Andrew J. Miller
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View article: Drilling a Fault is no Bore: Preliminary Analysis and Lessons Learned from Drilling a 2 Kilometer-Deep Corehole in the Rock Valley Fault Zone, Southern Nevada
Drilling a Fault is no Bore: Preliminary Analysis and Lessons Learned from Drilling a 2 Kilometer-Deep Corehole in the Rock Valley Fault Zone, Southern Nevada Open
View article: Quantitative Assessment of Environmental Site Design <scp>vs.</scp> Traditional Storage‐Based Stormwater Management: Impacts on Catchment Hydrology of Minebank Run, Baltimore, <scp>MD</scp>
Quantitative Assessment of Environmental Site Design <span>vs.</span> Traditional Storage‐Based Stormwater Management: Impacts on Catchment Hydrology of Minebank Run, Baltimore, <span>MD</span> Open
Environmental site design (ESD) is a stormwater management approach that prioritises the use of infiltration‐based non‐structural techniques to mimic the natural hydrologic cycle by reducing impervious surfaces, slowing runoff and increasi…
View article: Cloudbursts of the Mid‐Atlantic
Cloudbursts of the Mid‐Atlantic Open
Extreme short‐duration rainfall in the Mid‐Atlantic region of the US is examined through polarimetric radar analyses of storms that produced rainfall accumulations exceeding 1,000‐year values for time scales less than 3 hr. Polarimetric ra…
View article: The Nonpoint Source Challenge: Obstacles and Opportunities for Meeting Nutrient Reduction Goals in the Chesapeake Bay Watershed
The Nonpoint Source Challenge: Obstacles and Opportunities for Meeting Nutrient Reduction Goals in the Chesapeake Bay Watershed Open
This document examines the Chesapeake Bay watershed response to nutrient and sediment reduction efforts under the Clean Water Act's total maximum daily load (TMDL) regulation. As the 2025 Chesapeake Bay TMDL deadline approaches, water qual…
View article: Quantitative Assessment of Environmental Site Design Versus Traditional Storage-Based Stormwater Management: Impacts on Catchment Hydrology of Minebank Run, Baltimore, MD.
Quantitative Assessment of Environmental Site Design Versus Traditional Storage-Based Stormwater Management: Impacts on Catchment Hydrology of Minebank Run, Baltimore, MD. Open
View article: Long‐term changes in riparian connectivity and groundwater chemistry in an urban watershed
Long‐term changes in riparian connectivity and groundwater chemistry in an urban watershed Open
Hydrologic alterations associated with urbanization can weaken connections between riparian zones, streams, and uplands, leading to negative effects on the ability of riparian zones to intercept pollutants carried by surface water runoff a…
View article: Sweet spots for nitrogen restoration in a coastal watershed
Sweet spots for nitrogen restoration in a coastal watershed Open
Reducing nitrogen delivery to coastal waters is a “wicked problem” involving tradeoffs in environmental, economic and equity domains. Because these tradeoffs arise from spatial and temporal complexities in sources and sinks of this element…
View article: Remotely mapping gullying and incision in Maryland Piedmont headwater streams using repeat airborne lidar
Remotely mapping gullying and incision in Maryland Piedmont headwater streams using repeat airborne lidar Open
Headwater streams can contribute significant amounts of fine sediment to downstream waterways, especially when severely eroded and incised. Potential upstream sediment source identification is crucial for effective management of water qual…
View article: Incorporation of Geologic Data into Centralized Database
Incorporation of Geologic Data into Centralized Database Open
View article: Local Cuts and Two-Period Convex Hull Closures for Big Bucket Lot-Sizing Problems.
Local Cuts and Two-Period Convex Hull Closures for Big Bucket Lot-Sizing Problems. Open
Despite the significant attention that they have drawn over the years, big bucket lot-sizing problems remain notoriously difficult to solve. The authors have previously presented evidence that what make these problems difficult are the emb…
View article: A Computational Analysis of Lower Bounds for Big Bucket Production Planning Problems
A Computational Analysis of Lower Bounds for Big Bucket Production Planning Problems Open
In this paper, we analyze a variety of approaches to obtain lower bounds for multilevel production planning problems with big bucket capacities, i.e., problems in which multiple items compete for the same resources. We give an extensive su…
View article: A Combinatorial Active Set Algorithm for Linear and Quadratic Programming
A Combinatorial Active Set Algorithm for Linear and Quadratic Programming Open
We propose an algorithm for linear programming, which we call the Sequential Projection algorithm. This new approach is a primal improvement algorithm that keeps both a feasible point and an active set, which uniquely define an improving d…
View article: SWMM model files for Minebank Run, Baltimore, MD (As-is, ESD, Ponds)
SWMM model files for Minebank Run, Baltimore, MD (As-is, ESD, Ponds) Open
View article: Rainfall Frequency Analysis Based on Long‐Term High‐Resolution Radar Rainfall Fields: Spatial Heterogeneities and Temporal Nonstationarities
Rainfall Frequency Analysis Based on Long‐Term High‐Resolution Radar Rainfall Fields: Spatial Heterogeneities and Temporal Nonstationarities Open
Rainfall frequency analysis methods are developed and implemented based on high‐resolution radar rainfall data sets, with the Baltimore metropolitan area serving as the principal study region. Analyses focus on spatial heterogeneities and …
View article: Rainfall frequency Analysis Based in Long-Term High-Resolution Radar Rainfall Fields: Spatial Heterogeneities and Temporal Nonstationarities
Rainfall frequency Analysis Based in Long-Term High-Resolution Radar Rainfall Fields: Spatial Heterogeneities and Temporal Nonstationarities Open
Rainfall frequency analyses are presented for the Baltimore Metropolitan region based on a 22-year, high-resolution radar rainfall data set. Analyses focus on spatial heterogeneities and time trends in sub-daily rainfall extremes. The rain…
View article: Ephemeral Stream Network Extraction from Lidar‐Derived Elevation and Topographic Attributes in Urban and Forested Landscapes
Ephemeral Stream Network Extraction from Lidar‐Derived Elevation and Topographic Attributes in Urban and Forested Landscapes Open
Under‐representations of headwater channels in digital stream networks can result in uncertainty in the magnitude of headwater habitat loss, stream burial, and watershed function. Increased availability of high‐resolution (<2 m) elevation …
View article: On the composition of convex envelopes for quadrilinear terms
On the composition of convex envelopes for quadrilinear terms Open
Within the framework of the spatial Branch-and-Bound algorithm for solving Mixed-Integer Nonlinear Programs, different convex relaxations can be obtained for multilinear terms by applying associativity in different ways. The two groupings …
View article: The Chesapeake Bay program modeling system: Overview and recommendations for future development
The Chesapeake Bay program modeling system: Overview and recommendations for future development Open
View article: Pavement alters delivery of sediment and fallout radionuclides to urban streams
Pavement alters delivery of sediment and fallout radionuclides to urban streams Open
View article: Theoretical Perspectives of the Baltimore Ecosystem Study: Conceptual Evolution in a Social–Ecological Research Project
Theoretical Perspectives of the Baltimore Ecosystem Study: Conceptual Evolution in a Social–Ecological Research Project Open
The Earth's population will become more than 80% urban during this century. This threshold is often regarded as sufficient justification for pursuing urban ecology. However, pursuit has primarily focused on building empirical richness, and…
View article: Empirical evaluation of two-dimensional unsteady hydraulic models for applications in floodplain forest ecology
Empirical evaluation of two-dimensional unsteady hydraulic models for applications in floodplain forest ecology Open
Two-dimensional unsteady hydraulic models can be attractive tools for characterizing the inundation dynamics relevant to floodplain forest ecosystems because of their ability to make dynamic, spatially continuous predictions. Such models a…
View article: River‐valley morphology, basin size, and flow‐event magnitude interact to produce wide variation in flooding dynamics
River‐valley morphology, basin size, and flow‐event magnitude interact to produce wide variation in flooding dynamics Open
Inundation dynamics are a key driver of ecosystem form and function in river‐valley bottoms. Inundation itself is an outcome of multi‐scalar interactions and can vary strongly within and among river reaches. As a result, establishing to wh…
View article: Impacts of Development Pattern on Urban Groundwater Flow Regime
Impacts of Development Pattern on Urban Groundwater Flow Regime Open
We compare the effects of urban development type and spatial pattern on the hydrology of six small headwater catchments near Baltimore, Maryland, utilizing a three‐dimensional coupled groundwater‐surface water‐land atmosphere model (ParFlo…
View article: Local Cuts and Two-Period Convex Hull Closures for Big-Bucket Lot-Sizing Problems
Local Cuts and Two-Period Convex Hull Closures for Big-Bucket Lot-Sizing Problems Open
Despite the significant attention they have drawn, big-bucket lot-sizing problems remain notoriously difficult to solve. Previous literature contained results (computational and theoretical) indicating that what makes these problems diffic…
View article: Landscape-Scale Disturbance: Insights into the Complexity of Catchment Hydrology in the Mountaintop Removal Mining Region of the Eastern United States
Landscape-Scale Disturbance: Insights into the Complexity of Catchment Hydrology in the Mountaintop Removal Mining Region of the Eastern United States Open
Few land disturbances impact watersheds at the scale and extent of mountaintop removal mining (MTM). This practice removes forests, soils and bedrock to gain access to underground coal that results in likely permanent and wholesale changes…
View article: Use of a Three-Dimensional Reactive Solute Transport Model for Evaluation of Bioreactor Placement in Stream Restoration
Use of a Three-Dimensional Reactive Solute Transport Model for Evaluation of Bioreactor Placement in Stream Restoration Open
A three-dimensional groundwater flow and multispecies reactive transport model was used to strategically design placement of bioreactors in the subsurface to achieve maximum removal of nitrate along restored stream reaches. Two hypothetica…
View article: Untangling the effects of urban development on subsurface storage in <scp>B</scp>altimore
Untangling the effects of urban development on subsurface storage in <span>B</span>altimore Open
The impact of urban development on surface flow has been studied extensively over the last half century, but effects on groundwater systems are still poorly understood. Previous studies of the influence of urban development on subsurface s…