new ndacc station in sh hemisphere
DESCRIPTION
Río Gallegos Site , Argentina. Collaboration between CEILAP, LATMOS-IPSL and JICA. New NDACC station in SH hemisphere. Centro de Investigaciones en Láseres y Aplicaciones (LASER RESEARCH CENTER AND APPLICATIONS ) (CITEFA-CONICET) Buenos Aires - Argentina. Río Gallegos Site (CEILAP-RG). - PowerPoint PPT PresentationTRANSCRIPT
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Centro de Investigaciones en Láseres y Aplicaciones
(LASER RESEARCH CENTER AND APPLICATIONS ) (CITEFA-CONICET)
Buenos Aires - Argentina
Collaboration between CEILAP, LATMOS-IPSL and JICA
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Province of Santa Cruz, Argentine Patagonia.
Lat: 51º 36’ S, Lon: 69º 19’ W.
Military Air Force Base, Río Gallegos - Fuerza Aérea Argentina (FFAA)
Río Gallegos Site (CEILAP-RG)
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Little History of RG Site Events
2004Jun 2005Aug 2005-Dec 2006Sep 2007
DIAL Ozo
ne In
stru
men
t
Ready
to m
easu
re
Tran
spor
tatio
n
Of Ins
trum
ent
to
Rio G
alle
gos
Site
SOLA
R Cam
paig
nSt
art w
ith
UVO3P
atag
onia
Proj
ect
Dec 2008Ad
mission
of D
IAL
Ozone
Inst
. To
NDACC
Networ
k
Firs
t Ozo
ne S
onde
Campa
ign
in R
ío G
alle
gos
Mar 2010
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Argentina – Chile collaboration3 sondes launched in Río Gallegos site, collocated withDIAL during first week of March
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Time Evolution of Total Ozone in Río Gallegos (2009)
Study case 1(October 3 and 4)
Prolonged O3 Reduction Extreme Event (November 2009)
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Study Case 1 of Ozone Hole overpass in RG Site during 2009
OMI/AURA
Oct 22009
Oct 42009
Oct 62009
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New Capability of Temperature Lidar Profile in RG SiteComparison Lidar with HIRDLS/AURA-NASA
Mean ± 1σ dev HIRDLS
Error bars are plus and minus 1σ dev
ΔS < 500 Km
ΔT ± 12 Hs
N = 94 Measurements
Temperature Profiles Without Correction by Aerosols using Lidar Rayleigh
Temperature Profiles With Correction by Aerosols using Lidar Rayleigh
1 Km Resolution HIRDLS
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UVI & partial ozone loss column changes
Regions of potential UV enhancements linked to vortex occurrences in a cloudiness diminution
scenario
October (no cloud discrimination)Vortex
occurrencesTOC changes
Vortex occurrences
TOC changes
UVI changes
Regions R1 & R6, the most affected by vortex occurrences & polar ozone loss
Maximum UV increase are observed in region R1 due to low cloud clover conditions
If changes in cloud clover, R6 is the most sensitive region
►
►
►
October (quasi-clear sky)
[40°S-60°S] latitude band
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Polar region: Antarctica
Evolution of chemical ozone loss over Antarctica since 1980
Increased variability since 2000
2002 2004
1st major warming observed over Antarctica: split of the polar vortex and the ozone hole
spring 2002
2006
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Perspectives
Monitoring of atmospheric composition at Rio Gallegos (ozone, aerosol, UV, temperature) Very few measurement stations in the SH for long term
trend studies and cross-validation of satellite time series Network for the Detection of Atmospheric Composition
Changes (NDACC) southern mid-latitudes stations: Lauder (NZ) and Rio Gallegos (Argentina)
More instruments are being implemented (microwave radiometer, U. Nagoya)
Study of the recovery of the Antarctic ozone hole in relation with climate change