Results 21 to 30 of about 14,728 (225)

Identifying the key challenges for fog and low stratus forecasting in complex terrain [PDF]

Quarterly Journal of the Royal Meteorological Society, 2020
Forecasting fog and low stratus (FLS) accurately poses a challenge to current numerical weather prediction models, despite many advancements in recent years. We present a novel method to quantify FLS extent bias by comparing forecasts with satellite observations.
Stephanie Westerhuis, Oliver Fuhrer, Jan Cermak, Werner Eugster   +3 more
openaire   +3 more sources

Numerical simulations of aerosol radiative effects and their impact on clouds and atmospheric dynamics over southern West Africa [PDF]

Atmospheric Chemistry and Physics, 2018
Southern West Africa (SWA) is undergoing rapid and significant socioeconomic changes associated with a massive increase in air pollution. Still, the impact of atmospheric pollutants, in particular that of aerosol particles, on weather and climate in ...
K. Deetz, H. Vogel, P. Knippertz, B. Adler, J. Taylor, H. Coe, K. Bower, S. Haslett, M. Flynn, J. Dorsey, I. Crawford, C. Kottmeier, B. Vogel   +12 more
doaj   +1 more source

Conceptual model of diurnal cycle of low-level stratiform clouds over southern West Africa [PDF]

Atmospheric Chemistry and Physics, 2020
The DACCIWA (Dynamics Aerosol Chemistry Cloud Interactions in West Africa) project and the associated ground-based field experiment, which took place during summer 2016, provided a comprehensive dataset on the low-level stratiform clouds (LLSCs), which ...
F. Lohou, N. Kalthoff, B. Adler, K. Babić, C. Dione, M. Lothon, X. Pedruzo-Bagazgoitia, M. Zouzoua   +7 more
doaj   +1 more source

Estimating drizzle drop size and precipitation rate using two-colour lidar measurements [PDF]

, 2010
A method to estimate the size and liquid water content of drizzle drops using lidar measurements at two wavelengths is described. The method exploits the differential absorption of infrared light by liquid water at 905 nm and 1.5 μm, which leads to a ...
Hogan, R. J., Illingworth, A. J., O'Connor, E. J., Westbrook, C. D.   +3 more
core   +2 more sources

Optical Thickness and Effective Radius Retrievals of Low Stratus and Fog from MTSAT Daytime Data as a Prerequisite for Yellow Sea Fog Detection

Remote Sensing, 2015
Operational nowcasting techniques for sea fog over the Yellow Sea rely on data from weather satellites because ground-based observations are hardly available.
Li Yi, Boris Thies, Suping Zhang, Xiaomeng Shi, Jörg Bendix   +4 more
doaj   +1 more source

Comparison of Time Domain and Spectral Domain Optical Coherence Tomography in Measurement of Macular Thickness in Macular Edema Secondary to Diabetic Retinopathy and Retinal Vein Occlusion

Journal of Ophthalmology, 2012
Purpose. To evaluate macular thickness, agreement, and intraclass repeatability in three optical coherence tomography (OCT) devices: the time domain (TD) Stratus OCT and two spectral domain (SD) OCTs, Spectralis and Cirrus SD-OCT, in eyes with macular ...
Elham Hatef, Afsheen Khwaja, Zubir Rentiya, Mohamed Ibrahim, Matthew Shulman, Peykan Turkcuoglu, Yasir Sepah, Jianmin Wang, Roomasa Channa, Millena Bittencourt, Abeer Akhtar, Jangwon Heo, Diana V. Do, Quan Dong Nguyen   +13 more
doaj   +1 more source

Daytime Low Stratiform Cloud Detection on AVHRR Imagery

Remote Sensing, 2014
The near-real time retrieval of low stratiform cloud (LSC) coverage is of vital interest for such disciplines as meteorology, transport safety, economy and air quality.
Jan Pawel Musial, Fabia Hüsler, Melanie Sütterlin, Christoph Neuhaus, Stefan Wunderle   +4 more
doaj   +1 more source

Applying deep learning to NASA MODIS data to create a community record of marine low-cloud mesoscale morphology [PDF]

Atmospheric Measurement Techniques, 2020
Marine low clouds display rich mesoscale morphological types and distinct spatial patterns of cloud fields. Being able to differentiate low-cloud morphology offers a tool for the research community to go one step beyond bulk cloud statistics such as ...
T. Yuan, T. Yuan, H. Song, R. Wood, J. Mohrmann, K. Meyer, L. Oreopoulos, S. Platnick   +7 more
doaj   +1 more source

Verification of cloudiness and radiation forecasts in the greater Alpine region

Meteorologische Zeitschrift, 2016
The skill of ECMWF operational cloudiness and radiation forecasts is evaluated for the greater Alpine region using ground-based and satellite observations. Ground-based observations are the total cloud cover reported by SYNOP stations. The satellite data
Thomas Haiden, Jörg Trentmann
doaj   +1 more source

Re‐Evaluation of Low Cloud Amount Relationships With Lower‐Tropospheric Stability and Estimated Inversion Strength

Geophysical Research Letters, 2022
Lower‐tropospheric stability (LTS) and estimated inversion strength (EIS) have a widely accepted relationship with low cloud amount and are key observational foundations for understanding and modeling low‐level stratiform clouds.
Lauren Cutler, Michael A. Brunke, Xubin Zeng   +2 more
doaj   +1 more source