Mississippi River daily mean discharge: frozen workbook data Publisher: U.S. Geological Survey (USGS), National Water Information System. Parameter 00060 (discharge), statistic 00003 (daily mean), cubic feet per second. Clinton, Iowa, upstream: USGS 05420500. Keokuk, Iowa, downstream: USGS 05474500. Calendar window: 2010-01-01 through 2024-12-31 (5,479 daily rows). Downloaded: 2026-11-03; original response retrieval stamp 22:53:50 -05:00. Exact data request: https://waterservices.usgs.gov/nwis/dv/?format=rdb&sites=05420500,05474500&startDT=2010-01-01&endDT=2024-12-31¶meterCd=00060&siteStatus=all Station information: https://waterdata.usgs.gov/monitoring-location/USGS-05420500/ https://waterdata.usgs.gov/monitoring-location/USGS-05474500/ https://water.usgs.gov/nwc/NWC/sw/man/S05474500.html Service documentation: https://waterservices.usgs.gov/docs/dv-service/daily-values-service-details/ The CSV retains discharge in original cfs units and the supplied qualification flags. A means approved for publication; e means an agency-estimated value. All supplied values carry A. Clinton has 704 estimated values (A:e); Keokuk has 39. Keokuk has no supplied observation for 2022-08-31. The CSV retains that calendar row with NA flow and flag, without compressing the date sequence. There is no analyst imputation, winsorization, or clipping. The R loader divides both discharge columns by 1,000 for model fitting and retains the flags. Initial fitting uses 2010-2019. All candidate orders use common response rows whose response and previous seven daily vectors are observed. Forecast scoring uses identical eligible origins for every candidate and benchmark. The helper returns eligibility details for exclusions associated with the missing day. This is a snapshot of published historical values, not an archive of unrevised real-time releases. USGS may revise its historical records. The workbook reads this bundled snapshot and does not make a live data request. Keokuk is located in the tailwater of a dam/powerplant; these are not unregulated-river observations. SHA-256 of the original USGS RDB response retained in the private pilot archive: fcc9ea447c3c7d58e2ff013c2d18e1fd137d48bd3ffd6a95e0ee19a55fcbf558