High-resolution meander delineation using NHD and DEM data

Knowledge graph centered on High-resolution meander delineation using NHD and DEM data with 22 nodes and 71 connections. Top connected: Atriplex canescens, weathering, Impact of intra-meander hyporheic flow on nitrogen, hyporheic zone, nitrate removal.

Method synopsis

Integration of USGS Digital Elevation Models with National Hydrography Dataset to accurately delineate stream meanders for hydrological modeling when standard DEM resolution is insufficient.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Impact of intra-meander hyporheic flow on nitrogen cycling (2017), Procedia Earth and Planetary Science. Implementations in other papers (listed below) may differ.

1. Acquire and process digital elevation data
   Digital Elevation Models (DEM) of 10 m resolution were acquired from the USGS and processed to burn in river locations in the modeling domain. When DEM of 10 m resolution failed to capture high-resolution geomorphological features like meanders, the high-resolution drainage network from the National Hydrography Dataset (NHD) was used to delineate meanders at exact locations
   Quantities: 10 m resolution DEM, modeling domain of 330 m by 400 m horizontal extent, 48 m vertical extentDuration: Not specifiedConditions: Lower East River catchment in southwestern Colorado, high elevation catchment with rolling-to-mountainous topography
   Equipment: USGS Digital Elevation Models, National Hydrography Dataset (NHD)

Typical Equipment

• USGS Digital Elevation Models
• National Hydrography Dataset (NHD)

Output Measurements

• meander locations
• stream network geometry
• modeling domain boundaries

Papers Using This Protocol (1)

Species Studied With This Protocol