Wp4 african emissions
Download
1 / 17

WP4: African Emissions - PowerPoint PPT Presentation


  • 105 Views
  • Uploaded on

WP4: African Emissions. M. Van Roozendael , C. Fayt , C. Hermans , G . Pinardi , C. Gielen , F. Hendrick , I . De Smedt BIRA-IASB Prof. Pierre Nzohabonayo , Rachel Akimana , Eugène Nzendako Université du Burundi.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' WP4: African Emissions' - xue


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Wp4 african emissions

WP4: African Emissions

M. Van Roozendael, C. Fayt, C. Hermans,

G. Pinardi, C. Gielen, F. Hendrick, I. De Smedt

BIRA-IASB

Prof. Pierre Nzohabonayo, Rachel Akimana,

EugèneNzendako

Université du Burundi

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


AGACC-II Tasks in WP 4

  • WP4:African emissions

    • 4.1. Install MAXDOAS instrument in Burundi (Bujumbura)

    • 4.2.Analyse the data for trace gases (NO2, O3, HCHO, glyoxal, SO2, BrO, H2O) and aerosols

    • 4.3. Study transport of biomass burning plumes, and link with measurements at Reunion Island

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


OMI/AURA HCHO, 2007-2009, 01:30 pm

DJF

MAM

SON

JJA


Activities in 2013

Bujumbura

(3°S, 30°E)

  • Training of EugèneNzendako (until Feb. 2013)

  • Finalisation and initial calibration of MAXDOAS instrument (until late April 2013)

  • Participation to MADCAT international campaign in Mainz (Germany) for testing and validation of MAXDOAS system (June 2013)

  • Fixing of instrumental problem (Jul-Sep 2013)

  • Final calibration, organisation of transfer to Bujumbura (Oct 2013)

  • Installation: Nov 2013

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Project status 1 year ago (AGACC-II PM2)

MAXDOAS

  • Visit of M. Van Roozendael and C. Hermans in May 2012  identification of suitable location for installation and discussion of critical issues regarding operation and maintenance of instrument

  • Supporting infrastructure in preparation (security, power, internet connection, etc). A dedicated room is being build to host the instrument.

    • Training of local people  ongoing at BIRA (Eugène)

AGACC II Kick-off Meeting, BIRA-IASB, 29 Sep. 2011


Installation of MAXDOAS and CIMEL systems

CIMEL

  • MAXDOAS and CIMEL sunphotometer installed at University of Bujumbura in November 2013

  • Bothsystemsoperationalsince 25 Nov 2013

  • Daily data transferusingdedicated internet line (but still part of University network)

MAXDOAS

room

BIRA

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Functionaldrawing of the Bujumbura installation

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013

C. Fayt, 2013


Data acquisition, transfer and processing

  • Sequences of measurements fully automated

    • Control of the different devices (sun tracker, filter wheel, CCD)

    • Sequence of measurements (different elevation angles, dark currents)

    • Automatic adjustment of the integration time

    • Remote control possible in case a problem is detected (VNC)

  • Data are downloaded daily by ftp and raw data are stored at BIRA for further processing

  • Automated processing chain operational

  • Rapid control of the quality of the results through a local web page

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


First results – spectral fits

 The instrument performs nominally. NO2, HCHO, O3, H2O, O4 … spectral signatures are detected with high S/N ratio according to specifications.

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


First results – slantcolumns

Thick clouds

& rain

HCHO

NO2

O4

 The instrument performs nominally. NO2, HCHO, O3, H2O, O4 … spectral signatures are detected with high S/N ratio according to specifications.

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


First inversions for NO2, HCHO and aerosols

Preliminary – no cloud filtering applied yet

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Comparisonwith satellite data (HCHO)

OMI HCHO VCD

  • HCHO columns roughly consistent for GOME-2 (09:30 am) and OMI (01:30)  no diurnal variation?

  • Inter-sensor consistency seems to degrade with time?

  • Small but significant seasonal variation

  • What can we learn from MAXDOAS?

DJF

2007-2009

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Comparisonwith satellite data (HCHO)

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Comparisonwith satellite data (HCHO)

MAXDOAS profiles

Model profiles used in satellite retrievals

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Comparisonwith satellite data (HCHO)

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Comparisonwith satellite data (HCHO)

AGACC-II Third Progress Meeting, BIRA-IASB, 18 Dec. 2013


Outlook

  • Continued data acquisition and processing of MAXDOAS and CIMEL sunphotometer data throughout 2014 (and later)

  • Continued data exploitation for NO2, HCHO, glyoxal, O3, BrO, aerosols

  • Satellite validation

  • Dispersion modelling

  • Look for PhD support for a scientist in Bujumbura

Thank you to all our colleagues from

the University

of Burundi !

AGACC II Kick-off Meeting, BIRA-IASB, 29 Sep. 2011


ad