A comparative analysis of the temperature behavior and multiple tropopause events derived from GPS, radiosonde and reanalysis datasets over Argentina, as an example of Southern mid latitudes

Abstract: Recent research on climatologies for temperature structure and tropopause parameters in the tropics, based on radiosonde, satellites data and model reanalysis show good agreement between radiosonde (RS) and data derived from remote sounding, such as GPS Radio Occultation (GPS RO), and rean...

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Autores principales: Lakkis, Susan Gabriela, Canziani, Pablo O.
Otros Autores: PEPACG – UCA/CONICET (Programa para el Estudio de Procesos Atmosféricos en el Cambio Global)
Formato: Artículo
Lenguaje:Inglés
Publicado: Universidad Católica Argentina 2019
Materias:
TELEDETECCION
TROPOPAUSA
GPS
CLIMATOLOGIA
Acceso en línea:https://repositorio.uca.edu.ar/handle/123456789/5426
Aporte de:
Repositorio Institucional de la Universidad Católica Argentina (UCA) de Universidad Católica Argentina
id I33-R139123456789-5426
record_format dspace
institution Universidad Católica Argentina
institution_str I-33
repository_str R-139
collection Repositorio Institucional de la Universidad Católica Argentina (UCA)
language Inglés
topic TELEDETECCION
TROPOPAUSA
GPS
CLIMATOLOGIA
spellingShingle TELEDETECCION
TROPOPAUSA
GPS
CLIMATOLOGIA
Lakkis, Susan Gabriela
Canziani, Pablo O.
A comparative analysis of the temperature behavior and multiple tropopause events derived from GPS, radiosonde and reanalysis datasets over Argentina, as an example of Southern mid latitudes
topic_facet TELEDETECCION
TROPOPAUSA
GPS
CLIMATOLOGIA
description Abstract: Recent research on climatologies for temperature structure and tropopause parameters in the tropics, based on radiosonde, satellites data and model reanalysis show good agreement between radiosonde (RS) and data derived from remote sounding, such as GPS Radio Occultation (GPS RO), and reanalysis. The agreement is remarkably good over and immediately near the tropics. However, in the southern extra tropical region, especially at medium and high latitudes, there are often considerable differences in the temperature profiles as latitudes increases, which depends on the variability of location and evolution of the tropopause. The purpose of this work is to compare the behaviour of temperature profiles derived from GPS RO, daily and monthly ERA 40 reanalysis means and nearby radiosonde measurements in the southern extra tropical region. Argentina serves as an example of latitudes between 30- 60S. The data covers 2001-2002 and analyses parameters such as temperature, pressure, and height derived rom radiosonde and satellite data in order to detect single and multiple tropopause events. The results show that in most cases are GPS RO more closely related to RS measurements than to reanalysis profiles, both for daily values, monthly means and their standard deviations. However, GPS RO deviations increase with respect to RS for heights above the tropopause, i.e., in the stratosphere, and decrease into the troposphere. Radiosonde and GPS appear to be in good agreement for tropopause temperatures and heights estimates when a single tropopause (LRT1) is considered, but with decreasing agreement as latitudes increase. Furthermore, while single and double tropopause events can be detected in RS observations this is less common for the GPS RO retrievals.
author2 PEPACG – UCA/CONICET (Programa para el Estudio de Procesos Atmosféricos en el Cambio Global)
author_facet PEPACG – UCA/CONICET (Programa para el Estudio de Procesos Atmosféricos en el Cambio Global)
Lakkis, Susan Gabriela
Canziani, Pablo O.
format Artículo
author Lakkis, Susan Gabriela
Canziani, Pablo O.
author_sort Lakkis, Susan Gabriela
title A comparative analysis of the temperature behavior and multiple tropopause events derived from GPS, radiosonde and reanalysis datasets over Argentina, as an example of Southern mid latitudes
title_short A comparative analysis of the temperature behavior and multiple tropopause events derived from GPS, radiosonde and reanalysis datasets over Argentina, as an example of Southern mid latitudes
title_full A comparative analysis of the temperature behavior and multiple tropopause events derived from GPS, radiosonde and reanalysis datasets over Argentina, as an example of Southern mid latitudes
title_fullStr A comparative analysis of the temperature behavior and multiple tropopause events derived from GPS, radiosonde and reanalysis datasets over Argentina, as an example of Southern mid latitudes
title_full_unstemmed A comparative analysis of the temperature behavior and multiple tropopause events derived from GPS, radiosonde and reanalysis datasets over Argentina, as an example of Southern mid latitudes
title_sort comparative analysis of the temperature behavior and multiple tropopause events derived from gps, radiosonde and reanalysis datasets over argentina, as an example of southern mid latitudes
publisher Universidad Católica Argentina
publishDate 2019
url https://repositorio.uca.edu.ar/handle/123456789/5426
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