NHDPlus High Resolution (NHDPlus HR)---A hydrography framework for the Nation

Buto, Susan G.; Anderson, Rebecca D.

doi:10.3133/fs20203033

Cited by 25 publications

(23 citation statements)

References 1 publication

(1 reference statement)

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“…The CRW is discretized into 98,254 reaches according to the NHD Plus High Resolution (HR) data set (Buto & Anderson, 2020; Moore et al., 2019). For the purposes of this analysis, which is focused on riverine photomineralization only, any reaches identified in NHD Plus HR as a lentic water body (i.e., a lake, pond, or reservoir) determined based on whether they had a nonzero lentic water body surface area attribute value (“WB_AreaSqKm”) were excluded (i.e., we assume that anything classified as having a lentic water body area of zero, or left empty, was a lotic reach).…”

Section: Methodsmentioning

confidence: 99%

Does Photomineralization of Dissolved Organics Matter in Temperate Rivers?

et al. 2021

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Dissolved organic matter (DOM) is one of the largest fluxes of carbon in inland water ecosystems and a central component of riverine metabolism. DOM, which is approximately 50% dissolved organic carbon (DOC) by mass (Dittmar & Stubbins, 2014;Krogh, 1934), is a nutrient and energy source, capable of transporting metals and pollutants, and a driver of light availability in water bodies (Kaplan & Cory, 2016;Schlesinger & Melack, 1981). Large amounts of riverine DOC enter the ocean annually, where it is an important source of reduced carbon (Raymond & Spencer, 2015). Although the amount of DOC entering the ocean is relatively well known, its representative chemical composition, reactivity, and the seasonality of its input are not as

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Section: Methodsmentioning

confidence: 99%

Does Photomineralization of Dissolved Organics Matter in Temperate Rivers?

et al. 2021

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“…Since none of these previous products had delineated headwater streams at high spatial precision, we used the NHDPlus HR vector dataset as a reference to compare the accuracy of our newly-delineated stream channels. The NHDPlus HR was at 1:24,000 scale, 3D Elevation Program data at 10 m spatial resolution, and the nationally complete Watershed Boundary Dataset (Buto and Anderson, 2020). We likewise rasterised the NHDPlus HR vector lines to a 3x3 arc-sec grid cell resolution 305 to allow for a direct comparison.…”

Section: Spatial Accuracy Of the Streamsmentioning

confidence: 99%

“…Figure 9. Visualisation of the different global hydrographic datasets (Hydrography90m, MERIT Hydro-Vector, HydroRIVERS, GRWL)against the high-resolution NHDPlus HR reference dataset of the United States(Buto and Anderson, 2020). The geographic location of the four panels a-d corresponds to the labels in the map.…”

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confidence: 99%

Hydrography90m: A new high-resolution global hydrographic dataset

Amatulli

Márquez

Sethi³

et al. 2022

Preprint

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Abstract. The geographic distribution of streams and rivers drives a multitude of patterns and processes in hy-drology, geomorphology, geography and ecology. Therefore, a hydrographic network that accurately delineatesboth small streams and large rivers with equal precision, along with their topographic and topological proper-ties, would be indispensable in the earth sciences. However, no such hydrographic study has been publishedto date. Perhaps equally critical is the absence of small headwater streams in global hydrographies, as theseare estimated to contribute to more than 70 % of overall stream length. We aimed to fill this gap by using theMERIT Hydro Digital Elevation Model at 3 arc-sec (∼90 m at the equator) to derive a globally seamless, stan-dardised hydrographic network, the "Hydrography90m", with corresponding stream topographic and topologicalinformation. A central feature of the network is the minimal upstream contributing area, i.e. flow accumulation,of 0.05 km2 (or 5 ha) to initiate a stream channel, which allowed us to extract headwater stream channels ingreat detail. By employing a suite of GRASS GIS hydrological modules, we calculated the range-wide upstreamflow accumulation and flow direction to delineate a total of 1.6 million drainage basins, and extracted globallya total of 726 million unique stream segments with their corresponding sub-catchments. In addition, we com-puted stream topographic variables comprising stream slope, gradient, length, and curvature attributes, as wellas stream topological variables to allow for network routing and various stream order classifications. We vali-dated the spatial accuracy and flow accumulation of Hydrography90m against NHDPlus HR, an independent,national high-resolution hydrographic network dataset of the United States. Our validation shows that the newlydeveloped Hydrography90m has the highest spatial precision, and contains more headwater stream channelscompared to three other global hydrographic datasets. This inclusive approach provides a vital, and long-overduebaseline for assessing actual streamflow in headwaters, and opens new research avenues for high-resolution stud-ies of surface water worldwide. Hydrography90m thus offers significant potential to facilitate the assessment offreshwater quantity and quality, inundation risk, biodiversity and conservation, as well as resource managementobjectives in a globally comprehensive and standardised manner. We provide all the computed layers for visual-isation and download in 20° × 20° tiles at https://public.igb-berlin.de/index.php/s/od7neyLcYgi5qRp. While the entire dataset can be used directly in standard GIS applications, we recommend its seamless integration with hydrological modules in open-source QGIS and GRASS GIS software to further customise the data and derive optimal utility from it.

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“…To capture additional resistance features, we also included the presence of primary and secondary roads (U.S. Census Bureau, 2019) and rivers (Buto & Anderson, 2020; United States Geological Survey (USGS), 2020) in our resistance layers, giving both a value of 1 (highest resistance) (Cypher et al, 2013;Koen et al, 2014;B. McRae et al, 2016).…”

Section: Resistance Layersmentioning

confidence: 99%

Implications of Climate-Driven Fallowing for Ecological Connectivity of Species At Risk

McComb

Powers

Melton

et al. 2021

Preprint

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Context. Climate change and agricultural intensification are modifying the configuration of natural lands within agricultural landscapes, further impacting species’ ability to move freely between remaining natural areas. These working landscapes have inherently high opportunity costs, making the establishment of additional permanent reserves for species movement unlikely. Objectives. Here we explore the potential for opportunistic and dynamic conservation reserves, in the form of temporary fallowed croplands, to increase connectivity in competing land use regions. Methods. We evaluate the potential for fallowed lands to facilitate habitat connectivity for at-risk species in the San Joaquin Valley (SJV), an intensive agricultural landscape in California. We perform landscape connectivity analyses to examine how historic drought-induced fallowing from 2011 to 2017 in the SJV region impacted connectivity within Kern County for the endangered, endemic San Joaquin kit fox (Vulpes macrotis mutica). Results. We found that an increase in temporary fallowing from 2011 to 2015/2017 in Kern County likely increased habitat connectivity for the kit fox. This finding was represented by reductions in average Cost-Weighted Distances (CWD), Effective Resistances, and CWD-to-Least Cost Path Ratios between core habitat areas, indicating that cumulative costs incurred by kit foxes travelling between primary habitats decreased. Conclusions. Our findings highlight that strategic and cooperative, yet temporary, conservation actions have the potential to reduce the conflict between biodiversity preservation and agricultural production in working landscapes while increasing landscape connectivity. Fallowing-based, agri-environmental schemes could help working areas meet statewide groundwater management policy targets while improving species’ mobility in the face of climate change.

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NHDPlus High Resolution (NHDPlus HR)---A hydrography framework for the Nation

Cited by 25 publications

References 1 publication

Does Photomineralization of Dissolved Organics Matter in Temperate Rivers?

Does Photomineralization of Dissolved Organics Matter in Temperate Rivers?

Hydrography90m: A new high-resolution global hydrographic dataset

Implications of Climate-Driven Fallowing for Ecological Connectivity of Species At Risk

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