Citation:
Citation_Information:
Originator: Earth Systems Research Center, University of New Hampshire
Publication_Date: 20220101
Title:
Landsat and LiDAR-Derived Canopy Height Metrics for Umbagog National Wildlife Refuge and Northern 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 incorporated Landsat
imagery collected in 2017 and 2018. LiDAR data were collected between November 2016 and May 2018.
Purpose:
This dataset combines Landsat reflectance data and LiDAR crown height data in a polygon format. Data represent portions of northeastern
New Hampshire, USA.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20161101
Ending_Date: 20180617
Currentness_Reference:
This dataset represents portions of northeast New Hampshire, from the vicinity of Umbagog National Wildlife Refuge south to the town of
Freedom, NH, including portions of the White Mountain National Forest.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.734434
East_Bounding_Coordinate: -70.989167
North_Bounding_Coordinate: 45.187891
South_Bounding_Coordinate: 43.800944
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: elevation
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: LiDAR, Landsat
Place:
Place_Keyword_Thesaurus: None
Place_Keyword:
United States, New England, Northeast, New Hampshire, Umbagog National Wildlife Refuge
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