Air Pollution - Trace Radical Absorption through Cavity-Enhanced Spectroscopy (TRACES)
This page displays all of the metadata information which describes this resource. This metadata information provides details of: the owners and creators of this resource; download links to any files which are available for downloading; geographical and temporal information about the datasets or project in general; other information such as a description of the project, experimental techniques used, data download restrictions, etc.
View other resources on SAFER owned/managed by the owner of this resource.
Files attached to this resource have been downloaded 49 times.
View Download Timeline Graphic
Resource or Project Abstract
This project has developed an incoherent broadband
cavity-enhanced absorption spectroscopy (IBBCEAS)
system for the detection of the important nocturnal oxidant NO3. The IBBCEAS system has been deployed and demonstrated in both atmosphere simulation chambers and in the field. An extensive suite of spectral analysis software was developed and tested on the system. It has
been shown that very long optical cavities are feasible and robust: the 20 m cavity demonstrated at the SAPHIR (simulation of atmospheric photochemistry in a large reaction) simulation chamber is longer than typical cavity ring-down and cavity-enhanced absorption systems by over an order of magnitude. Such long cavities are particularly suited to broadband measurements and the detection of multiple atmospheric trace gases because they allow lower reflectivity mirrors to be used while retaining high absorption ensitivity. Lower reflectivity mirrors are suited to broadband measurements because broadband light sources have much lower spectral power densities than lasers; in addition, the high reflectivity
region is broader for lower reflectivity mirrors, allowing several species to be detected simultaneously.
Go back to top of page
Top 
Contact Information for This Resource
| Dr. Uwe Heitmann |
| ISAS - Institute for Analytical Sciences |
| Dr. Ravi Varma |
| University College Cork Ireland |
| Dr. Andy Ruth |
| University College Cork Ireland |
| Dr. Dean Venables |
| University College Cork Ireland |
Go back to top of page
Top
Data, Files, Information Objects Related To This Project Resource
Please Read Carefully Before Downloading
It is important for the EPA and the Environmental Research Community to know that the data and information products we distribute are useful to the user community we support. One way of doing this is by tracking the use of data and information in publications. Parts of or all of the datasets, data, or digital information products available here can be freely downloaded for further use in scientific applications under the condition that the source will be properly quoted in published papers, journals, websites, presentations, books, etc. Whenever possible the EPA strongly urge you to cite the use of these data, information, and web resources in the reference section of your publications. For convenience an automatically generated citation is available below which can be used immediately for citation purposes.
EPA SAFER Data Download Disclaimer: Before downloading any of the data or information objects below you are kindly asked to read the data download disclaimer Read Disclaimer (Opens in New Window). Downloading data or information objects from SAFER-Data indicates an acceptance of the data download disclaimer and the conditions outlined within it.
| Attachment Name and Download Link |
|---|
| Offline Print Quality Version STRIVE_15_Heitman_TRACES_prn.pdf (9.27 Mb) |
| Project Report Optimised For Online Viewing STRIVE_15_Heitman_TRACES_web.pdf (2.73 Mb) |
Suggested Citation Information
The information supplied in the table below should be provided with all citations to this electronic resource. You are requested to format each of the fields below as required by the specific bibliographical style you are using.
| Author(s) | Heitmann, U. Varma, R. Ruth, A. Venables, D. |
| Title Of Website | Secure Archive For Environmental Research Data |
| Publication Information | Air Pollution - Trace Radical Absorption through Cavity-Enhanced Spectroscopy (TRACES) |
| Name of Organisation | Environmental Protection Agency Ireland |
| Electronic Address or URL | https://eparesearch.epa.ie/safer/resource?id=a4529598-20ea-102c-b381-901ddd016b14 |
| Unique Identifier | a4529598-20ea-102c-b381-901ddd016b14 |
| Date of Access | Last Updated on SAFER: 2025-01-20 |
An example of this citation in proper usage:
Heitmann, U. Varma, R. Ruth, A. Venables, D. "Air Pollution - Trace Radical Absorption through Cavity-Enhanced Spectroscopy (TRACES)". Associated datasets and digitial information objects connected to this resource are available at: Secure Archive For Environmental Research Data (SAFER) managed by Environmental Protection Agency Ireland https://eparesearch.epa.ie/safer/resource?id=a4529598-20ea-102c-b381-901ddd016b14 (Last Accessed: 2025-01-20)
Go back to top of page Top
Access Information For This Resource
| SAFER-Data Display URL | https://eparesearch.epa.ie/safer/iso19115/display?isoID=96 |
| Resource Keywords | Spectroscopy Jülich intercomparison NO3/N2O5 incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) |
| EPA/ERTDI/STRIVE Project Code | 2005-ET-MS-28-M3 |
| EPA/ERTDI/STRIVE Project Theme | Air Quality |
| Resource Availability: |
 Public-Open |
| Limitations on the use of this Resource | While no data is attached to this resource third party users are encouraged to properly cite any references to the attached report in any derived work. Please see the automatically generated citation below for a guide. |
| Number of Attached Files (Publicly and Openly Available for Download): | 2 |
| Project Start Date | Sunday 1st January 2006 (01-01-2006) |
| Earliest Recorded Date within any attached datasets or digital objects | Monday 1st January 2007 (01-01-2007) |
| Most Recent Recorded Date within any attached datasets or digital objects | Thursday 31st May 2007 (31-05-2007) |
| Published on SAFER | Sunday 21st December 2008 (21-12-2008) |
| Date of Last Edit | Sunday 21st December 2008 at 20:28:38 (21-12-2008) |
| Datasets or Files Updated On | Sunday 21st December 2008 at 20:28:38 (21-12-2008) |
Go back to top of page
Top
Geographical and Spatial Information Related To This Resource
Description of Geographical Characteristics of This Project or Dataset
The aim of this project was the development of an incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) system for the detection of the important noctural oxidant NO3. It has been deployed and demonstrated in both atmospher simulation chambers and out in the field. The test locations for the field tests were Roches Point in Ireland for NO3 Measurements and at Kuujjuarapik at Hudson Bay Canada for Bro Measurements. Due to external problems (weather and mechanical) neither deployment of the instrumentation yielded any results. The locations of the two test areas are shown in the geographical coverage below.
Go back to top of page
Top
Supplementary Information About This Resource
In this section some supplementary information about this resource is outlined. Lineage information helps us to understand why this project was carried out, what policy or research requirements did it fulfil, etc. Lineage is important in understanding the rationale behind the carrying out of a project or the collection of a specific dataset etc. Links to web sites, applications, papers, etc are outlined to provide you with additional information or supplementary reading about the project or dataset
| Lineage information about this project or dataset |
| Free Radicals are the driving force behind the chemistry of the natural and polluted environment. The systems in this project have used an open-pathconfiguration which has particular advantages for highly reactive species such as radicals, since there are no surfaces in the system on which the gases can react and bias the measurements. The long cavities allow the atmosphere to be probed with a much higher spatial resolution than other broadband systems, most notably long-path differential optical absorption spectroscopy (DOAS), an established field technique. The core objective for this project was the development of a highly sensitive spectroscopic instrument for the detection of the NO3 radical |
| Supplementary Information |
| From June 9 to June 21 2007, the newly built instrument participated in an NO3/N2O5 intercomparison in the SAPHIR (simulation of atmospheric photochemistry in a large reaction) chamber at the Forschungszentrum
Jülich in Germany. |
| Links To Other Related Resources |
| http://www.physics.ucc.ie/research.html (Opens in a new window) |
Any links supplied by the resource owner are stored such that they will open in a new window. Following such a link may lead to a 3rd party website over which EPA has no control in regards to contents or suitability.
Go back to top of page
Top
The following is a list of projects, datasets, and resources on SAFER-Data from which users downloaded attachments from soon after downloading attachments from this resource Air Pollution - Trace Radical Absorption through Cavity-Enhanced Spectroscopy (TRACES). You can view the full description for projects, datasets, and resources by using the links supplied.
- A Framework for the Assessment of Groundwater - Dependent Terrestrial Ecosystems under the Water Framework Directive View Full Metadata Description
- AQUIRE: Air Quality Forecast and Statistics over Ireland View Full Metadata Description
- PM10 chemistry data starting 2005 for Carnsore Point, Oak Park, Malin Head View Full Metadata Description
- New Transboundary Air Pollution Monitoring Capacity for Ireland View Full Metadata Description
- Monitoring of gas emissions at landfill sites using autonomous gas sensors View Full Metadata Description
Go back to top of page
Top