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
Centro de Investigaciones en Láseres y Aplicaciones
(LASER RESEARCH CENTER AND APPLICATIONS ) (CITEFA-CONICET)
Buenos Aires - Argentina
Collaboration between CEILAP, LATMOS-IPSL and JICA
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)
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
Argentina – Chile collaboration3 sondes launched in Río Gallegos site, collocated withDIAL during first week of March
Time Evolution of Total Ozone in Río Gallegos (2009)
Study case 1(October 3 and 4)
Prolonged O3 Reduction Extreme Event (November 2009)
Study Case 1 of Ozone Hole overpass in RG Site during 2009
OMI/AURA
Oct 22009
Oct 42009
Oct 62009
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
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
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October (quasi-clear sky)
[40°S-60°S] latitude band
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
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