whatNWISdata: USGS data availability

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

Description

Imports a table of available parameters, period of record, and count. See https://waterservices.usgs.gov/rest/Site-Service.html for more information.

Usage

whatNWISdata(...)

Arguments

...	see https://waterservices.usgs.gov/rest/Site-Service.html for a complete list of options. A list of arguments can also be supplied.

Value

A data frame with the following columns:

Name	Type	Description
agency_cd	character	The NWIS code for the agency reporting the data
site_no	character	The USGS site number
station_nm	character	Site name
site_tp_cd	character	Site type
dec_lat_va	numeric	Decimal latitude
dec_long_va	numeric	Decimal longitude
coord_acy_cd	character	Latitude-longitude accuracy
dec_coord_datum_cd	character	Decimal Latitude-longitude datum
alt_va	character	Altitude of Gage or land surface
alt_acy_va	character	Altitude accuracy
alt_datum_cd	character	Altitude datum
huc_cd	character	Hydrologic unit code
data_type_cd	character	Data type
parm_cd	character	Parameter code
stat_cd	character	Statistical code
dd_nu	character	Internal database key
loc_web_ds	character	Additional measurement description
medium_grp_cd	character	Medium group code
parm_grp_cd	character	Parameter group code
srs_id	character	SRS ID
access_cd	character	Access code
begin_date	Date	Begin date
end_date	Date	End date
count_nu	integer	Record count
parameter_group_nm	character	Parameter group name
parameter_nm	character	Parameter name
casrn	character	Chemical Abstracts Service (CAS) Registry Number
srsname	character	Substance Registry Services
parameter_units	character	Parameter units

There are also several useful attributes attached to the data frame:

Name	Type	Description
url	character	The url used to generate the data
comment	character	Header comments from the RDB file
queryTime	POSIXct	The time the data was returned

Examples

## Not run: 
availableData <- whatNWISdata(siteNumber = '05114000')
# To find just unit value ('instantaneous') data:
uvData <- whatNWISdata(siteNumber = '05114000',service="uv")
uvDataMulti <- whatNWISdata(siteNumber = c('05114000','09423350'),service=c("uv","dv"))
flowAndTemp <- whatNWISdata(stateCd = "WI", service = "uv", 
                             parameterCd = c("00060","00010"),
                             statCd = "00003")

## End(Not run)

dataRetrieval documentation built on Sept. 28, 2017, 5:04 p.m.