Results 11 to 20 of about 298,312 (304)

A MULTI-TEMPORAL APPROACH FOR DETECTING SNOW COVER AREA USING GEOSTATIONARY IMAGERY DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In this study, we attempt to detect snow cover area using multi-temporal geostationary satellite imagery based on the difference of spectral and temporal characteristics between snow and clouds. The snow detection method is based on sequential processing
H.-S. Lee, K.-S. Lee
doaj   +1 more source

Cloud cover: monitoring large-scale clouds with Varanus [PDF]

Journal of Cloud Computing, 2015
Cloud computing has quickly become the de facto means to deploy large scale systems in a robust and cost effective manner. Central to the maintenance of large scale systems is monitoring which allows for the detection of faults, errors and anomalies and the enacting of optimisation and corrective measures.
Ward, Jonathan Stuart, Barker, Adam David   +1 more
openaire   +3 more sources

Understanding London's summertime cloud cover [PDF]

Quarterly Journal of the Royal Meteorological Society, 2021
AbstractCities are a source of complex land–atmosphere interactions. Spatial differences in the energy balance and enhanced surface roughness interact with the atmosphere to alter clouds and precipitation. Here, we explore how London (UK) alters cloud formation during the spring and summer. The Met Office's high‐resolution operational forecasts predict
Natalie E. Theeuwes, Ian A. Boutle, Peter A. Clark, Sue Grimmond   +3 more
openaire   +1 more source

Cloud–Snow Confusion with MODIS Snow Products in Boreal Forest Regions

Remote Sensing, 2022
Reliable cloud masks in Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover products have a high potential to improve the retrieval of snow properties.
Xiaoyan Wang, Chao Han, Zhiqi Ouyang, Siyong Chen, Hui Guo, Jian Wang, Xiaohua Hao   +6 more
doaj   +1 more source

Estudo da variabilidade da cobertura de nuvens altas na Amazônia Central Study of the variability of high cloud covering over Central Amazon region

Acta Amazonica, 2007
Foram estudados os fenômenos meteorológicos que ocorrem na Amazônia Central (Manaus) utilizando-se um conjunto de imagens de satélites, com o objetivo de identificar as oscilações que mais contribuem para a variabilidade da cobertura de nuvens, e ...
Maria Aparecida Senaubar Alves, Luiz Augusto Toledo Machado, Gannabathula Sri Sesha Durga Prasad   +2 more
doaj   +1 more source

Clouds cover variability in São Paulo

Revista Ambiente & Água, 2016
Clouds cover observations are performed by visual inspection which determines the fraction of the sky that is overcast. However, visual observation of clouds cover is a very subjective method, and can vary significantly among observers.
Luciana Machado de Moura, Fernando Ramos Martins, Arcilan Trevenzoli Assireu   +2 more
doaj   +1 more source

HIPASS High-Velocity Clouds: Properties of the Compact and Extended Populations [PDF]

, 2001
A catalog of Southern anomalous-velocity HI clouds at Decl. < +2 deg is presented, based on data from the HI Parkes All-Sky Survey (HIPASS). The improved sensitivity (5sigma: T_B = 0.04 K) and resolution (15.5') of the HIPASS data results in a ...
A. E. Wright, B. K. Gibson, B. Koribalski, Bajaja E., Braun R., Braun R., Bruns C., D. F. Malin, D. G. Barnes, E. M. Sadler, Einasto J., F. Stootman, G. D. Banks, H. Jerjen, Hulsbosch A. N. M., I. Stewart, J. R. Mould, K. C. Freeman, Kilborn V., L. Staveley-Smith, M. E. Putman, M. J. Disney, M. J. Drinkwater, M. Marquarding, Mirabel I. F., Oort J. H., Oort J. H., Oort J. H., P. A. Henning, P. J. Boyce, P. M. Knezek, Putman M. E., R. Bhathal, R. Braun, R. D. Ekers, R. F. Minchin, R. L. Webster, R. M. Price, Rees M. J., S. D. Ryder, Saraber M. J. M., Stoppelenburg P. S., T. Oosterloo, V. A. Kilborn, V. de Heij, Verschuur G. L., W. B. Burton, W. J. G. de Blok, Wakker B. P., Wakker B. P., Wakker B. P., Wannier P., Zwaan M. A.   +52 more
core   +3 more sources

3D LAND COVER CLASSIFICATION BASED ON MULTISPECTRAL LIDAR POINT CLOUDS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Multispectral Lidar System can emit simultaneous laser pulses at the different wavelengths. The reflected multispectral energy is captured through a receiver of the sensor, and the return signal together with the position and orientation information of ...
X. Zou, X. Zou, X. Zou, G. Zhao, J. Li, Y. Yang, Y. Yang, Y. Fang, Y. Fang   +8 more
doaj   +1 more source

Generation of Anisotropic Cloud Cover

Microsystems, Electronics and Acoustics, 2023
У цій статті представлено розробку математичної моделі для генерації та аналізу зображень хмарного покриву, спеціально призначеної для покращення дослідження часткового затінення фотоелектричних систем. Розробка моделі включала ретельний аналіз реальних зображень хмарного покриву, з особливим акцентом на відтворення їх анізотропних спектральних ...
Martyniuk, V. I., Zhuikov, V. Ya.
  +7 more sources

Vertical grid refinement for stratocumulus clouds in the radiation scheme of the global climate model ECHAM6.3-HAM2.3-P3 [PDF]

Geoscientific Model Development, 2021
In this study, we implement a vertical grid refinement scheme in the radiation routine of the global aerosol–climate model ECHAM-HAM, aiming to improve the representation of stratocumulus clouds and address the underestimation of their cloud cover.
P. Pelucchi, P. Pelucchi, D. Neubauer, U. Lohmann   +3 more
doaj   +1 more source