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Prof. Theodore Endreny
State University of New York College of Environmental Science and Forestry

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Research Keywords & Expertise

0 Hydrology
0 Modeling and Simulation
0 Natural Resource Management
0 Water Resources Engineering
0 River Basin Restoration

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Hydrology
River Basin Restoration

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Short Biography

Our research goal is to develop software tools for the restoration of natural resources and delivery of ecosystem services, in order to improve human wellbeing and biodiversity. Much of our work is in support of i-Tree tools, and we lead development of the i-Tree tools research suite.

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Journal article
Published: 14 June 2021 in Journal of Environmental Management
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Denitrification is a significant regulator of nitrogen pollution in diverse landscapes but is difficult to quantify. We examined relationships between denitrification potential and soil and landscape properties to develop a model that predicts denitrification potential at a landscape level. Denitrification potential, ancillary soil variables, and physical landscape attributes were measured at study sites within urban, suburban, and forested environments in the Gwynns Falls watershed in Baltimore, Maryland in a series of studies between 1998 and 2014. Data from these studies were used to develop a statistical model for denitrification potential using a subset of the samples (N = 188). The remaining measurements (N = 150) were used to validate the model. Soil moisture, soil respiration, and total soil nitrogen were the best predictors of denitrification potential (R2adj = 0.35), and the model was validated by regressing observed vs. predicted values. Our results suggest that soil denitrification potential can be modeled successfully using these three parameters, and that this model performs well across a variety of natural and developed land uses. This model provides a framework for predicting nitrogen dynamics in varying land use contexts. We also outline approaches to develop appropriate landscape-scale proxies for the key model inputs, including soil moisture, respiration, and soil nitrogen.

ACS Style

Emily Stephan; Peter Groffman; Philippe Vidon; John C. Stella; Theodore Endreny. Interacting drivers and their tradeoffs for predicting denitrification potential across a strong urban to rural gradient within heterogeneous landscapes. Journal of Environmental Management 2021, 294, 113021 .

AMA Style

Emily Stephan, Peter Groffman, Philippe Vidon, John C. Stella, Theodore Endreny. Interacting drivers and their tradeoffs for predicting denitrification potential across a strong urban to rural gradient within heterogeneous landscapes. Journal of Environmental Management. 2021; 294 ():113021.

Chicago/Turabian Style

Emily Stephan; Peter Groffman; Philippe Vidon; John C. Stella; Theodore Endreny. 2021. "Interacting drivers and their tradeoffs for predicting denitrification potential across a strong urban to rural gradient within heterogeneous landscapes." Journal of Environmental Management 294, no. : 113021.

Conference paper
Published: 29 September 2020 in Transactions on Petri Nets and Other Models of Concurrency XV
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The variables that influence the price formation mechanisms of urban real estate units concern both the socio-economic both the infrastructural and environmental system of the city. In literature, the links between real estate and territory are not widely investigated. This is especially with reference to the correlation levels between Real Estate Prices and the provision of urban greening. In this perspective, aim of the research is to examine functional relations between property prices, environmental factors, and socio-economic parameters. The applied methodology is based on statistical correlation analysis. This supports the construction of an innovative model for the estimation of the function that explains the dependence of property values on social and environmental factors that characterize the city. The elaborations concern data derived with the Tool i-Tree Landescape. Through Geographic Information Systems (GIS), these data are useful to obtain thematic maps illustrating the spatial distribution of Real Estate Prices, Tree Cover, and Per-Capita Income. The surveyed geographical units are the Census Blocks of Buffalo City in New York State (USA).

ACS Style

Antonio Nesticò; Theodore Endreny; Maria Rosaria Guarini; Francesco Sica; Debora Anelli. Real Estate Values, Tree Cover, and Per-Capita Income: An Evaluation of the Interdependencies in Buffalo City (NY). Transactions on Petri Nets and Other Models of Concurrency XV 2020, 12251, 913 -926.

AMA Style

Antonio Nesticò, Theodore Endreny, Maria Rosaria Guarini, Francesco Sica, Debora Anelli. Real Estate Values, Tree Cover, and Per-Capita Income: An Evaluation of the Interdependencies in Buffalo City (NY). Transactions on Petri Nets and Other Models of Concurrency XV. 2020; 12251 ():913-926.

Chicago/Turabian Style

Antonio Nesticò; Theodore Endreny; Maria Rosaria Guarini; Francesco Sica; Debora Anelli. 2020. "Real Estate Values, Tree Cover, and Per-Capita Income: An Evaluation of the Interdependencies in Buffalo City (NY)." Transactions on Petri Nets and Other Models of Concurrency XV 12251, no. : 913-926.

Editorial
Published: 18 September 2020 in Water
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River basins are complex spatiotemporal systems, and too often, restoration efforts are ineffective due to a lack of understanding of the purpose of the system, defined by the system structure and function. The river basin system structure includes stocks (e.g., water volume or quality), inflows (e.g., precipitation or fertilization), outflows (e.g., evaporation or runoff), and positive and negative feedback loops with delays in responsiveness, that all function to change or stabilize the state of the system (e.g., the stock of interest, such as water level or quality). External drivers on this structure, together with goals and rules, contribute to how a river basin functions. This article reviews several new research projects to identify and rank the twelve most effective leverage points to address discrepancies between the desired and actual state of the river basin system. This article demonstrates river basin restoration is most likely to succeed when we change paradigms rather than trying to change the system elements, as the paradigm will establish the system goals, structure, rules, delays, and parameters.

ACS Style

Theodore A. Endreny. Leverage Points Used in a Systems Approach of River and River Basin Restoration. Water 2020, 12, 2606 .

AMA Style

Theodore A. Endreny. Leverage Points Used in a Systems Approach of River and River Basin Restoration. Water. 2020; 12 (9):2606.

Chicago/Turabian Style

Theodore A. Endreny. 2020. "Leverage Points Used in a Systems Approach of River and River Basin Restoration." Water 12, no. 9: 2606.

Conference paper
Published: 01 September 2020 in Blockchain Technology and Innovations in Business Processes
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The market value of urban property depends not only on its specific characteristics, but also on reference macro-economic variables such as socio-demographic, productive, infrastructural, and environmental quality and associated ecosystem services. The links between urban property real estate values and ecosystem services, particularly those generated by urban forests, are not yet sufficiently investigated and hence are the focus of this research. The study site is the City of Syracuse, New York, USA, with well characterized urban forest ecosystem services and property values. The study correlated real estate values and parameters of economic condition (per-capita income), ecosystem services (carbon sequestration), and urban forestry system (tree canopy area). The median home value correlation with both per capita income had an R2 = 0.8748 and with carbon sequestration it had an R2 = 0.7757. The data was obtained in the online i-Tree Landscape tool. Geographic information systems analysis was used to create maps that support analysis of the correlation levels between the involved variables.

ACS Style

Antonio Nesticò; Francesco Sica; Theodore Endreny. Real Estate Values and Ecosystem Services: Correlation Levels. Blockchain Technology and Innovations in Business Processes 2020, 802 -810.

AMA Style

Antonio Nesticò, Francesco Sica, Theodore Endreny. Real Estate Values and Ecosystem Services: Correlation Levels. Blockchain Technology and Innovations in Business Processes. 2020; ():802-810.

Chicago/Turabian Style

Antonio Nesticò; Francesco Sica; Theodore Endreny. 2020. "Real Estate Values and Ecosystem Services: Correlation Levels." Blockchain Technology and Innovations in Business Processes , no. : 802-810.

Journal article
Published: 11 June 2020 in Water
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To assist river restoration efforts we need to slow the rate of river degradation. This study provides a detailed explanation of the hydraulic complexity loss when a meandering river is straightened in order to motivate the protection of river channel curvature. We used computational fluid dynamics (CFD) modeling to document the difference in flow dynamics in nine simulations with channel curvature (C) degrading from a well-established tight meander bend (C = 0.77) to a straight channel without curvature (C = 0). To control for covariates and slow the rate of loss to hydraulic complexity, each of the nine-channel realizations had equivalent bedform topography. The analyzed hydraulic variables included the flow surface elevation, streamwise and transverse unit discharge, flow velocity at streamwise, transverse, and vertical directions, bed shear stress, stream function, and the vertical hyporheic flux rates at the channel bed. The loss of hydraulic complexity occurred gradually when initially straightening the channel from C = 0.77 to C = 0.33 (i.e., the radius of the channel is three-times the channel width), and additional straightening incurred rapid losses to hydraulic complexity. Other studies have shown hydraulic complexity provides important riverine habitat and is positively correlated with biodiversity. This study demonstrates how hydraulic complexity can be gradually and then rapidly lost when unwinding a river, and hopefully will serve as a cautionary tale.

ACS Style

Tian Zhou; Theodore Endreny. The Straightening of a River Meander Leads to Extensive Losses in Flow Complexity and Ecosystem Services. Water 2020, 12, 1680 .

AMA Style

Tian Zhou, Theodore Endreny. The Straightening of a River Meander Leads to Extensive Losses in Flow Complexity and Ecosystem Services. Water. 2020; 12 (6):1680.

Chicago/Turabian Style

Tian Zhou; Theodore Endreny. 2020. "The Straightening of a River Meander Leads to Extensive Losses in Flow Complexity and Ecosystem Services." Water 12, no. 6: 1680.

Original research article
Published: 15 May 2020 in Frontiers in Sustainable Cities
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Obtaining accurate tree cover maps within cities is a first step toward managing for equitable access to their ecosystem services. For example, by removing air pollutants trees contribute to fewer health impacts, and tree cover expansion could extend these benefits by targeting the most polluted areas and vulnerable populations. To support strategic tree expansion, this research created urban tree cover maps using the 2017 NASA MOD44B satellite 250 m pixel product for 35 megacities, areas with large levels of pollution and vulnerable populations. Estimates of tree cover from photo-interpretation (PI) were used to characterize map error, city-wide, and from low to high tree cover, using 21 bins from 0 to 100% tree cover. Map accuracy was highest when MOD44B percent tree cover was combined with its tree cover standard deviation product, with average difference of 1.8% compared with PI estimates of 19.9% city-wide tree cover. MOD44B estimates of tree cover spatial patterns had strong explanatory value. The maps explained the PI estimates of low to high tree cover at 5% tree cover intervals with an R2 = 0.97. The Getis Ord Gi* statistic determined a non-random spatial distribution of tree cover within the megacities, with significant clustering into hot spots of relatively high tree cover and cold spots of relatively low tree cover. Tree cover hot spots were most often furthest from downtown, at the rural-urban interface or within higher elevation terrain. Tree cover cold spots were most often in areas of concentrated development and along traffic corridors known for high levels of particulate matter and other air pollutants that could be reduced by trees. Given small increases in exposure to particulate matter are associated with significant increases in death rates from viruses, and that climate change and associated heat waves are forecast to exacerbate health risks to air pollution, we need to improve global urban tree cover. These map products can be used to expand tree cover that strategically contributes to pollutant abatement, human well-being, and sustainable cities.

ACS Style

Theodore Endreny; Francesco Sica; David Nowak. Tree Cover Is Unevenly Distributed Across Cities Globally, With Lowest Levels Near Highway Pollution Sources. Frontiers in Sustainable Cities 2020, 2, 1 .

AMA Style

Theodore Endreny, Francesco Sica, David Nowak. Tree Cover Is Unevenly Distributed Across Cities Globally, With Lowest Levels Near Highway Pollution Sources. Frontiers in Sustainable Cities. 2020; 2 ():1.

Chicago/Turabian Style

Theodore Endreny; Francesco Sica; David Nowak. 2020. "Tree Cover Is Unevenly Distributed Across Cities Globally, With Lowest Levels Near Highway Pollution Sources." Frontiers in Sustainable Cities 2, no. : 1.

Short communication
Published: 27 March 2020 in Journal of Cleaner Production
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Urban areas can modify their green infrastructure to include microbial fuel cells and generate electricity to help address energy security. Naturally occurring electroactive bacteria utilize plant compounds and organic pollutants as electron donors. Water is cleaned, electricity is generated, and additional ecological services are provided.

ACS Style

Theodore Endreny; Claudio Avignone-Rossa; Rosa Anna Nastro. Generating electricity with urban green infrastructure microbial fuel cells. Journal of Cleaner Production 2020, 263, 121337 .

AMA Style

Theodore Endreny, Claudio Avignone-Rossa, Rosa Anna Nastro. Generating electricity with urban green infrastructure microbial fuel cells. Journal of Cleaner Production. 2020; 263 ():121337.

Chicago/Turabian Style

Theodore Endreny; Claudio Avignone-Rossa; Rosa Anna Nastro. 2020. "Generating electricity with urban green infrastructure microbial fuel cells." Journal of Cleaner Production 263, no. : 121337.

Journal article
Published: 28 February 2020 in Water
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Confluences are nodes in riverine networks characterized by complex three-dimensional changes in flow hydrodynamics and riverbed morphology, and are valued for important ecological functions. This physical complexity is often investigated within the water column or riverbed, while few studies have focused on hyporheic fluxes, which is the mixing of surface water and groundwater across the riverbed. This study aims to understand how hyporheic flux across the riverbed is organized by confluence physical drivers. Field investigations were carried out at a low gradient, headwater confluence between Baltimore Brook and Cold Brook in Marcellus, New York, USA. The study measured channel bathymetry, hydraulic permeability, and vertical temperature profiles, as indicators of the hyporheic exchange due to temperature gradients. Confluence geometry, hydrodynamics, and morphodynamics were found to significantly affect hyporheic exchange rate and patterns. Local scale bed morphology, such as the confluence scour hole and minor topographic irregularities, influenced the distribution of bed pressure head and the related patterns of downwelling/upwelling. Furthermore, classical back-to-back bend planform and the related secondary circulation probably affected hyporheic exchange patterns around the confluence shear layer. Finally, even variations in the hydrological conditions played a role on hyporheic fluxes modifying confluence planform, and, in turn, flow circulation patterns.

ACS Style

Ivo Martone; Carlo Gualtieri; Theodore Endreny. Characterization of Hyporheic Exchange Drivers and Patterns within a Low-Gradient, First-Order, River Confluence during Low and High Flow. Water 2020, 12, 649 .

AMA Style

Ivo Martone, Carlo Gualtieri, Theodore Endreny. Characterization of Hyporheic Exchange Drivers and Patterns within a Low-Gradient, First-Order, River Confluence during Low and High Flow. Water. 2020; 12 (3):649.

Chicago/Turabian Style

Ivo Martone; Carlo Gualtieri; Theodore Endreny. 2020. "Characterization of Hyporheic Exchange Drivers and Patterns within a Low-Gradient, First-Order, River Confluence during Low and High Flow." Water 12, no. 3: 649.

Micro article
Published: 20 February 2020 in MethodsX
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This method paper explains the i-Tree Cool River model algorithms for simulating the response of river water temperature to urban greening. The model captures the warming and cooling impacts of urban development and restoration through a water and energy budget. The water budget includes river inflows from urban storm sewers and reservoirs, and the associated water temperatures. The energy budget adjusts radiation fluxes due to riparian shading and evapotranspiration, and propagates temperature downstream. Restorative cooling of the river can be simulated through algorithms for cool groundwater, either as direct inflows or by river water replacement called hyporheic exchange. Novel features in the model include diurnal variation in riparian shading, use of the Army Corps of Engineers HEC-RAS model predicted river depths and velocities, and periodic boundary conditions to rapidly extend restoration scenarios.

ACS Style

Reza Abdi; Theodore Endreny; David Nowak. i-Tree cool river: An open source, freeware tool to simulate river water temperature coupled with HEC-RAS. MethodsX 2020, 7, 100808 .

AMA Style

Reza Abdi, Theodore Endreny, David Nowak. i-Tree cool river: An open source, freeware tool to simulate river water temperature coupled with HEC-RAS. MethodsX. 2020; 7 ():100808.

Chicago/Turabian Style

Reza Abdi; Theodore Endreny; David Nowak. 2020. "i-Tree cool river: An open source, freeware tool to simulate river water temperature coupled with HEC-RAS." MethodsX 7, no. : 100808.

Chapter
Published: 06 February 2020 in Mediterranean-Type Ecosystems
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Urban trees provide numerous benefits to society, as well as costs. One of the more important benefits of urban trees relates to their impact on surface stormwater runoff. Hydrologic models can serve to optimize land use planning and facilitate the inclusion of more tree cover for its hydrologic ecosystem services. Varying modeling methods and levels of simplifying assumptions offer a range of capabilities and ease of use. This chapter summarizes the state of the art for urban forest hydrology modeling as of 2018 and discusses eight models of interest which are free to use, useful to the broad stormwater management community, and capable of simulating forest effects on hydrology. Models discussed include i-Tree Hydro, the Rational method, Curve Number approaches, US EPA SWC, US EPA SWMM, HSPF, SWAT, and RHESSys. Future directions for hydrologic modeling of urban tree-water interactions is also discussed, highlighting the need for increased cross-pollination between different models and improved features to better utilize the latest technologies and meet the needs of the stormwater management and urban forestry communities.

ACS Style

Robert Coville; Theodore Endreny; David J. Nowak. Modeling the Impact of Urban Trees on Hydrology. Mediterranean-Type Ecosystems 2020, 459 -487.

AMA Style

Robert Coville, Theodore Endreny, David J. Nowak. Modeling the Impact of Urban Trees on Hydrology. Mediterranean-Type Ecosystems. 2020; ():459-487.

Chicago/Turabian Style

Robert Coville; Theodore Endreny; David J. Nowak. 2020. "Modeling the Impact of Urban Trees on Hydrology." Mediterranean-Type Ecosystems , no. : 459-487.

Journal article
Published: 05 February 2020 in Water
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Hyporheic zones (HZs) influence biogeochemistry at the local reach scale with potential implication for water quality at the large catchment scale. The characteristics of the HZs (e.g., area, flux rates, and residence times) change in response to channel and aquifer physical properties, as well as to transient perturbations in the stream–aquifer system such as floods and groundwater withdraws due to evapotranspiration (ET) and pumping. In this study, we use a numerical model to evaluate the effects of transient near-stream evapotranspiration (ET) on the area, exchange flux, and residence time (RT) of sinuosity-induced HZs modulated by regional groundwater flow (RGF). We found that the ET fluxes (up to 80 mm/day) consistently increased HZ area and exchange flux, and only increased RTs when the intensity of regional groundwater flow was low. Relative to simulations without ET, scenarios with active ET had more than double HZ area and exchange flux and about 20% longer residence times (as measured by the median of the residence time distribution). Our model simulations show that the drawdown induced by riparian ET increases the net flux of water from the stream to the nearby aquifer, consistent with field observations. The results also suggest that, along with ET intensity, the magnitude of the HZ response is influenced by the modulating effect of both gaining and losing RGF and the sensitivity of the aquifer to daily cycles of ET withdrawal. This work highlights the importance of representing near-stream ET when modeling sinuosity-induced hyporheic zones, as well as the importance of including riparian vegetation in efforts to restore the ecosystem functions of streams.

ACS Style

James Kruegler; Jesus Gomez-Velez; Laura K. Lautz; Theodore A. Endreny. Dynamic Evapotranspiration Alters Hyporheic Flow and Residence Times in the Intrameander Zone. Water 2020, 12, 424 .

AMA Style

James Kruegler, Jesus Gomez-Velez, Laura K. Lautz, Theodore A. Endreny. Dynamic Evapotranspiration Alters Hyporheic Flow and Residence Times in the Intrameander Zone. Water. 2020; 12 (2):424.

Chicago/Turabian Style

James Kruegler; Jesus Gomez-Velez; Laura K. Lautz; Theodore A. Endreny. 2020. "Dynamic Evapotranspiration Alters Hyporheic Flow and Residence Times in the Intrameander Zone." Water 12, no. 2: 424.

Journal article
Published: 06 January 2020 in Journal of Environmental Management
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River water quality and habitats are degraded by thermal pollution from urban areas caused by warm surface runoff, lack of riparian forests, and impervious channels that transfer heat and block cool subsurface flows. This study updates the i-Tree Cool River model to simulate restoration of these processes to reverse the urban river syndrome, while using the HEC-RAS model water surface profiles needed for flood hazard analysis in restoration planning. The new model was tested in a mountain river within the New York City drinking water supply area (Sawmill, SM, Creek), and then used for base case and restoration scenarios on the 17.5 km reach of the Los Angeles (LA) River where a multi-million dollar riverine restoration project is planned. The model simulated the LA River average temperature in the base case decreased from 29.5 °C by 0.3 °C when warm surface inflows were converted to cooler groundwater inflows by terrestrial green infrastructure; by 0.7 °C when subsurface hyporheic exchange was increased by removal of armoring and installation of riffle-pool bedforms; by 3.6 °C when riparian forests shaded the river; and by 6.4 °C when floodplain forests were added to riparian forests to cool surface reservoirs and local air temperatures. Applying all four restoration treatments lowered river temperature by 7.2 °C. The simulated decreases in river temperature lead to increased saturated dissolved oxygen levels, reaching 8.7 mg/L, up from the 7.6 mg/L in the base case scenario, providing improved fish habitat and reducing eutrophication and hypoxic zones. This study evaluating the performance of environmental management scenarios could help managers control the thermal pollution in rivers.

ACS Style

Reza Abdi; Theodore Endreny; David Nowak. A model to integrate urban river thermal cooling in river restoration. Journal of Environmental Management 2020, 258, 110023 .

AMA Style

Reza Abdi, Theodore Endreny, David Nowak. A model to integrate urban river thermal cooling in river restoration. Journal of Environmental Management. 2020; 258 ():110023.

Chicago/Turabian Style

Reza Abdi; Theodore Endreny; David Nowak. 2020. "A model to integrate urban river thermal cooling in river restoration." Journal of Environmental Management 258, no. : 110023.

Chapter
Published: 02 January 2020 in Precipitation Partitioning by Vegetation
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Trees impact surface stormwater runoff, soil moisture, streamflow, water quality, and air temperatures by intercepting precipitation (rain and snow), enhancing soil water infiltration, shading surfaces, and evapotranspiring water. These impacts affect human health and well-being. Many of these tree impacts remain to be more accurately quantified and valued, particularly related to water quality aspects such as mass (e.g., sediments), chemical (e.g., nutrients, metals, pesticides), biological (e.g., pathogens, microbes), and thermal loads. Urban trees can help mitigate many of the negative hydrologic effects created by the relatively large amount of impervious surfaces in cities. Urban tree impacts are generally positive but can create negative outcomes if improperly managed (e.g., leaves or branches clogging drains or streams). Although more and better valuation of tree impacts is needed, studies to date value tree effects on reducing runoff into water bodies in the range of millions of dollars per year at the city or watershed scale.

ACS Style

David J. Nowak; Robert Coville; Theodore Endreny; Reza Abdi; John T. Van Stan Ii. Valuing Urban Tree Impacts on Precipitation Partitioning. Precipitation Partitioning by Vegetation 2020, 253 -268.

AMA Style

David J. Nowak, Robert Coville, Theodore Endreny, Reza Abdi, John T. Van Stan Ii. Valuing Urban Tree Impacts on Precipitation Partitioning. Precipitation Partitioning by Vegetation. 2020; ():253-268.

Chicago/Turabian Style

David J. Nowak; Robert Coville; Theodore Endreny; Reza Abdi; John T. Van Stan Ii. 2020. "Valuing Urban Tree Impacts on Precipitation Partitioning." Precipitation Partitioning by Vegetation , no. : 253-268.

Research article
Published: 26 October 2019 in Ecohydrology
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Confluences are integral features in rivers characterized by complex 3D changes in flow hydrodynamics and bed morphology and provide important ecological functions. This paper presents the first known analysis of 3D spatial habitat metrics, based on hydraulic complexity, using data from the Negro and Solimões rivers confluence in the Amazon Basin, during high and low flow conditions. The analysis was conducted using two bioenergetics metrics M2 and M3 computed for ~1m square cells within each cross section. M2 is related to the drag force on a fish moving between two locations in the river, while M3 is related to the energy needed by a fish to remain in a location without spinning. M2 provides useful spatial analysis of the confluence, and its longitudinal distribution as well as its uniformity parameters in the river cross‐sections showed a peak downstream the junction and a rapid decay in the central confluence hydrodynamic zone. This trend corresponded with the classic hydrodynamic features as well as with literature observed patterns of biotic assemblages downstream of river confluences. At the entrance of the Amazon channel, M2 peaks corresponded to the largest concentration of fish larvae demonstrating that the metric could be used to identify hot spots for aquatic species richness. The 3D derived M2 values were larger in magnitude than M2 values derived from depth‐averaged velocity data. The longitudinal distribution of M3 metric peaked immediately downstream of the confluence, and the M3 helical flow cells corresponded with areas where dolphins congregate to feed, and could exert less energy to remain in this zone. . The study demonstrated that a 3D analysis of velocity gradients is able to reveal and explain observed patterns of species abundance and richness beyond those captured by a 2D analysis.

ACS Style

Carlo Gualtieri; Reza Abdi; Marco Ianniruberto; Naziano Filizola; Theodore A. Endreny. A 3D analysis of spatial habitat metrics about the confluence of Negro and Solimões rivers, Brazil. Ecohydrology 2019, 13, 1 .

AMA Style

Carlo Gualtieri, Reza Abdi, Marco Ianniruberto, Naziano Filizola, Theodore A. Endreny. A 3D analysis of spatial habitat metrics about the confluence of Negro and Solimões rivers, Brazil. Ecohydrology. 2019; 13 (1):1.

Chicago/Turabian Style

Carlo Gualtieri; Reza Abdi; Marco Ianniruberto; Naziano Filizola; Theodore A. Endreny. 2019. "A 3D analysis of spatial habitat metrics about the confluence of Negro and Solimões rivers, Brazil." Ecohydrology 13, no. 1: 1.

Journal article
Published: 22 May 2019 in Water
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Thermal pollution of rivers degrades water quality and ecosystem health, and cities can protect rivers by decreasing warmer impervious surface stormwater inflows and increasing cooler subsurface inflows and shading from riparian vegetation. This study develops the mechanistic i-Tree Cool River Model and tests if it can be used to identify likely causes and mitigation of thermal pollution. The model represents the impacts of external loads including solar radiation in the absence of riparian shade, multiple lateral storm sewer inflows, tributaries draining reservoirs, groundwater flow, and hyporheic exchange flow in dry weather steady flows and wet weather unsteady flows. The i-Tree Cool River Model estimates the shading effects of the riparian vegetation and other features as a function of heights and distances as well as solar geometry. The model was tested along 1500 m of a New York mountain river with a riparian forest and urban areas during 30 h with two summer storm events in 2007. The simulations were sensitive to the inflows of storm sewers, subsurface inflows, as well as riparian shading, and upstream boundary temperature inflows for steady and unsteady conditions. The model simulated hourly river temperature with an R2 of 0.98; when shading was removed from the simulation the R2 decreased 0.88, indicating the importance of riparian shading in river thermal modeling. When stormwater inflows were removed from the simulation, the R2 decreased from 0.98 to 0.92, and when subsurface inflows were removed, the R2 decreased to 0.94. The simulation of thermal loading is important to manage against pollution of rivers.

ACS Style

Reza Abdi; Theodore Endreny. A River Temperature Model to Assist Managers in Identifying Thermal Pollution Causes and Solutions. Water 2019, 11, 1060 .

AMA Style

Reza Abdi, Theodore Endreny. A River Temperature Model to Assist Managers in Identifying Thermal Pollution Causes and Solutions. Water. 2019; 11 (5):1060.

Chicago/Turabian Style

Reza Abdi; Theodore Endreny. 2019. "A River Temperature Model to Assist Managers in Identifying Thermal Pollution Causes and Solutions." Water 11, no. 5: 1060.

Preface
Published: 25 October 2018 in Hydrological Processes
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ACS Style

Theodore A. Endreny; Leonardo V. Noto; Annette Semadeni-Davies. Preface to theHydrological processes in urban environments: Updates on urbanization, naturalization and climate changeSpecial Issue. Hydrological Processes 2018, 32, 3572 -3575.

AMA Style

Theodore A. Endreny, Leonardo V. Noto, Annette Semadeni-Davies. Preface to theHydrological processes in urban environments: Updates on urbanization, naturalization and climate changeSpecial Issue. Hydrological Processes. 2018; 32 (24):3572-3575.

Chicago/Turabian Style

Theodore A. Endreny; Leonardo V. Noto; Annette Semadeni-Davies. 2018. "Preface to theHydrological processes in urban environments: Updates on urbanization, naturalization and climate changeSpecial Issue." Hydrological Processes 32, no. 24: 3572-3575.

Journal article
Published: 12 June 2018 in Journal of Geophysical Research: Atmospheres
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Atmospheric Rivers (ARs) are concentrated bands of water vapor that can cause extreme precipitation and severe flooding. Fortunately, due to their 1500+ km spatial extent they may also be forecasted days in advance. The goals of this study were to investigate the seasonal climatology of ARs in the Himalayan region of Nepal and to determine the role of ARs in extreme precipitation events. Using the ERA‐Interim atmospheric reanalysis, we applied a standard Integrated Vapor Transport (IVT) AR detection approach for the 35‐year period from 1979‐2013. We detected 433 ARs, or approximately 12 ARs yearly. Along our six (0.75°) grid detection transect, ARs explain 35% of grid annual maximum daily precipitation (AM) events and 70% of grid non‐monsoon (October‐May) maximum daily precipitation (NM) events. In 89% and 71% of years, at least one of the six detection grids experienced an AR‐related NM or AM event, respectively. Overall, ARs explain 78% of daily precipitation totals exceeding 33 mm in the non‐monsoon season in comparison to 18% if the entire year is considered. As we show, ARs constitute a valuable new lens through which extreme precipitation in the region may be understood and forecasted. However, follow‐on IVT analyses that more closely investigate the interaction between ARs and their synoptic scale environment are needed to better differentiate January and February ARs from Western Disturbances and June‐September ARs from the Indian monsoon.

ACS Style

Kritika Thapa; Theodore A. Endreny; Craig R. Ferguson. Atmospheric Rivers Carry Nonmonsoon Extreme Precipitation Into Nepal. Journal of Geophysical Research: Atmospheres 2018, 123, 5901 -5912.

AMA Style

Kritika Thapa, Theodore A. Endreny, Craig R. Ferguson. Atmospheric Rivers Carry Nonmonsoon Extreme Precipitation Into Nepal. Journal of Geophysical Research: Atmospheres. 2018; 123 (11):5901-5912.

Chicago/Turabian Style

Kritika Thapa; Theodore A. Endreny; Craig R. Ferguson. 2018. "Atmospheric Rivers Carry Nonmonsoon Extreme Precipitation Into Nepal." Journal of Geophysical Research: Atmospheres 123, no. 11: 5901-5912.

Comment
Published: 21 March 2018 in Nature Communications
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Growth in urban populations creates opportunities for urban forests to deliver ecosystem services critical to human wellbeing and biodiversity. Our challenge is to strategically expand urban forests and provide our international communities, particularly the vulnerable, with healthier, happier, and enriched lives.

ACS Style

Theodore A. Endreny. Strategically growing the urban forest will improve our world. Nature Communications 2018, 9, 1 -3.

AMA Style

Theodore A. Endreny. Strategically growing the urban forest will improve our world. Nature Communications. 2018; 9 (1):1-3.

Chicago/Turabian Style

Theodore A. Endreny. 2018. "Strategically growing the urban forest will improve our world." Nature Communications 9, no. 1: 1-3.

Journal article
Published: 01 September 2017 in Ecological Modelling
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Theodore Endreny; Remo Santagata; A. Perna; C. De Stefano; R.F. Rallo; Sergio Ulgiati. Implementing and managing urban forests: A much needed conservation strategy to increase ecosystem services and urban wellbeing. Ecological Modelling 2017, 360, 328 -335.

AMA Style

Theodore Endreny, Remo Santagata, A. Perna, C. De Stefano, R.F. Rallo, Sergio Ulgiati. Implementing and managing urban forests: A much needed conservation strategy to increase ecosystem services and urban wellbeing. Ecological Modelling. 2017; 360 ():328-335.

Chicago/Turabian Style

Theodore Endreny; Remo Santagata; A. Perna; C. De Stefano; R.F. Rallo; Sergio Ulgiati. 2017. "Implementing and managing urban forests: A much needed conservation strategy to increase ecosystem services and urban wellbeing." Ecological Modelling 360, no. : 328-335.

Journal article
Published: 11 July 2017 in Water
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Background: The hierarchical use of remotely-sensed imagery from satellites, and then proximally-sensed imagery from helicopter sand drones, can provide a range of spatial and temporal coverage that supports water quality monitoring of complex pollution scenarios. Methods: The study used hierarchical satellite-, helicopter-, and drone-acquired thermal imagery of coastal plumes ranging from 3 to 300 m, near Naples, Italy, and captured temporally- and spatially-overlapping in situ samples to correlate thermal and water quality parameters in each plume and the seawater. Results: In situ sampling determined that between-plume salinity varied by 37%, chlorophyll-a varied by 356%, dissolved oxygen varied by 81%, and turbidity varied by 232%. The radiometric temperature, Trad, for the plume area of interest had a correlation of 0.81 with salinity, 0.74 with chlorophyll-a, 0.98 with dissolved oxygen, and −0.61 with turbidity. Conclusion: This study established hierarchical use of remote and proximal thermal imagery can provide monitoring of complex coastal areas.

ACS Style

Claudia Ferrara; Massimiliano Lega; Giannetta Fusco; Paul Bishop; Theodore Endreny. Characterization of Terrestrial Discharges into Coastal Waters with Thermal Imagery from a Hierarchical Monitoring Program. Water 2017, 9, 500 .

AMA Style

Claudia Ferrara, Massimiliano Lega, Giannetta Fusco, Paul Bishop, Theodore Endreny. Characterization of Terrestrial Discharges into Coastal Waters with Thermal Imagery from a Hierarchical Monitoring Program. Water. 2017; 9 (7):500.

Chicago/Turabian Style

Claudia Ferrara; Massimiliano Lega; Giannetta Fusco; Paul Bishop; Theodore Endreny. 2017. "Characterization of Terrestrial Discharges into Coastal Waters with Thermal Imagery from a Hierarchical Monitoring Program." Water 9, no. 7: 500.