Angela E Gregory


Angela Gregory is a hydrologist at the Dakota Water Science Center in Bismarck, ND. She is currently finishing a Ph.D. in Civil Engineering at the University of New Mexico and also has an M.S. and B.S. in Civil Engineering. She has specialized experience in hydrodynamic modeling, watershed hydrology and statistical methods.


University of New Mexico, Ph.D. of Civil Engineering                            Albuquerque, NM

Dissertation: “Snowpack Accumulation and Melt Modeling in                   Expected July 2019

                       Forests of the Southwestern U.S.”           


University of New Mexico, M.S. of Applied Statistics                             Albuquerque, NM

                                                                                                                 Expected July 2020


University of New Mexico, M.S. of Civil Engineering                             Albuquerque, NM

Thesis: “Incipient Motion of Mixed Sediment Load on the Rio Chama”    July 2013


New Mexico State University, B.S. of Civil Engineering                         Las Cruces, NM

Focus: Water Resources                                                                          May 2008


Recent Experience

U.S. Geological Survey                                                                            Bismarck, ND         

Hydrologist (May 2018 – Present)

Completed statistical analysis of stochastic streamflow traces and gave presentation on findings at International Souris River Study Board meeting.


University of New Mexico                                                                        Albuquerque, NM   

Research Assistant (January 2013 – April 2018)

Independently developed physically based snow model, distributed hydrometeorological inputs with spatial statistics methods, modeled snowpack dynamics in over 1000 forest stands, and performed detailed data analysis. Collaborated with interdisciplinary teams and provided expertise to 1) improve understanding of effects of bendway weir installation on local food sources and flow patterns in the Rio Grande, and 2) develop a coupled riparian evolution and hydrodynamic model. Managed five undergraduate and graduate students to successfully complete objectives for multiple projects.


The Nature Conservancy                                                                        Albuquerque, NM  

Consultant (April 2016 – August 2017)

Developed experimental design of soil moisture-canopy density study. Successfully completed data collection, exploratory data analysis, ANOVA, and multiple-linear regression of hydrometeorological data. Provided final report, synthesizing literature review, methods and findings.


Forest Stewards Guild                                                                            Albuquerque, NM  

Consultant (January 2017 – April 2017)

Performed QA/QC on 10 meteorological variables collected for a two-year period at 15-minute intervals from Zuni Mountains using R programming language. Completed exploratory data analysis and multiple linear regression on meteorological data and stream gage data to determine temporal rainfall and runoff relationships.


Other Professional Experience

Hydraulic Engineer, US DOI Bureau of Reclamation, January 2012 – November 2012

Engineer Associate I, Smith Engineering Company, March 2009 – February 2011

Watershed Engineer SCEP, USDA Forest Service, June 2005 – February 2009

Hydrologic Technician SCEP, DOI US Geological Service, November 2002 – May 2005


Teaching and Lectures

Lecture: The Role of Forests in Hydrological Processes, UNM Water Resources III- Field Problems, May 2017

Lecture: Two-Dimensional Hydrodynamic Modeling, UNM Open Channel Hydraulics, Spring 2016

Course: Statics, UNM Civil Engineering Department, Fall 2015

Mentor: UNM Statistics Department, Advanced Data Analysis I, Fall 2015

Lab Assistant: UNM Fluid Mechanics, Fall 2013

Grader: NMSU Environmental Engineering, Spring 2008


Presentations and Posters

International Souris River Study Board (presentation): “Update on the Souris River Stochastic Model.”

Western Snow Conference (presentation): “Response of Soil Moisture to Snowmelt as a Function of Canopy Density in the Ponderosa Pine/Mixed Conifer Forest Transition Zone of the Valles Caldera National Preserve, NM”

New Mexico Water Resources Research Institute (poster): “Short-Term Response of Soil Water Content to Forest Canopy Conditions in the Valles Caldera National Preserve, NM”

New Mexico Society of Professional Engineers (presentation): “Forest thinning as a mechanism for increasing snowpack: modeling radiative balance and snowpack in the Valles Caldera National Preserve, NM.

Rio Grande Water Fund (presentation): “Update: Watershed disturbance and restoration impacts on hydrologic function relative to increased snowmelt water yields, stream water quality, and species conservation in the Jemez Mountains, New Mexico: Model calibration and validation on a landscape scale.” 

Southern Rockies Landscape Conservation Cooperative (presentation): “Modeling forest thinning to optimize snowpack in the Valles Caldera.”

New Mexico Water Resources Research Institute (poster): “Evaluating the impacts of particulate matter deposition on snow melt processes in the Upper Rio Grande.”

New Mexico Water Resources Research Institute (poster): “Incipient motion of mixed load sediments on the Rio Chama.”