dataRetrieval (version 2.0.1)

readNWISdv: Raw Data Import for USGS NWIS Data

Description

Imports data from NWIS web service. This function gets the data from here: http://waterservices.usgs.gov/ A list of parameter codes can be found here: http://help.waterdata.usgs.gov/codes-and-parameters/parameters A list of statistic codes can be found here: http://help.waterdata.usgs.gov/code/stat_code_query?fmt=html

Usage

readNWISdv(siteNumber, parameterCd, startDate = "", endDate = "",
  statCd = "00003")

Arguments

siteNumber

character USGS site number. This is usually an 8 digit number. Multiple sites can be requested with a character vector.

parameterCd

character of USGS parameter code(s). This is usually an 5 digit number.

startDate

character starting date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates retrieval for the earliest possible record.

endDate

character ending date for data retrieval in the form YYYY-MM-DD. Default is "" which indicates retrieval for the latest possible record.

statCd

character USGS statistic code. This is usually 5 digits. Daily mean (00003) is the default.

Value

• A data frame with the following columns: lll{ Name Type Description agency character The NWIS code for the agency reporting the data site character The USGS site number Date Date The date of the value code character Any codes that qualify the corresponding value value numeric The numeric value for the parameter } Note that code and value are repeated for the parameters requested. The names are of the form X_D_P_S, where X is literal, D is an option description of the parameter, P is the parameter code, and S is the statistic code (if applicable). There are also several useful attributes attached to the data frame: lll{ Name Type Description url character The url used to generate the data siteInfo data.frame A data frame containing information on the requested sites variableInfo data.frame A data frame containing information on the requested parameters statisticInfo data.frame A data frame containing information on the requested statistics on the data queryTime POSIXct The time the data was returned }

See Also

renameNWISColumns, importWaterML1

Examples

siteNumber <- '04085427'
startDate <- '2012-01-01'
endDate <- '2012-06-30'
pCode <- '00060'
rawDailyQ <- readNWISdv(siteNumber,pCode, startDate, endDate)
rawDailyQAndTempMeanMax <- readNWISdv(siteNumber,c('00010','00060'),
       startDate, endDate, statCd=c('00001','00003'))
rawDailyQAndTempMeanMax <- renameNWISColumns(rawDailyQAndTempMeanMax)
rawDailyMultiSites<- readNWISdv(c("01491000","01645000"),c('00010','00060'),
       startDate, endDate, statCd=c('00001','00003'))
# Site with no data:
x <- readNWISdv("10258500","00060", "2014-09-08", "2014-09-14")
names(attributes(x))
attr(x, "siteInfo")
attr(x, "variableInfo")

site <- "05212700"
notActive <- readNWISdv(site, "00060", "2014-01-01","2014-01-07")