Técnicas Instrumentales Aplicadas a la Vigilancia Atmosférica

Tamaño: px

Comenzar la demostración a partir de la página:

Download "Técnicas Instrumentales Aplicadas a la Vigilancia Atmosférica"

Ramón Segura Valdéz
hace 8 años
Vistas:

1 Técnicas Instrumentales Aplicadas a la Vigilancia Atmosférica CURSO DE DOCTORADO Programa: Bienio FÍSICA INFORMÁTICA Sesión 4: El Programa NDACC Curso Doctorado

2 Técnicas Instrumentales aplicadas a la Vigilancia Atmosférica Profesores: Juan Carlos Guerra Emilio Cuevas Grupo de Física de la Atmósfera DEPARTAMENTO DE FÍSICA BÁSICA CURSO DE DOCTORADO Programa: Sesión 4: El Programa NDACC FÍSICA INFORMÁTICA (Network for the Detection the Atmospheric Composition Change)

FÍSICA BÁSICA CURSO DE DOCTORADO Programa: 04 013 Sesión 4: El Programa NDACC

3 La Network for the Detection of Stratospheric Change (NDSC) es un conjunto de estaciones de investigación de alta calidad para observar y entender la química y la física de la estratosfera NDACC: Network for the Detection the Atmospheric Composition Change Realizar observaciones que permitan detectar y entender posibles cambios físicos y químicos en la estratosfera. Proporcionar calibraciones independientes y absolutas a los sensores atmosféricos a bordo de satélites. Obtener datos que puedan ser utilizados para validar y mejorar modelos químicos y dinámicos en la estratosfera.

permitan detectar y entender posibles cambios físicos y químicos en la estratosfera.

7 Arctic NDSC station Ny-Ålesund Station Report 2005 Otto Schrems, Justus Notholt and Folkard Wittrock NDSC Steering Committee Meeting, Puerto de la Cruz; Tenerife, 8-11 November 2005

8 # files in database Instrument # file transfers # files 2004 Dt (online) Anon ftp Brewer Dobson FTIR Lidar Microwave Bksonde O3sonde Spectral UV UV Visible Total November Tenerife

959 1043 850 584 8467 25617 Bksonde 378 378 16 3 4211 9366 O3sonde 18785 22419 22964 34445 225921 574213 502 569 7 41 5213

9 Izaña

11 Instrumentación DOAS (UV-VIS) Desde 2001: OAI = Estación NDSC Gil et al., 2005 (INTA-INM)

12 Izaña (28ºN, 16ºW) Hoy 1993 EVA nm Scanning Spec. (NO2) 1999 RASAS Vis PDA (NO2, O3) 2001 ARTIST UV PDA (BrO, HCHO) Gil et al., 2005 (INTA-INM

13 Gil et al., 2005 (INTA-INM

14 Espectrógrafo del RASAS Temperatura en el espectrógrafo mantenida a 15º± 0.1 ºC para evitar desplazamientos del espectro La temperatura del laboratorio se mantiene a 18ºC todo el año Gil et al., 2005 (INTA-INM

15 ARTIST BrO RASAS NO2 O3 Gil et al., 2005 (INTA-INM

16 Espectrómetro EVA ARTIST-BrO Off-axis configuration Gil et al., 2005 (INTA-INM) Gil et al., 2005 (INTA-INM

17 Observatorio de Izaña (28ºN-16ºW) Intercomparación instrumentos de ozono Brewer: Daily mean UV-vis (am+pm)/2 (89º-91º) Mean = 0.69% Sd = 2.68%

18 NO2 column 15 molec/cm2) 6x10 5x10 NO2 vertical column (x10 4x EVA Scanning Rasas PDA x x x c :\ doc \ue\ quilt \pr_1\wp 3000_NO2_O3\ NO2_datas et_4 15 AM F at 90º = Izaña NDS C station (28ºN, 16ºW ) pm data am data

$3x10 15 2x10 15 1x10 1993 c :\ doc \ue\ quilt \pr_1\wp 3000_NO2_O3\ NO2_datas$

21 BrO DSCD sza 80º-90º 2.6x10 2 BrO DSCD (90º-80º) (molec/cm ) 2.4x10 2.2x10 2.0x10 1.8x10 1.6x10 1.4x10 am pm x x10 8.0x x x10 2.0x A S O N D J F M A M J J A S O N D <SCD>89.5º-90.5º - <SCD>79.5º-80.5º Solo casos con errores 3.5x10-4 J F M A M

22 Datos dsiponibles del Programa NDAAC de UV-Vis en Izaña: NO2: O3: BrO: ( gap en Ene-Jul 2003) (NO2 y O3 en tiempo real, BrO offline)

23 FTIR Izañ a Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft NDSC REPORT Reporting Period: February 1, 1999 to September 30, 2005 Site: Izaña Observatory, Tenerife Island, 28.3 N, 16.5 W, 2360 m a.s.l. Instrument: FTIR: Bruker IFS 120M until April 2005, 125 HR since Jan PI(s) - List affiliation(s) and address(es): Thomas Blumenstock, IMK-ASF, Forschungszentrum Karlsruhe, Karlsruhe, Germany, thomas.blumenstock@imk.fzk.de Co-I(s) - List affiliation(s) and address(es): Matthias Schneider, IMK-ASF, Forschungszentrum Karlsruhe, Karlsruhe, Germany, matthias.schneider@imk.fzk.de, Emilio Cuevas, Izaña Observatory, INM, St. Cruz de Tenerife, ecuevas@inm.es NDSC-related target parameters measured routinely: Zenith Column Amounts and some profile information of O3, H2O, N2O, CH4, CO, OCS, HF, HNO3, NO, NO2, ClONO2, HCl.

24 FTIR-Izaña

25 FTIR-Izaña Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Number of measurement days per year: Total (until Sept. 30, 2005) 620 Period(s) covered in data archiving at NDSC DHF: From the beginning on (February 1999) until December 2004 Species covered in data archiving at NDSC DHF: O3, H2O, N2O, CH4, CO, OCS, HF, HNO3, NO, NO2, ClONO2, HCl. Last archiving date: September 2005 Next anticipated archiving date: Summer 2006 Metadata file submitted (Yes/No): Yes

26 FTIR-Izaña Comp. of O3 columns with Brewer data M. Schneider et al.: Intercomparison of ozone profiles and total columns from ground-based FTIR measurements, ECC-sondes, and Brewer spectrometer at Izaña on Tenerife Island, JQSRT 91, , 2005.

27 FTIR-Izaña Comparison with sonde data M. Schneider et al., JQSRT 91, , 2005.

28 FTIR-Izaña Comparison with Brewer data FTIR O Sonde M. Schneider et al., JQSRT 91, , 2005.

29 FTIR-Izaña I. Kramer et al., EGU 2005 Comparison with MOPITT data

30 FTIR-Izaña N2O FTIR SLIMCAT KASIMA M. Schneider et al., ACP 5, , 2005

31 FTIR-Izaña Ozone FTIR SLIMCAT KASIMA and other species, M. Schneider et al., ACP 5, , 2005

32 FTIR-Izaña

33 FTIR-Izaña

34 FTIR-Izaña Izaña - Polarstern

35 Brewer RBCC-E

36 Brewer RBCC-E Regional Brewer Calibration Center for Europe (RBCC-E) RBCC-E at Izaña Observatory Double Brewer Triad B#157 Aug 1998 Ancillary information: B033 sea level Since izo since 1991 B#183 Dec 2003 Ozonesondes (1 week-1) Since November 1992 B#185 March 2005 Other techniques for O3 determination: UV-VIS FTIR Double Brewers MARK-III WRC-PFR Cimel-AERONET Dark-room for lamp calibrations Mobile lab for UV : IOS 1000W setup Spectral lamps set

37 Brewer RBCC-E 50 Brewer Spectrophotometers GAW GLOBAL COLUMN OZONE NETWORK

38 Brewer RBCC-E Sodankylä Total Column Ozone Intercomparison Campaign Measurements of total ozone at high latitudes, high ozone, low sun and low temperatures. 20 March to 14 April 2006 From the SAUNA web site : Why do total column ozone measurements from ground based and satellite instruments and their respective retrieval algorithms continue to differ at mid and high latitudes, and where large solar zenith angles and high total ozone amounts are typical?. o» What combination of instruments and algorithms should be used to measure total ozone at the 1% level under mid to high latitude, large solar zenith angle, high ozone conditions? o» How can the absolute accuracy of ground based and satellite measurements under these conditions be improved? o» What particular differences exist in the nature of measurements made by satellite and ground instruments over Sodankylä? o» What can explain the observed differences between the satellite DOAS and TOMS-type retrievals?

39 Brewer RBCC-E

40 Brewer RBCC-E Why take Brewer B185 as the reference in this experiment? The instrument is a true double monochromator, with proven small stray light (~<10-6) problems. Wavelengths chosen for the Brewer have been shown to have ozone absorption coefficients not dependent on the stratospheric temperatures. Automatic, heated.

Documentos relacionados

Caracterización de la contaminación con percepción remota

Caracterización de la contaminación con percepción remota de la Mora Centro de Ciencias de la Atmósfera Universidad Nacional Autónoma de México www.atmosfera.unam.mx/espectroscopia grutter@unam.mx Introducción