Dataset: Lye Brook Nitrate Flux

Methods

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

Past Methods (No longer in use)

• Sites
  Started: 2002-10-01
  Ended: 2006-09-30

  10 headwater catchments were sampled for nitrogen flux.
• Chemical analysis sampling
  Started: 2002-10-01
  Ended: 2006-09-30

  Weekly sampling was used for chemical analysis at Cone Pond and HBEF W7. At the other sites sampling was flow based using automated samplers but also included weekly to monthly grab samples.
• Stream stage monitoring
  Started: 2002-10-01
  Ended: 2006-09-30

  Stream stage was continuously monitored using V notch weirs at Cone Pond, HBEF W7, Brush Brook, Buck North and Sleepers River, and natural controls at the other sites. Stage was converted to discharge for sites with natural controls.
• Nitrate flux calculation
  Started: 2002-10-22
  Ended: 2006-09-30

  Daily water flux and weekly NO3 concentrations were used to calculate annual NO3 export at Cone Pond and HBEF W7. Nitrate flux at Sleepers River, Brush Brook and Lye was computed using concentration models based on instantaneous flow, antecedent flow, and seasonal terms.

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

Sampling Equipment

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

Site Characteristics

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

• Site Description

  Lye Brook Wilderness watershed near Branch Pond