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

  • Precipitation samples
    Started: 1994-04-06

    Weekly collection of precipation for chemical analysis is performed at two different sites. Precipitation amount, pH and conductivity analysis is performed at the sites. The sample is shipped to the NADP Central Analytical Lab in Illinois for analysis of pH, conductivity, Ca, Mg, K, Na, NH4, NO3, Cl, SO4.

  • Meteorological data
    Started: 1994-01-01

    Continuous meteorology averaged hourly includes ambient temperature at 2 and 10 m height, relative humidity, surface wetness, precipitation, wind speed and direction, solar radiation.

  • Ozone and deposition
    Started: 1994-01-01

    Seasonal continuous ozone (May through September), averaged hourly. Deposition (kg/ha) was calculated for chemicals reporting concentration in mg/l for annual, seasonal and monthly time steps.

Past Methods (No longer in use)

  • Sample analysis
    Started: 1995-07-04
    Ended: 1999-02-02

    Accumulated weekly samples; analysis includes SO2, HNO3, pH, conductivity, acidity and major ions.

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
site_numSite Number

Number assigned to site by network

Nominal
site_idSite Identification Code

Unique site identifier

Nominal
map_codeMap Code

Code used on map of sites

Nominal
stationStation Name

Name of the station

Nominal
activeSite Activity

Site active or inactive

Ordinal
agencyOperating Agency

Agency that operates the site

Nominal
stateState

State where site is located

Nominal
countyCounty

County where site is located

Nominal
time_zoneTime Zone

Time zone site is in

Nominal
latitudeLatitude

Latitude- decimal degrees

Ratio
Unit: degree
Precision: 0.0001
longitudeLongitude

Longitude- decimal degrees

Ratio
Unit: degree
Precision: 0.0001
elevationElevation

Elevation in meters

Ratio
Unit: meter
Precision: 1
mapidMap I.D.

Map identification (nearest town)

Nominal
landusePrimary Land Use

Primary land use surrounding the site

Nominal
terrainTerrain Surrounding Site

Discription of terrain site is on

Nominal
magnetic_declinationMagnetic Declination

Magnetic declination of site

Ratio
Unit: degree
Precision: 0.1
mlmMulti-layer Model

Does site conform to assumptions of multi-layer model?

Ordinal
calcodeNADP Site Code

Site code of co-located NADP site

Nominal
nadp_distanceNADP Distance

Distance to nearest NADP site

Ratio Units:
airs_codeunknown

unknown

Nominal

Sampling Equipment

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

No sampling equipment recorded for this dataset

Site Characteristics

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

  • Site Description

    Green Mountain National Forest, Stratton, just south of the Lye Brook Wilderness Area boundary. Summit of hill with southwest airflow.