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Staff Profiles

Timothy Weinmann, M.S. (Former Employee)

Pathways Intern

Fort Collins Science Center

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Southern Rocky Mountains with golden aspen

September 22, 2016

The Western Mountain Initiative (WMI)

Western Mountain Initiative (WMI) is a long-term collaboration between FORT, WERC, NOROCK, USFS, NPS, LANL, and universities worldwide to address changes in montane forests and watersheds due to climate change. Current emphases include altered forest disturbance regimes (fire, die-off, insect outbreaks) and hydrology; interactions between plants, water, snow, nutrient cycles, and climate; and...

Fort Collins Science Center

The Western Mountain Initiative (WMI)

September 22, 2016

The Western Mountain Initiative (WMI)

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December 16, 2022

Soil and surface water nitrogen and caffeine data from 2019, and 2019-2020 trail counts of hikers in Loch Vale Watershed, Rocky Mountain National Park Soil and surface water nitrogen and caffeine data from 2019, and 2019-2020 trail counts of hikers in Loch Vale Watershed, Rocky Mountain National Park

Daily visitor use in Rocky Mountain National Park has increased substantially since 2014, raising questions about the impact of human waste on water quality in popular areas without latrines. Human urine contributes nitrogen, and the ecological and biogeochemical effects of nitrogen from atmospheric deposition have long been the topic of study in Loch Vale watershed, Rocky Mountain...

Fort Collins Science Center

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April 26, 2023

Marmots do not drink coffee: Human urine contributions to the nitrogen budget of a popular national park destination Marmots do not drink coffee: Human urine contributions to the nitrogen budget of a popular national park destination

Reactive nitrogen (Nr) concentrations are higher than expected for mountain lakes in Rocky Mountain National Park, and for many years, high Nr concentrations have been attributed to atmospheric Nr deposition from regional and more distant emission sources, including combustion of fossil fuels and agricultural activities. Here, we estimated the contribution from a very local source, that...

Authors

Jill Baron, Timothy Weinmann, Varun Kirk Acharya, Caitlin Charlton, Koren Nydick, Scott Esser

Ecosystems Mission Area, Ecosystems Land Change Science Program, Fort Collins Science Center

September 16, 2022

Quality assurance report for Loch Vale Watershed, 2010–19 Quality assurance report for Loch Vale Watershed, 2010–19

The Loch Vale Watershed Research and Monitoring Program collects long-term datasets of ecological and biogeochemical parameters in Rocky Mountain National Park to support both (1) management of this protected area and (2) research into watershed-scale ecosystem processes as those processes respond to atmospheric deposition and climate variability. The program collects data on...

Authors

Timothy Weinmann, Jill S. Baron, Amanda Jayo

Ecosystems Mission Area, Ecosystems Land Change Science Program, Fort Collins Science Center

February 24, 2021

Long-term ecosystem and biogeochemical research in Loch Vale watershed, Rocky Mountain National Park, Colorado Long-term ecosystem and biogeochemical research in Loch Vale watershed, Rocky Mountain National Park, Colorado

Loch Vale watershed was instrumented in 1983 with initial support from the National Acid Precipitation Assessment Program to ask whether ecosystems of Rocky Mountain National Park (RMNP) were affected by acidic atmospheric deposition. Research and monitoring activities were expanded in 1991 by the U.S. Geological Survey Water, Energy, and Biogeochemical Budgets program to understand the...

Authors

Jill S. Baron, David W. Clow, Isabella A. Oleksy, Timothy Weinmann, Caitlin Charlton, Amanda Jayo

Ecosystems Mission Area, Fort Collins Science Center

October 31, 2019

2017 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park 2017 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park

The Colorado Department of Public Health and Environment (CDPHE), the National Park Service (NPS), and the U.S. Environmental Protection Agency (EPA) issued the Nitrogen Deposition Reduction Plan (NDRP) in 2007 to address the effects and trends of nitrogen deposition at Rocky Mountain National Park (RMNP). The agencies chose a glidepath approach to reduce wet nitrogen deposition to a...

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Kristi Morris, M. Alisa Mast, Gregory A. Wetherbee, Jill S. Baron, Jim Cheatham, Jim Bromberg, Lisa Devore, James Hou, Kristi Gebhart, Mike Bell, David Gay, Michael Olson, Timothy Weinmann, Daniel Bowker

Water Resources Mission Area, Colorado Water Science Center

July 4, 2017

Adding a nitrogen footprint to Colorado State University’s sustainability plan Adding a nitrogen footprint to Colorado State University’s sustainability plan

As a large land grant university with more than 32,000 students, Colorado State University has both on-campus non-agricultural and agricultural sources of nitrogen (N) released to the environment. We used the Nitrogen Footprint Tool to estimate the amount of N released from different sectors of the university for the CSU 2014 academic year. The largest on campus sources were food...

Authors

Jacob Kimiecik, Jill Baron, Timothy Weinmann, Emily Taylor

Ecosystems Mission Area, Fort Collins Science Center