Evaluation of ultraviolet radiation, ozone and aerosol interactions in the troposphere using automatic differentiation. Final report

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Description

A major goal of this research was to quantify the interactions between UVR, ozone and aerosols. One method of quantification was to calculate sensitivity coefficients. A novel aspect of this work was the use of Automatic Differentiation software to calculate the sensitivities. The authors demonstrated the use of ADIFOR for the first time in a dimensional framework. Automatic Differentiation was used to calculate such quantities as: sensitivities of UV-B fluxes to changes in ozone and aerosols in the stratosphere and the troposphere; changes in ozone production/destruction rates to changes in UV-B flux; aerosol properties including loading, scattering properties (including relative ... continued below

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13 p.

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Carmichael, G.R. & Potra, F. October 6, 1998.

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Description

A major goal of this research was to quantify the interactions between UVR, ozone and aerosols. One method of quantification was to calculate sensitivity coefficients. A novel aspect of this work was the use of Automatic Differentiation software to calculate the sensitivities. The authors demonstrated the use of ADIFOR for the first time in a dimensional framework. Automatic Differentiation was used to calculate such quantities as: sensitivities of UV-B fluxes to changes in ozone and aerosols in the stratosphere and the troposphere; changes in ozone production/destruction rates to changes in UV-B flux; aerosol properties including loading, scattering properties (including relative humidity effects), and composition (mineral dust, soot, and sulfate aerosol, etc.). The combined radiation/chemistry model offers an important test of the utility of Automatic Differentiation as a tool in atmospheric modeling.

Physical Description

13 p.

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OSTI as DE99003352

Medium: P; Size: 13 p.

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  • Other Information: PBD: 6 Oct 1998

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  • Other: DE99003352
  • Report No.: DOE/ER/61855--T1
  • Grant Number: FG02-94ER61855
  • DOI: 10.2172/355037 | External Link
  • Office of Scientific & Technical Information Report Number: 355037
  • Archival Resource Key: ark:/67531/metadc675315

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  • October 6, 1998

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  • July 25, 2015, 2:20 a.m.

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  • April 7, 2017, 12:47 p.m.

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Carmichael, G.R. & Potra, F. Evaluation of ultraviolet radiation, ozone and aerosol interactions in the troposphere using automatic differentiation. Final report, report, October 6, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc675315/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.