Data Set Title / Coverage Name: SAA Ozone Monitoring Points and Seasonal Index Data SAA Version 3.0 Version Date: 3/21/96 ---------------------------------------------------------------- ---------------------------------------------------------------- Identification Information Data Layer Name: o3pts o3ptm_* where * is: 4 = April 5 = May 6 = June 7 = July 8 = August 9 = September 10 = October Description: Ozone Monitoring Points and Data in the vicinity in the Southern Appalachian Asssessment Study Area (1983 - 1993) - Season Ozone Indices and Data Keywords: O3, ozone, pollution, air quality Citation: Native Data Set Environment: UNIX; ARC/INFO 7.0.3 pathname: Scale: n/a File Format: ARC/INFO 7.0.3 Point coverage Use Restrictions: Access Restrictions: ---------------------------------------------------------------- ---------------------------------------------------------------- Spatial Reference Information Datum: North American Datum 1983 (NAD83) Precision: single Projection: Albers Equal Area Units: meters Spheroid: WGS-84 1st Std Parallel: 34 00 00 2nd Std Parallel: 38 00 00 Central Meridian: -82 00 00 Origin: 33 00 00 False Northing: 0.0 False Easting: 0.0 Extent: West Bounding Coord.: -1093614.750 East Bounding Coord.: 607607.562 North Bounding Coord.: 1063117.125 South Bounding Coord.: -277933.781 Distance Resolution: Vertical Resolution: n/a ---------------------------------------------------------------- ---------------------------------------------------------------- Data Quality Information Thematic Accuracy: unknown Confidence: unknown Accuracy Method: unknown Horizontal Accuracy: unknown Confidence: unknown Accuracy Method: unknown Vertical Accuracy: n/a Logical Consistency: Completeness: ---------------------------------------------------------------- ---------------------------------------------------------------- Source Information Source Material: Data was obtained by a subcontractor (ManTech) for A.S.L. and Associates in January 1995 from the AIRS database or from the National Dry Deposition network. The states included in the data retrieval were: Alabama, Georgia, Indiana, Illinois, Mississippi, Missouri, Arkansas, South Carolina, North Carolina, Tennessee, Kentucky, Virginia, West Virginia, Maryland, Pennsylvania, and Ohio. Published references to consult include: Lefohn, A.S. and Jones, C.K. 1986. The characterization of ozone and sulfur dioxide air quality data for assessing possible vegetation effects. JAPCA 36:1123-1129. Lefohn, A.S. and Runeckles, V.C. 1987. Establishing a standard to protect vegetation - ozone exposure/dose considerations. Atmos. Environ. 21:561-568. Organization: Date: Distance Resolution: unknown Contribution: Source Material: Organization: Date: Distance Resolution: unknown Contribution: Source Material: Organization: Date: Distance Resolution: unknown Contribution: --------------------------------------------------------------- --------------------------------------------------------------- Processing History Information Process Description: Two files were recieved from: Doug Shadwick ManTech Environmental 2 Triangle Drive Research Traingle Park, NC 27709 ozone.fskrig.month - was monthly ozone statistics for April through October (1983 - 1993) ozone.fskrig.season - was seasonal ozone statistics for 1983 - 1993 These files were converted into INFO files. The latitude/longitude values were used to generate a point coverage. The INFO files were joined to the respective point coverage and projected to SAA Albers. The following coverage had single point features for each year, so if one wanted to see values for only one particular year, he/she would need to reselect 'year = 19xx': o3pts - Point coverage of seasonal ozone statisitics (1983 - 1993) The following coverages have single point features for each year, so if one wanted to ee values for only one particular year, he/she would need to reselect 'year = 19xx'. That would give values for that year for the month of the coverage. Coverage names indicate the month: (April = 4, May = 5, June = 6, July = 7, August = 8, September = 9, and October = 10). o3ptm_4 o3ptm_5 o3ptm_6 o3ptm_7 o3ptm_8 o3ptm_9 o3ptm_10 Hourly average values were summarized for A.S.L and Associates with software and computer hardware at Montana Tech. University in Helena, MT. ---------------------------------------------------------------- ---------------------------------------------------------------- Entity/Attribute Information Entity: O3PTS.PAT and O3PTM_* (where * indicates the month value) Definition: ozone monitoring points Attributes: ITEM DEFINITIONS SITE: Environmental Protection Agency (EPA) Aeorometric Information Retrieval System (AIRS) number composed of the State FIPS code, County FIPS code, and site ID. NAME: Name given to the site location in AIRS database LAT-DD: Latitude in decimal degrees LONG-DD: Longitude in decimal degrees ELEV: Elevation of Site YEAR: Year the monitoring data was collected PER_DATA_CAP: The percentage hours of valid ozone observation for the April through October time period. This includes all valid values during a 24 hour time period. N: Total number of hours with valid ozone observations SUM0: A summation of all valid ozone hours for April through October N_60: Total number of hours greater than or equal to .060 parts per million (ppm) SUM06: A summation of all valid ozone hours greater than or equal to .060 ppm for April through October N_70: Total number of hours greater than or equal to .060 ppm SUM07: A summation of all valid ozone hours greater than or equal to .070 ppm for April through October N_80: Total number of hours greater than or equal to .080 ppm SUM08: A summation of all valid ozone hours greater than or equal to .080 ppm for April through October N_100: Total number of hours greater than or equal to .060 ppm SUM100: A summation of all valid ozone hours greater than or equal to .100 ppm for April through October N_120: Total number of hours greater than or equal to .120 ppm SUM12: A summation of all valid ozone hours greater than or equal to .120 ppm for April through October W126: A sigmoially weighted index that (1) includes hourly average concentrations as low as 0.04 ppm, (2) has an inflection point near 0.065 ppm, and (3) has an equal weighting of 1 for hourly average concentrations at approximately 0.10 and above. (Lefohn and Runeckles 1987) MIN: the minimum hourly average ozone concentration for the April through October time period P10: the hourly average ozone concentration at the 10th percentile P30: the hourly average ozone concentration at the 30th percentile P50: the hourly average ozone concentration at the 50th percentile P70: the hourly average ozone concentration at the 70th percentile P90: the hourly average ozone concentration at the 90th P95: the hourly average ozone concentration at the 95th percentile P99: the hourly average ozone concentration at the 99th percentile MAX: the maximum hourly average ozone concentration present in April through October Entity: Definition: Attributes: Entity: Definition: Attributes: ---------------------------------------------------------------- ---------------------------------------------------------------- Status Information Data Set Status: Available Release Date: 3/21/96 ---------------------------------------------------------------- ---------------------------------------------------------------- Metadata Reference Information Date: 3/20/96 Review Date: Contact: Bill Jackson US Forest Service 160 Zillicoa St Asheville, NC 28804 (704)-257-4815 ---------------------------------------------------------------- ---------------------------------------------------------------- Distribution Information Distribution Contact: Karl A. Hermann National Biological Service Cooperative University of Tennessee 17 Ridgeway Road Norris, TN 37828 samab@utk.edu (423)-632-1452 Distribution Liability: File Compression Technique: UNIX compress, Arc/Info export format Transfer Size: --------------------------------------------------------------- --------------------------------------------------------------- Contact Information Contact Person: Karl A. Hermann Contact Mail Address: National Biological Service Cooperative University of Tennessee 17 Ridgeway Road Norris, TN 37828 Contact Phone: (423)-632-1452 Contact Fax: (423)-632-1612 Contact email: samab@www.lib.utk Home Page for Updates: http://www.lib.utk.edu/samab ---------------------------------------------------------------- ----------------------------------------------------------------