Xan Fredericks
Xan works with the National Geospatial Program as the National Map Liaison to Florida, Georgia, Puerto Rico, and the U.S. Virgin Islands and is the Deputy Chair of the Geospatial Information Response Team.
Alexandra “Xan” Fredericks is the National Map Liaison to Florida, Georgia, Puerto Rico, and the U.S. Virgin Islands for the U.S. Geological Survey National Geospatial Program User Engagement Office and serves as the Deputy Chair of the Geospatial Information Response Team. She is the Chair of the USGS Lidar User Group and Co-Chair of the American Society for Photogrammetry and Remote Sensing (ASPRS) Bathymetry Working Group. Xan works to help people, from USGS scientists and our Nation’s residents to a variety of agencies and entities, discover and coordinate geospatial data through outreach, collaboration, and data visualization.
Xan is a GISCI-certified GIS Professional with an MGIS from Penn State University and a BS in Marine Science-Geology from Eckerd College. She has served on the Urban and Regional Information Systems Association (URISA) Board of Directors and is a Past President of the ASPRS Florida Region. Prior to her current role, Xan was the Lidar Coordinator for the USGS Coastal and Marine Hazards and Resources Program.
Science and Products
EAARL coastal topography– Northeast barrier islands 2007: Bare earth
EAARL coastal topography–Northeast Barrier Islands 2007: First surface
EAARL submerged topography– U.S. Virgin Islands 2003
EAARL coastal topography — Sandy Hook 2007
EAARL topography - Natchez Trace Parkway 2007: First surface
EAARL topography - Vicksburg National Military Park 2008: Bare earth
EAARL Topography: Jean Lafitte National Historical Park and Preserve 2006
EAARL coastal topography — Fire Island National Seashore 2007
Science and Products
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EAARL coastal topography– Northeast barrier islands 2007: Bare earth
These remotely sensed, geographically referenced elevation measurements of Lidar-derived bare earth (BE) topography were produced collaboratively by the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate datasetsAuthorsAmar Nayegandhi, John Brock, A. H. Sallenger, C. Wayne Wright, Xan Yates, Jamie M. BonisteelEAARL coastal topography–Northeast Barrier Islands 2007: First surface
These remotely sensed, geographically referenced elevation measurements of Lidar-derived first surface (FS) topography were produced collaboratively by the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate datasetsAuthorsAmar Nayegandhi, John Brock, A. H. Sallenger, C. Wayne Wright, Xan Yates, Jamie M. BonisteelEAARL submerged topography– U.S. Virgin Islands 2003
These remotely sensed, geographically referenced elevation measurements of Lidar-derived submerged topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), South Florida-Caribbean Network, Miami, FL; and the National Aeronautics and Space Administration (NASA), WallopAuthorsAmar Nayegandhi, John Brock, C. Wayne Wright, Sara Stevens, Xan Yates, Jamie M. BonisteelEAARL coastal topography — Sandy Hook 2007
These remotely sensed, geographically referenced elevation measurements of Lidar-derived topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Northeast Coastal and Barrier Network, Kingston, RI; and the National Aeronautics and Space Administration (NASA), WallopsAuthorsAmar Nayegandhi, John Brock, C. Wayne Wright, Sara Stevens, Xan Yates, Jamie M. BonisteelEAARL topography - Natchez Trace Parkway 2007: First surface
These remotely sensed, geographically referenced elevation measurements of Lidar-derived first surface (FS) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Gulf Coast Network, Lafayette, LA; and the National Aeronautics and Space Administration (NASA), WallopAuthorsAmar Nayegandhi, John Brock, C. Wayne Wright, Martha Segura, Xan YatesEAARL topography - Vicksburg National Military Park 2008: Bare earth
These remotely sensed, geographically referenced elevation measurements of Lidar-derived bare earth (BE) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Gulf Coast Network, Lafayette, LA; and the National Aeronautics and Space Administration (NASA), Wallops FAuthorsAmar Nayegandhi, John Brock, C. Wayne Wright, Martha Segura, Xan YatesEAARL Topography: Jean Lafitte National Historical Park and Preserve 2006
These remotely sensed, geographically referenced elevation measurements of Lidar-derived first surface (FS) and bare earth (BE) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Gulf Coast Network, Lafayette, LA; and the National Aeronautics and Space AdministrAuthorsAmar Nayegandhi, John Brock, C. Wayne Wright, Martha Segura, Xan YatesEAARL coastal topography — Fire Island National Seashore 2007
These remotely sensed, geographically referenced elevation measurements of Lidar-derived first surface (FS) and bare earth (BE) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Northeast Coastal and Barrier Network, Kingston, RI; and the National Aeronautics aAuthorsAmar Nayegandhi, John Brock, C. Wayne Wright, Sara Stevens, Xan Yates, Jamie M. Bonisteel - Science
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