Maps showing: 85. Results of Kendall's tau trend analyses of the annual number of days when ix streamflow is (A) equal to zero cubic feet per second and (B) less than 1 cubic foot per second for selected streamflow-gaging stations in and near Oklahoma. .
Vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88). Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Altitude, as used in this report, refers to distance above the vertical datum.
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BSLDEM10M Mean drainage-basin slope CANOPY_PCT Percentage of forest-canopy cover CONTDA Contributing drainage area CSL10_85FM 10-85 stream channel slope GIS Geographic information system GLS Generalized least squares IACWD Interagency Advisory Committee on Water Data IMPNLCD01 Percentage of impervious cover LC01CROP Percentage of drainage area with crop cover LPIII Log-Pearson Type III LOWESS Locally weighted scatterplot smoothing NWISWeb National Water Information System Website ODOT Oklahoma Department of Transportation OK_HIPERMA Percentage of drainage area on the High Plains aquifer OLS Ordinary least squares OUTLETELEV Outlet elevation
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