1. Overview of GNSS & GNSS-Met situation in France
COST Action ES GNSS4SWEC Advanced GNSS Tropospheric Products for monitoring Severe Weather Events and Climate
Reykjavik, 10 March 2016
Overview of GNSS & GNSS-Met situation in France
O. Bock (IGN)
Outline
Operational Services
GNSS networks & data analysis centers
Research projects
HYMEX, REMEMBER, VEGA, AMMA…
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2. Operational processing of GNSS (tropo) data
IGN/SGN operational activities
RGP (permanent GNSS network – France; 440 stations)
National data center => rinex files (1h/1s, 24h/30s)
NRT + daily rapid (D+1) products (BERN5.2, GPS only, recent tests with GLONASS)
=> E-GVAP AC (sgn_, sgn1, sgnc) = 6 proc.
EPN & IGS
IGS data center (igs.ign.fr) => rinex files & IGS products
Post-processing using final IGS products => EUREF AC = 3 proc.
IDS (Int. DORIS Service)
DORIS data and products center => IDS AC (ign)
IGN/LAREG operational activities
Routine post-processing (GIPSY) of GNSS data for:
ROSEA (network of observatories for Atmospheric Water Monitoring)
Long term research observing programmes (AMMA, HYMEX)
AERIS: NEW national data center for the atmosphere and climate research
CNRS operational activities
RENAG (national research GNSS network; subset of RGP stations)
National data center and post-processing products (GAMIT)
SGNC: new process over Carribean region
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3. RGP (Reseau GNSS Permanent) RENAG (REseau NAtional GPS)
EUREF - sgn
E-GVAP - sgn
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4. Saint Pierre et Miquelon Martinique
March 2016 : 440 stations
Guadeloupe
La Réunion
Saint Pierre et Miquelon
Martinique
Mayotte
French Guiana
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5. GNSS in research projects
COST GNSS4SWEC
WG1 & WG3 (studies on GNSS processing, assessment of long ZTD/IWV time series, climate model validation) => IGN & ENSTA
WG1 BENCH & tomo (U. Le Mans)
HyMeX (Hydrological cycle in the Mediterranean Experiment, INSU-CNRS, PIs: V. Ducrocq, Meteo-France, and Ph. Drobinksi, CNRS)
Assimilate repro GPS ZTD in AROME model (HyMeX reanalysis 2)
Study Heavy Precip Events during SOP1 (fall 2012)
REMEMBER & Med-CORDEX (REgional climate system ModEls in the Mediterranean, ANR, PIs: Ph. Drobinski and S. Bastin, CNRS)
Evaluate regional (Mediterranean) climate models simulations
VEGA (Water vapour, GNSS & climate, INSU-CNRS, PI: O. Bock)
Produce & validate long time series of GNSS & DORIS IWV data
Evaluate satellite and radiosonde IWV data
Study water cycle & moist processes globally and in polar regions
AMMA & Humidity-Sahara (West African Monsoon and Sahara)
Study water cycle & moist processes (Saharan Heat-Low dynamics)
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6. reprocessed E-GVAP 182 sta RENAG + 8 sta HYMEX_FR + 5 sta HYMEX_DE SGN
IGE
ASI
182 sta RENAG + 8 sta HYMEX_FR + 5 sta HYMEX_DE
773 stations
(3 Analysis Centres)
1046 stations (25 networks) reprocessed by
LAREG & e-Geos with GIPSY s/w
Period 1 Sep 2012 – 31 Mar 2013
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