Gregory Roff - Academia.edu (original) (raw)
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Papers by Gregory Roff
Climate Dynamics, 2014
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The aim of this research letter is to present an overview of the meteorological conditions releva... more The aim of this research letter is to present an overview of the meteorological conditions relevant to the ozone distribution and UV Index during the Southern Hemisphere spring and summer. This is not an ozone-hole statement; the ozone-hole statements can be found at http://kelly.ho.bom.gov.au/htdocs/ozone/index.asp and at http://www.wmo.ch/web/arep/arephome. html.
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The aim of this research letter is to present an overview of the meteorological conditions releva... more The aim of this research letter is to present an overview of the meteorological conditions relevant to the ozone distribution and UV Index during the Southern Hemisphere spring and summer. This is not an ozone-hole position statement which can be found at http://kelly.ho.bom.gov.au/htdocs/ozone/index.asp while the WMO Bulletins can be found at http://www.wmo.ch/web/arep/arep-home.html.
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Atmospheric Chemistry and Physics
The NAM-SCA (nonhydrostatic anelastic model with segmentally-constant approximation) is a type of... more The NAM-SCA (nonhydrostatic anelastic model with segmentally-constant approximation) is a type of cloud-resolving model (CRM) with a highly-inhomogeneous distribution of finite volumes of varying sizes in a horizontal direction under a two-dimensional geometrical configuration. These finite-volume positions and sizes are dynamically adapted to achieve best performance with a limited number of finite volumes. The concept can be compared with "compression" techniques used for digital images. The physics are also limited only to a minimum microphysics. The present paper reports on a successful implementation of NAM-SCA into single column versions of two global atmospheric models as a compressed super-parameterization. ECHAM1 and ACCESS2 are chosen as the host models. A stand-alone single-column model (SCM) is also developed, in which the other physics are prescribed by observations. A simple radiation scheme is added as required. Overall, it is found that, under this configur...
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Quarterly Journal of the Royal Meteorological Society, 1982
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Quarterly Journal of the Royal Meteorological Society, 2010
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Quarterly Journal of the Royal Meteorological Society, 2002
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Monthly Weather Review, 1991
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Journal of Geophysical Research, 2003
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Geophysical Research Letters, 2002
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Geophysical Research Letters, 1996
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Climate Dynamics, 2014
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Climate Dynamics, 2014
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The aim of this research letter is to present an overview of the meteorological conditions releva... more The aim of this research letter is to present an overview of the meteorological conditions relevant to the ozone distribution and UV Index during the Southern Hemisphere spring and summer. This is not an ozone-hole statement; the ozone-hole statements can be found at http://kelly.ho.bom.gov.au/htdocs/ozone/index.asp and at http://www.wmo.ch/web/arep/arephome. html.
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The aim of this research letter is to present an overview of the meteorological conditions releva... more The aim of this research letter is to present an overview of the meteorological conditions relevant to the ozone distribution and UV Index during the Southern Hemisphere spring and summer. This is not an ozone-hole position statement which can be found at http://kelly.ho.bom.gov.au/htdocs/ozone/index.asp while the WMO Bulletins can be found at http://www.wmo.ch/web/arep/arep-home.html.
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Atmospheric Chemistry and Physics
The NAM-SCA (nonhydrostatic anelastic model with segmentally-constant approximation) is a type of... more The NAM-SCA (nonhydrostatic anelastic model with segmentally-constant approximation) is a type of cloud-resolving model (CRM) with a highly-inhomogeneous distribution of finite volumes of varying sizes in a horizontal direction under a two-dimensional geometrical configuration. These finite-volume positions and sizes are dynamically adapted to achieve best performance with a limited number of finite volumes. The concept can be compared with "compression" techniques used for digital images. The physics are also limited only to a minimum microphysics. The present paper reports on a successful implementation of NAM-SCA into single column versions of two global atmospheric models as a compressed super-parameterization. ECHAM1 and ACCESS2 are chosen as the host models. A stand-alone single-column model (SCM) is also developed, in which the other physics are prescribed by observations. A simple radiation scheme is added as required. Overall, it is found that, under this configur...
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Quarterly Journal of the Royal Meteorological Society, 1982
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Quarterly Journal of the Royal Meteorological Society, 2010
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Quarterly Journal of the Royal Meteorological Society, 2002
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Monthly Weather Review, 1991
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Journal of Geophysical Research, 2003
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Geophysical Research Letters, 2002
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Geophysical Research Letters, 1996
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Climate Dynamics, 2014
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