Zobrazeno 1 - 10
of 30
pro vyhledávání: '"J. C. Antuña"'
Autor:
S. Herrero-Anta, R. Román, D. Mateos, R. González, J. C. Antuña-Sánchez, M. Herreras-Giralda, A. F. Almansa, D. González-Fernández, C. Herrero del Barrio, C. Toledano, V. E. Cachorro, Á. M. de Frutos
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 4423-4443 (2023)
This study explores the potential to retrieve aerosol properties with the GRASP algorithm (Generalized Retrieval of Atmosphere and Surface Properties) using as input measurements of zenith sky radiance (ZSR), which are sky radiance values measured in
Externí odkaz:
https://doaj.org/article/9a1b5980c0cf483cbf9e503659f4b804
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 1689-1712 (2022)
The aim of this work is to describe the features of and to validate a simple, fast, accurate, and physically based spectral radiative transfer model in the solar wavelength range under clear skies. The model, named SSolar-GOA (the first “S” stand
Externí odkaz:
https://doaj.org/article/88d86edb895d46f9a52ab76287348236
Autor:
R. Román, J. C. Antuña-Sánchez, V. E. Cachorro, C. Toledano, B. Torres, D. Mateos, D. Fuertes, C. López, R. González, T. Lapionok, M. Herreras-Giralda, O. Dubovik, Á. M. de Frutos
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 407-433 (2022)
This paper explores the potential of all-sky cameras to retrieve aerosol properties with the GRASP code (Generalized Retrieval of Atmosphere and Surface Properties). To this end, normalized sky radiances (NSRs) extracted from an all-sky camera at thr
Externí odkaz:
https://doaj.org/article/477ff0d3321d4bed8246d0957219ce83
Autor:
J. C. Antuña-Sánchez, R. Román, V. E. Cachorro, C. Toledano, C. López, R. González, D. Mateos, A. Calle, Á. M. de Frutos
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 2201-2217 (2021)
All-sky cameras are frequently used to detect cloud cover; however, this work explores the use of these instruments for the more complex purpose of extracting relative sky radiances. An all-sky camera (SONA202-NF model) with three colour filters narr
Externí odkaz:
https://doaj.org/article/12d417dfe05542df801e11e95fa8e089
Autor:
S. S. Dhomse, G. W. Mann, J. C. Antuña Marrero, S. E. Shallcross, M. P. Chipperfield, K. S. Carslaw, L. Marshall, N. L. Abraham, C. E. Johnson
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 13627-13654 (2020)
Accurately quantifying volcanic impacts on climate is a key requirement for robust attribution of anthropogenic climate change. Here we use the Unified Model – United Kingdom Chemistry and Aerosol (UM-UKCA) composition–climate model to simulate t
Externí odkaz:
https://doaj.org/article/1b6d3f2ffcc74a1d8c7c22ee983f4c9d
Autor:
R. González, C. Toledano, R. Román, D. Fuertes, A. Berjón, D. Mateos, C. Guirado-Fuentes, C. Velasco-Merino, J. C. Antuña-Sánchez, A. Calle, V. E. Cachorro, Á. M. de Frutos
Publikováno v:
Geoscientific Instrumentation, Methods and Data Systems, Vol 9, Pp 417-433 (2020)
The University of Valladolid (UVa, Spain) has managed a calibration center of the AErosol RObotic NETwork (AERONET) since 2006. The CÆLIS software tool, developed by UVa, was created to manage the data generated by AERONET photometers for calibratio
Externí odkaz:
https://doaj.org/article/87589e2eb2214d11bdaca4517207d30a
Autor:
J. C. Antuña-Marrero, V. Cachorro Revilla, F. García Parrado, Á. de Frutos Baraja, A. Rodríguez Vega, D. Mateos, R. Estevan Arredondo, C. Toledano
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 2279-2293 (2018)
In the present study, we report the first comparison between the aerosol optical depth (AOD) and Ångström exponent (AE) of the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on the Terra (AODt) and Aqua (AODa) satellites and t
Externí odkaz:
https://doaj.org/article/44cc0921ed0648719551a0ace649e397
Autor:
B. Barja, J. C. Antuña
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 16, Pp 8625-8634 (2011)
The effect of optically thin cirrus clouds on solar radiation is analyzed by numerical simulation, using lidar measurements of cirrus conducted at Camagüey, Cuba. Sign and amplitude of the cirrus clouds effect on solar radiation is evaluated. There
Externí odkaz:
https://doaj.org/article/575089ba251544648b74ea96d4fc8b41
Autor:
L. Gimeno, L. de la Torre, M. L. R. Liberato, C. A. F. Marques, J. C. Antuña, J. A. Añel, J. M. Castanheira
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 23, Pp 9143-9153 (2009)
A strengthening of the equatorward temperature gradient in the upper troposphere/lower stratosphere (UTLS), at subtropics and midlatitudes, is consistently reproduced in several modelling studies of the atmospheric response to the increase of greenho
Externí odkaz:
https://doaj.org/article/89211848359447719b1521f2cd0a9691
Publikováno v:
Annales Geophysicae, Vol 24, Pp 2445-2449 (2006)
This paper describes the effect of missing sounding reports on temperature and pressure mean values for mandatory levels using the aerological information from the Camagüey Meteorological Centre. Also it is described the effect of missing data on
Externí odkaz:
https://doaj.org/article/3cec64f0606047538cd50d6c6748edec