Sediment Accretion Rates and Spatial Patterns in the Wax Lake Delta, LA 2020

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Overview

p>Rising sea levels and an increasing frequency of storm events has put many worldwide deltas at risk. However, sediment deposition from fluvial sources can build land in deltas and counteract this modern trend of land loss. Understanding sediment transport and deposition patterns in coastal deltas thus represents a promising approach to maximizing their future survival. This lidar dataset was collected as part of an NCALM Seed grant for Justin Nghiem at the California Institute of Technology to help understand modern coastal sediment accretion rates and spatial patterns in the Wax Lake Delta, LA. The study area is located southwest of Morgan City, LA and covers approximately 53 km².

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

Platform: Airborne Lidar

Survey Area: 53 km²

Raster Resolution: 1.0 meter

Survey Date: 11/06/2020

Full Metadata

Data Citation

Use License: CC BY 4.0

Funder: NSF Collector: NCALM

Other Available Data Products: Point Cloud, Raster Bulk Download (Sign in required)

1. Select area of data to process:

Usage Heat Map

1. Coordinates

Horizontal Coordinates: NAD83 (2011) / UTM Zone 15N Meters [EPSG: 6344]
Vertical Coordinates: NAVD88 (GEOID 18) [EPSG: 5703]
Units: meter

Data Selection Coordinates: Manually enter selection coordinates (in the horizontal coordinate system listed above)

X_min =	Y_min =	X_max =	Y_max =
X_min =	Y_min =	X_max =	Y_max =

2. Data Output Formats

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3. Layer Types & Additional SRTM Data

Digital Elevation Models (DEMs)

Digital Terrain Model (DTM)
Digital Surface Model (DSM)

Include Global 30m SRTM Data

5. Canopy Height Model (CHM)

Generate Canopy Height Model from DSM and DTM

This algorithm requires both Digital Terrain Model (DTM) and Digital Surface Model (DSM) from step 3 above. To enable DTM and DSM click here

6. Contour Lines

    Generate contour lines
    Output smoothed DEM
    Generate visualization

DEM Gaussian Radius (pixels)
Contour Interval (meter)

File output type

This algorithm requires either Digital Terrain Model (DTM) or Digital Surface Model (DSM) from step 3 above. To enable DTM/DSM click here

7. Hydrologic Terrain Analysis Products (tauDEM):

This tauDEM is an advanced processing service. It is available for registered users, who understand these resource intensive algorithms and its products.
In order to access or enable this service, please log in or request an account.

Job Description

These options allow users to describe and keep track of their jobs. Information entered below is recorded along with other job parameters in your personal lidar job archive accessed via myOpenTopo (available only to registered OpenTopography users).

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By accessing data via OpenTopography you agree to acknowledge OpenTopography and the dataset source in publications, presentations, and other materials produced using these data:
Data Citation | Use License: CC BY 4.0

Vertical Exaggeration	(in range: [1, 100])
Multidirectional hillshade
Altitude of light source	(in range: [0-90] degrees)
Azimuth of light source	(in range: [0-360] degrees)

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Sediment Accretion Rates and Spatial Patterns in the Wax Lake Delta, LA 2020