Search Results

You are looking at 1 - 5 of 5 items for :

  • Infrared radiation x
  • Aerosol-Cloud-Precipitation-Climate Interaction x
  • All content x
Clear All
Nicholas R. Nalli, William L. Smith, and Quanhua Liu

calculating the reflection of atmospheric emitted infrared radiation from a rough water surface . Appl. Opt. , 40 , 1343 – 1353 , doi: 10.1364/AO.40.001343 . Nalli , N. R. , and Coauthors , 2006 : Ship-based measurements for infrared sensor validation during Aerosol and Ocean Science Expedition 2004 . J. Geophys. Res. , 111 , D09S04 , doi: 10.1029/2005JD006385 . Nalli , N. R. , P. J. Minnett , E. Maddy , W. W. McMillan , and M. D. Goldberg , 2008a : Emissivity and reflection model

Full access
Jianjun Liu, Zhanqing Li, and Maureen Cribb

1. Introduction One of the largest uncertainties in climate change studies arises from the poor understanding of aerosol indirect effects (AIE), which are now referred to as aerosol–cloud interactions in the latest Intergovernmental Panel on Climate Change (IPCC) report ( IPCC 2013 ). The scattering and absorption of solar radiation by aerosol particles is called the aerosol direct effect on Earth’s radiation field. The AIE involves more cloud microphysical processes. The first indirect effect

Full access
Jie Peng, Zhanqing Li, Hua Zhang, Jianjun Liu, and Maureen Cribb

is nearly saturated, the negative effect induced by aerosols was small. The invigoration effect can cause cloud tops to reach greater heights while keeping their albedo fixed at the nearly saturated value for thick clouds. The colder cloud tops emit less thermal radiation to space, so they induce a positive RF. However, for optically thinner clouds, both shortwave (SW) and longwave (LW) forcing can be strong. The AIV can produce warming or cooling based on the particular combination of macro- and

Full access
Tianmeng Chen, Jianping Guo, Zhanqing Li, Chuanfeng Zhao, Huan Liu, Maureen Cribb, Fu Wang, and Jing He

1. Introduction Aerosols can play an important role in Earth’s climate by altering the energy and water cycles ( Ramanathan et al. 2001 ; Rosenfeld et al. 2014 ). Various effects have been proposed that are now broadly referred to as the aerosol–radiation interactions (ARI) and aerosol–cloud–interactions (ACI) ( IPCC 2013 ). The mechanisms for ARI have been much better understood than ACI, even though very large uncertainties still exist in the former chiefly owing to a poor knowledge of the

Full access
Yvonne Boose, Zamin A. Kanji, Monika Kohn, Berko Sierau, Assaf Zipori, Ian Crawford, Gary Lloyd, Nicolas Bukowiecki, Erik Herrmann, Piotr Kupiszewski, Martin Steinbacher, and Ulrike Lohmann

-R), which measures the attenuation of beta radiation, emitted by a krypton-85 source, due to aerosol particles that are sampled on a filter tape. 3) Cloud probes: Times of cloud presence During CLACE2013 and CLACE2014, a particulate volume monitor (PVM-100; Gerber Scientific, Inc., United States) and a cloud droplet probe (CDP; Droplet Measurement Technologies, United States) measured cloud liquid water content (LWC). The PVM-100 measures LWC based on the scattering of light (780-nm laser) in the

Full access