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Peaks

Schema

This page provides additional information about each field returned by this endpoint. Click "json" in the navigation bar (or add ?f=json to this URL) to get this information in a machine-readable JSON Schema format.
Name Title Type Units Values Description
geometry geometry
time_series_id Time series ID string
A unique identifier representing a single time series. This corresponds to the `id` field in the `time-series-metadata` endpoint.
monitoring_location_id Monitoring location ID string
A unique identifier representing a single monitoring location. This corresponds to the `id` field in the `monitoring-locations` endpoint. Monitoring location IDs are created by combining the agency code of the agency responsible for the monitoring location (e.g. USGS) with the ID number of the monitoring location (e.g. 02238500), separated by a hyphen (e.g. USGS-02238500).
parameter_code Parameter code string
Parameter codes are 5-digit codes used to identify the constituent measured and the units of measure. A complete list of parameter codes and associated groupings can be found at [https://api.waterdata.usgs.gov/ogcapi/v0/collections/parameter-codes/items](https://api.waterdata.usgs.gov/ogcapi/v0/collections/parameter-codes/items).
unit_of_measure Unit of measure string
A human-readable description of the units of measurement associated with an observation.
value Value string
The value of the observation. Values are transmitted as strings in the JSON response format in order to preserve precision.
last_modified Last modified date string
The last time a record was refreshed in our database. This may happen due to regular operational processes and does not necessarily indicate anything about the measurement has changed. You can query this field using date-times or intervals, adhering to RFC 3339, or using ISO 8601 duration objects. Intervals may be bounded or half-bounded (double-dots at start or end). Examples: - A date-time: "2018-02-12T23:20:50Z" - A bounded interval: "2018-02-12T00:00:00Z/2018-03-18T12:31:12Z" - Half-bounded intervals: "2018-02-12T00:00:00Z/.." or "../2018-03-18T12:31:12Z" - Duration objects: "P1M" for data from the past month or "PT36H" for the last 36 hours Only features that have a `last_modified` that intersects the value of datetime are selected.
time Time string
The date an observation represents. You can query this field using date-times or intervals, adhering to RFC 3339, or using ISO 8601 duration objects. Intervals may be bounded or half-bounded (double-dots at start or end). Examples: - A date-time: "2018-02-12T23:20:50Z" - A bounded interval: "2018-02-12T00:00:00Z/2018-03-18T12:31:12Z" - Half-bounded intervals: "2018-02-12T00:00:00Z/.." or "../2018-03-18T12:31:12Z" - Duration objects: "P1M" for data from the past month or "PT36H" for the last 36 hours Only features that have a `time` that intersects the value of datetime are selected. If a feature has multiple temporal properties, it is the decision of the server whether only a single temporal property is used to determine the extent or all relevant temporal properties.
water_year Water Year integer
The water year (running from October 1st to September 30th) a peak occurred.
year Year integer
The calendar year a peak occurred.
month Month integer
The calendar month a peak occurred. If null, the month a peak occurred is unknown.
day Day integer
The day of the month a peak occurred. If null, the day a peak occurred is unknown.
time_of_day Time of Day string (time)
The time of day a peak occurred. If null, the time of day a peak occurred is unknown.
peak_since Peak since integer
If not null, this record represents the peak value for the parameter code since the year contained in "peak_since".
qualifier Qualifier string
This field indicates any qualifiers associated with an observation, for instance if a sensor may have been impacted by ice or if values were estimated.