DOI: https://doi.org/10.5069/G9XK8CG1 OT Collection ID: OT.022013.26918.1 OT Collection Name: West Swanzey, NH: Geomorphic Response to Dam Removal, Ashuelot River (2010) Short Name: NH10_Gartner Collection Platform: Airborne Lidar ---------------------------------------------------------- Download and Access Products: 1. Raster opentopoID: OTSDEM.022013.26918.1 Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.022013.26918.1 2. Point Cloud Data opentopoID: OTLAS.022013.26918.1 Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.022013.26918.1 ---------------------------------------------------------- Collection Overview: NCALM Project. PI: John Gartner, Dartmouth College. The survey area covers a 45 square kilometers along the Ashelot River, south of Keene and crossing West Swanzey, New Hampshire. Data were collected to quantify the geomorphic and sedimentological responses to dam removal. Repeat survey from 2011: West Swanzey, NH: Geomorphic Response to Dam Removal, Ashuelot River (2011)Publications associated with this dataset can be found at NCALM's Data Tracking Center Dataset Acknowledgement: Lidar data acquisition and processing completed by the National Center for Airborne Laser Mapping (NCALM - https://ncalm.cive.uh.edu). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-1043051. Dataset Citation: West Swanzey, NH: Geomorphic Response to Dam Removal, Ashuelot River (2010). Distributed by OpenTopography. https://doi.org/10.5069/G9XK8CG1 . Accessed: 2024-03-29 Use License: CC BY 4.0 Dataset Keywords: lidar Survey Date: 07/19/2010 Publication Date: 02/21/2013 ---------------------------------------------------------- Data Provider and Roles: 1. National Center for Airborne Laser Mapping Role: Collector Url: https://ncalm.cive.uh.edu/ 2. National Science Foundation Role: Funder Url: https://nsf.gov/ ---------------------------------------------------------- Total number of points: 591,734,630 pts Area: 45 km^2 Point Density: 13.15 pts/m^2 Classifications: Class 1 - Unclassified: 105,246,190 Class 2 - Ground: 91,613,903 Class 4 - Medium Vegetation: 390,029,667 Class 6 - Building: 4,774,905 Class 7 - Low Point (low noise): 68,213 Class 8 - Model Key/Reserved: 5 Class 9 - Water: 1,747 Coordinates System: Horizontal: NAD83 (CORS96) / UTM Zone 18N Meters [EPSG: 26918] Vertical: NAVD88 (GEOID 03) [EPSG: 5703] Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/NCALM/NH10_Gartner_report.pdf LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/NH10_Gartner.html ---------------------------------------------------------- Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.022013.26918.1&download=true Dataset Spatial Bounds: North: 42.9333653691945° South: 42.8096130171628° East: -72.2438425775152° West: -72.3796494026411°