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====== SECOND_INTERCOMPARISON_CAMPAIGN_OF_THE_REGIONAL_BREWER_CALIBRATION_CENTER-EUROPE ======

[[Category:Campaigns]]
=====Invitation=====
Dear European Brewer spectrophotometer user community:
	
This is an invitation to European Brewer operators to participate in the second Regional Brewer Calibration Center for Europe (RBCC-E) intercomparison that will be held at El Arenosillo Atmospheric Sounding Station of the “Instituto Nacional de Técnica Aeroespacial” (INTA) during the period September 1-15, 2007. This second campaign will be a joint exercise of the Regional Dobson Calibration Canter for Europe (RDCC-E) and the Brewer spectrophotometers organized by the RBCC-E in collaboration with the “Area of Instrumentation and Atmospheric Research” of “INTA, and under the Global Atmospheric Watch (GAW) program of the World Meteorological Organization (WMO) support. 

=====RBCC-E=====
In November 2003, and within the GAW/WMO program, the Regional Brewer Calibration Centre for RA-VI Region (Europe) (RBCC-E) was established at the Izaña Atmospheric Observatory (IZO, Canary Islands), managed by the “Instituto Nacional de Meteorología” (INM, Spain). Technical and organization information of the RBCC-E can be obtained at www.rbcc-e.org. The RBCC-E is advised by experts of the Ad-Hoc Regional Brewer Scientific Group (RBSG-E), see the list in Annex 1, with particular working tasks (see Annex 2).

At present, the RBCC-E maintains a triad of reference instruments. The Regional Primary Reference Spectrophotometer (B157) and the Regional Travelling Reference Spectrophotometer (B185) which can be transported to field calibration missions are part of the triad. All the spectrophotometers are absolutely calibrated at IZO and regularly compared against the World Brewer Reference Triad (BRT) maintained by the Meteorological Service of Canada (MSC, Toronto) by calibrations provided by the International Ozone Services (IOS).

In order to maintain the continuity of the calibration scale of the BRT with the current transfer, the travelling reference B017 operated by experts of IOS will participate in this intercomparison. That will allow participants to order IOS for technical servicing on their instruments during the campaign. As the action is focused mainly on re-calibration of Brewer spectrophotometers from the Iberonesia network (http://www.iberonesia.com/brewer/), only up to seven external Brewer instruments can be hosted.

The Dobson campaign is organized by Regional Dobson Calibration Centre-Europe (WMO-RDCC-RA-VI) Meteorological Observatory Hohenpeissenberg (Germany).  During the first days both calibration campaigns will perform in parallel, while the last days are reserved for the Dobson and Brewer comparison. During the comparison exercise ozone-sondes will be launched for Umkehr measurement validation and to assert the assumptions used in Brewer and Dobson retrieval algorithms of the ozone height and temperature.

The QASUME unit of the Physikalisch-Meteorologisches Observatorium Davos / World Radiation Center (PMOD /WRC) will participate providing the spectral global UV reference for the ultraviolet measurements. At the same time, a national calibration campaign of broadband instruments measuring erythermal irradiance will be held.

=====Schedule of the Intercomparison=====
The 2nd RBCC-E Calibration Campaign, El Arenosillo, Huelva (Spain) during 1st - 15th September 2007:
 **Note:** Click on //Agenda// tab below to see a detailed events list.
{{BoxGray|style="left:0"|title=Events|content=
<googlecalendar>64j4ahs8f6osgucpi9dlk52u40%40group.calendar.google.com&title=Iberonesia%20Events&dates=20070901%2F20071001&epr=3</googlecalendar>
}}
The following operations are offered by the RBCC-E during the intercomparison: 

  * Ozone calibration against the RBCC-E travelling reference (B185) and the World travelling reference (B017) managed by IOS (International Ozone Services).
  * Compilation of the calibration histories of the instruments
  * UV calibration performed by the QASUME (Quality Assurance of Spectral Ultraviolet Measurements in Europe) unit from the PMOD-WRC.
  * Umkehr validation against ozone-sondes.

=====Location of the Intercomparison=====
The [[http://www.inta.es/grandesInstalaciones/centroDeExperimentacionArenosillo.asp|El Arenosillo Atmospheric Sounding Station]] (INTA). Accommodation details are given in [[#Annex-3: Accommodation information|Annex 3]]

Click [[http://maps.google.com/maps?hl=es&q=El%20Arenosillo,%20Huelva,%20Spain|Here]] for a Google Map location.
=====Participants=====
====Intructions to the participants====
[[Instructions to the Participants]] are already available. Please check them to see if you are ready!
==== Updated Participant list ====
21/07/2007 [[Participants List]]

=====Technical Requirements=====
The instruments should be operative, equipped with tripods and run by their usual operator.
History of the instrument (AVG Files), last calibration and recent observations (B files) must be available at the intercomparison. Updated technical aspects can be checked through [[http://www.rbcc-e.org|www.rbcc-e.org]].

=====Funding for instruments maintenance=====
Travelling, instrument transportation and accommodation costs should be covered by the participants. 
Extra financial support for developing countries or countries with economies in transition may be available from WMO-GAW. In case of major repairs, the guests can directly order the service with the IOS Company.

=====Contact addresses=====
====Brewer Campaign coordinator====
 Alberto Redondas
 Instituto Nacional de Meteorología-INM
 Ozone and UV Izaña Atmospheric Observatory Group
 RBCC-E site manager. 
 
 Izaña Atmospheric Observatory (INM-Tenerife)
 C/ La Marina, 20, 38071 Santa Cruz de Tenerife
 Spain
 
 Tel: +34-922-574487
 Fax: +34-922-574475
 Email: <mail pre=" ">aredondas@inm.es</mail>

====Local organizer====
 José Manuel Vilaplana 
 Instituto Nacional de Técnica Aeroespacial 
 Atmospheric Research and Instrumentation Branch 
 Atmospheric Sounding Station "El Arenosillo"
 
 Ctra. San Juan del Puerto - Matalascañas  Km.33
 21130 Mazagon, Huelva
 Spain
 
 Tel: +34-959.20.88.58
 Fax: +34-959.20.88.57
 Email: <mail>vilaplanagjm@inta.es</mail>

====Members of the Organizing Committee====
  * Emilio Cuevas (<mail>ecuevas@inm.es</mail>); Izaña Atmospheric Observatory, Director (INM)
  * Manuel Gil (<mail>gilm@inta.es</mail>); Atmospheric Research and Instrumentation, Head (INTA)
  * Benito de la Morena (<mail>morenacb@inta.es</mail>); //El Arenosillo// Atmospheric Sounding Station, Head (INTA)
  * María López (<mail>mlopez@inm.es</mail>); Special Networks Unit, Head  (INM)

=====Deadline=====
Please confirm your participation before June 30, 2007

=====Annex 1: The Regional Brewer Scientific Group – Europe=====
List of Regional Brewer Scientific Group members along with their mail addresses.

 **Note:** Email address links are Spam-protected on this site.

You will need a javascript-enabled browser to see email addresses correctly.

{| border="1" cellspacing="0" cellpadding="5"
|-
|<mail name="A. Bais">abais@auth.gr</mail>
|GRE
|Aristotle University of Thessaloniki
|-
|<mail name="E. Cuevas">ecuevas@inm.es</mail>
|SPA
|Inst. Nacional de Met. (INM), Izaña Atmospheric Observatory 
|-
|<mail name="A. Labajo">alabajo@inm.es</mail>
|SPA
|Instituto Nacional de Meteorología 
|-
|<mail name="H. DeBacker">debacker@kmi-irm.be</mail>
|BEL
|Royal Met. Institute of Belgium, Uccle
|-
|<mail name="T. Grajnar">tom.grajnar@ec.gc.ca</mail>
|CAN 
|Meteorological Service of Canada 
|-
|<mail name="J. Gröbner">julian.groebner@jrc.it</mail> 
|SWI
|World Radiation Center (WRC/PMOD) 
|-
|<mail name="J. Jaroslawski">januszj@igf.edu.pl</mail>
|POL 
|Inst. Geoph. Polish Academie of Science 
|-
|<mail name="U. Köhler">ulf.koehler@dwd.de</mail>
|GER
|Met. Obs. Hehnpeissenberg 
|-
|<mail name="T. Koskela">koskela@fmi.fi</mail> 
|FIN 
|Finish Meteorological Institute
|-
|<mail name="J. Krzyscin">jkrzys@igf.edu.pl</mail> 
|POL 
|Inst. Geoph. Polish Academy of Science 
|-
|<mail name="A. Redondas">aredondas@inm.es</mail> 
|SPA 
|Inst. Nacional  Met. (INM)., Izaña Atmospheric Observatory 
|-
|<mail name="J. Staehelin">staehelin@iac.umnw.ethz.ch</mail> 
|SWI 
|Federal Institute of Technology, Zurich 
|-
|<mail name="M. Stanek">stanek@chmi.cz</mail>
|CHE 
|Czech Hydromet. Institute, SOO-HK 
|-
|<mail name="R. Stubi">rene.stubi@meteoswiss.ch</mail>
|SWI 
|MeteoSuisse, Observatory Payerne
|-
|<mail name="K. Vanicek">vanicek@chmi.cz</mail> 
|CHE 
|Czech Hydromet. Institute, SOO-HK 
|-
|<mail name="J. Vilaplana">vilaplanagjm@inta.es</mail>
|SPA
|Inst. Nac. de Téc. Aeroesp, El Arenosillo
|}

=====Annex 2: RBSG-E Working Task=====
With reference to responses submitted after the RBSG-E meeting held at El Arenosillo/Mazagon, September 2003 the following specialists from Europe and MSC have been affiliated with particular working tasks defined at the meeting. Underlined are the experts which have expressed their preliminary interest to lead/coordinate groups on the working tasks.

*WT1: Establishment and maintenance of Regional Brewer Reference Spectrophotometers: E. Cuevas, A. Redondas, M. Stanek, T. Grajnar 

*WT2: Instruments. Calibration histories: K. Vanicek

*WT3: Relation between the Dobson and Brewer calibration scales: J. Staehelin, H. DeBacker, U. Köhler, J. Krzyscin, K. Vanicek 

*WT4: UV calibration of Brewer spectrophotometers: J. Gröbner, A. Bais, T. Koskela

*WT5: Measurements of UV Aerosol Optical Depth with Brewer spectrophotometers: A. Bais, H. DeBacker, J. Gröbner, J. Jaroslawski

=====Annex-3: Accommodation information=====
The following hotels are in Mazagón (the nearest village to the “El Arenosillo” Atmospheric Sounding Station). Due to the limited number of rooms in these small hotels in a resort area, we suggest to book your accommodation in advance. 

Our first recommendation is Hotel Albaida:

  * [[http://www.hotelalbaida.com/|Hotel Albaida]] (***) 
:Telephone: +34.959376029/FAX: +34.959376108
:E-mail: <mail>informacion@hotelalbaida.com</mail>
:Double room for individual use 68 €, breakfast + 1 meal included.

Other available accommodations:

  * [[http://www.parador.es/english/paradores/ficha.jsp?seccion=18&selNombreParador=Mazag%F3n&subSeccion=1&idiomaCabecera=ing|Parador de Mazagón]] (****)
:Telephone: +34.959536300/FAX: +34.959536228
:E-mail: <mail>mazagon@parador.es</mail>
:Double room for individual use 124 €, double use 155 €

*Carabela Santa María (***)
:Telephone: +34.959536018/FAX: +34.959377258
:Double room for individual use: from 1st to 7th Sep. 76.23 € and from 8th 55.35 €, includes breakfast + one meal.

*Hostal Hilaria 
:Telephone: +34.959.37.62.06)
:Double: 55€, Individual: 36€.

*Hostal Acuario
:Telephone: +34.959.377.286, Fax: +34.959377258 
:E-mail: <mail>hostalacuario@turinet.net</mail>
:Studio apartments with kitchen: 2 people 55 €, 3 people 65 € and 4 people 75 €
:Rooms with bathroom: single 35 €, 2 people 45 € and 3 people 55 €

*[[http://www.campingdonana.com|Camping Doñana]]
:Telephone: +34.959.53.62.81, Fax: +34 959 536313
:Brand new comfortable wooden cabins with different housing capacity, with or without kitchen, prices from 64,75 €.

Please, contact Ms Pilar Sanz (<mail>sanzcp@inta.es</mail>) for more accurate hotel information
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