Precipitation cations and anions for June, July and August from a wet/dry precipitation, University of Alaska Fairbanks Toolik Field Station, North Slope of Alaska (68 degrees 37' 42"N, 149 degrees 35' 46"W), Arctic LTER 1989 to 2003

Abstract: 

Precipitation, collected from a wet/dry precipitation collector located near University of Alaska Fairbanks Toolik Field Station, North Slope of Alaska (68 degrees 37' 42"N, 149 degrees 35' 46"W) was sent out for standardized EPA rain water analysis. Nutrient chemistry was also run on a sub sample at the field station.

Project Keywords: 

Data set ID: 

1422

EML revision ID: 

12

Short name: 

1989_2003_Precip_Cat-An
People

Keywords: 

Dates

Date Range: 

Thursday, June 1, 1989 to Sunday, August 24, 2003

Publication Date: 

Tuesday, December 12, 2006

Methods: 

An Aerochem Metrics model 301 wet/dry precipitation collector was setup near the Arctic LTER Toolik Experimental Moist Acidic Tussock Plots during the summer months. Precipitation was collected every ten days from 1989 - 1992 and every 7 days from 1993 to present. Dryfall was collected at the end of the August fro 1989 to 1997. Presently dryfall is not collected. If any bird droppings were noted then the sample was discarded. The precipitation volume, pH, NH4-N, NO3-N, and PO4-P were measured at the field station. In 1989 NH4-N and PO4-P chemistry was done manually using standard nutrient procedures (see ARC LTER Methods Manual) with NO3-N being analyzed back in Woods Hole, MA. From 1990-1996 the nutrients were analyze using a Technicon Autoanlyzer or an Alpkem FLOW Solution Analyzer at the station. From 1997 to present analysis of pH, NH4-N and phosphorus are performed at the field station with NO3-N samples being frozen and sent back to Woods Hole, MA for analysis. A sub sample of 250ml was sent for standardized EPA rain water analysis to Global Geochemistry. Global; 6919 Eton Ave.; Canoga Park, CA 91303 until 1997 and then 1998 to present to Shepard Analytical,4545 E. Industrial St., Unit 5P;Simi Valley, CA 93063; Phone: (805) 526-7026; FAX: (805) 526-7032.

Notes: Samples sent from Alaska (not frozen) approx. every 7-10 days; Anion/Cation ratio- acceptable range 0.85-1.15. Values less than detection are negative. Numbers after minus sign are 3x the linear least squares error of fit term for the curve used to calculate data. Missing samples are designated by a #N/A.

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

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Variables Details

(Variables names are in the first line/row of the CSV file and Excel data sheet.)
Year
  • Label: Year
  • Definition: Year when rain was collected
  • Type: Nominal
  • Missing values: None specified
Type
  • Label: Type
  • Definition: Wetfall or Dryfall
  • Type: Nominal
  • Missing values: None specified
Date Collected
  • Label: Date Collected
  • Definition: Date when rain was collected in the field
  • Type: Date/time
  • Date format: dd-mmm-yyyy
  • Missing values:
    • . = Missing or Not Measured
Volume
  • Label: Volume
  • Definition: Volume of water in bucket
  • Type: Physical quantity
  • Unit: milliliter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
Field pH
  • Label: Field pH
  • Definition: pH measure in the field
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
ANION_CATION
  • Label: ANION_CATION
  • Definition: Molar anion over cation ratio
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
pH
  • Label: pH
  • Definition: pH measured in lab
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
GRAN
  • Label: GRAN
  • Definition: Amount of strong acid (using GRAN tiration) uequiv/l
  • Type: Physical quantity
  • Unit: microequivalentPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
COND
  • Label: COND
  • Definition: Conductivity measured in lab
  • Type: Physical quantity
  • Unit: microsiemenPerCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
F umoles_l
  • Label: F umoles_l
  • Definition: Fluorine concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
Cl umoles_l
  • Label: Cl umoles_l
  • Definition: Chlorite concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
NO2 umoles_l
  • Label: NO2 umoles_l
  • Definition: NO2 concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
PO4 umoles_l
  • Label: PO4 umoles_l
  • Definition: PO4 concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
BR umoles_l
  • Label: BR umoles_l
  • Definition: Bromine concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
NO3 umoles_l
  • Label: NO3 umoles_l
  • Definition: Nitrate concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
SO4 umoles_l
  • Label: SO4 umoles_l
  • Definition: SO4 concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
NH4 umoles_l
  • Label: NH4 umoles_l
  • Definition: NH4 concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
NA umoles_l
  • Label: NA umoles_l
  • Definition: Sodium concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
K umoles_l
  • Label: K umoles_l
  • Definition: Potassium concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
CA umoles_l
  • Label: CA umoles_l
  • Definition: Calcium concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
MG umoles_l
  • Label: MG umoles_l
  • Definition: Magnesium concentration
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
NH4-N mg/m2
  • Label: NH4-N mg/m2
  • Definition: NH4 umoles/l * .014 mg/umoles * volume rain * 0.0683 m2 area of bucket
  • Type: Physical quantity
  • Unit: milligramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
NO3-N mg/m2
  • Label: NO3-N mg/m2
  • Definition: NO3 umoles/l * .014 mg/umoles * volume rain * 0.0683 m2 area of bucket
  • Type: Physical quantity
  • Unit: milligramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
PO4-P mg/m2
  • Label: PO4-P mg/m2
  • Definition: PO4 umoles/l * .014 mg/umoles * volume rain * 0.0683 m2 area of bucket
  • Type: Physical quantity
  • Unit: milligramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
TotalN mg/m2
  • Label: TotalN mg/m2
  • Definition: NH4-N mg/m2 + NO3-N mg/m2
  • Type: Physical quantity
  • Unit: milligramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
TLK NH4-N mg/m2
  • Label: TLK NH4-N mg/m2
  • Definition: Sub sample run at Toolik. NH4 umoles/l * .014 mg/umoles * volume rain *0.0683 m2 area of bucket
  • Type: Physical quantity
  • Unit: milligramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
TLK NO3-N mg/m2
  • Label: TLK NO3-N mg/m2
  • Definition: Sub sample run at Toolik. NO3 umoles/l * .014 mg/umoles * volume rain * 0.0683 m2 area of bucket
  • Type: Physical quantity
  • Unit: milligramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
TLK PO4-P mg/m2
  • Label: TLK PO4-P mg/m2
  • Definition: Sub sample run at Toolik.PO4 umoles/l * .014 mg/umoles * volume rain * 0.0683 m2 area of bucket
  • Type: Physical quantity
  • Unit: milligramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured
COMMENTS
  • Label: COMMENTS
  • Definition: Notes about individual data values.
  • Type: Nominal
  • Missing values: None specified
SO4 umole
  • Label: SO4 umole
  • Definition: Sulfate concentraction
  • Type: Physical quantity
  • Unit: micromolePerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing or Not Measured