Drained wetlands can constitute a large source of greenhouse gas emissions, but the drainage networks in these are largely unmapped, and better maps needed to aid forest production understand climate consequences. We develop method for detecting ditches high resolution digital elevation models derived from LiDAR scans. Thresholding methods using terrain indices be used detect ditches. However, ...

The National Oceanic and Atmospheric Administration (NOAA) Centers for Environmental Information (NCEI) generates digital elevation models (DEMs) that range from the local to global scale. Collectively, these DEMs are essential determining timing extent of coastal inundation improving community preparedness, event forecasting, warning systems. We initiated a comprehensive framework at NCEI, Con...