Imports data from NWIS about meaured parameter based on user-supplied parameter code or codes. This function gets the data from here: https://nwis.waterdata.usgs.gov/nwis/pmcodes
Arguments
- parameterCd
character of USGS parameter codes (or multiple parameter codes). These are 5 digit number codes, more information can be found here: https://help.waterdata.usgs.gov/. To get a complete list of all current parameter codes in the USGS, use "all" as the input.
Value
parameterData data frame with the following information:
| Name | Type | Description |
| parameter_cd | character | 5-digit USGS parameter code |
| parameter_group_nm | character | USGS parameter group name |
| parameter_nm | character | USGS parameter name |
| casrn | character | Chemical Abstracts Service (CAS) Registry Number |
| srsname | character | Substance Registry Services Name |
| parameter_units | character | Parameter units |
Examples
paramINFO <- readNWISpCode(c("01075", "00060", "00931"))
paramINFO <- readNWISpCode(c("01075", "00060", "00931", NA))
# \donttest{
all_codes <- readNWISpCode("all")
#> GET: https://help.waterdata.usgs.gov/code/parameter_cd_query?fmt=rdb&group_cd=%
one_extra <- readNWISpCode(c("01075", "12345"))
#> GET: https://help.waterdata.usgs.gov/code/parameter_cd_nm_query?fmt=rdb&parm_nm_cd=12345
#> Warning: The following pCodes seem mistyped, and no information was returned: 12345
# }