MODIS observations of enhanced clear sky reflectance near clouds

T Várnai, A Marshak - Geophysical Research Letters, 2009 - Wiley Online Library
Several recent studies have found that the brightness of clear sky systematically increases
near clouds. Understanding this increase is important both for a correct interpretation of …

Benchmarking of six cloud segmentation algorithms for ground-based all-sky imagers

M Hasenbalg, P Kuhn, S Wilbert, B Nouri… - Solar Energy, 2020 - Elsevier
The detection and segmentation of clouds in images taken by ground based cameras is of
utmost importance for a large number of applications including all-sky imager based …

Reconciling contrasting relationships between relative dispersion and volume‐mean radius of cloud droplet size distributions

C Lu, Y Liu, SS Yum, J Chen, L Zhu… - Journal of …, 2020 - Wiley Online Library
Cloud droplet spectral relative dispersion is critical to parameterizations of cloud radiative
properties, warm‐rain initiation, and aerosol‐cloud interactions in models; however, there is …

Observational relationship between entrainment rate and environmental relative humidity and implications for convection parameterization

C Lu, C Sun, Y Liu, GJ Zhang, Y Lin… - Geophysical …, 2018 - Wiley Online Library
Entrainment rate is a critical but highly uncertain quantity in convective parameterizations;
especially, the effects of environmental relative humidity on entrainment rate are …

The thin border between cloud and aerosol: Sensitivity of several ground based observation techniques

J Calbó, CN Long, JA González, J Augustine… - Atmospheric …, 2017 - Elsevier
Cloud and aerosol are two manifestations of what it is essentially the same physical
phenomenon: a suspension of particles in the air. The differences between the two come …

The fine-scale structure of the trade wind cumuli over Barbados–an introduction to the CARRIBA project

H Siebert, M Beals, J Bethke, E Bierwirth… - Atmospheric …, 2013 - acp.copernicus.org
The CARRIBA (Cloud, Aerosol, Radiation and tuRbulence in the trade wInd regime over
BArbados) project, focused on high resolution and collocated measurements of …

Global CALIPSO observations of aerosol changes near clouds

T Varnai, A Marshak - IEEE Geoscience and Remote Sensing …, 2010 - ieeexplore.ieee.org
Several recent studies have found that clouds are surrounded by a transition zone of rapidly
changing aerosol optical properties and particle size. Characterizing this transition zone is …

[HTML][HTML] Assessment of cloudless-to-cloud transition zone from downwelling longwave irradiance measurements

JA González, J Calbó, Y Sola - Atmospheric Research, 2023 - Elsevier
The transition zone has been defined as corresponding to atmospheric conditions between
cloud-free (albeit containing a suspension of dry particles, ie aerosol) and clouds (air …

Spectral radiation measurements and analysis in the ARM Program

EJ Mlawer, DD Turner - Meteorological Monographs, 2016 - journals.ametsoc.org
The spectral signatures of radiation produced by various atmospheric constituents are key to
our understanding of many issues related to climate and weather. Groundbased …

High‐resolution photography of clouds from the surface: Retrieval of optical depth of thin clouds down to centimeter scales

SE Schwartz, D Huang… - Journal of Geophysical …, 2017 - Wiley Online Library
This paper describes the approach and presents initial results, for a period of several
minutes in north central Oklahoma, of an examination of clouds by high‐resolution digital …