CSDMS - User contributions [en]

2026 CSDMS meeting-042

2026-03-24T22:29:49Z

Uashrani: Created page with "{{CSDMS meeting personal information template-2026 |CSDMS meeting first name=Uma |CSDMS meeting last name=Ashrani |CSDMS meeting institute=University of Minnesota |CSDMS meeting city=Minneapolis |CSDMS meeting country=United States |CSDMS meeting state=Minnesota |CSDMS meeting email address=ashra061@umn.edu }} {{CSDMS meeting select clinics1 2026 |CSDMS_meeting_select_clinics1_2026=1) Introduction to Structure-from-Motion Photgrammetry for Mapping Landscapes }} {{CSDMS m..."

{{CSDMS meeting personal information template-2026
|CSDMS meeting first name=Uma
|CSDMS meeting last name=Ashrani
|CSDMS meeting institute=University of Minnesota
|CSDMS meeting city=Minneapolis
|CSDMS meeting country=United States
|CSDMS meeting state=Minnesota
|CSDMS meeting email address=ashra061@umn.edu
}}
{{CSDMS meeting select clinics1 2026
|CSDMS_meeting_select_clinics1_2026=1) Introduction to Structure-from-Motion Photgrammetry for Mapping Landscapes
}}
{{CSDMS meeting select clinics2 2026
|CSDMS_meeting_select_clinics2_2026=1) Morphodynamical simulations using Delft3D FM
}}
{{CSDMS meeting select clinics3 2026
|CSDMS_meeting_select_clinics3_2026=1) TopoRivBlender: Reproducible 3D Visualizations in Blender and Python
}}
{{CSDMS meeting abstract yes no 2026
|CSDMS meeting abstract submit 2026=Yes
}}
{{CSDMS meeting abstract poster Epub 2026
|CSDMS meeting poster Epub submit 2026=Poster
}}
{{CSDMS meeting abstract title temp2026
|CSDMS meeting abstract title=Simulated Effects of Drainage-Ditch Infilling on Wetland Extent
|Working_group_member_WG_FRG=Terrestrial Working Group, Hydrology Focus Research Group, Human Dimensions Focus Research Group
}}
{{CSDMS meeting authors template
|CSDMS meeting coauthor first name abstract=Andrew
|CSDMS meeting coauthor last name abstract=Wickert
|CSDMS meeting coauthor institute / Organization=University of Minnesota
|CSDMS meeting coauthor town-city=Minneapolis
|CSDMS meeting coauthor country=United States
|State=Minnesota
|CSDMS meeting coauthor email address=awickert@umn.edu
}}
{{CSDMS meeting abstract template 2026
|CSDMS meeting abstract=Artificially constructed flow networks (drainage ditches) drain surface water to facilitate farming, but they reduce the area of natural wetlands that are critical for ecosystem health, water filtration, carbon storage, and flood protection. Motivated by case studies in wetland restoration, we aim to systematically model the effects of ditches on wetland extent while evaluating which ditches are protecting nearby infrastructure from inundation. We began by correcting drainage-ditch vector data to align with ditch channels in LiDAR topography, and we hydroconditioned this topography to permit flow continuity under bridges and through culverts. With these data products in hand, we developed methods in GIS to simulate damming ditches. These were applied to the ditch networks in the Minneopa Creek HUC10, located in southern Minnesota. Surface-water depth across the region was modeled using the RichDEM depression-filling algorithm, and was compared between the base case topography (no ditches dammed) and each infilling scenario (one ditch dammed at a time). This comparison allows us to isolate the impacts of each ditch by displaying where water depth would increase as a result of damming the ditch. Model results show that damming certain ditches would cause expansion of present-day water bodies in some cases and restoration of historic wetlands in others. These tools are intended to be used in restoration planning for any region with mapped ditches; the results of infilling a particular ditch can be overlaid with the present-day land use to determine whether infrastructure or farmland would be flooded. Additionally, pre-processing methods improve the accuracy of digitized ditch data and offer tools for hydroconditioning/digital culvert removal in DEMs.
}}
{{blank line template}}

File:CSDMS2025 UmaAshrani.pdf

2025-05-28T20:29:14Z

Uashrani: CSDMS poster from the 2025 meeting

== Summary ==
CSDMS poster from the 2025 meeting

2025 CSDMS meeting-117

2025-03-30T16:50:03Z

Uashrani:

{{CSDMS meeting personal information template-2025
|CSDMS meeting first name=Uma
|CSDMS meeting last name=Ashrani
|CSDMS meeting institute=University of Minnesota
|CSDMS meeting city=Minneapolis
|CSDMS meeting country=United States
|CSDMS meeting state=Minnesota
|CSDMS meeting email address=ashra061@umn.edu
}}
{{CSDMS meeting select clinics1 2025
|CSDMS_meeting_select_clinics1_2025=4) Get lazy with LLMs
}}
{{CSDMS meeting select clinics2 2025
|CSDMS_meeting_select_clinics2_2025=2) From Exploration to Publication: Geospatial Research in the Jupyter Ecosystem
}}
{{CSDMS meeting select clinics3 2025
|CSDMS_meeting_select_clinics3_2025=3) Using the Collaborative Sandpiper Toolchain to Support Interoperability in Geomorphology Research
}}
{{CSDMS meeting abstract yes no 2025
|CSDMS meeting abstract submit 2025=Yes
}}
{{CSDMS meeting abstract poster Epub 2025
|CSDMS meeting poster Epub submit 2025=Poster
}}
{{CSDMS meeting abstract title temp2025
|CSDMS meeting abstract title=Simulating Ditch Removal and Wetland Restoration Using Depression-Filling Algorithms
|Working_group_member_WG_FRG=Terrestrial Working Group, Hydrology Focus Research Group, Human Dimensions Focus Research Group
}}
{{CSDMS meeting authors template
|CSDMS meeting coauthor first name abstract=Zach
|CSDMS meeting coauthor last name abstract=Hilgendorf
|CSDMS meeting coauthor institute / Organization=University of Wisconsin - Eau Claire
|CSDMS meeting coauthor town-city=Eau Claire
|CSDMS meeting coauthor country=United States
|State=Wisconsin
|CSDMS meeting coauthor email address=hilgenzt@uwec.edu
}}
{{CSDMS meeting authors template
|CSDMS meeting coauthor first name abstract=Andrew
|CSDMS meeting coauthor last name abstract=Wickert
|CSDMS meeting coauthor institute / Organization=University of Minnesota
|CSDMS meeting coauthor town-city=Minneapolis
|CSDMS meeting coauthor country=United States
|State=Minnesota
|CSDMS meeting coauthor email address=awickert@umn.edu
}}
{{CSDMS meeting abstract template 2025
|CSDMS meeting abstract=Minnesota’s drainage-ditch network facilitates agriculture by draining standing water, but disrupts hydrological connectivity and the water extent of wetlands. These wetlands are critical for ecosystem health, water filtration, carbon storage, and flood protection (e.g. Hansen et al. 2018, Office of Water 2002). Cowdery et al. (2019) investigated a case study of wetland restoration in western Minnesota, but the study region experienced variable precipitation and environmental factors across pre- and post-restoration periods. In our project, we systematically model drainage-ditch removal and wetland restoration across all Minnesota watersheds. Using computational GIS, we develop a topobathy digital elevation model, which accounts for depressions that currently store water. We run depression-filling algorithms (Barnes 2016, Barnes et al. 2020, Barnes et al. 2021) to first compute water storage in the current landscape. With information on current water storage in hand, we digitally infill drainage ditches and recalculate water storage and extent. These results will isolate the impacts of certain drainage ditches on surface water.

Barnes, Richard. 2016. RichDEM: Terrain Analysis Software. http://github.com/r-barnes/richdem
Barnes, R., Callaghan, K. L., & Wickert, A. D. Computing water flow through complex landscapes – Part 2: Finding hierarchies in depressions and morphological segmentations, Earth Surface Dynamics, 8, 431–445, https://doi.org/10.5194/esurf-8-431-2020, 2020.
Barnes, R., Callaghan, K. L., & Wickert, A. D. Computing water flow through complex landscapes – Part 3: Fill–Spill–Merge: flow routing in depression hierarchies. Earth Surface Dynamics, 9, 105-121, https://doi.org/10.5194/esurf-9-105-2021, 2021.
Cowdery, T., Christenson, C. A., Ziegeweid, J. The Hydrologic Benefits of Wetland and Prairie Restoration in Western Minnesota - Lessons Learned at the Glacial Ridge National Wildlife Refuge, 2002-15. U.S. Geological Survey Scientific Investigations Report 2019–5041, https://doi.org/10.3133/sir20195041, 2019.
Hansen, A. T., Dolph, C. L., Foufoula-Georgiou, E., & Finlay, J. C. Contribution of wetlands to nitrate removal at the watershed scale. Nature Geoscience, 11, 127-132, https://doi.org/10.1038/s41561-017-0056-6, 2018.
Office of Water & Office of Wetlands, Oceans, and Watersheds. Functions and Values of Wetlands. United States Environmental Protection Agency, EPA 843-F-01-002c March 2002, 2002.
}}
{{blank line template}}

2025 CSDMS meeting-117

2025-03-30T16:49:00Z

Uashrani: Created page with "{{CSDMS meeting personal information template-2025 |CSDMS meeting first name=Uma |CSDMS meeting last name=Ashrani |CSDMS meeting institute=University of Minnesota |CSDMS meeting city=Minneapolis |CSDMS meeting country=United States |CSDMS meeting state=Minnesota |CSDMS meeting email address=ashra061@umn.edu }} {{CSDMS meeting select clinics1 2025 |CSDMS_meeting_select_clinics1_2025=4) Get lazy with LLMs }} {{CSDMS meeting select clinics2 2025 |CSDMS_meeting_select_clinic..."

User:Uashrani

2025-03-28T00:32:00Z

Uashrani: Created page with "{{Signup information member |First name member=Uma |Last name member=Ashrani |Institute member=University of Minnesota |City member=Minneapolis |Country member=United States |State member=Minnesota |Confirm email member=ashra061@umn.edu |Working group member=Terrestrial Working Group, Hydrology Focus Research Group, River Network Modeling Initiative |Emaillist group member=yes |Memberagreement=I have read and agree to the Privacy Policy }}"

{{Signup information member
|First name member=Uma
|Last name member=Ashrani
|Institute member=University of Minnesota
|City member=Minneapolis
|Country member=United States
|State member=Minnesota
|Confirm email member=ashra061@umn.edu
|Working group member=Terrestrial Working Group, Hydrology Focus Research Group, River Network Modeling Initiative
|Emaillist group member=yes
|Memberagreement=I have read and agree to the Privacy Policy
}}