A5006904826- Hydrology and Watershed Management Studies
- Fish Ecology and Management Studies
- Flood Risk Assessment and Management
- Hydrological Forecasting Using AI
- Hydrology and Sediment Transport Processes
- Soil and Water Nutrient Dynamics
- Ecology and biodiversity studies
- Groundwater flow and contamination studies
- Urban Stormwater Management Solutions
- Land Use and Ecosystem Services
- Botany and Plant Ecology Studies
- Peatlands and Wetlands Ecology
- Archaeology and Natural History
- Urban Heat Island Mitigation
- Environmental Monitoring and Data Management
- Water Quality Monitoring Technologies
- Hydrology and Drought Analysis
- Scientific Computing and Data Management
- Soil erosion and sediment transport
- Economic and Environmental Valuation
- Gender, Labor, and Family Dynamics
- Water Quality and Pollution Assessment
- Geology and Paleoclimatology Research
- Plant Water Relations and Carbon Dynamics
- Remote Sensing and LiDAR Applications
Lafayette College
2022-2025
Syracuse University
2016-2023
Indiana University Bloomington
2022
Duke University
2013-2017
Pennsylvania State University
2008-2014
St Nicholas Hospital
2014
University of New Hampshire
2013
University of Massachusetts Boston
2012
Villanova University
2008
Abstract Stream temperature, an important measure of ecosystem health, is expected to be altered by future changes in climate and land use, potentially leading shifts habitat distribution for aquatic organisms dependent on particular temperature regimes. To assess the sensitivity stream change a region where such shift has potential occur, we examine variability controls direct relationship between air water across state Pennsylvania. We characterized via linear nonlinear regression 57 sites...
Abstract Watersheds have served as one of our most basic units organization in hydrology for over 300 years (Dooge, 1988, https://doi.org/10.1080/02626668809491223; McDonnell, 2017, https://doi.org/10.1038/ngeo2964; Perrault, 1674, https://www.abebooks.com/first‐edition/lorigine‐fontaines‐Perrault‐Pierre‐Petit‐Imprimeur/21599664536/bd ). With growing interest groundwater‐surface water interactions and subsurface flow paths, hydrologists are increasingly looking deeper. But the dialog between...
Abstract. There has been an intensive search in recent years for suitable strategies to organize and classify the very heterogeneous group of catchments that characterize our landscape. One strand this work focused on testing value hydrological signatures derived from widely available hydro-meteorological observations catchment classification effort. Here we extend effort by organizing 314 across contiguous US into 12 distinct clusters using six signature characteristics a baseline decade...
Abstract Climate change is altering river temperature regimes, modifying the dynamics of temperature‐sensitive fishes. The ability to map therefore important for understanding impacts future warming. Thermal infrared (TIR) remote sensing has proven effective mapping, but TIR surveys rivers remain expensive. Recent drone‐based systems present a potential solution this problem. However, information regarding utility these miniaturised surveying limited. Here, we results several conducted with...
The world faces an invisible crisis of water quality. Its impacts are wider, deeper, and more uncertain than previously thought require urgent attention—The World Bank—(Damania et al., 2019). Healthy rivers provide vital services for humans other life on Earth. Water pollution can seem like a 20th century problem: solved sorted. In reality, gains in quality have been hard won far from universal, with many pollutants persisting or even increasing. Without widespread awareness action, growing...
Abstract Stream temperature is one of the most critical factors controlling aquatic ecosystem health. Practitioners and researchers from a range fields, including biology, ecology, hydrology, engineering, watershed management, are concerned with how climate environmental changes impacting stream thermal regimes. This primer provides an introduction to various energy water exchange processes that underpin patterns small headwater streams large river systems. An overview exchanges provided,...
[1] The accumulation of discharge along a stream valley is frequently assumed to be the primary control on solute transport processes. Relationships both increasing and decreasing transient storage, decreased gross losses water have been reported with discharge; however, we yet validate these relationships extensive field study. We conducted storage mass recovery analyses artificial tracer studies completed for 28 contiguous 100 m reaches valley, repeated under four base-flow conditions....
[1] Transient storage models are widely used in combination with tracer experiments to characterize stream reaches via calibrated parameter estimates. These parameters quantify the main transport and processes. However, it is implicitly assumed that uniquely identifiable hence provide a unique characterization of stream. We investigate identifiability along conditions control for 10 breakthrough curves (BTC) 100 m pulse injections Stringer Creek, Montana, USA. Identifiability assessed...
Abstract. Distributed catchment models are widely used tools for predicting hydrologic behavior. While distributed require many parameters to describe a system, they expected simulate behavior that is more consistent with observed processes. However, obtaining single set of acceptable can be problematic, as parameter equifinality often results in several behavioral sets fit observations (typically streamflow). In this study, we investigate the extent which impacts typical modeling...
We argue that contracting opens a pathway for organized interests to lobby public managers. Using multilevel modeling techniques, we test this proposition with data from administrative agencies in the American states. find interactions between and managers increase presence of contracting. then demonstrate influence over key state agency decision making is driven, part, by whether an contracts out service delivery. The findings suggest alternate access government makers. Moreover, these...
Organic micropollutants (OMPs) represent an anthropogenic stressor on stream ecosystems. In this work, we combined passive sampling with suspect and nontarget screening enabled by liquid chromatography–high-resolution mass spectrometry to characterize complex mixtures of OMPs in streams draining mixed-use watersheds. Suspect identified 122 unique for target quantification polar organic chemical integrative samplers (POCIS) grab samples collected from 20 sites upstate New York over two...
Abstract. Protection from hydrological extremes and the sustainable supply of services in presence changing climate lifestyles as well rocketing population pressure many parts world are defining societal challenges for hydrology 21st century. A review existing literature shows that these their educational consequences were foreseeable even predicted by some. However, surveys current basis also clearly demonstrate education is not yet ready to prepare students deal with challenges. We present...
Researchers and practitioners alike often need to understand characterize how water solutes move through a stream in terms of the relative importance in-stream near-stream storage transport processes. In-channel subsurface processes are highly variable space time difficult measure. Storage estimates commonly obtained using transient-storage models (TSMs) experimentally solute-tracer test data. The TSM equations represent key with suite numerical parameters. Parameter values estimated via...
Abstract Ungauged headwater basins are an abundant part of the river network, but dominant influences on hydrologic response remain difficult to predict. To address this gap, we investigated ability a physically based watershed model (the Distributed Hydrology‐Soil‐Vegetation Model) represent controls metrics partitioning across five adjacent subcatchments. The study subcatchments, located in Tenderfoot Creek Experimental Forest central Montana, have similar climate variable topography and...
Abstract Novel observation techniques (e.g., smart tracers) for characterizing coupled hydrological and biogeochemical processes are improving understanding of stream network transport transformation dynamics. In turn, these observations thought to enable increasingly sophisticated representations within transient storage models (TSMs). However, TSM parameter estimation is prone issues with insensitivity equifinality, which grow as parameters added model formulations. Currently, it unclear...
Abstract Due to its simplicity, adaptability, and accessibility, the transient storage model has become one of most widely used tools investigate transport exchange processes in streams. In spite ubiquitous use, a number challenges remain, particular with respect conceptualization interpretation. Are parameters good approximations physical properties? What is relevance parameter interactions increasingly complex conceptualizations model? How does novel data inform, improve, or falsify our...
Abstract Cities evolve through phases of construction, demolition, vacancy, and redevelopment, each impacting water movement at the land surface by altering soil hydrologic properties, cover, topography. Currently unknown is whether variable physical vegetative characteristics associated with vacant parcels introduced demolition may absorb rainfall thereby diminish stormwater runoff. To investigate this, we evaluate how lots modulate citywide partitioning synthesizing a novel field dataset...
Abstract In urban areas, the presence of impervious surfaces limits natural drainage and routes water to stormwater infrastructure with finite capacity, making these areas especially prone flooding. Though large floods are responsible for endangering lives causing extensive damage, there is growing evidence that more frequent shallow depths, termed nuisance flooding, can have a high cumulative cost many direct indirect damages. To determine whether locations flooding may be linked...