Proceedings ArticleDOI
Non-correlation between atmospheric extinction coefficient and TOMS aerosol index at the Canarian Observatories
A. M. Varela,Jesus Jimenez Fuensalida,Casiana Muñoz-Tuñón,Jose Miguel Rodriguez Espinosa,Begoña García-Lorenzo,Emilio Cuevas +5 more
TLDR
In this paper, a comparison of both techniques (in situ and remote) is discussed in this paper, showing there is no linear correlation between the aerosol index and the extinction coefficient, and the authors present an interpretation of different situations arising and discuss critically the correct interpretation of the aircraft's images provided by the TOMS in accordance with the dust presence over the Observatories.Abstract:
Satellite data measuring aerosols over the Canary Islands need to be correctly interpreted in accordance with the spatial resolution and spectroscopic channels used. In situ data are still a necessary reference for calibrating and interpreting the aerosol index provided by different spectrometers onboard satellites.
A comparison of both techniques (in situ and remote) is discussed in this paper, showing there is no linear correlation between the aerosol index and the extinction coefficient. Here, we present an interpretation of different situations arising and discuss critically the correct interpretation of the aerosol index and images provided by the TOMS in accordance with the dust presence over the Observatories. The aerosol index measured at sectors centered at both Observatories (Observatorio del Roque de los Muchachos -ORM-, on La Palma and Observatorio del Teide -OT-, on Tenerife) is also compared.read more
Citations
More filters
Journal ArticleDOI
Inventory of African desert dust events over the southwestern Iberian Peninsula in 2000-2005 with an AERONET Cimel Sun photometer
Carlos Toledano,Victoria E. Cachorro,A. M. de Frutos,Mar Sorribas,N. Prats,B. A. de la Morena +5 more
TL;DR: In this article, the authors made an inventory of desert dust events over 6 years corresponding to the period 2000-2005, based on threshold values for the aerosol optical depth (AOD) and Angstrom exponent, the analysis of the size distributions, a manual inspection, and the use of air mass back trajectories as complementary information.
Journal ArticleDOI
Meteorological profiles and optical turbulence in the free atmosphere with NCEP/NCAR data at Oukaïmeden – I. Meteorological parameters analysis and tropospheric wind regimes
TL;DR: In this article, the authors used the National Centers for Environmental Prediction (NCEP)/National Centers for Atmospheric Research (NCAR) Reanalysis data base to study, first, a comparison between balloon sounding made at different stations with coinciding model-based meteorological analysis.
Journal ArticleDOI
Astronomical site selection for Turkey using GIS techniques
Nazim Aksaker,Sinan Kaan Yerli,Mehmet Akif Erdoğan,Erdem Erdi,Kazım Kaba,Tansel Ak,Zeki Aslan,Volkan Bakiş,O. Demircan,S. Evren,Varol Keskin,İbrahim Küçük,Tuncay Özdemir,T. Ozisik,Selim O. Selam +14 more
TL;DR: A site selection of potential observatory locations in Turkey have been carried out by using Multi-Criteria Decision Analysis (MCDA) coupled with Geographical Information Systems (GIS) and satellite imagery which in turn reduced cost and time and increased the accuracy of the final outcome as discussed by the authors.
Journal ArticleDOI
Astronomical Site Selection for Turkey Using GIS Techniques
Nazim Aksaker,Sinan Kaan Yerli,M. Akif Erdogan,Erdem Erdi,Kazım Kaba,Tansel Ak,Zeki Aslan,Volkan Bakiş,Osman Demircan,S. Evren,Varol Keskin,İbrahim Küçük,Tuncay Özdemir,T. Ozisik,Selim O. Selam +14 more
TL;DR: A site selection of potential observatory locations in Turkey have been carried out by using Multi-Criteria Decision Analysis (MCDA) coupled with Geographical Information Systems (GIS) and satellite imagery which in turn reduced cost and time and increased the accuracy of the final outcome as discussed by the authors.
Journal ArticleDOI
Aerosol columnar characterization in Morocco: ELT prospect.
Aziza Bounhir,Zouhair Benkhaldoun,B. Mougenot,Marc Sarazin,El Arbi Siher,Lhoussaine Masmoudi +5 more
TL;DR: In this paper, a linear regression analysis was performed between satellite data and AERONET observations, and good correlations were observed with the Pearson correlation coefficient, R, varying from 0.68 to 0.92 for MODIS, MISR and TOMS OMI.
Related Papers (5)
Overview of the SLOPE I and II campaigns: aerosol properties retrieved with lidar and sun–sky photometer measurements
Jose Antonio Benavent-Oltra,Jose Antonio Benavent-Oltra,Juan Andrés Casquero-Vera,Roberto Román,Hassan Lyamani,Daniel Pérez-Ramírez,María José Granados-Muñoz,Milagros Herrera,Alberto Cazorla,Gloria Titos,Pablo Ortiz-Amezcua,Pablo Ortiz-Amezcua,Andrés Esteban Bedoya-Velásquez,Gregori de Arruda Moreira,Noemí Pérez,Andrés Alastuey,Oleg Dubovik,Juan Luis Guerrero-Rascado,Francisco José Olmo-Reyes,Lucas Alados-Arboledas +19 more