1. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE Air Quality Information Exchange experiences, problems, suggestions (EoI, ozone data exchange procedures) Libor Cernikovsky 8 th EIONET Workshop Oslo, 6.-7.11.2003 experiences, problems, suggestions (EoI, ozone data exchange procedures) Libor Cernikovsky 8 th EIONET Workshop Oslo, 6.-7.11.2003

2. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE Ozone – general information wAnnual data deadline: 30 th June 2003 wSummer exceedances deadline:  end of each month  15 th September 2003 ...published on ETC/ACC web site ...Summer report (summary is available on the web already)

3. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE Ozone – remarks wlong-time routine procedure without serious problems wfew questions from countries only wmain problem every summer: lack of clarity and/or missing data in the meta-information of stations

4. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE Ozone – news wDirective 2002/3/EC relating to ozone in ambient air came in force wMS shall provide the Commission: –Monthly data: before the end of the following month information on the exceedance of information and alert thresholds –Summer data not later than 31 st October, additional (provisional) data for the current summer period (from April to September)

5. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE Ozone – news –Annual data not later than 30 th September of the following year, validated information for ozone and precursors wDocument „Information and data exchange Procedures and Formats“ in preparation (modification up to now used formats)

6. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE Ozone – news All values are to be expressed in µg/m³. The volume must be standardised at the following conditions of temperature and pressure: 293 K and 101,3 kPa The time is to be specified in Central European Time.

7. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE EoI - general information wEoI deadline: 30 th September wDEM v6 release: 31 st July 2003 w1 st question/bug reported: 13 th August wDEM v6.1 release: 11 th September whuge portion of e-mails on reported bugs wnumber of questions increased during days close to the deadline

8. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE EoI – important questions Definition of time in the DEM format the DEM expect a startdate/time of the measurement Example: COMPONENT Ozone, hour STATION 404- Const.Rebecqueplein 20000101 00:00, 10.5, 1... reports that the hourly average of ozone measured between 01/01/2000 00:00 and 01/01/2000 01:00 is 10.5

9. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE EoI – important questions Quality flags in the DEM format The concentration without flag DEM understands as validated. DEM allows the following quality flags: FlagDefined as 1Validated 0Missing Value -1Not Validated -2Erroneous

10. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE EoI – important questions Pollutant‘s units in DEM Due to the fact that the DEM only supports a standard DEM unit, the users are notified before they start a Raw Data import, so they can check whether their data corresponds to this unit.

11. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE EoI – important questions Data submission Sending either by posting a CD-ROM or by transfer via FTP-service. EU MS need to notify the Commission, non EU MS the ETC/ACC, by e-mail that data has been processed by postal service or by ftp. All EEA Member Countries are required to upload the data also to the agreed data repositories reserved for their country.

12. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE EoI – important notes wdo not use old versions of DEM ! wdo not use DEM database twice ! wdo not modify DEM database in MS Access ! wnew quality control routine implemented in DEM...

13. EUROPEAN TOPIC CENTRE ON AIR AND CLIMATE CHANGE H Helpdesk contact person of the ETC/ACC Libor Cernikovsky e-mail: cernikov@chmi.cz etc-acc @chmi.cz tel: +420 – 596 900 218 fax: +420 - 596 910 289 Libor Cernikovsky e-mail: cernikov@chmi.cz etc-acc @chmi.cz tel: +420 – 596 900 218 fax: +420 - 596 910 289