Oregon7Q10: Oregon 7Q10
In dsobota/Oregon7Q10: Calculation of 7Q10 flow for gauging stations in Oregon

Description Usage Arguments Details Examples

This package contains a function returns the lowest seven-day average discharge expected once every 10 years based on a continuous record of data. The 7Q10 can reflect an annual, seasonal, or monthly statistic. Methods are consistent with the EPA's DFLOW methods.

1
2
3

Oregon7Q10(Station_ID, start_date, end_date, period = "Annual",
  custom_start = NA, custom_end = NA, wy_start = "10-01",
  method_type = "Both")

`Station_ID`	Oregon Water Resources Divison (http://apps.wrd.state.or.us/apps/sw/hydro_near_real_time/) Station ID number
`start_date`	Start date, in the format of "mm/dd/yyyy", for the period of calculation. Make sure to include the quotations.
`end_date`	End date, in the format of "mm/dd/yyyy", for the period of calculation. Make sure to include the quotations.
`period`	The temporal scale for the 7Q10 calculation, can be "Annual" or "Custom". Default is "Annual". Make sure to include quotations.
`custom_start`	If "Custom" is designated as the period, the start date (excluding year) of the custom period in the character format of "mm-dd". Make sure to include quotations.
`custom_end`	If "Custom" is designated as the period, the end date (excluding year) of the custom period in the character format of "mm-dd". Make sure to include quotations.
`wy_start`	Only applicable for the "Annual" period. The water year beginning date (excluding year). The date should be in the character format of "mm-dd". If not specified the default is "10-01". Make sure to include quotations.
`method_type`	The method used to calculate 7Q10. Options are "Distribution Free", "log Pearson Type III", or "Both". Make sure to include quotations.