The Road to <scp>NHDP</scp>lus — Advancements in Digital Stream Networks and Associated Catchments

Moore, Richard B.; Dewald, Thomas G.

doi:10.1111/1752-1688.12389

Cited by 87 publications

(75 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Water flow paths, incremental reaches, and catchments were defined by streams and water bodies in the 1:100,000‐scale National Hydrography Dataset Plus Version 2.0 (Moore and Dewald ) for the U.S. and a modified version of the Ontario Integrated Hydrology Data Enhanced Watercourse dataset developed by the Ontario Ministry of Natural Resources and Forestry () for Canada (Vouk et al ). Additional reservoir information was included from the U.S. Army Corps of Engineers National Inventory of Dams dataset for the U.S. (USACE ) and CanVec dataset (Centre for Topographic Information ) for Canada.…”

Section: Methodsmentioning

confidence: 99%

Phosphorus and Nitrogen Transport in the Binational Great Lakes Basin Estimated Using SPARROW Watershed Models

Robertson

Saad

Benoy

et al. 2019

J American Water Resour Assoc

View full text Add to dashboard Cite

Eutrophication problems in the Great Lakes are caused by excessive nutrient inputs (primarily phosphorus, P, and nitrogen, N) from various sources throughout its basin. In developing protection and restoration plans, it is important to know where and from what sources the nutrients originate. As part of a binational effort, Midcontinent SPARROW (SPAtially Referenced Regression On Watershed attributes) models were developed and used to estimate P and N loading from throughout the entire basin based on nutrient inputs similar to 2002; previous SPARROW models only estimated U.S. contributions. The new models have a higher resolution (~2‐km2 catchments) enabling improved descriptions of where nutrients originate and the sources at various spatial scales. The models were developed using harmonized geospatial datasets describing the stream network, nutrient sources, and environmental characteristics affecting P and N delivery. The models were calibrated using loads from sites estimated with ratio estimator and regression techniques and additional statistical approaches to reduce spatial correlation in the residuals and have all monitoring sites equally influence model development. SPARROW results, along with interlake transfers and direct atmospheric inputs, were used to quantify the entire P and N input to each lake and describe the importance of each nutrient source. Model results can be used to compare loading and yields from various tributaries and jurisdictions.

show abstract

Section: Methodsmentioning

confidence: 99%

Phosphorus and Nitrogen Transport in the Binational Great Lakes Basin Estimated Using SPARROW Watershed Models

Robertson

Saad

Benoy

et al. 2019

J American Water Resour Assoc

View full text Add to dashboard Cite

show abstract

“…Each step of the construction process was written in a Jupyter notebook (Perez & Granger, ). The backbone of model construction is the NHDPlus (Moore & Dewald, ), which covers the conterminous U.S. and contains land‐surface attitude and the location and altitudes of stream reaches. Other digital data used include Fullerton and Richmond (1983–2007) (extent and type of glacial deposits); Soller and Garrity () (altitude of bedrock); and Trost () (recharge).…”

Section: Approachmentioning

confidence: 99%

Regionalization of Groundwater Residence Time Using Metamodeling

Starn

Belitz

2018

Water Resources Research

View full text Add to dashboard Cite

Groundwater residence‐time distributions (RTDs) are critical for assessing susceptibility of water resources to degradation. A novel combination of numerical modeling and statistical methods allows estimation of regional RTDs with unprecedented speed. In this method, particle RTDs are generated in 30 type locales in the northeastern glaciated U.S. by using automated generalized finite‐difference groundwater flow and advective transport models. Targets for statistical learning were created from particle RTDs by fitting Weibull, gamma, and inverse Gaussian distributions. Whole‐basin flux‐weighted RTDs were well fit by one‐component Weibull distributions. Flux‐weighted RTDs at stressed receptors such as wells often produced more complicated RTDs that required a two‐component mixture to fit. A Multitask LASSO regression was trained on the parametric RTDs using hydrogeographic features of the modeled areas as explanatory features. In this way, RTDs are regionalized with mappable physical features such as recharge and aquifer volume. The shape, location, and scale parameters of the parametric RTDs are strongly related to the mean exponential age. The shape parameter of the distribution, which controls deviation from exponential, is additionally a function of aquifer heterogeneity and hydrologic features. Regionalized RTDs provide useful metrics with respect to groundwater lag times and solute loading to streams. The lag time between input and output contained in the RTD is critical to understanding the relation between the land surface and human and ecological receptors.

show abstract

“…The National Hydrography Dataset Plus Version 2 (NHDPlusV2) integrates features from the Medium Resolution (1:100K) National Hydrography Dataset (NHD), National Elevation Dataset (NED), and Watershed Boundary Dataset (WBD) to produce digital stream networks (flow lines) for the contiguous United States (http://www.hori zon-systems.com/nhdplus; McKay et al 2012, Moore andDewald 2016). In essence, this dataset creates a suitable spatial framework to assess macroscale processes in aquatic ecology.…”

Section: Stream Networkmentioning

confidence: 99%

Stream network geometry and the spatial influence of aquatic insect subsidies across the contiguous United States

Kopp

Allen

2019

Ecosphere

View full text Add to dashboard Cite

Emergent aquatic insects transport aquatic-derived resources into terrestrial ecosystems but are rarely studied at landscape or regional scales. Here, we investigate how stream network geometry constrains the spatial influence of aquatic insect subsidies in terrestrial ecosystems. We also explore potential factors (i.e., climate, topography, soils, and vegetation) that could produce variation in stream network geometry and thus change the extent of aquatic insect subsidies from one region to another. The stream signature is the percentage of aquatic insect subsidies traveling a given distance into the terrestrial ecosystem, relative to what comes out of the stream. We use this concept to model the spatial extent (area) and distribution (spatial patterning) of aquatic subsidies in terrestrial ecosystems across the contiguous United States. Our findings suggest that at least 8% of the subsidies measured at the aquatic-terrestrial boundary (i.e., the 8% stream signature) are typically transferred throughout the entire watershed and that variation in this spatial extent is largely influenced by the drainage density of the stream network. Moreover, we found stream signatures from individual stream reaches overlap such that the spatial extent of the 8% stream signature often includes inputs from multiple stream reaches. Landscapescale stream network characteristics increased the area of overlapping stream signatures more than reach-scale channel properties. Finally, we found runoff was an important factor influencing stream network geometry suggesting a potential effect of climate on aquatic-to-terrestrial linkages that have been understudied.

show abstract

The Road to NHDPlus — Advancements in Digital Stream Networks and Associated Catchments

Cited by 87 publications

References 17 publications

Phosphorus and Nitrogen Transport in the Binational Great Lakes Basin Estimated Using SPARROW Watershed Models

Phosphorus and Nitrogen Transport in the Binational Great Lakes Basin Estimated Using SPARROW Watershed Models

Regionalization of Groundwater Residence Time Using Metamodeling

Stream network geometry and the spatial influence of aquatic insect subsidies across the contiguous United States

Contact Info

Product

Resources

About