Function reference • dataRetrieval

National Water Information System (NWIS)

Functions to retrieve (USGS) NWIS data.

readNWISdv(): Daily Value USGS NWIS Data Retrieval

readNWISuv(): Instantaneous value data retrieval from USGS (NWIS)

readNWISsite(): USGS Site File Data Retrieval

readNWISqw(): Raw Data Import for USGS NWIS QW Data

readNWISstat(): Site statistics retrieval from USGS (NWIS)

readNWISmeas(): Surface-water measurement data retrieval from USGS (NWIS)

readNWISpCode(): USGS Parameter Data Retrieval

readNWISrating(): Rating table for an active USGS streamgage retrieval

readNWISpeak(): Peak flow data from USGS (NWIS)

readNWISgwl(): Groundwater level measurements retrieval from USGS (NWIS)

readNWISuse(): Water use data retrieval from USGS (NWIS)

readNWISdata(): General Data Import from NWIS

whatNWISsites(): Site Data Import from NWIS

whatNWISdata(): USGS data availability

Water Quality Portal (WQP)

Functions to retrieve WQP data.

readWQPqw(): Raw Data Import for Water Quality Portal

readWQPdata(): General Data Import from Water Quality Portal

whatWQPsamples() whatWQPmetrics() whatWQPsites(): Site Data Import from Water Quality Portal

whatWQPdata(): Data Available from Water Quality Portal

readWQPsummary(): Summary of Data Available from Water Quality Portal

National Ground-Water Monitoring Network

Functions to retrieve NGWMN data.

readNGWMNlevels(): Retrieve groundwater levels from the National Ground Water Monitoring Network https://cida.usgs.gov/ngwmn/.

readNGWMNsites(): Retrieve site data from the National Ground Water Monitoring Network https://cida.usgs.gov/ngwmn/.

readNGWMNdata(): Import data from the National Groundwater Monitoring Network https://cida.usgs.gov/ngwmn/.

Network Linked Data Index

Functions to interface with the NLDI.

findNLDI(): R Client for the Network Linked Data Index

get_nldi_sources(): Get current NLDI offerings

Import data

Functions to import different data formats

importRDB1(): Function to return data from the NWIS RDB 1.0 format

importNGWMN(): Function to return data from the National Ground Water Monitoring Network waterML2 format

importWaterML1(): Function to return data from the NWISWeb WaterML1.1 service

importWaterML2(): Parse the WaterML2 timeseries portion of a waterML2 file

importWQP(): Basic Water Quality Portal Data parser

Helper functions

create_NWIS_bib(): Create NWIS data citation

create_WQP_bib(): Create WQP data citation

calcWaterYear(): Extract WY from a date

addWaterYear(): add a water year column

renameNWISColumns(): renameColumns

setAccess(): Set data endpoint

countyCdLookup(): County code look up

stateCdLookup(): State code look up

countyCd: US County Code Lookup Table

parameterCdFile: List of USGS parameter codes

stateCd: US State Code Lookup Table

zeroPad(): Pad string with leading zeros

dataRetrieval dataRetrieval-package: Retrieval functions for USGS and EPA data

pcode_to_name(): Parameter code to characteristic name

parse_WQP(): Convert WQP columns to correct types

Web query utilities

Functions to create web queries

constructNWISURL(): Construct NWIS url for data retrieval

constructUseURL(): Construct URL for NWIS water use data service

constructWQPURL(): Construct WQP url for data retrieval

getQuerySummary(): getting header information from a WQP query

getWebServiceData(): Function to return data from web services

is_dataRetrieval_user(): Is this a dataRetrieval user

checkWQPdates(): Date Check for Water Quality Portal