Extending LALINET observations to the Upper Troposphere and Lower Stratosphere (UTLS)
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2021
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WORKSHOP ON LIDAR MEASUREMENTS IN LATIN AMERICA, 11th
Resumo
By the end of the XX century the lack of resources in the Latin America was not an obstacle to
create the Latin America Lidar Network (LALINET). The strategy to build LALINET was to create first a lidar
community in the region from the few lidar teams (mainly measuring in the troposphere). A little more than two
decades later LALINET resilience will be tested by the post-COVID-19 era. In Latin America the economic
crisis resulting from the COVID-19 health crisis will reduce notably funds for many activities, including
scientific research. LALINET contingency strategy (to be discussed and approved at the XI WLMLA) has as its
main goal to maintain the level of tropospheric aerosols observations and research activities reached during the
last decade. However, the contingency strategy has several other goals, including extending LALINET
observations to the UTLS making use of the existing lidar facilities. We have been setting up progressively a
program for UTLS regular measurements, making use of the existing lidar facilities. It consist in four main
steps: 1) Lidars currently retrieving tropospheric aerosols profiles will be tested for its signal to noise ratios in
the region of the UTLS to determine if its current characteristics allows retrieving aerosol backscatter profiles in
that region; 2) designing the algorithm to be used and implement the version 1 of LALINET standard
software/scripts to produce UTLS aerosol backscatter and extinction profiles; 3) implement the processing of
UTLS observations at each site having that capabilities; 4) conduct the processing of all the stored profiles at
those sites. Several studies on stratospheric aerosols conducted in the region and abroad have accumulated
know-how that is being and will be applied to the retrieval of UTLS aerosols lidar backscattering and extinction
profiles at LALINET sites. The presentations will show and discuss those studies and also describe the current
status of the four steps listed above.
Como referenciar
ANTUNA-MARRERO, JUAN C.; ARREDONDO, RENE E.; LANDULFO, EDUARDO; VEGA, ALBETH R.; SANCHEZ, JUAN C.A. Extending LALINET observations to the Upper Troposphere and Lower Stratosphere (UTLS): a challenge in the post-COVID-19 era. In: WORKSHOP ON LIDAR MEASUREMENTS IN LATIN AMERICA, 11th, October 19-22, 2021, Punta Arenas, Chile. Abstract... Punta Arenas, Chile: Universidad de Magallanes, 2021. p. 36-36. Disponível em: http://repositorio.ipen.br/handle/123456789/33309. Acesso em: 28 Mar 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.