Banca de QUALIFICAÇÃO: ALINE KELLY DE SOUZA MELO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : ALINE KELLY DE SOUZA MELO
DATA : 24/03/2017
HORA: 08:00
LOCAL: Auditório do CCET
TÍTULO:

VALIDATION OF TOTAL ATTENUATED BACKSCATTERING PROFILES AT 532 NM MEASURED BY THE CALIOP / CALIPSO SYSTEM USING THE LIDAR DUSTER SYSTEM IN THE NATAL – RN

PALAVRAS-CHAVES:

Atmospheric aerosols, Radiation, Remote sensing, Lidar, Natal.

PÁGINAS: 59
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
RESUMO:

Aerosols play an important role in the radiative balance of the Earth. Directly and indirectly, their interaction with radiation plays an essential role in the climate system. Uncertainties regarding the effects of aerosols on the climate are still large, a substantial fraction of this uncertainty has been associated with the dispersion and absorption of solar radiation by anthropogenic solid aerosols and clouds. In order to reduce these uncertainties, NASA, together with CNES, launched in 2006 the CALIPSO satellite, with a Lidar on board called CALIOP, which obtains optical properties information, creating vertical profiles of aerosols and clouds on a global scale. It is possible to validate the optical properties provided by CALIPSO with the aid of other terrestrial instruments that use the same technique, and then obtain a greater precision of the measurements of this system. In this work, a terrestrial remote sensing instrument, DUSTER LIDAR, located in the metropolitan region of Natal/RN, at the Federal University of Rio Grande do Norte, will be used for validation of CALIPSO data. The DUSTER LIDAR/Natal was installed in January 2016 to identify and analyze the optical properties of aerosols in their vertical distribution, and help in understanding the transport processes of aerosols of Saharan mineral dust arriving from the African continent to the Christmas atmosphere. The days of correlative measurements between the Lidar Terrestrial system and the CALIOP will be determined and the data for the days of measurements with little cloudy atmospheric conditions analyzed. The attenuated total backscatter data at 532 nm of the CALIPSO satellite will be analyzed and validated, using the same variable as the DUSTER LIDAR/Natal system. Vertical backscattering profiles of the local atmosphere will be created. Air mass trajectories will also be analyzed using the HYSPLIT model to identify if there is evidence of transport of intercontinental air masses, for example, from Saharan dust from the African continent to Natal/RN, and a Data from CALIPSO for future research. The results are expected to provide a good correlation of the data between the two instruments, which will conclude that CALIOP is an instrument capable of characterizing the aerosol layers on the region. This study will be an important contribution to the development team of CALIOP/CALIPSO, contributing to a regional validation of the product.

MEMBROS DA BANCA:
Externo à Instituição - FÁBIO JULIANO DA SILVA LOPES - IPEN
Interno - 1808127 - JOSE HENRIQUE FERNANDEZ
Presidente - 1879213 - JUDITH JOHANNA HOELZEMANN
Interno - 350691 - MARIA HELENA CONSTANTINO SPYRIDES