Dataset: Ducks Unlimited Marsh Terraces BGREN Mosaic
Date:    2019-05-29

Dataset Abstract:

This dataset consists of unmanned aerial system (UAS) imagery taken from
a DJI Phantom 4 Pro carrying a MicaSense RedEdge 5-band multispectral
camera near Golden Meadow, LA in late May 2019. Images were taken with
the goal of monitoring the efficacy of marsh terraces in helping to
protect and restore coastal wetlands.

Note: This dataset is incomplete. Full area data was flown on
2019/07/25.

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 MicaSense RedEdge sensor, a five-band sensor
that produces an image for each band.

The bands are blue, green, red, red edge, and near infrared.
Center wavelengths are 475 nm, 560 nm, 668 nm, 717 nm, and 840 nm.
The bandwidth for each is 20, 20, 10, 10, and 40 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 were used.

The reflectance values, ranging from what should be 0.0 to 1.0.  Due to 
limitations in collection and the downwelling light sensor for the RedEdge,
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:   3256008.65958 (top)
             761409.02308 (left)
             762394.57017 (right)
            3254949.72203 (bottom)

Point of contact:

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