Dataset: Ducks Unlimited Marsh Terraces BGREN Mosaic
Date:    2020-10-07

Dataset Abstract:

This dataset consists of unmanned aerial system (UAS) imagery taken from
a DJI Phantom 4 Pro carrying a DJI FC6360 5-band multispectral
camera near Golden Meadow, LA in early October 2020. Images were taken with
the goal of monitoring the efficacy of marsh terraces in helping to
protect and restore coastal wetlands.

Purpose: Collection of data is to provide visual representation of the
study area in order to assess marsh terrace effectiveness.

Data Description:

Imagery was collected using a DJI FC6360 camera, a five-band sensor
that produces an image for each band, as well as a traditional RGB
image.

The bands are blue, green, red, red edge, and near infrared.
Center wavelengths are 450 nm, 560 nm, 650 nm, 730 nm, and 840 nm.
The bandwidth for each is 32, 32, 32, 32, and 52 nm, respectively.

The data has been processed into an orthomosaic using Pix4D's Pix4Dmapper.
The process converts the imagery into reflectance units. For this particular
image set, a reflectance panel and irradiance sensor was used.

The reflectance values should range from 0.0 to 1.0.  Due to 
limitations in collection and the downwelling light sensor for the Phantom 4,
these values will be incorrect if lighting has changed significantly.
In general, this will be because of cloud cover. There is a small amount
of solar irradiance change as well over the flight, although that change
should not heavily impact the data for its intended use.

The orthomosaic is in 32-bit floating point BGREN (blue, green, red,
red edge, NIR) GeoTIFF format.

Geographic Information:

Projection: WGS84 UTM Zone 15
Horizontal: meters
Location:   3256009.10441 (top)
             761219.92031 (left)
             762395.47979 (right)
            3254681.98955 (bottom)

Point of contact:

Robert Moorhead, rjm@gri.msstate.edu
Lee Hathcock, hathcock@gri.msstate.edu