Watershed Data Management (WDM) Database (SC24.WDM) for Salt Creek Streamflow Simulation, DuPage County, Illinois, January 1, 1997, through September 30, 2024

This data release (DR) is the update of the U.S. Geological Survey - ScienceBase (SB) DR (Bera, 2025b), with the processed data for the period October 1, 2023, through September 30, 2024. This DR describes the watershed data management (WDM) database file SC24.WDM.
 
The precipitation data are collected from a tipping-bucket rain gage network and the hydrologic data (stage and discharge) are collected at USGS streamflow-gaging stations in and around Salt Creek watershed in DuPage County, Illinois, as described in Bera (2014). Hourly precipitation and hydrologic data for the period October 1, 2023, through September 30, 2024, are processed following the guidelines described in Bera (2014) and Murphy and Ishii (2006) and appended to SC23.WDM (Bera, 2025b) and renamed as SC24.WDM.
 
Meteorological data (wind speed, solar radiation, air temperature, dewpoint temperature, and potential evapotranspiration) from October 1, 2023, through September 30, 2024, are copied from ARGN24.WDM (Bera, 2025a) and uploaded to SC24.WDM.
 
The missing periods of precipitation data are filled with the nearby rain gage data as a part of the quality assured and quality controlled (QA/QC) process. The complete list of missing precipitation data periods and the nearby stations used to fill in those missing periods during October 1, 2023, through September 30, 2024, is given in Table1.csv. Table1.csv is provided in the comma separated values (CSV) file format. The list of snow affected days of precipitation data and the missing and estimated period of the stage and flow data in SC24.WDM database during the period October 1, 2023, through September 30, 2024, are given in the USGS annual Water Data Report at https://waterdata.usgs.gov.
 
Data in dataset number (DSN) 107 and 801-810 are used in comparisons of precipitation data. DSN 107 contains hourly precipitation data collected at Argonne National Laboratory at Argonne, Illinois. DSN 801-810 contains the processed Next Generation Weather Radar (NEXRAD)-Multisensor Precipitation Estimates (MPE) data from 10 NEXRAD–MPE subbasins in the Salt Creek watershed (Bera and Ortel, 2018). Data in these DSNs are not quality-assured and quality-controlled. The data are downloaded and uploaded daily into a WDM database that is used for the near real-time streamflow simulation system. Data from DSN 107 and 801-810 are copied from this WDM and stored in SC24.WDM. DSN 107 and 801-810 are updated with the data through September 30, 2024. Data in DSN 5400 (water-surface elevation at DuPage County streamflow-gaging station at Elmhurst Quarry; Murphy and Ishii, 2006) and 5700 (water surface elevation at DuPage County streamflow-gaging station at Thorndale, Illinois; Appendix 1, Murphy and Ishii, 2006) are copied and updated through September 30, 2024, similarly. DuPage County Stormwater Management's flood operations website (https://ec.dupagecounty.gov/) provides access to real-time water-surface elevation at the Elmhurst Quarry and water surface elevation at Thorndale, Illinois. This website also provides access to near real-time water resource data throughout the Salt Creek watershed in DuPage County, Illinois.
 
To open the WDM database, SC24.WDM, users may use the Sara Timeseries Utility. The attached "SARA_Timeseries_Utility2020_09.zip" file has Sara Timeseries Utility installation file, "SARA_Timeseries_Utility2020_09.exe". Users need to run this installation file to install this utility. This zip file can also be downloaded from the link provided in the "Related External Resources". Users need to follow the steps below to get the zip file from the weblink and install the utility:

1) Click on “Water Quality Modeling Tools” link at the lower left of the webpage (https://www.sariverauthority.org/services/sustainability/low-impact-dev…) followed by a click on “Download Timeseries Utility” at the end of the page.
2) Extract the downloaded zip file and run the installation file "SARA_Timeseries_Utility2020_09.exe" to install this utility.

Table1.csv can be opened with any text editor or Microsoft Excel.

References Cited:
 
Bera, M., 2025a, Meteorological Database, Argonne National Laboratory, Illinois: U.S. Geological Survey data release, https://doi.org/10.5066/P146RBHK.
 
Bera, M., 2025b, Watershed Data Management (WDM) Database (SC23.WDM) for Salt Creek Streamflow Simulation, DuPage County, Illinois, January 1, 1997, through September 30, 2023: U.S. Geological Survey data release, https://doi.org/10.5066/P13JN3YY.
 
Bera, M., and Ortel, T.W., 2018, Processing of next generation weather radar-multisensor precipitation estimates and quantitative precipitation forecast data for the DuPage County streamflow simulation system: U.S. Geological Survey Open-File Report 2017–1159, 16 p., https://doi.org/10.3133/ofr20171159.
 
Bera, M., 2014, Watershed Data Management (WDM) database for Salt Creek streamflow simulation, DuPage County, Illinois, water years 2005–11: U.S. Geological Survey Data Series 870, 18 p., https://doi.org/10.3133/ds870.
 
Murphy, E.A., and Ishii, A.L., 2006, Watershed Data Management (WDM) Database for Salt Creek Streamflow Simulation, DuPage County, Illinois:  U.S. Geological Survey Open-File Report 2006-1248, 20 p., https://pubs.usgs.gov/of/2006/1248/.