read_waterdata_latest_continuous: Get Latest Continuous USGS Water Data

In dataRetrieval: Retrieval Functions for USGS and EPA Hydrology and Water Quality Data

Get Latest Continuous USGS Water Data

Description

Description This endpoint provides the most recent observation for each time series of continuous data. Continuous data are collected via automated sensors installed at a monitoring location. They are collected at a high frequency and often at a fixed 15-minute interval. Depending on the specific monitoring location, the data may be transmitted automatically via telemetry and be available on WDFN within minutes of collection, while other times the delivery of data may be delayed if the monitoring location does not have the capacity to automatically transmit data. Continuous data are described by parameter name and parameter code. These data might also be referred to as "instantaneous values" or "IV"

Usage

read_waterdata_latest_continuous(
  monitoring_location_id = NA_character_,
  parameter_code = NA_character_,
  statistic_id = NA_character_,
  properties = NA_character_,
  time_series_id = NA_character_,
  daily_id = NA_character_,
  approval_status = NA_character_,
  unit_of_measure = NA_character_,
  qualifier = NA_character_,
  value = NA,
  last_modified = NA_character_,
  skipGeometry = NA,
  time = NA_character_,
  bbox = NA,
  limit = NA,
  max_results = NA,
  convertType = TRUE
)

Arguments

monitoring_location_id	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 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://help.waterdata.usgs.gov/codes-and-parameters/parameters.
statistic_id	A code corresponding to the statistic an observation represents. Example codes include 00001 (max), 00002 (min), and 00003 (mean). A complete list of codes and their descriptions can be found at https://help.waterdata.usgs.gov/code/stat_cd_nm_query?stat_nm_cd=%25&fmt=html.
properties	A vector of requested columns to be returned from the query. Available options are: geometry, id, time_series_id, monitoring_location_id, parameter_code, statistic_id, time, value, unit_of_measure, approval_status, qualifier, last_modified
time_series_id	A unique identifier representing a single time series. This corresponds to the id field in the time-series-metadata endpoint.
daily_id	A universally unique identifier (UUID) representing a single version of a record. It is not stable over time. Every time the record is refreshed in our database (which may happen as part of normal operations and does not imply any change to the data itself) a new ID will be generated. To uniquely identify a single observation over time, compare the time and time_series_id fields; each time series will only have a single observation at a given time.
approval_status	Some of the data that you have obtained from this U.S. Geological Survey database may not have received Director's approval. Any such data values are qualified as provisional and are subject to revision. Provisional data are released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its use. This field reflects the approval status of each record, and is either "Approved", meaining processing review has been completed and the data is approved for publication, or "Provisional" and subject to revision. For more information about provisional data, go to https://waterdata.usgs.gov/provisional-data-statement/.
unit_of_measure	A human-readable description of the units of measurement associated with an observation.
qualifier	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.
value	The value of the observation. Values are transmitted as strings in the JSON response format in order to preserve precision.
last_modified	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. 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.
skipGeometry	This option can be used to skip response geometries for each feature. The returning object will be a data frame with no spatial information.
time	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.
bbox	Only features that have a geometry that intersects the bounding box are selected.The bounding box is provided as four or six numbers, depending on whether the coordinate reference system includes a vertical axis (height or depth). Coordinates are assumed to be in crs 4326. The expected format is a numeric vector structured: c(xmin,ymin,xmax,ymax). Another way to think of it is c(Western-most longitude, Southern-most latitude, Eastern-most longitude, Northern-most longitude).
limit	The optional limit parameter is used to control the subset of the selected features that should be returned in each page. The maximum allowable limit is 10000. It may be beneficial to set this number lower if your internet connection is spotty. The default (NA) will set the limit to the maximum allowable limit for the service.
max_results	The optional maximum number of rows to return. This value must be less than the requested limit.
convertType	logical, defaults to TRUE. If TRUE, the function will convert the data to dates and qualifier to string vector.

Examples

site <- "USGS-451605097071701"
pcode <- "72019"
uv_data_sf <- read_waterdata_latest_continuous(monitoring_location_id = site,
                              parameter_code = pcode)

uv_data_trim <- read_waterdata_latest_continuous(monitoring_location_id = site,
                          parameter_code = pcode, 
                          properties = c("monitoring_location_id",
                                         "value",
                                         "time"))

uv_data <- read_waterdata_latest_continuous(monitoring_location_id = site,
                           parameter_code = pcode,
                           skipGeometry = TRUE)
                        
uv_data_period <- read_waterdata_latest_continuous(monitoring_location_id = site,
                                  parameter_code = pcode,
                                  time = "P7D")

multi_site <- read_waterdata_latest_continuous(monitoring_location_id =  c("USGS-451605097071701",
                                                          "USGS-14181500"),
                              parameter_code = c("00060", "72019"))

dataRetrieval documentation built on June 28, 2025, 1:08 a.m.