Radiative energy balance of Venus based on improved models of the middle and lower atmosphere
Radiative energy balance of Venus based on improved models of the middle and lower atmosphere
复制标题
基于中低层改进模型的金星辐射能量平衡
DOI:
10.1016/j.icarus.2016.02.048
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发表时间:
2016
期刊:
影响因子:
3.2
通讯作者:
Häusler
中科院分区:
文献类型:
--
作者:
Kappel;Tellmann;Arnold;Piccioni. G;Drossart;Häusler
Thermal cooling rates QCand solar heating rates QHin the atmosphere of Venus at altitudes between 0 and 100 km are investigated using the radiative transfer and radiative balance simulation techniques described by Haus et al. (2015b, 2016). QCstrongly responds to temperature profile and cloud parameter changes, while QHis less sensitive to these parameters. The latter mainly depends on solar insolation conditions and the unknown UV absorber distribution.A parameterization approach is developed that permits a fast and reliable calculation of temperature change rates Q for different atmospheric model parameters and that can be applied in General Circulation Models to investigate atmospheric dynamics. A separation of temperature, cloud parameter, and unknown UV absorber influences is performed. The temperature response parameterization relies on a specific altitude and latitude-dependent cloud model. It is based on an algorithm that characterizes Q responses to a broad range of temperature perturbations at each level of the atmosphere using the Venus International Reference Atmosphere (VIRA) as basis temperature model. The cloud response parameterization considers different temperature conditions and a range of individual cloud mode factors that additionally change cloud optical depths as determined by the initial latitude-dependent model. A QHresponse parameterization for abundance changes of the unknown UV absorber is also included. Deviations between accurate calculation and parameterization results are in the order of a few tenths of K/day at altitudes below 90 km.The parameterization approach is used to investigate atmospheric radiative equilibrium (RE) conditions. Polar mesospheric RE temperatures above the cloud top are up to 70 K lower and equatorial temperatures up to 10 K higher than observed values. This radiative forcing field is balanced by dynamical processes that maintain the observed thermal structure.
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DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
R. Haus;H. Goering
通讯作者:
H. Goering
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
M. Tomasko;L. Doose;Peter H. Smith
通讯作者:
Peter H. Smith
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
V. Moroz;L. Zasova
通讯作者:
L. Zasova
影响因子:
--
作者:
F. Taylor;R. Beer;M. Chahine;D. Diner;L. Elson;R. Haskins;D. Mccleese;J. Martonchik;P. E. Reichley;S. P. Bradley;J. Delderfield;J. Schofield;C. B. Farmer;L. Froidevaux;J. Leung;M. Coffey;J. Gille
通讯作者:
J. Gille
影响因子:
0.6
作者:
Zasova, L. V.;Moroz, V. I.;Maiorov, B. S.
通讯作者:
Maiorov, B. S.