Durham, NH: Hyporheic Zone Extent and Exchange in a Coastal Stream

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Overview

NCALM Seed Project PI: Danna Truslow, University of New Hampshire. The survey area is an irregular polygon approximately 16 km West of Portsmouth, NH and enclosing 42.5 square kilometers. The data were collected to study hyporheic zone extent and exchange in a coastal New Hampshire stream using heat as a tracer.


Publications associated with this dataset can be found at NCALM's Data Tracking Center

Platform: Airborne Lidar
Survey Area: 47 km2
Point Density: 10.99 pts/m2
Survey Date: 11/11/2008
Full Metadata
Data Citation
Use License: CC BY 4.0
Funder: NSF     Collector: NCALM

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1. Coordinates & Classification

Horizontal Coordinates: NAD83 (CORS96) / UTM Zone 19N Meters [EPSG: 26919]
Vertical Coordinates: NAVD88 (GEOID 03) [EPSG: 5703]
Units: meter

Data Selection Coordinates:       Manually enter selection coordinates (in the horizontal coordinate system listed above)  
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2. Point Cloud Data Download

     Point cloud data in LAZ format
    Point cloud data in LAS format
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3A. DEM Generation (TIN)  

Gridding Method
    Calculate TIN
Gridding Parameters
  Grid Resolution (Default = 1 meter)
  Max. triangle size (Default 50 units)
  Grid Format

3B. DEM Generation (Local Gridding)  

Gridding Method
     Calculate Zmin grid
     Calculate Zmax grid
     Calculate Zmean grid
     Calculate Zidw grid
     Calculate standard deviation
     Calculate point count
Gridding Parameters
  Grid Resolution (Default = 1 meter)
  Radius value (Default = 1.4142 meter)
  Grid Format
  Null Filling

4. Raster Visualization  

Visualization type:
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  Color-relief
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  Slope
  Aspect
  Roughness

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6. Contour Lines  

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Job Description

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Data Citation     |     Use License: CC BY 4.0