Seth Siefken
Seth Siefken is a civil engineer based in Helena, Montana.
Seth has been working with USGS since fall 2018, where his projects have included flood frequency analysis, water quality monitoring, writing software, and data collection in the field. He is the surface water specialist for the Wyoming-Montana Water Science Center and is the maintainer of the PeakFQ software program (see Webtools to access).
Professional Experience
U.S. Geological Survey, Wyoming-Montana Water Science Center, 2018-current
Education and Certifications
M.S. Civil Engineering, Colorado State University, Fort Collins, CO, 2019
B.S. Civil Engineering, Montana State University, Bozeman, MT, 2017 (minor in Mathematics)
Seth is a licensed professional engineer in Montana.
Science and Products
June 2022 floods in the Upper Yellowstone River Basin
Yellowstone River fish bypass channel physical and hydraulic monitoring, Montana
Controlling skewness in MOVE3 peak-flow record extensions
Developing CE-QUAL-W2 Models of the Kootenai River and Koocanusa Reservoir, Montana and Idaho
Building a framework to compute continuous grids of basin characteristics for the conterminous United States
Peak-Flow Frequency Analysis for Selected Montana Streamgages
Peak-flow frequency analyses for selected streamgages in Carter, Custer, Fallon, Powder River, and Prairie Counties, Montana, based on data through water year 2022
Physical and Hydraulic Monitoring on the Yellowstone River Fish Bypass Channel, Montana, May 2022 to August 2023
Peak-flow frequency analyses for selected streamgages in the Upper Yellowstone River Basin, based on data through water year 2022
Channel geometry for upstream and downstream cross sections at selected bridge sites in Montana, 2022
Channel geometry for upstream and downstream cross sections at selected bridge sites in Montana, 2021
Peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, Montana, based on data through water year 2022
Probability of Streamflow Permanence (PROSPER) output rasters, 1989-2021, upper Missouri River Basin (ver. 2.0, July 2024)
Cataloging and Digitizing USGS Indirect Measurements for Montana through Water Year 2020
Peak-flow frequency analyses for selected streamgages on tributaries of the Bighorn, Tongue, and Lower Yellowstone Rivers, based on data through water year 2021
Peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, based on data through water year 2018, part 2
Peak-flow frequency analyses for selected streamgages on the Bighorn, Tongue, and Lower Yellowstone Rivers and tributaries and Home Creek, Montana, based on data through water year 2021
Peak-flow frequency analyses for selected streamgages in and near Teton County, Montana, based on data through water year 2019
Seth is the maintainer of the peakfq sofware package. Below is access to the PeakFQ web application that utilizes this software.
PeakFQ
The PeakFQ application performs peak-flow frequency analysis to evaluate flood frequency on rivers and streams.
StreamStats Channel Width Weighting Services
Peak Flow Frequency R Extensions Software Release
Siefken, S.A., McCarthy, P.M., 2021, Peak Flow Frequency R Extensions: U.S. Geological Survey Software Release, DOI: https://doi.org/10.5066/P99ETAVR
Peak Flow Frequency R EXtensions
Flow-Conditioned Parameter Grid Tools
The Flow-Conditioned Parameter Grid (FCPG) Tools are a Python 3 library to make FCPGs for either two-digit Hydrologic Unit Code (HUC2) regions, four-digit Hydrologic Unit Code (HUC4) regions, or other geospatial tiling schemes. These tools can be used in a Linux-based high performance computing (HPC) environment or locally on your system.
Science and Products
June 2022 floods in the Upper Yellowstone River Basin
Yellowstone River fish bypass channel physical and hydraulic monitoring, Montana
Controlling skewness in MOVE3 peak-flow record extensions
Developing CE-QUAL-W2 Models of the Kootenai River and Koocanusa Reservoir, Montana and Idaho
Building a framework to compute continuous grids of basin characteristics for the conterminous United States
Peak-Flow Frequency Analysis for Selected Montana Streamgages
Peak-flow frequency analyses for selected streamgages in Carter, Custer, Fallon, Powder River, and Prairie Counties, Montana, based on data through water year 2022
Physical and Hydraulic Monitoring on the Yellowstone River Fish Bypass Channel, Montana, May 2022 to August 2023
Peak-flow frequency analyses for selected streamgages in the Upper Yellowstone River Basin, based on data through water year 2022
Channel geometry for upstream and downstream cross sections at selected bridge sites in Montana, 2022
Channel geometry for upstream and downstream cross sections at selected bridge sites in Montana, 2021
Peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, Montana, based on data through water year 2022
Probability of Streamflow Permanence (PROSPER) output rasters, 1989-2021, upper Missouri River Basin (ver. 2.0, July 2024)
Cataloging and Digitizing USGS Indirect Measurements for Montana through Water Year 2020
Peak-flow frequency analyses for selected streamgages on tributaries of the Bighorn, Tongue, and Lower Yellowstone Rivers, based on data through water year 2021
Peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, based on data through water year 2018, part 2
Peak-flow frequency analyses for selected streamgages on the Bighorn, Tongue, and Lower Yellowstone Rivers and tributaries and Home Creek, Montana, based on data through water year 2021
Peak-flow frequency analyses for selected streamgages in and near Teton County, Montana, based on data through water year 2019
Seth is the maintainer of the peakfq sofware package. Below is access to the PeakFQ web application that utilizes this software.
PeakFQ
The PeakFQ application performs peak-flow frequency analysis to evaluate flood frequency on rivers and streams.
StreamStats Channel Width Weighting Services
Peak Flow Frequency R Extensions Software Release
Siefken, S.A., McCarthy, P.M., 2021, Peak Flow Frequency R Extensions: U.S. Geological Survey Software Release, DOI: https://doi.org/10.5066/P99ETAVR
Peak Flow Frequency R EXtensions
Flow-Conditioned Parameter Grid Tools
The Flow-Conditioned Parameter Grid (FCPG) Tools are a Python 3 library to make FCPGs for either two-digit Hydrologic Unit Code (HUC2) regions, four-digit Hydrologic Unit Code (HUC4) regions, or other geospatial tiling schemes. These tools can be used in a Linux-based high performance computing (HPC) environment or locally on your system.