Xan Fredericks
Xan is the Emergency Response Coordinator for the USGS National Geospatial Program, overseeing emergency response activities and the Bureau’s Geospatial Information Response Team. She collaborates with a variety of partners to aid discovery and coordination of geospatial data, as well as the delivery of actionable, science-based information to the Bureau, other agencies, and emergency responders.
Connect with GIRT
Connect with GIRT
The USGS Geospatial Information Response Team supports geospatial data access during disaster events.
Alexandra “Xan” Fredericks works for the USGS National Geospatial Program as the Emergency Response Coordinator and is Chair of the USGS Geospatial Information Response Team, facilitating the effective coordination, communication, and dissemination of geospatial data and information during disaster events.
Xan is Co-Chair of the American Society for Photogrammetry and Remote Sensing (ASPRS) Bathymetry Working Group and previously chaired the USGS Lidar User Group for over seven years. She is a past National Director of the ASPRS GIS Division and a past President of the ASPRS Florida Region, having also served on the Geospatial Professional Network (formerly URISA) Board of Directors. Xan is a GISCI-certified GIS Professional with an MGIS from Penn State University and a BS in Marine Science-Geology from Eckerd College.
Prior to her current role, Xan served as the National Map Liaison to Florida, Georgia, Puerto Rico, and the U.S. Virgin Islands for the USGS NGP User Engagement Office during which time she used her expertise on National Map products and services to engage with users and stakeholders in all 50 states and U.S. territories. Before joining NGP, she was the Lidar Coordinator for the USGS Coastal and Marine Hazards and Resources Program for five years.
Professional Experience
USGS NGP Emergency Response Coordinator, 2024-Present
USGS National Map Liaison, 2021-2024
USGS Associate National Map Liaison, 2018-2021
USGS Coastal and Marine Hazards and Resources Program Lidar Coordinator, 2016-2021
Education and Certifications
GISCI-certified Geographic Information Systems Professional (GISP) #90578
Master of Geographic Information Systems (MGIS); Penn State University
Postbaccalaureate Certificate, Geographic Information Systems; Penn State University
Bachelor of Science (BS), Marine Science – Geology; Eckerd College
Affiliations and Memberships*
ASPRS, 2015-Present
Geospatial Professional Network (formerly URISA), 2015-Present
Honors and Awards
The USGS Geospatial Information Response Team received a 2021 Esri Special Achievement in GIS award
Xan was named one of the 2021 Geospatial World 50 Rising Stars
Abstracts and Presentations
USGS National Geospatial Program: Emergency Response Coordination; 2024 Central Florida GIS Workshop Keynote: Daytona Beach, FL, September 9, 2024
USGS National Geospatial Program: Leaping into Trusted Topographic Information; 2024 Wisconsin Land Imaging Association Annual Conference Keynote: Green Bay, WI, February 29, 2024
USGS National Geospatial Program: Lighting the Path to Trusted Topographic Information; 2023 Minnesota GIS/LIS Consortium Annual Conference & Workshops Keynote: Duluth, MI, October 5, 2023
USGS National Geospatial Program: Resources for Resilience; 2023 Central Florida GIS Workshop Keynote: Daytona Beach, FL, September 11, 2023
USGS Geospatial Information Response & User Engagement; 2021 Esri Ocean, Weather, and Climate GIS Forum Technical Keynote: Virtual, November 4, 2021
How the USGS Serves Florida Geospatially; 2021 MAPPS Winter Meeting Keynote: Virtual, January 26, 2021
How the USGS Empowers West-Central Florida Geospatially; 2019 GeoFlo Summit Keynote: Plant City, FL, November 5, 2019
How the USGS Serves Florida Geospatially; 2019 Central Florida GIS Workshop Keynote: Daytona Beach, FL, September 9, 2019
From Citizens to Scientists: How the USGS Serves Florida Geospatially; 2019 South Florida GIS Expo Keynote: West Palm Beach, FL, August 22, 2019
Why GIS Matters; 2018 Ohio GIS Conference Keynote: Columbus, OH, September 24, 2018
Science and Products
Filter Total Items: 56
EAARL Coastal Topography-Cape Hatteras National Seashore, North Carolina, Post-Nor'Ida, 2009: Bare Earth
These remotely sensed, geographically referenced elevation measurements of lidar-derived bare-earth (BE) topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Park Service (NPS), Northeast Coastal and Barrier Network, Kingston, RI. This project provides highly detailed and accur
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, J. C. Brock, C. W. Wright, D.B. Nagle, Sara Stevens
EAARL coastal topography - Assateague Island National Seashore, Maryland and Virginia, 2010
This DVD contains lidar-derived bare-earth (BE) and first-surface (FS) topography GIS datasets of a portion of the Assateague Island National Seashore in Maryland and Virginia. These datasets were acquired on March 19 and 24, 2010.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, C. W. Wright, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, E.S. Klipp, Xan Fredericks, Sara Stevens
EAARL coastal topography-Virginia, post-Nor'Ida, 2009
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Virginia coastline beachface. These datasets were acquired post-Nor'Ida on November 27, 2009, November 29, 2009, and December 1, 2009.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, E.S. Klipp, D.B. Nagle, Saisudha Vivekanandan, C. W. Wright, A. H. Sallenger, J. C. Brock
EAARL coastal topography-Northern Outer Banks, North Carolina, post-Nor'Ida, 2009
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the northern Outer Banks beachface in North Carolina. These datasets were acquired post-Nor'Ida on November 27 and 29, 2009.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, C. W. Wright, A. H. Sallenger, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, E.S. Klipp, Xan Fredericks
EAARL topography-Three Mile Creek and Mobile-Tensaw Delta, Alabama, 2010
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Mobile-Tensaw Delta region and Three Mile Creek in Alabama. These datasets were acquired on March 6, 2010.
Authors
Amar Nayegandhi, J.M. Bonisteel-Cormier, A.P. Clark, C. W. Wright, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, Xan Fredericks
EAARL coastal topography-eastern Florida, post-Hurricane Jeanne, 2004
This DVD contains lidar-derived bare-earth (BE) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Jeanne on October 1, 2004.
Authors
Xan Fredericks, Amar Nayegandhi, J.M. Bonisteel-Cormier, C. W. Wright, A. H. Sallenger, J. C. Brock, E.S. Klipp, D.B. Nagle
EAARL topography-Potato Creek watershed, Georgia, 2010
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Potato Creek watershed in the Apalachicola-Chattahoochee-Flint River basin, Georgia. These datasets were acquired on February 27, 2010.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, J. W. Jones, C. W. Wright, J. C. Brock, D.B. Nagle
EAARL coastal topography-eastern Florida, post-Hurricane Frances, 2004: bare earth
This DVD contains lidar-derived bare-earth (BE) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Frances on September 9, 2004.
Authors
Xan Yates, Amar Nayegandhi, Jamie M. Bonisteel, C. Wayne Wright, A. H. Sallenger, John Brock, Emily S. Klipp, David B. Nagle
EAARL coastal topography-Gateway National Recreation Area, New Jersey and New York, 2009
This DVD contains lidar-derived bare-earth (BE) and first-surface (FS) topography GIS datasets of a portion of the Gateway National Recreation Area in New Jersey and New York. These datasets were acquired July 8-9, 2009.
Authors
Amar Nayegandhi, Saisudha Vivekanandan, John Brock, Sara Stevens, C. Wayne Wright, Jamie M. Bonisteel, David B. Nagle, Xan Yates, Emily S. Klipp
EAARL coastal topography-eastern Florida, post-Hurricane Frances, 2004: first surface
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Frances on September 9, 2004.
Authors
Xan Yates, Amar Nayegandhi, Jamie M. Bonisteel, C. Wayne Wright, A. H. Sallenger, John Brock, Emily S. Klipp, David B. Nagle
EAARL Coastal Topography-Chandeleur Islands, Louisiana, 2010: Bare Earth
These remotely sensed, geographically referenced elevation measurements of lidar-derived bare-earth (BE) and submerged topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA.
This project provides highly
Authors
Amar Nayegandhi, Jamie M. Bonisteel-Cormier, John Brock, A. H. Sallenger, C. Wayne Wright, David B. Nagle, Saisudha Vivekanandan, Xan Yates, Emily S. Klipp
ATM Coastal Topography-Louisiana, 2001: UTM Zone 15 (Part 1 of 2)
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 datase
Authors
Xan Yates, Amar Nayegandhi, John Brock, A. H. Sallenger, Emily S. Klipp, C. Wayne Wright
Filter Total Items: 32
Coastal Topography-Anegada, British Virgin Islands, 2014
These datasets provide lidar-derived topography for Anegada and a portion of the submerged environs. Elevation measurements were acquired on January 21, 2014 by an Optech Orion M300, and on March 19-20, 2014 by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B).
The authors acknowledge Emily Klipp, Chris Pali, Virgil Rabine, Rudy Troche, and Wayne Wright, all formerly o
Coastal Topography-Fire Island, New York, 07 May 2012
Lidar-derived bare-earth topography Digital Elevation Model (DEM) mosaic and classified point-cloud datasets for Fire Island, New York, were produced from remotely sensed, geographically referenced elevation measurements collected on May 7, 2012.
EAARL Coastal Topography-Assateague Island National Seashore, Maryland and Virginia, 2002
These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in collaboration with the National Park Service, provide lidar-derived first-surface and bare-earth topography for Assateague Island National Seashore, Maryland and Virginia. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) during September 2002.
EAARL-B Topography-Suncook River, New Hampshire, 5-6 November 2013: Seamless (Bare Earth and Submerged)
This point-cloud dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for a portion of the Suncook River in New Hampshire. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on November 5 and 6, 2013, in cooperation wi
EAARL Coastal Topography-Chandeleur Islands, Louisiana, 4-5 September 2010: Seamless (Bare Earth and Submerged)
This XYZ dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for the Chandeleur Islands in Louisiana. Elevation measurements were acquired by the first-generation Experimental Advanced Airborne Research Lidar (EAARL) on September 4 and 5, 2010. The data were collected as part of a se
Coastal Topography-Assateague Island, Maryland and Virginia, Post-Hurricane Joaquin, 26 November 2015
Lidar-derived bare-earth topography Digital Elevation Model (DEM) mosaic and classified point-cloud datasets were produced from remotely sensed, geographically referenced elevation measurements collected post-Hurricane Joaquin on November 26, 2015.
EAARL-B Topography-Big Thicket National Preserve: Canyonlands and Upper Neches River Corridor Units, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Canyonlands and Upper Neches River Corridor Units of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 11,
EAARL-B Topography-Big Thicket National Preserve: Menard Creek Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Menard Creek Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 21 and 22, 2014, in coopera
EAARL Coastal Topography-Chandeleur Islands, Louisiana, 12-13 February 2011: Seamless (Bare Earth and Submerged)
This XYZ dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for the Chandeleur Islands in Louisiana. Elevation measurements were acquired by the first-generation Experimental Advanced Airborne Research Lidar (EAARL) on February 12 and 13, 2011. The data were collected as part of a s
EAARL-B Topography-Big Thicket National Preserve: Lower Neches River Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Lower Neches River Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 11, 15, 17, 18, 19, 2
EAARL-B Topography-Big Thicket National Preserve: Little Pine Island Bayou Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Little Pine Island Bayou Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 15, 21, 22, 26,
EAARL-B Topography-Big Thicket National Preserve: Big Sandy Creek Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Big Sandy Creek Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 19, 21, 22, 29, and 30,
Filter Total Items: 20
Science and Products
Filter Total Items: 56
EAARL Coastal Topography-Cape Hatteras National Seashore, North Carolina, Post-Nor'Ida, 2009: Bare Earth
These remotely sensed, geographically referenced elevation measurements of lidar-derived bare-earth (BE) topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Park Service (NPS), Northeast Coastal and Barrier Network, Kingston, RI. This project provides highly detailed and accur
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, J. C. Brock, C. W. Wright, D.B. Nagle, Sara Stevens
EAARL coastal topography - Assateague Island National Seashore, Maryland and Virginia, 2010
This DVD contains lidar-derived bare-earth (BE) and first-surface (FS) topography GIS datasets of a portion of the Assateague Island National Seashore in Maryland and Virginia. These datasets were acquired on March 19 and 24, 2010.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, C. W. Wright, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, E.S. Klipp, Xan Fredericks, Sara Stevens
EAARL coastal topography-Virginia, post-Nor'Ida, 2009
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Virginia coastline beachface. These datasets were acquired post-Nor'Ida on November 27, 2009, November 29, 2009, and December 1, 2009.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, E.S. Klipp, D.B. Nagle, Saisudha Vivekanandan, C. W. Wright, A. H. Sallenger, J. C. Brock
EAARL coastal topography-Northern Outer Banks, North Carolina, post-Nor'Ida, 2009
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the northern Outer Banks beachface in North Carolina. These datasets were acquired post-Nor'Ida on November 27 and 29, 2009.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, C. W. Wright, A. H. Sallenger, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, E.S. Klipp, Xan Fredericks
EAARL topography-Three Mile Creek and Mobile-Tensaw Delta, Alabama, 2010
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Mobile-Tensaw Delta region and Three Mile Creek in Alabama. These datasets were acquired on March 6, 2010.
Authors
Amar Nayegandhi, J.M. Bonisteel-Cormier, A.P. Clark, C. W. Wright, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, Xan Fredericks
EAARL coastal topography-eastern Florida, post-Hurricane Jeanne, 2004
This DVD contains lidar-derived bare-earth (BE) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Jeanne on October 1, 2004.
Authors
Xan Fredericks, Amar Nayegandhi, J.M. Bonisteel-Cormier, C. W. Wright, A. H. Sallenger, J. C. Brock, E.S. Klipp, D.B. Nagle
EAARL topography-Potato Creek watershed, Georgia, 2010
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Potato Creek watershed in the Apalachicola-Chattahoochee-Flint River basin, Georgia. These datasets were acquired on February 27, 2010.
Authors
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, J. W. Jones, C. W. Wright, J. C. Brock, D.B. Nagle
EAARL coastal topography-eastern Florida, post-Hurricane Frances, 2004: bare earth
This DVD contains lidar-derived bare-earth (BE) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Frances on September 9, 2004.
Authors
Xan Yates, Amar Nayegandhi, Jamie M. Bonisteel, C. Wayne Wright, A. H. Sallenger, John Brock, Emily S. Klipp, David B. Nagle
EAARL coastal topography-Gateway National Recreation Area, New Jersey and New York, 2009
This DVD contains lidar-derived bare-earth (BE) and first-surface (FS) topography GIS datasets of a portion of the Gateway National Recreation Area in New Jersey and New York. These datasets were acquired July 8-9, 2009.
Authors
Amar Nayegandhi, Saisudha Vivekanandan, John Brock, Sara Stevens, C. Wayne Wright, Jamie M. Bonisteel, David B. Nagle, Xan Yates, Emily S. Klipp
EAARL coastal topography-eastern Florida, post-Hurricane Frances, 2004: first surface
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Frances on September 9, 2004.
Authors
Xan Yates, Amar Nayegandhi, Jamie M. Bonisteel, C. Wayne Wright, A. H. Sallenger, John Brock, Emily S. Klipp, David B. Nagle
EAARL Coastal Topography-Chandeleur Islands, Louisiana, 2010: Bare Earth
These remotely sensed, geographically referenced elevation measurements of lidar-derived bare-earth (BE) and submerged topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA.
This project provides highly
Authors
Amar Nayegandhi, Jamie M. Bonisteel-Cormier, John Brock, A. H. Sallenger, C. Wayne Wright, David B. Nagle, Saisudha Vivekanandan, Xan Yates, Emily S. Klipp
ATM Coastal Topography-Louisiana, 2001: UTM Zone 15 (Part 1 of 2)
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 datase
Authors
Xan Yates, Amar Nayegandhi, John Brock, A. H. Sallenger, Emily S. Klipp, C. Wayne Wright
Filter Total Items: 32
Coastal Topography-Anegada, British Virgin Islands, 2014
These datasets provide lidar-derived topography for Anegada and a portion of the submerged environs. Elevation measurements were acquired on January 21, 2014 by an Optech Orion M300, and on March 19-20, 2014 by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B).
The authors acknowledge Emily Klipp, Chris Pali, Virgil Rabine, Rudy Troche, and Wayne Wright, all formerly o
Coastal Topography-Fire Island, New York, 07 May 2012
Lidar-derived bare-earth topography Digital Elevation Model (DEM) mosaic and classified point-cloud datasets for Fire Island, New York, were produced from remotely sensed, geographically referenced elevation measurements collected on May 7, 2012.
EAARL Coastal Topography-Assateague Island National Seashore, Maryland and Virginia, 2002
These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in collaboration with the National Park Service, provide lidar-derived first-surface and bare-earth topography for Assateague Island National Seashore, Maryland and Virginia. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) during September 2002.
EAARL-B Topography-Suncook River, New Hampshire, 5-6 November 2013: Seamless (Bare Earth and Submerged)
This point-cloud dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for a portion of the Suncook River in New Hampshire. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on November 5 and 6, 2013, in cooperation wi
EAARL Coastal Topography-Chandeleur Islands, Louisiana, 4-5 September 2010: Seamless (Bare Earth and Submerged)
This XYZ dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for the Chandeleur Islands in Louisiana. Elevation measurements were acquired by the first-generation Experimental Advanced Airborne Research Lidar (EAARL) on September 4 and 5, 2010. The data were collected as part of a se
Coastal Topography-Assateague Island, Maryland and Virginia, Post-Hurricane Joaquin, 26 November 2015
Lidar-derived bare-earth topography Digital Elevation Model (DEM) mosaic and classified point-cloud datasets were produced from remotely sensed, geographically referenced elevation measurements collected post-Hurricane Joaquin on November 26, 2015.
EAARL-B Topography-Big Thicket National Preserve: Canyonlands and Upper Neches River Corridor Units, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Canyonlands and Upper Neches River Corridor Units of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 11,
EAARL-B Topography-Big Thicket National Preserve: Menard Creek Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Menard Creek Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 21 and 22, 2014, in coopera
EAARL Coastal Topography-Chandeleur Islands, Louisiana, 12-13 February 2011: Seamless (Bare Earth and Submerged)
This XYZ dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for the Chandeleur Islands in Louisiana. Elevation measurements were acquired by the first-generation Experimental Advanced Airborne Research Lidar (EAARL) on February 12 and 13, 2011. The data were collected as part of a s
EAARL-B Topography-Big Thicket National Preserve: Lower Neches River Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Lower Neches River Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 11, 15, 17, 18, 19, 2
EAARL-B Topography-Big Thicket National Preserve: Little Pine Island Bayou Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Little Pine Island Bayou Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 15, 21, 22, 26,
EAARL-B Topography-Big Thicket National Preserve: Big Sandy Creek Corridor Unit, Texas, 2014
These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Big Sandy Creek Corridor Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 19, 21, 22, 29, and 30,
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*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government