Correlation of Venusian Mesoscale Cloud Morphology Between Images Acquired at Various Wavelengths
Correlation of Venusian Mesoscale Cloud Morphology Between Images Acquired at Various Wavelengths
复制标题
不同波长获取的图像之间金星中尺度云形态的相关性
DOI：
10.1029/2022je007228
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Iwagami N.
中科院分区：
文献类型：
--
作者：
Narita M.;Imamura T.;Lee Y. J.;Watanabe S.;Yamazaki A.;Satoh T.;Taguchi M.;Sato T. M.;Fukuhara T.;Yamada M.;Kouyama T.;Iwagami N.
同时获得的金星白天侧面图像中不同波长的形态差异和相似性可能为云/大气物理和化学提供线索。在这里，我们关注的是小于~ 600公里的空间尺度，其中细胞状或条纹特征似乎在紫外线图像中占主导地位。利用金星人造卫星赤月卫星获取的紫外波长283 nm、365 nm和红外波长0.90、2.02和10 μm图像，建立了波长对（2.02 μm/10 μm、2.02 μm/283 nm、2.02 μm/365 nm、283 nm/365 nm和0.90 μm/2.02 μm）之间的相关系数图。我们的研究结果表明，在2.02 μm （co2吸收量）和10 μm（云顶温度）处获得的图像之间存在明显的负相关，这意味着高空云被绝热膨胀或周围空气冷却。2.02 μm与283 nm （so2吸收量）呈显著负相关，表明so2在云上升过程中被输送到云顶区域。我们观察到在283 nm和365 nm处获得的图像之间存在明显的正相关（未知吸收剂），这意味着未知吸收剂和so2之间存在密切关系，或者283 nm处未知吸收剂的贡献不可忽略。我们发现在0.90 μm（中/下云）和2.02 μm处获得的图像之间的相关性很低，表明云中的垂直耦合很弱。
The differences and similarities in morphologies acquired across various wavelengths in simultaneously obtained Venus' dayside images may provide clues on cloud/atmospheric physics and chemistry. Here, we focus on spatial scales smaller than ∼600 km, where cell‐like or streaky features seem to dominate in ultraviolet images. Using images acquired at ultraviolet wavelengths of 283 nm, 365 nm, and infrared wavelengths of 0.90, 2.02, and 10 μm by the Venus orbiter Akatsuki, correlation coefficient maps between pairs of wavelengths, such as 2.02 μm/10 μm, 2.02 μm/283 nm, 2.02 μm/365 nm, 283 nm/365 nm, and 0.90 μm/2.02 μm were created. Our results show a clear negative correlation between images obtained at 2.02 μm (CO2absorption) and 10 μm (cloud top temperature), meaning that elevated clouds are cooled by adiabatic expansion or the ambient air. A clear negative correlation was found between 2.02 μm and 283 nm (SO2absorption), suggesting that SO2is transported to the cloud top region during cloud ascent. We observed a clear positive correlation between images obtained at 283 and 365 nm (unknown absorber), implying a close relationship between the unknown absorber and SO2or a non‐negligible contribution of the unknown absorber at 283 nm. We found a low correlation between images obtained at 0.90 μm (middle/lower cloud) and 2.02 μm, suggesting a weak vertical coupling in the clouds.
登录
查看更多内容
金星云顶臭氧的发现
影响因子：
3.2
作者：
E. Marcq;L. Baggio;F. Lefévre;A. Stolzenbach;F. Montmessin;D. Belyaev;O. Korablev;J. Bertaux
通讯作者：
J. Bertaux
影响因子：
4.8
作者：
Perez-Hoyos, S.;Sanchez-Lavega, A.;Sanz-Requena, J. F.
通讯作者：
Sanz-Requena, J. F.
DOI：
10.1186/s40623-017-0722-3
发表时间：
2017-10
期刊：
Earth, Planets and Space
影响因子：
--
作者：
T. Imamura;H. Ando;S. Tellmann;M. Pätzold;B. Häusler;A. Yamazaki;Takao M. Sato;K. Noguchi;Y. Futaana;J. Oschlisniok;S. Limaye;R. Choudhary;Y. Murata;H. Takeuchi;C. Hirose;T. Ichikawa;T. Toda;A. Tomiki;T. Abe;Z. Yamamoto;H. Noda;T. Iwata;S. Murakami;T. Satoh;T. Fukuhara;K. Ogohara;K. Sugiyama;H. Kashimura;S. Ohtsuki;S. Takagi;Yukio Yamamoto;N. Hirata;G. Hashimoto;M. Yamada;Makoto Suzuki;N. Ishii;T. Hayashiyama;Yeon Joo Lee;M. Nakamura
通讯作者：
T. Imamura;H. Ando;S. Tellmann;M. Pätzold;B. Häusler;A. Yamazaki;Takao M. Sato;K. Noguchi;Y. Futaana;J. Oschlisniok;S. Limaye;R. Choudhary;Y. Murata;H. Takeuchi;C. Hirose;T. Ichikawa;T. Toda;A. Tomiki;T. Abe;Z. Yamamoto;H. Noda;T. Iwata;S. Murakami;T. Satoh;T. Fukuhara;K. Ogohara;K. Sugiyama;H. Kashimura;S. Ohtsuki;S. Takagi;Yukio Yamamoto;N. Hirata;G. Hashimoto;M. Yamada;Makoto Suzuki;N. Ishii;T. Hayashiyama;Yeon Joo Lee;M. Nakamura
影响因子：
4.8
作者：
Ignatiev, N. I.;Titov, D. V.;Manoel, N.
通讯作者：
Manoel, N.
影响因子：
3.2
作者：
Peralta;J.;A. Sanchez-Lavega;T. Horinouchi;K. McGouldrick;I. Garate-Lopez;E. F. Young;M. A. Bullock;Y.-J. Lee;T. Imamura;T. Satoh;S. S. Limaye
通讯作者：
S. S. Limaye