@inproceedings{oai:jaxa.repo.nii.ac.jp:00020565, author = {光田, 千紘 and 横畠, 徳太 and 倉本, 圭 and Mitsuda, Chihiro and Yokohata, Tokuta and Kuramoto, Kiyoshi}, book = {第38回月・惑星シンポジウム, Proceedings of the 38th ISAS Lunar and Planetary Symposium}, month = {Mar}, note = {The scattering greenhouse effect of CO2 ice cloud has been proposed as a mechanism to make the Martian climate warm enough to support flowing water under a faint young Sun. We construct a one-dimensional radiative model for the CO2-H2O atmosphere and analyze cloud stability on the basis of the numerical estimation of the ice condensation or evaporation rate in a cloud layer. Our numerical analysis suggests that a CO2 ice cloud layer is stabilized and the global mean surface temperature rises above melting point of H2O when the atmospheric pressure is larger than 1 bar and the column number density of cloud condensation nuclei is kept at nearby 10(exp 10) m(exp -2). A negative feedback mechanism between the particle size change and the radiative cooling may stabilize warm climate on early Mars., 資料番号: AA0063350050}, pages = {184--187}, publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)}, title = {Scattering greenhouse effect of CO2 ice cloud and climate stability on early Mars}, year = {2006} }