Site Instrumental de Recherche par Télédétection Atmosphérique

Martial Haeffelin

SIRTA InstrumentationSIRTA InstrumentationSIRTA InstrumentationSIRTA InstrumentationLIDAR B-scat Lidar (532, 1064)B-scat Lidar (532, 1064) Clouds, aerosols propertiesClouds, aerosols properties 19991999

Ceilometer (KNMI)Ceilometer (KNMI) Cloud, BL HeightCloud, BL Height 20022002

IR Doppler Lidar (10.6 m) 3D Wind 1999

Ozone Lidar (316 nm) Ozone, aerosols 2003

Raman Lidar (355 nm) Water vapor, Profile 2003

RADAR Doppler Radar 95 GHzDoppler Radar 95 GHz Cloud propertiesCloud properties 20022002

Doppler Radar 5 GHz Precipitation, 3D Wind 1999

RADIO-METER

BB RadiometersBB Radiometers Radiative Fluxes (2003 BSRN)Radiative Fluxes (2003 BSRN) 19991999

Sun-PhotometerSun-Photometer Aerosols, water vaporAerosols, water vapor 20022002

IR RadiometerIR Radiometer Brightness temperatureBrightness temperature 20022002

MW RadiometerMW Radiometer Water vapor + liquidWater vapor + liquid 19991999

IN-SITU WeatherWeather Pres., temp., humidity, windPres., temp., humidity, wind 19991999

Spectro-pluviometerSpectro-pluviometer Diameter + drop velocityDiameter + drop velocity 19991999

RadiosondeRadiosonde Vertical Profiles (00, 12 UT) Vertical Profiles (00, 12 UT) 19991999

Sonic Anemometer Turbulent Fluxes 2003

LD-40 CEILOMETER (KNMI)LD-40 CEILOMETER (KNMI)

PR2

LD-40 CEILOMETERLD-40 CEILOMETER

BSRN RADIOMETRIC STATIONBSRN RADIOMETRIC STATION

• Direct solar irradiance (SWdir)

• Diffuse solar irradiance (SWdif)

• Total SWtot = SWdir. + SWdif

BSRN RADIOMETRIC STATIONBSRN RADIOMETRIC STATION

CLOUDY

CLEAR CLEAR

Downwelling IR irradiance (LW)

LWdown = LWnet + T4

BSRN RADIOMETRIC STATIONBSRN RADIOMETRIC STATIONCLOUDY

CLEARCLEAR

Date RASTA LNA LD40 RAD FLUX MWR123456789

10111213141516171819202122232425262728293031

Date RASTA LNA LD40 RAD FLUX MWR123456789

10111213141516171819202122232425262728

Date RASTA LNA LD40 RAD FLUX MWR123456789

10111213141516171819202122232425262728293031

Date RASTA LNA LD40 RAD FLUX MWR BSRN123456789

101112131415161718192021222324252627282930

JAN

APR

MAR

FEB

SIRTA INSTRUMENT PERFORMANCESIRTA INSTRUMENT PERFORMANCE

2003

• Web access:•http://sirta.lmd.polytechnique.fr/Donnees_english.php

• ftp access:•ftp://cloudnet@perceval.lmd.polytechnique.fr (6Rus_Lid)

SIRTA DATA PROCESSING, ARCHIVAL, DISSEMINATION

QL Level-1 Level-2 Files

RASTAWeb - NRTftp

Netcdf - Hourly

LNAWeb - NRTftp

BinaryNetcdf (04/03)

-1/2-

hourly

LD40 -ASCIINetcdf (05/03)

Cld baseBL height

Daily

Daily LNA30s and RASTA10s files: additional 50 Go/yr