Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

  • Ozone monitoring
    Started: 1987-04-01

    Ozone is recorded continuously from April 1 through September 30. Hourly average values are available for conversion to biologically relevant units.


  • Started: 1987-04-01

    Data collected at 0000 hour represents 60 minute average of data collected from 0000-00590100 would be 0100-0159, etc.

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
24_Hour_GMT24_Hour_GMT

Measurement type: DateTime
Date/Time Format: hh:mm
24_Hour_Local24_Hour_Local

Measurement type: DateTime
Date/Time Format: hh:mm
AQS_Parameter_DescAQS_Parameter_Desc

Measurement type: Nominal
County_CodeCounty_Code

Measurement type:
Date_GMTDate_GMT

Measurement type: DateTime
Date/Time Format: M/D/YYYY
Date_LocalDate_Local

Measurement type: DateTime
Date/Time Format: M/D/YYYY
DatumDatum

Measurement type: Nominal
Day_In_Year_GMTDay_In_Year_GMT

Measurement type:
Detection_LimitDetection_Limit

Measurement type:
Horizontal_AccuracyHorizontal_Accuracy

Measurement type:
LatitudeLatitude

Measurement type:
LongitudeLongitude

Measurement type:
Measurement_UncertaintyMeasurement_Uncertainty

Measurement type: Nominal
Method_DescriptionMethod_Description

Measurement type: Nominal
Method_TypeMethod_Type

Measurement type: Nominal
Parameter_CodeParameter_Code

Measurement type:
POCPOC

Measurement type:
Qualifier_DescriptionQualifier_Description

Measurement type: Nominal
Sample_DurationSample_Duration

Measurement type: Nominal
Sample_FrequencySample_Frequency

Measurement type: Nominal
Sample_MeasurementSample_Measurement

Measurement type:
Site_NumSite_Num

Measurement type:
State_CodeState_Code

Measurement type:
Unit_of_MeasureUnit_of_Measure

Measurement type: Nominal
Year_GMTYear_GMT

Measurement type: DateTime
Date/Time Format: YYYY
Location IDLocation ID

Location ID

Measurement type: Nominal
DateDate

Date

Measurement type: DateTime
Date/Time Format: YYYY-MM-DD
Start TimeStart Time

Start Time

Measurement type: DateTime
Date/Time Format: hh:mm:ss
Sample valueSample value

Sample value

Measurement type: Interval
Units:
Null Data CodeNull Data Code

Null Data Code

Measurement type: Ordinal

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Current Equipment

  • Ozone sampler

    UV Photometric Ozone sampler (US EPA Reference Method)

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    Underhill ozone monitoring station