Post Hurricane Harvey Mapping of the Mission River, Texas 2018 (Ch 1, 2, 3)

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Overview

This lidar dataset was collected as part of an NCALM Rapid Response Project for Inci Gunerlap at Texas A&M University. Data collection covers and area of ~69 km² along the Mission River in Refugio, Texas after Hurricane Harvey.

Note that this project utilized three laser channels during its data collection. Channel 1 (1550 nm), Channel 2 (1064 nm), and Channel 3 (532 nm).

Pre-computed rasters using C1-2-3 contains the following:

DEM from classified ground and bathymetry returns from all channels
DSM from first returns from all channels (C1C2C3)
Water surface grid from point class 39
Bathymetry grid from point class 9

This data collection also contains hyperspectral images that are 72 Band, 1.5 m pixel size, in PCIDSK (.PIX) format. The digital number in the PIX image corresponds to milli-SRU (spectral radiance units). One SRU is equivalent to one microwatt per square-centimeter per steradian per nanometer. Files are provided as individual flight strips as well as a single mosaic file of flight strips. These images can be downloaded here

Platform: Airborne Lidar

Survey Area: 68 km²

Raster Resolution: 0.5 meter

Survey Date: 03/08/2018 - 03/09/2018

Full Metadata

Data Citation

Use License: CC BY 4.0

Funder: NSF Collector: NCALM

Other Available Data Products: Point Cloud, Raster (C1-2), Raster Bulk Download (Sign in required)

1. Select area of data to process:

Usage Heat Map

1. Coordinates

Horizontal Coordinates: NAD83 (2011) UTM Zone 14N [EPSG: 6343]
Vertical Coordinates: NAVD88 (GEOID 12A) [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

Select Data Output Format:

3. Layer Types & Additional SRTM Data

Digital Elevation Models (DEMs)

Digital Terrain Model (DTM)	Digital Terrain Model (DTM)	DTM with bathymetry
Digital Surface Model (DSM)	Digital Surface Model (DSM)	Water Surface

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

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).

Job title (up to 150 characters)

Job description (up to 750 characters)

Enter your e-mail address
for notification upon completion of processing

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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Post Hurricane Harvey Mapping of the Mission River, Texas 2018 (Ch 1, 2, 3)