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NARSTO EPA_SS_HOUSTON Rapid Single-Particle Mass Spectrometer Data

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: NARSTO EPA_SS_HOUSTON Rapid Single-Particle Mass Spectrometer Data
Description:
Abstract:
The NARSTO_EPA_SS_HOUSTON_RAPID_SPMS_DATA contain individual aerosol particles which were sized and analyzed using a Rapid Single-particle Mass Spectrometer (RSMS) in Houston during the summer of 2000. RSMS aerodynamically focuses one particle size at a time to the source region of a mass spectrometer and employs a 193 nm excimer laser to desorb and ionize the particle components. The ions are analyzed in a single time-of-flight mass spectrometer and the spectrum is digitally recorded. Spectra are only saved if the ion peak in the spectrum is above a threshold level. Background spectra were determined and flagged. Particle size scans were initiated periodically and each size was sampled until 30 particle hits were obtained, unless the sampling time became excessive. Aerodynamic particle sizes ranged from about 40 to 1300 nm and were partitioned into nine discrete size classes logarithmically spaced, roughly, over the range. Single particle data are valuable because for instance a) they are collected and analyzed real time so have excellent temporal resolution, b) the particle-to-particle composition variations (external mixing properties) can be assessed, and c) key particle sources are easily identified since the particles retain source characteristics. The data resulting from these measurements consist of an aerodynamic particle size and a positive mass spectrum of the components for each particle, along with the date and time of measurement and other incidental measurement parameters such as the laser pulse energy. Support for RSMS measurements was provided by the EPA Supersite program and additional funding from the U.S. EPA. The Houston Supersite is one of several Supersites that was established in urban areas within the United States by the U.S. Environmental Protection Agency (EPA) to better understand the measurement, sources, and health effects of suspended particulate matter (PM). The overall goals were to characterize the composition and identify the sources of particulate matter in Southeastern Texas, to develop and test new methods for characterizing fine particulate matter, and to collect data on the physical and chemical characterization of fine particulate matter that can be used to support exposure and health effects studies. NARSTO (formerly North American Research Strategy for Tropospheric Ozone) is a public/private partnership, whose membership spans government, the utilities, industry, and academe throughout Mexico, the United States, and Canada. The primary mission is to coordinate and enhance policy-relevant scientific research and assessment of tropospheric pollution behavior; activities provide input for science-based decision-making and determination of workable, efficient, and effective strategies for local and regional air-pollution management. Data products from local, regional, and international monitoring and research programs are available.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Phares, D.J., K.P. Rhoads, and A.S. Wexler. 2002. Performance of a single ultrafine particle mass spectrometer. Aerosol Sci. Tech. 36:583-592.
Supplemental_Information:
REFERENCE: Phares, D.J., K.P. Rhoads, A.S. Wexler, and M.V. Johnston. 2001. Size resolved ultrafine particle composition analysis Part 2: Houston. J. Geophys. Res. In press.
Supplemental_Information:
REFERENCE: Rhoads, K.P., D.J. Phares, A.S. Wexler, and M.V. Johnston. 2001. Size-resolved ultrafine particle composition analysis Part1: Atlanta. J. Geophys. Res. In press.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20000823
Ending_Date: 20000918
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -95.18
East_Bounding_Coordinate: -95.18
North_Bounding_Coordinate: 29.76
South_Bounding_Coordinate: 29.76
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AIR QUALITY > PARTICULATES
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: RSMS > RAPID SINGLE-PARTICLE MASS SPECTROMETER
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: NARSTO > NORTH AMERICAN RESEARCH STRATEGY FOR TROPOSPHERIC OZONE
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: Particle: Ion Mass-to-charge (m/z) Ratio
Theme_Keyword: Single Particle Mass Spectra
Theme_Keyword: Rsms-2
Theme_Keyword: Es2hustxc603
Theme_Keyword: Hrm-3
Theme_Keyword: Eosdis
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENVIRONMENT
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS > HOUSTON
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Variable
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ANTHONY S. WEXLER
Contact_Position: TECHNICAL CONTACT
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Voice_Telephone: 530-754-6558
Contact_Electronic_Mail_Address: aswexler@ucdavis.edu
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/LARC/SD/ASDC > Atmospheric Science Data Center, Science Directorate, Langley Research Center, NASA
Contact_Person: ASDC USER SERVICES
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Langley Atmospheric Science Data Center
Address: User and Data Services
Address: NASA Langley Research Center
Address: Mail Stop 157D
City: Hampton
State_or_Province: VA
Postal_Code: 23681-2199
Country: USA
Contact_Voice_Telephone: 757-864-8656
Contact_Electronic_Mail_Address: support-asdc@earthdata.nasa.gov
Resource_Description: NARSTO_EPA_SS_HOUSTON_RAPID_SPMS_DATA
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://eosweb.larc.nasa.gov/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://reverb.echo.nasa.gov/reverb/#utf8=%E2%9C%93...
Access_Instructions:
Access NARSTO data via Reverb
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://eosweb.larc.nasa.gov/project/narsto/narsto...
Access_Instructions:
Access NARSTO Data and Information
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.narsto.org/
Access_Instructions:
NARSTO Project Home Page
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://cdiac.ornl.gov/programs/NARSTO/
Access_Instructions:
NARSTO Quality Systems Science Center
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20040115
Metadata_Review_Date: 20140416
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ASDC USER SERVICES
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Langley Atmospheric Science Data Center
Address: User and Data Services
Address: NASA Langley Research Center
Address: Mail Stop 157D
City: Hampton
State_or_Province: VA
Postal_Code: 23681-2199
Country: USA
Contact_Voice_Telephone: 757-864-8656
Contact_Electronic_Mail_Address: support-asdc@earthdata.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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