Citation:
Citation_Information:
Originator: Earth Systems Research Center, University of New Hampshire
Publication_Date: 20211215
Title:
Landsat and LiDAR-Derived Canopy Height Metrics for Central and Southeast New Hampshire
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Durham, New Hampshire
Publisher: Earth Systems Research Center, University of New Hampshire
Other_Citation_Details: None
Online_Linkage:
Description:
Abstract:
This polygon dataset is derived from Landsat reflectance and LiDAR elevation data. The polygon boundaries represent "image objects" that were derived using eCognition image segmentation software. The software groups image pixels into contiguous segments based on spectral reflectance. The attributes for each polygon are then calculated from the LiDAR crown height layer. Attributes include maximum, minimum, and mean elevation above the ground and standard deviation within each polygon. Elevation is in meters. This dataset incorporates Landsat imagery collected in 2018 and 2020. LiDAR data were collected in 2011 and 2012.
Purpose:
This dataset combines Landsat reflectance data and LiDAR crown height data in a polygon format. Data represent portions of southeast New Hampshire, USA, including Rockingham County and portions of Belknap, Hillsborough, Merrimack, and Strafford Counties.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20111001
Ending_Date: 20200521
Currentness_Reference:
This dataset represents portions of southeast New Hampshire, including Rockingham County and portions of Belknap, Hillsborough, Merrimack, and Strafford Counties.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.941782
East_Bounding_Coordinate: -70.692710
North_Bounding_Coordinate: 43.512731
South_Bounding_Coordinate: 42.683238
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: LiDAR, Landsat, elevation
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: environment
Theme_Keyword: elevation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States, New England, Northeast, New Hampshire
Access_Constraints: None
Use_Constraints:
Users must assume responsibility to determine the appropriate use of these data. Because of the nature of the source imagery (30m pixels), it is not recommended that the data be used at scales greater than 1:60,000.
Data_Set_Credit:
These data were developed by NH GRANIT using funding from the New Hampshire Space Grant Consortium.
Native_Data_Set_Environment: Esri ArcGIS 10.9.0.32739