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DOI-USGS / dataRetrieval

This R package is designed to obtain USGS or EPA water quality sample data, streamflow data, and metadata directly from web services.
https://doi-usgs.github.io/dataRetrieval/
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New Madrid, MO Mississippi River gage parameterCd = 00065 #668

Closed geomeg closed 1 year ago

geomeg commented 1 year ago

When I run the following code, my rawDailyDate file is blank: siteNumber <- "07024175" # USGS site number for Mississippi River gage near New Madrid, MO, USA MississippiInfo <- readNWISsite(siteNumber) parameterCd <- "00065" start_date <- "2023-01-01" # Start date for data retrieval end_date <- "2023-05-01" # End date for data retrieval

Raw daily data:

rawDailyData <- readNWISdv( siteNumber, parameterCd, start_date, end_date ) pCode <- readNWISpCode(parameterCd)

ldecicco-USGS commented 1 year ago

If you run the whatNWISdata function, you will see that the site only has discharge (parameterCd = "00060"), and not gage height (which is 00065) for daily data:

what_data <- whatNWISdata(siteNumber = siteNumber)

The column data_type_cd shows "dv" for daily values and "uv" for continuous data. So if you want daily data, you'll need to use discharge:

rawDailyData <- readNWISdv(siteNumbers = siteNumber, 
                           parameterCd = "00060",
                           startDate =  start_date,
                           endDate = end_date
)

If you want gage height, you'll need to use "uv" data:

rawUnitData <- readNWISuv(siteNumbers = siteNumber, 
                           parameterCd = "00065",
                           startDate =  start_date,
                           endDate = end_date
)

Let me know if that doesn't make sense.

geomeg commented 1 year ago

Thank you!

On Mon, May 8, 2023 at 1:56 PM Laura DeCicco @.***> wrote:

If you run the whatNWISdata function, you will see that the site only has discharge (parameterCd = "00060"), and not gage height (which is 00065) for daily data:

what_data <- whatNWISdata(siteNumber = siteNumber)

The column data_type_cd shows "dv" for daily values and "uv" for continuous data. So if you want daily data, you'll need to use discharge:

rawDailyData <- readNWISdv(siteNumbers = siteNumber, parameterCd = "00060", startDate = start_date, endDate = end_date )

If you want gage height, you'll need to use "uv" data:

rawUnitData <- readNWISuv(siteNumbers = siteNumber, parameterCd = "00065", startDate = start_date, endDate = end_date )

Let me know if that doesn't make sense.

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