Parameterization of solar heating by the near IR CO2 bands in the mesosphere

Ogibalov, V. P.; Fomichev, V. I.

doi:10.1016/s0273-1177(03)80069-8

Cited by 25 publications

(30 citation statements)

References 5 publications

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“…The actual energy available from direct solar heating is scaled by the stored potential of chemical energy and the energy loss due to air glow emission [Mlynczak and Solomon, 1993]. Near-infrared CO 2 heating is parameterized as discussed in Ogibalov and Fomichev [2003]. Variable solar activity also alters the strength of solar absorption from the near infrared to the UV and is parameterized following Lean et al [1997].…”

Section: Lima Modelmentioning

confidence: 99%

Temperature trends in the midlatitude summer mesosphere

2013

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Here we analyze the contribution of varying concentrations of CO 2 and O 3 to the temperature trend in the mesosphere. It is important to distinguish between trends on pressure altitudes, z p , and geometrical altitudes, z geo , where the latter includes the effect of shrinking due to cooling at lower heights. For the period 1961-2009, temperature trends on geometrical and pressure altitudes can differ by as much as -0.9 K/dec in the mesosphere. Temperature trends reach approximately -1.3˙0.11 K/dec at z p 60 km and -1.8˙0.18 K/dec at z geo 70 km, respectively. CO 2 is the main driver of these trends in the mesosphere, whereas O 3 contributes approximately one third, both on geometrical and pressure heights. Depending on the time period chosen, linear temperature trends can vary substantially. Altitudes of pressure levels in the mesosphere decrease by up to several hundred meters. We have performed long-term runs with LIMA applying twentieth century reanalysis dating back to 1871. Again, trends are nonuniform with time. Since the late nineteenth century, temperatures in the mesosphere have dropped by approximately 5-7 K on pressure altitudes and up to 10-12 K on geometrical altitudes.

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Section: Lima Modelmentioning

confidence: 99%

Temperature trends in the midlatitude summer mesosphere

2013

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“…Between 0.1 and 0.02 hPa, the infrared radiative fluxes are calculated as a linear combination of both schemes. A parameterization of solar heating by CO 2 absorption in the near infrared according to the NONLTE scheme of Ogibalov and Fomichev (2003) is utilized. This contribution is particularly important at heights of around 75 km (ϳ0.02 hPa), where it can account for up to 30% of the total radiative heating (Fomichev et al 2004b).…”

Section: A Radiative Heating and Coolingmentioning

confidence: 99%

The HAMMONIA Chemistry Climate Model: Sensitivity of the Mesopause Region to the 11-Year Solar Cycle and CO2 Doubling

et al. 2006

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This paper introduces the three-dimensional Hamburg Model of the Neutral and Ionized Atmosphere (HAMMONIA), which treats atmospheric dynamics, radiation, and chemistry interactively for the height range from the earth's surface to the thermosphere (approximately 250 km). It is based on the latest version of the ECHAM atmospheric general circulation model of the Max Planck Institute for Meteorology in Hamburg, Germany, which is extended to include important radiative and dynamical processes of the upper atmosphere and is coupled to a chemistry module containing 48 compounds. The model is applied to study the effects of natural and anthropogenic climate forcing on the atmosphere, represented, on the one hand, by the 11-yr solar cycle and, on the other hand, by a doubling of the present-day concentration of carbon dioxide. The numerical experiments are analyzed with the focus on the effects on temperature and chemical composition in the mesopause region. Results include a temperature response to the solar cycle by 2 to 10 K in the mesopause region with the largest values occurring slightly above the summer mesopause. Ozone in the secondary maximum increases by up to 20% for solar maximum conditions. Changes in winds are in general small. In the case of a doubling of carbon dioxide the simulation indicates a cooling of the atmosphere everywhere above the tropopause but by the smallest values around the mesopause. It is shown that the temperature response up to the mesopause is strongly influenced by changes in dynamics. During Northern Hemisphere summer, dynamical processes alone would lead to an almost global warming of up to 3 K in the uppermost mesosphere.

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“…Neglect of non-LTE processes leads to overestimation of the heating rates in the mesosphere by a factor of 3 -6. Ogibalov and Fomichev [2003] have recently developed the first NIR CO 2 bands parameterization applicable for the Earth's mesosphere. The parameterization provides a very accurate approximation of the heating rates in the mesosphere for the current CO 2 amount.…”

Section: Discussionmentioning

confidence: 99%

“…[5] Ogibalov and Fomichev [2003] have developed the non-LTE parameterization for the NIR CO 2 heating in the mesosphere. It is based on and tested against the reference scheme of Ogibalov et al [2000].…”

Section: Heating By the Near-ir Co 2 Bands And Its Parameterizationmentioning

confidence: 99%

“…In this case the NIR CO 2 heating can even dominate the O 3 heating in the upper mesosphere, which is unrealistic. Recently Ogibalov and Fomichev [2003] have developed what we believe is the first parameterization for the NIR CO 2 bands that includes non-LTE treatment and applicable for the Earth's mesosphere. In this letter, we will briefly present the new parameterization and also examine the role of the NIR CO 2 bands for the mesospheric energy balance for the current and doubled CO 2 amounts with use of the Canadian Middle Atmosphere Model (CMAM).…”

Section: Introductionmentioning

confidence: 99%

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Solar heating by the near‐IR CO₂ bands in the mesosphere

Fomichev

Ogibalov

Beagley

2004

Geophysical Research Letters

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[1] Absorption of solar energy by the near-infrared (NIR) CO 2 bands provides an important source of heating in the mesosphere. At 60 -85 km, this source exceeds 1 K day À1 and contributes up to 30% of the total solar heating. Calculation of the solar heating in the NIR CO 2 bands requires consideration of complex non-local thermodynamic equilibrium (non-LTE) processes. The small energy effect, narrow region of importance, and the necessity to consider non-LTE effects, have accounted for the absence of an adequate parameterization for the NIR CO 2 bands. Recently a parameterization has been developed and implemented into the Canadian Middle Atmosphere Model. Numerical experiments with this model have shown that inclusion of the NIR CO 2 heating results in a significant warming of up to 8 K in the mesosphere for the current CO 2 amount but does not significantly change the model thermal response induced by the doubling of CO 2 .

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Parameterization of solar heating by the near IR CO2 bands in the mesosphere

Cited by 25 publications

References 5 publications

Temperature trends in the midlatitude summer mesosphere

Temperature trends in the midlatitude summer mesosphere

The HAMMONIA Chemistry Climate Model: Sensitivity of the Mesopause Region to the 11-Year Solar Cycle and CO2 Doubling

Solar heating by the near‐IR CO₂ bands in the mesosphere

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Parameterization of solar heating by the near IR CO2 bands in the mesosphere

Cited by 25 publications

References 5 publications

Temperature trends in the midlatitude summer mesosphere

Temperature trends in the midlatitude summer mesosphere

The HAMMONIA Chemistry Climate Model: Sensitivity of the Mesopause Region to the 11-Year Solar Cycle and CO2 Doubling

Solar heating by the near‐IR CO2 bands in the mesosphere

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Product

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Solar heating by the near‐IR CO₂ bands in the mesosphere