USGS_CAWSC: USGS CAWSC water quality data

USGS_CAWSCR Documentation

USGS CAWSC water quality data

Description

Discrete water quality data from the USGS California Water Science Center

Usage

USGS_CAWSC

Format

a tibble with 16,751 rows and 19 variables

Source

Name of the source dataset.

Station

Station where sample was collected.

Latitude

Latitude in decimal degrees.

Longitude

Longitude in decimal degrees.

Date

Date sample was collected.

Datetime

Date and time sample was collected.

Chlorophyll_Sign

Whether the Chlorophyll value is estimated (extrapolated at low end) or reported as measured.

Chlorophyll

Chlorophyll concentration (\mug L-1).

DissAmmonia_Sign

Whether the Dissolved Ammonia value is lower than reported ("<" because it is below the reporting limit and the reporting limit is used as the value), estimated "~", or reported as the measured value "=".

DissAmmonia

Dissolved Ammonia (mg/L). If DissAmmonia_Sign is <, this is equal to the reporting limit, NA = RL unknown.

DissNitrateNitrite_Sign

Whether the Dissolved Nitrate Nitrite value is lower than reported ("<" because it is below the reporting limit and the reporting limit is used as the value), estimated "~", or reported as the measured value "=".

DissNitrateNitrite

Dissolved Nitrate and Nitrite (mg/L)

DOC

Dissolved Organic Carbon (mg/L)

DissOrthophos_Sign

Whether the Dissolved Orthophosphate value is lower than reported ("<" because it is below the reporting limit and the reporting limit is used as the value), estimated "~", or reported as the measured value "=".

DissOrthophos

Dissolved Ortho-phosphate (mg/L)

DissolvedOxygen

Dissolved oxygen (mg/L) at surface.

pH

pH (dimensionless) at surface.

Temperature

Temperature (°C) at surface.

Conductivity

Specific conductance (\muS cm-1) at surface.

Details

More metadata and information on methods are available here for data and here for metadata.

See Also

wq; for more information on _Sign variables: sign_variables


sbashevkin/discretewq documentation built on July 16, 2025, 6:16 p.m.