Daniel L. Warner

GIS Analyst
Areas of Expertise

Daniel Warner joined the DGS staff in August 2018 as a GIS Analyst. Dan will primarily be working on developing high resolution contour maps for the state of Delaware, and will perform terrain analyses for the collaborative StreamStats project with USGS. Both projects will provide valuable data products for engineers, consultants, and researchers working in Delaware.

Prior to working at DGS, Mr. Warner completed a doctoral program in Water Science at the University of Delaware, where his research focused on the interactions between water and carbon cycles in topographically complex ecosystems.

University of Delaware, 2018, Ph.D., Water Science and Policy
Indiana University, 2012, M.S., Environmental Science
Indiana University, 2011, B.S., Environmental Science
External Publications

Warner, D.L., Callahan, J., McKenna, T., Medlock, C. 2023. Reducing vertical bias and error in tidal marsh digital elevation models with machine learning and LiDAR derivatives. Estuarine, Coastal and Shelf Science, 291, 108442.

Warner, D.L., Guevara, M., Callahan, J., & Vargas, R. 2021. Downscaling satellite soil moisture for landscape applications: A case study in Delaware, USA. Journal of Hydrology: Regional Studies, 38(December 2021), 100946. https://doi.org/10.1016/j.ejrh.2021.100946

Warner, D.L., Guevara, M, Inamdar, S, Vargas, R. 2019. Upscaling soil-atmosphere CO2 and CH4 fluxes across a topographically complex forested landscape. Agricultural and Forest Meteorology 264. 80-91

Warner, D.L., Vargas, R., Seyfferth, A., Inamdar, S. 2018. Transitional slopes act as hotspots of both soil CO2 efflux and net CH4 uptake in a temperate forested landscape. Biogeochemistry: 138(2), 121–135. doi: 10.1007/s10533-018-0435-0

Inamdar, S., Johnson, E., Rowland, R., Warner, D.L., Walter, R., Merritts, D. 2017. Freeze-thaw processes and intense rainfall: The one-two punch for high sediment and nutrient loads from Mid-Atlantic Watersheds. Biogeochemistry. doi: 10.1007/s10533-017-0417-7

Warner, D.L., Villarreal, S., McWilliams, K., Inamdar, S., Vargas, R.. 2017. Carbon dioxide and methane fluxes from tree stems, coarse woody debris, and soils in an upland temperate forest. Ecosystems: 20(6), 1205-1216. doi: 10.1007/s10021-016-0106-8

Abstracts, Lectures and Presentations

Warner DL, Ramsey KW, Wunsch DR. Modeling 21st century beach sand resource supply and demand for Delaware and Maryland. American Shore and Beach Preservation Association Annual Meeting. Providence, RI. 10/11/23.