The Use of Continuous Water-Quality Time-Series Data to Compute Total Phosphorus Loadings for the Turkey River at Garber, Iowa, 2018–20
In support of nutrient reduction efforts, total phosphorus loads and yields were computed for the Turkey River at Garber, Iowa (U.S. Geological Survey station 05412500), for January 1, 2018, to April 30, 2020, based on continuously monitored turbidity sensor data. Sample data were used to create a total phosphorus turbidity-surrogate model. Streamflow-based total phosphorus models were used during periods of missing sensor data to obtain a more complete annual total phosphorus load. This report presents methods needed to accurately compute site-specific loads and track annual progress toward nutrient reduction goals within the State.
Annual total phosphorus loads for the Turkey River at Garber, Iowa, were 1,740 and 1,490 U.S. short tons for 2018 and 2019, respectively, with annual yields ranging from 3.01 to 3.53 pounds per acre per year, compared to a mean statewide yield of 0.73 pound per acre per year needed to achieve the total phosphorus-reduction goal.
Garrett, J.D., 2021, The use of continuous water-quality time-series data to compute total phosphorus loadings for the Turkey River at Garber, Iowa, 2018–20: U.S. Geological Survey Scientific Investigations Report 2020–5131, 13 p., https://doi.org/10.3133/sir20205131.
ISSN: 2328-0328 (online)
Table of Contents
- Methods for Data Collection and Computation
- Sample Water-Quality and Sensor Data
- Continuous Water-Quality Time-Series Data to Compute Nutrient Loadings
- References Cited
|Publication Subtype||USGS Numbered Series|
|Title||The use of continuous water-quality time-series data to compute total phosphorus loadings for the Turkey River at Garber, Iowa, 2018–20|
|Series title||Scientific Investigations Report|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Central Midwest Water Science Center|
|Description||Report: vi, 13 p.; Data Release|
|Online Only (Y/N)||Y|
|Google Analytics Metrics||Metrics page|