Projects and Research
We currently have two research projects on the refuge. The first is the vulnerability assessment of baldcypress swamps toat the edge of their range conducted by the United States Geological Survey.
Mississippi River Sediment Delivery and Hydraulic Connectivity to the Cat Island Swamp
This study is spearheaded by Tulane University. Looking at LiDar data in conjunction with core samples, the study will determine how much sediment is being deposited by the Mississippi River with prolonged flooding events. The project will develop a GIS map of elevation in the refuge (using LiDAR data) that will be referenced to Mississippi River stage gage elevation, correcting for slope of the river's surface over the river miles that the refuge extends. This will produce a map of predicted flood elevation depths in the refuge and surrounding private lands. Sedimentation monitoring sites will be established across a range of land cover (forest habitat) and geomorphological gradients. Cores will be examined to look at sedimentation rates on timescales of decades to a century. Core material will be examined to differentiate the sediments between river-derived and leaf litter that is locally derived. The study will look in detail at sedimentation that occurred in the 2020 and 2021 flood events using the cores, feldspar plots and ceramic tiles. This will allow us to examine the specific characteristics of Mississippi River floods of known magnitude and sediment transport characteristics.