2010-2013_Cory_PHOTOCHEM_Photochemistry_excel

Excel file with metadata and data sheets.

Photochemistry data set for NSF Photochemistry project on the North Slope of Alaska.

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Variables

SortChem
  • Label: SortChem
  • Definition: A unique number assigned to each sample collected at a specific site at a specific date and time. The year that the sample was collected is followed by a dash and then a sequential number. For example, if 600 samples were collected in 2002, then the first sample collected is 2002-0001 and the last sample is 2002-0600.
  • Type: Nominal
  • Missing values: None specified
Site
  • Label: Site
  • Definition: Site Name. If a soil site, the site is described in the name by general location then specific feature (e.g., watertrack) then specific sampling point (1,2,3,...). Lake and stream sites use common names (e.g., Toolik) or LTER number codes. Exceptions in naming procedure are provided in the Code Information and in the AK-LTER_Site_Info.xls file.
  • Type: Nominal
  • Missing values: None specified
Date
  • Label: Date
  • Definition: Sampling Date
  • Type: Date/time
  • Date format: dd-mmm-yyyy
  • Missing values:
    • . = Missing values
Depth_m
  • Label: Depth_m
  • Definition: Depth from surface of lake, stream, or soil, or a description of location such as "meta" for metalimnion.
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
Distance_km
  • Label: Distance_km
  • Definition: Distance along a stream. In the Kuparuk River, negative values are upstream of the designated starting point (1983 LTER phosphorus dripper, 68.639104°N 149.394326°W) and positive values are downstream. For the Sagavanirktok River, all values are positive starting at the mouth of the river at the Arctic Ocean (70°19.219' N 148°02.259' W) moving upstream.
  • Type: Physical quantity
  • Unit: kilometer
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a300
  • Label: a300
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a305
  • Label: a305
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a313
  • Label: a313
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a320
  • Label: a320
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a340
  • Label: a340
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a380
  • Label: a380
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a395
  • Label: a395
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
a412
  • Label: a412
  • Definition: Naperian absorption coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
Kd305
  • Label: Kd305
  • Definition: Attenuation coefficient at 305 nm.
  • Type: Physical quantity
  • Unit: numberPerMeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
SUVA
  • Label: SUVA
  • Definition: Specific UV absorbance at 254 nm. PerMeterPerMilligramCarbonLiter
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
SR
  • Label: SR
  • Definition: Slope ratio. Ratio of slope of absorbance 275-295 to 300-350 per Helms et al. 2008
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
FI
  • Label: FI
  • Definition: Fluorescence index. Ratio of fluorescence emission intensities at 470 vs 520 nm at excitation wavelength 370 nm.
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = Missing values
Data Source Details

Header lines: 

1

Orientation: 

Column

Field delimiter: 

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Record delimiter: 

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