Mackenzie Marti is a Physical Scientist with the USGS, Central Midwest Water Science Center, located in Urbana, Illinois.
Mackenzie joined the USGS in 2020 in the Statistical Hydrology and Water Availability section in the Urbana, Illinois, office. She works on projects related to flood-frequency analysis in Illinois, estimating streamflow at ungaged basins, implementing surface water statistics in StreamStats, and investigating changes in peak flows in the central United States. Prior to joining the USGS, Mackenzie was a geologist at the Illinois State Geological Survey, where she collected and analyzed hydrologic data across the streams and wetlands of Illinois.
Professional Experience
2020-Present, Physical Scientist, USGS, Central Midwest Water Science Center, Urbana, Illinois
2018-2020, Wetlands Geology Specialist, Illinois State Geological Survey, Champaign, Illinois
Education and Certifications
M.S., Fluvial Geomorphology/Earth Sciences, Dartmouth College, 2017
B.S., Geology, University of Illinois at Urbana-Champaign, 2015
Science and Products
Water-quality and streamflow datasets used in Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2017
In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project. One of the major goals of the NAWQA project was to determine how river water quality has changed over time. To support that goal, long-term consistent and comparable monitoring has been conducted by the USGS on streams and r
Method for identification of reservoir regulation within U.S. Geological Survey streamgage basins in the Central United States using a decadal dam impact metric
Researchers routinely study streamflow data to understand the effects of natural climate variability and anthropogenic climate change, and to develop methods for estimating streamflow at ungaged locations. These studies require streamflow data that are not modified or largely altered by other anthropogenic activities, such as reservoirs or diversions. This report discusses a method for identifying
Authors
Mackenzie K. Marti, Karen R. Ryberg
Flood-frequency analysis in the Midwest: Addressing potential nonstationarity of annual peak-flow records
Flood-frequency analysis is essential in numerous water-resource management applications, including critical structure design and flood-plain mapping. A basic assumption within Bulletin 17C [1], the standardized guidelines for conducting flood-frequency analysis, is that basins without major hydrologic alterations, such as regulation or urbanization, exhibit stationary statistical properties of th
Authors
Mackenzie K. Marti, Karen R. Ryberg, Sara B. Levin
Estimated daily mean streamflow in Iowa using the Flow-Duration Curve Transfer Method StreamStats application
The U.S. Geological Survey (USGS) operates many streamgages throughout the country that provide historical and real-time daily streamflow information. Accurate estimates of daily streamflow and the percentage of time that a certain volume of streamflow occurs or is exceeded in a stream is crucial information for structure design and other activities conducted by federal, state, and local officials
Authors
Mackenzie K. Marti, Harper Nicole Wavra, Andrea Medenblik
Estimation of regional flow-duration curves for Indiana and Illinois
Flow-duration curves (FDCs) of daily streamflow are useful for many applications in water resources planning and management but must be estimated at ungaged sites. One common technique for estimating FDCs at ungaged sites in a given region is to use equations obtained by linear regression of FDC quantiles against multiple basin characteristics that can be computed by means of a geographic informat
Authors
Thomas M. Over, James D. Riley, Mackenzie K. Marti, Jennifer B. Sharpe, Donald V. Arvin
Science and Products
- Data
Water-quality and streamflow datasets used in Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2017
In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project. One of the major goals of the NAWQA project was to determine how river water quality has changed over time. To support that goal, long-term consistent and comparable monitoring has been conducted by the USGS on streams and r - Publications
Method for identification of reservoir regulation within U.S. Geological Survey streamgage basins in the Central United States using a decadal dam impact metric
Researchers routinely study streamflow data to understand the effects of natural climate variability and anthropogenic climate change, and to develop methods for estimating streamflow at ungaged locations. These studies require streamflow data that are not modified or largely altered by other anthropogenic activities, such as reservoirs or diversions. This report discusses a method for identifyingAuthorsMackenzie K. Marti, Karen R. RybergFlood-frequency analysis in the Midwest: Addressing potential nonstationarity of annual peak-flow records
Flood-frequency analysis is essential in numerous water-resource management applications, including critical structure design and flood-plain mapping. A basic assumption within Bulletin 17C [1], the standardized guidelines for conducting flood-frequency analysis, is that basins without major hydrologic alterations, such as regulation or urbanization, exhibit stationary statistical properties of thAuthorsMackenzie K. Marti, Karen R. Ryberg, Sara B. LevinEstimated daily mean streamflow in Iowa using the Flow-Duration Curve Transfer Method StreamStats application
The U.S. Geological Survey (USGS) operates many streamgages throughout the country that provide historical and real-time daily streamflow information. Accurate estimates of daily streamflow and the percentage of time that a certain volume of streamflow occurs or is exceeded in a stream is crucial information for structure design and other activities conducted by federal, state, and local officialsAuthorsMackenzie K. Marti, Harper Nicole Wavra, Andrea MedenblikEstimation of regional flow-duration curves for Indiana and Illinois
Flow-duration curves (FDCs) of daily streamflow are useful for many applications in water resources planning and management but must be estimated at ungaged sites. One common technique for estimating FDCs at ungaged sites in a given region is to use equations obtained by linear regression of FDC quantiles against multiple basin characteristics that can be computed by means of a geographic informatAuthorsThomas M. Over, James D. Riley, Mackenzie K. Marti, Jennifer B. Sharpe, Donald V. Arvin