structure from motion

Knowledge graph centered on structure from motion with 75 nodes and 172 connections. Top connected: Atriplex canescens, climate change, snowpack persistence, groundwater storage dynamics, leaf water content.

Method synopsis

Integrates multiple spatial data layers including lidar, airborne geophysics, hyperspectral remote sensing, and satellite data to characterize hillslope properties. Computes average values and percentage coverage of categorical variables within each hillslope.

Synthesized from method descriptions across 8 papers 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 — Controls from above and below: Snow, soil, and steepness drive diverging trends of subsurface water and streamflow dynamics (2025), Hydrological Processes. The protocol was originally introduced by Watershed zonation through hillslope clustering for tractably quantifying above-and below-ground watershed heterogeneity and functions (2022), Hydrology and Earth System Sciences. Implementations in other papers (listed below) may differ.

1. Select study catchments
   Selected 15 minimally impacted headwater catchments located throughout the contiguous United States from Critical Zone Observatories, Long Term Ecological Research sites, Science Focus Areas, and experimental/research watersheds run by USDA and USGS. Catchments span three orders of magnitude in drainage area from about 0.20 km² to about 84.13 km² and encompass Mediterranean and Continental Köppen climate classes.
   Quantities: 15 catchments, drainage areas 0.20-84.13 km², elevations 398-3529 m, slopes 11-59°Duration: Not specifiedConditions: Minimally impacted headwater catchments across gradients of climate conditions and land characteristics
   Equipment: Digital elevation data, USGS StreamStats, State Geologic Map Compilation geodatabase
2. Obtain catchment characteristic data
   Delineated catchment drainage areas from USGS 3D Elevation Program using USGS StreamStats. Obtained dominant lithology from State Geologic Map Compilation geodatabase. Calculated average soil parameters for each catchment as weighted averages based on proportion of land area covered by each soil type from SSURGO Soil Survey data.
   Quantities: 15 catchments with complete physical characteristic datasetsDuration: Not specifiedConditions: Standard GIS processing conditions

Typical Equipment

• Lidar DEM
• AEM survey data
• NEON data products
• POLARIS soil database
• USGS land-cover map

Output Measurements

• hillslope topographic metrics
• vegetation indices
• bedrock properties
• soil characteristics
• land cover percentages

Papers Using This Protocol (9)

Species Studied With This Protocol

Places Where Used