Excel file with metadata and data sheets.
Biogeochemistry data set for NSF Arctic Photochemistry project on the North Slope of Alaska.
Download:
2010-2013_Kling_PHOTOCHEM_Chemistry.xlsx (215.39 KB)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. Lake and stream sites use common names (e.g., "Toolik") or ARC LTER number codes. If a soil site, the site is described first by general location then by specific feature (e.g., watertrack) then by specific sampling point (1,2,3,...). 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
Time_hr_dst
- Label: Time_hr_dst
- Definition: Sampling Time in Alaska Daylight Savings Time (1 hour ahead of Alaska Standard Time: if 13:00 DST than 12:00 AST)
- Type: Date/time
- Date format: hh24:mi
- 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
Category
- Label: Category
- Definition: Severity of thermokarst disturbance - None, Moderate, Severe
- Type: Nominal
- Missing values: None specified
Temp_C
- Label: Temp_C
- Definition: Sample water temperature, deg C
- Type: Physical quantity
- Unit: celsius
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
Cond_uS
- Label: Cond_uS
- Definition: Electrical conductivity of the water sample
- Type: Physical quantity
- Unit: microsiemenPerCentimeter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
pH
- Label: pH
- Definition: pH (opposite of the log of the molar hydrogen ion concentration)
- Type: Physical quantity
- Unit: number
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
Alk_ueqL
- Label: Alk_ueqL
- Definition: Total alkalinity (carbonate and non-carbonate alkalinity)
- Type: Physical quantity
- Unit: microequivalentPerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
DOC_uM
- Label: DOC_uM
- Definition: Dissolved organic carbon
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
NH4_OPA_uM
- Label: NH4_OPA_uM
- Definition: Ammonium by the OPA method
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
PO4_uM
- Label: PO4_uM
- Definition: Phosphate (Soluble Reactive Phosphorus)
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
NO3_uM
- Label: NO3_uM
- Definition: Nitrate
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
TDN_uM
- Label: TDN_uM
- Definition: Total dissolved nitrogen
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
TDP_uM
- Label: TDP_uM
- Definition: Total dissolved phosphorus
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
PC_ugL
- Label: PC_ugL
- Definition: Particulate carbon
- Type: Physical quantity
- Unit: microgramPerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
PN_ugL
- Label: PN_ugL
- Definition: Particulate nitrogen
- Type: Physical quantity
- Unit: microgramPerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
PP_uM
- Label: PP_uM
- Definition: Particulate phosphorus
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
Ca_uM
- Label: Ca_uM
- Definition: Calcium
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
Mg_uM
- Label: Mg_uM
- Definition: Magnesium
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
Na_uM
- Label: Na_uM
- Definition: Sodium
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
K_uM
- Label: K_uM
- Definition: Potassium
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
Si_uM
- Label: Si_uM
- Definition: Silica
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
Cl_uM
- Label: Cl_uM
- Definition: Chloride
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values
SO4_uM
- Label: SO4_uM
- Definition: Sulfate
- Type: Physical quantity
- Unit: micromolePerLiter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- . = Missing values