering -- Measurement

  • Edition Notes

    StatementF.F. Hall, Jr., editor
    SeriesNOAA technical memorandum ERL WPL -- 110
    ContributionsHall, Freeman F., 1928-, Environmental Research Laboratories (U.S.)
    The Physical Object
    Paginationiv, 147 p. :
    Number of Pages147
    ID Numbers
    Open LibraryOL14850956M

    Get this from a library! Phase function, backscatter, extinction, and absorption for standard radiation atmosphere and El Chichon aerosol models at visible and near-infrared wavelengths. [Charles H Whitlock; J T Suttles; Stuart R LeCroy; Langley Research Center.]. adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A.

      The Third Atmospheric Laboratory for Applications and Science. ATLAS 3 focused on atmospheric and solar physics and consisted of the same experiments as in ATLAS-2 with the addition of two co-manifested experiments. Television Infrared Observation Satellite (TIROS) TIROS Operational Vertical Sounder (TOVS) Sounder (Passive Sensor) GES DISC. The Cloud–Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite began acquiring scientific data in mid-June CALIPSO carries three coaligned, nadir-viewing instruments: a three-channel elastic-backscatter lidar, an imaging infrared radiometer, and a wide-field camera. An overview of the CALIPSO mission, science objectives, and instruments is presented in Winker.

    Atmospheric and Climate Sciences Vol No(), Article ID,18 pages /acs The Influence of IR Absorption and Backscatter Radiation from CO 2 on Air Temperature during Heating in a Simulated Earth/Atmosphere Experiment. Thorstein O. Seim 1, Borgar T. Olsen 2,3,4 Abstract. The visible optical depth can be calculated to only about 50% accuracy using the lidar backscatter values and derived values of k. A value to about 30% accuracy can be calculated from the infrared volume absorption coefficient σ A together with theoretical values of α.


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Atmospheric infrared backscatter Download PDF EPUB FB2

The BUV instrument on-board Nimbus-4 initiated the era of satellite instruments specifically designed to study atmospheric composition using UV backscatter solar radiance in By including spectral measurements up to nm, this instrument was suitable for observations of total column O 3 with enhanced stratospheric and tropospheric Cited by: 5.

Get this from a library. Atmospheric infrared backscatter: summary of present knowledge and recommendations for future work. [Freeman F Hall; Environmental Research Laboratories (U.S.),;]. Boulder, Colorado: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Series: NOAA technical memorandum ERL WPL, Edition/Format: Print book: National government publication: EnglishView all editions and formats: Rating: (not yet rated) 0 with reviews - Be the first.

Atmospheric aerosols determine by their size distributions and compositions the backscatter that infrared lidars measure. The global characteristics of the larger aerosols in the planetary boundary layer, free troposphere, and stratosphere are by: 4. from book Remote Sensing and Climate Modeling: (UV) to the near infrared (IR).

Most commonly. the rapid decrease in atmospheric backscatter signal S) is the backscatter. Dependence of Net Infrared Absorption on Atmospheric Concentrations. Net infrared absorption is determined by the intrinsic strength of the absorption for that particular molecule and transition (i.e., the absorption cross section), the effective path length, and the concentration of the absorbing gas.

CO 2, H 2 O, and to a lesser extent O 3. Abstract: A 2-μm backscatter lidar system has been developed by utilizing tunable pulsed laser and infrared phototransistor for the transmitter and the receiver, respectively. To validate the system, the 2-μm atmospheric backscatter profiles were compared to profiles obtained at 1 and μm using avalanche photodiode and photomultiplier tube, respectively.

Recommendations for processing atmospheric attenuated backscatter profiles from Vaisala CL31 ceilometers Article (PDF Available) in Atmospheric Measurement Techniques 9(8). The Global Backscatter Experiment (GLOBE) objectives require intensive study of the global climatology of atmospheric aerosol backscatter at infrared wavelengths.

The data obtained from GLOBE are of great importance for analysis of the global winds measurement application of coherent Doppler lidar. Ground-based and airborne backscatter lidars have been developed to measure atmospheric. Iturup and Urup are observed on both images due to high backscatter and high emissivity of land surface.

Cold atmospheric front was located south of the Kuril Islands at the time of the Okean pass (Figure 6 c) A dense cloud band corresponded to this front on NOAA-I0 visible image obtained on Augat UTC. Its width was about. A range of models for the prediction of scattering properties of aerosols for visible to middle infrared wavelengths are described with emphasis on improved versions of optical models of the atmosphere.

Model vertical profiles of the scattering parameters of volume extinction, backscatter coefficients, absorption, and normalized scattering. The radiative transfer model allows for estimation of infrared emission due to atmospheric water vapor, ozone, and carbon dioxide, which is essential for deriving cirrus radiative properties.

Also described is an improved technique for estimation of upwelling IR radiation that is emitted by the surface of the earth and reflected by the cloud. Atmospheric infrared transmission measurements in maritime locations are also presented.

Subsequent sections explore microwave and millimeter wave phenomena; geoastrophysical applications; and in situ measurements, remote sensing, and meteorology of water vapor. The final chapters deal with the microphysics and atmospheric chemistry of water vapor.

This book investigates elementary processes in the Earth’s atmosphere involving photons, electrons, ions, radicals, and aerosols.

It is based on global atmospheric models such as the standard. United States Department of Defense space-based infrared sensors detected a large meteor in flight at an altitude of approximately 75 km at ut (universal time) on 3. Atmospheric backscatter model development for CO₂ wavelengths.

Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [Springfield, Va.: For sale by the National Technical Information Service], (OCoLC) Material Type: Government publication, National government publication. In physics, backscatter (or backscattering) is the reflection of waves, particles, or signals back to the direction from which they is usually a diffuse reflection due to scattering, as opposed to specular reflection as from a mirror, although specular backscattering can occur at normal incidence with a attering has important applications in astronomy, photography, and.

A method for retrieval of cirrus macrophysical and radiative properties using combined ruby lidar and infrared radiometer measurements is explained in detail.

The retrieval algorithm includes estimation of a variable backscatter-to-extinction ratio for each lidar profile, which accounts for changes in cloud microphysical properties with time. Tabular values of phase function, Legendre polynominal coefficients, deg backscatter, and extinction cross section are given for eight wavelengths in the atmospheric windows between and 2.

In this report a linear relation between the volume extinction coefficient and backscatter coefficient of atmospheric cloud at visible and near-infrared wavelengths is derived. The relation is in good agreement (within 50 percent) with Mie calculations of extinction and backscatter coefficients based on measurements of cloud droplet spectra.

Over the last five decades, Earth’s atmosphere has been extensively monitored from space using different spectral ranges. Early efforts were directed .The DL operates in the near-infrared and is sensitive to backscatter from atmospheric aerosol, which are assumed to be ideal tracers of atmospheric wind fields.

The DL works by transmitting short pulses of infrared laser light into the atmosphere. Atmospheric aerosols scatter a small fraction of that light energy back to the transceiver, where.Mechanisms in the infrared atmospheric window.

The principal natural greenhouse gases in order of their importance are water vapor H 2 O, carbon dioxide CO 2, ozone O 3, methane CH 4 and nitrous oxide N 2 concentration of the least common of these, N 2 O, is about ppbV.

Other gases which contribute to the greenhouse effect are present at pptV levels.