Results 71 to 80 of about 21,915 (232)

Changes in Supersaturation Inside and Around Arctic Cirrus during Warm Air Intrusion Events [PDF]

EPJ Web of Conferences
Cirrus clouds play a significant role in the radiative processes in the upper troposphere. Depending on the ambient conditions during their formation their micro- and macro-physical characteristics might differ, leading to different and potentially ...
Dekoutsidis Georgios, Grofl Silke, Wirth Martin   +2 more
doaj   +1 more source

Characteristics and Seasonal Variations of Cirrus Clouds from Polarization Lidar Observations at a 30°N Plain Site

Remote Sensing, 2020
Geometrical and optical characteristics of cirrus clouds were studied based on one year of polarization lidar measurements (3969 h on 228 different days between March 2019 and February 2020) at Wuhan (30.5°N, 114.4°E), China.
Wei Wang, Fan Yi, Fuchao Liu, Yunpeng Zhang, Changming Yu, Zhenping Yin   +5 more
doaj   +1 more source

Nitric acid in cirrus clouds

Geophysical Research Letters, 2006
Uptake of nitric acid (HNO3) in Arctic cirrus ice crystals was observed on 11 February 2003 by in‐situ instruments onboard the M55 Geophysica aircraft. The cirrus cloud with a mean ice water content of 5.4 mg m−3 covered northern Scandinavia for several hours and extended up to the thermal tropopause at 12.3 km.
Voigt, C., Schlager, H., Ziereis, H., Kärcher, B., Luo, B.P., Schiller, C., Krämer, M., Popp, P.J., Irie, H., Kondo, Y.   +9 more
openaire   +2 more sources

Improved Dust Microphysical Retrieval From LiDAR by Introducing a Priori Constraints From In Situ and Laboratory Measurements

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract The accuracy of height‐resolved dust microphysical retrieval from LiDARs has been greatly improved by the recently developed BOREAL (Basic algOrithm for REtrieval of Aerosol with LiDAR) algorithm which describes non‐spherical dust particles with the Irregular‐Hexahedral (IH) model and inverts 3β (backscattering at 355, 532, and 1,064 nm) + 2α (
Yuyang Chang, Qiaoyun Hu, Philippe Goloub, Thierry Podvin   +3 more
wiley   +1 more source

A Numerical Modeling Study on the Earth’s Surface Brightening Effect of Cirrus Thinning

Atmosphere
Cirrus thinning, as one kind of geoengineering approach, not only cools our planet but also enhances the amount of sunlight reaching the Earth’s surface (brightening effect). This study delves into the brightening effect induced by cirrus thinning with a
Xiangjun Shi, Yuxin Liu, Jiaojiao Liu
doaj   +1 more source

ETO lidar studies of cirrostratus altocumulogenitus: Another role for supercooled liquid water in cirrus cloud formation [PDF]

Cirrus clouds have traditionally been viewed as cold, wispy, or stratiform ice clouds, typically displaying optical phenomena such as haloes. A composition entirely of hexagonal ice crystals, of one habit or another could only have a transitory existence
Sassen, Kenneth
core   +1 more source

Could Narrow Bipolar Events Serve as a Distinct Lightning Proxy for Revealing Overshooting Thunderclouds Development?

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Narrow bipolar events (NBEs) are often generated in overshooting thunderclouds (OT) penetrating the stratosphere. However, how and under what conditions OT produces such discharges remains unclear. With 3‐year lightning observations and simultaneous cloud top brightness temperature measurements over South China, we developed a more accurate OT
Baojun Wu, Feifan Liu, Baoyou Zhu, Gaopeng Lu, Wenhao Xu, Ming Luo, Weitao Lyu, Jiuhou Lei   +7 more
wiley   +1 more source

Diffuse far-infrared and ultraviolet emission in the NGC4435/4438 system: tidal stream or Galactic cirrus?

, 2010
We report the discovery of diffuse far-infrared and far-ultraviolet emission projected near the interacting pair NGC4435/4438, in the Virgo cluster.
B. R. Kent, Bendo, Bertin, Boselli, Bot, Boulanger, Brosch, Chung, G. J. Bendo, Gavazzi, Gil de Paz, Giovanelli, Giovanelli, Gordon, Guhathakurta, Haikala, Hibbard, Hoopes, Hota, J. I. Davies, K. G. Isaak, Kenney, Kent, L. Cortese, Lisenfeld, Malin, McConnachie, Mei, Mihos, Morrissey, Oosterloo, Pellerin, Popescu, Reach, Sasseen, Schlegel, Stanimirović, Thilker, Vollmer   +38 more
core   +1 more source

Impact of Aggregational Growth Modeling on the Intensification of Extreme Tropical Cyclones Through Radiative Feedbacks

Atmospheric Science Letters, Volume 27, Issue 4, April 2026.
Ensemble experiments for five recent cases of extreme tropical cyclones (TCs) were conducted using a global high‐resolution climate model. Our results show that a more accurate treatment (the “CTL” setting) of the aggregational growth of ice particles statistically significantly improves the simulation of TC intensity compared with a simplified method (
Yutaro Nirasawa, Tatsuya Seiki, Yohei Yamada, Chieko Suzuki   +3 more
wiley   +1 more source

Optical and morphological properties of Cirrus clouds determined by the high spectral resolution lidar during FIRE [PDF]

Cirrus clouds reflect incoming solar radiation and trap outgoing terrestrial radiation; therefore, accurate estimation of the global energy balance depends upon knowledge of the optical and physical properties of these clouds.
Eloranta, Edwin W., Grund, Christian John   +1 more
core   +1 more source