Landsat and LiDAR-Derived Canopy Height Metrics for White Mountain National Forest - 2011

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Earth Systems Research Center, University of New Hampshire
Publication_Date: 20220101
Title:
Landsat and LiDAR-Derived Canopy Height Metrics for White Mountain National Forest - 2011
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. Landsat data were collected in 2014. LiDAR data were collected in 2010 and 2012.
Purpose:
This dataset combines Landsat reflectance data and LiDAR crown height data in a polygon format. Data represent portions of White Mountain National Forest, in central New Hampshire, USA.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20101101
Ending_Date: 20141003
Currentness_Reference:
This dataset represents portions of White Mountain National Forest surrounding Mt Moosilauke in central New Hampshire, USA.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.995192
East_Bounding_Coordinate: -71.652712
North_Bounding_Coordinate: 44.161722
South_Bounding_Coordinate: 43.893710
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: elevation
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: LiDAR, Landsat, elevation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword:
United States, New England, Northeast, New Hampshire, White Mountain National Forest
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
Data_Quality_Information:
Logical_Consistency_Report: Polygon topology exists.
Completeness_Report: Data are complete for the study area.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20180719
Title: Landsat 8 Operational Land Imager data
Geospatial_Data_Presentation_Form: remote-sensing image
Other_Citation_Details: Product ID: LC08_L1TP_013029_20141003
Type_of_Source_Media: onLine
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20141003
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: OLI
Source_Contribution:
Landsat 8 Operational Land Imager Dataset (OLI), used as basis for image segmentation
Source_Information:
Source_Citation:
Citation_Information:
Originator: Earth Systems Research Center
Publication_Date: 2021
Title: LiDAR-Derived Normalized Digital Surface Model - NH
Type_of_Source_Media: onLine
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20110506
Ending_Date: 20180524
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: nDSM
Source_Contribution:
LiDAR-Derived Normalized Digital Surface Model represents a 2-meter resolution LiDAR-derived normalized Digital Surface Model (nDSM) or Canopy Height Model (CHM) for New Hampshire. It was derived from a statewide LAS Dataset which comprised 8 separate LiDAR collections that covered the state as of January, 2020. The LAS Dataset was used as input to the ArcGIS "LAS Dataset to Raster" geoprocessing tool which converted the LAS first return values to raster values in the output data set. Subsequent processing subtracted the corresponding "bare earth" surface values to produce estimated feature height. It is recognized that this is a simplistic approach to the challenge of estimating LiDAR-based first return heights. Users should recognize this and keep it in mind when using the data. This dataset comprises elevation values from the following years: 2011 2012 2014 2016 2018
Process_Step:
Process_Description:
The eCognition software (version 10.1, Trimble, Inc.) was used to generate image objects to depict landscape features based on reflectance values from the Landsat 8 Operational Land Imager (OLI) and LiDAR derived canopy height measures (nDSM). The eCognition multiresolution segmentation algorithm was used with the following settings to create the image objects; Scale paramter: 50, Shape: 0.25, and Compactness: 0.75. Both OLI and nDSM were used as input to the algorithm and carried the same weight values. Processing was constrained to the area defined by the WMNF, 2011 LiDAR collection. The resulting image objects were subsequently exported to a shapefile.
Source_Used_Citation_Abbreviation: OLI, nDSM
Process_Date: 20211206
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Research Systems Research Center
Contact_Person: GRANIT Database Manager
Contact_Position: GRANIT Database Manager
Contact_Address:
Address_Type: physical
Address: Morse Hall, University of New Hampshire
City: Durham
State_or_Province: NH
Postal_Code: 03824
Country: US
Contact_Voice_Telephone: (603) 862-1214
Contact_Facsimile_Telephone: (603) 862-0188
Contact_Electronic_Mail_Address: granit@unh.edu
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 27123
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: New Hampshire
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999967
Longitude_of_Central_Meridian: -71.666667
Latitude_of_Projection_Origin: 42.500000
False_Easting: 984250.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000208
Ordinate_Resolution: 0.000208
Planar_Distance_Units: Survey Feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: WMNF2011Objects
Entity_Type_Definition: Umbagog image object polygons
Entity_Type_Definition_Source: Earth Systems Research Center
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: nDSM_MAX
Attribute_Definition:
Maximum pixel height above ground within the polygon, measure in meters.
Attribute_Definition_Source: Earth Systems Research Center
Attribute_Domain_Values:
Unrepresentable_Domain: Each value represents a unique elevation.
Attribute:
Attribute_Label: nDSM_MEAN
Attribute_Definition:
Mean pixel height above ground within polygon, measured in meters.
Attribute_Definition_Source: Earth Systems Research Center
Attribute_Domain_Values:
Unrepresentable_Domain: Each value represents a unique elevation.
Attribute:
Attribute_Label: nDSM_MIN
Attribute_Definition:
Minimum pixel height above ground within the polygon, measured in meters.
Attribute_Definition_Source: Earth Systems Research Center
Attribute_Domain_Values:
Unrepresentable_Domain: Each value represents a unique elevation.
Attribute:
Attribute_Label: nDSM_SD
Attribute_Definition:
Standard deviation of pixel heights within the polygon, measured in meters.
Attribute_Definition_Source: Earth Systems Research Center
Attribute_Domain_Values:
Unrepresentable_Domain: Each value represents a unique elevation.
Attribute:
Attribute_Label: Shape_Leng
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: Shape_Area
Attribute_Definition: Area of feature in internal units squared.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Research Systems Research Center
Contact_Person: GRANIT Database Manager
Contact_Position: GRANIT Database Manager
Contact_Address:
Address_Type: physical
Address: Morse Hall, University of New Hampshire
City: Durham
State_or_Province: NH
Postal_Code: 03824
Country: US
Contact_Voice_Telephone: (603) 862-1214
Contact_Facsimile_Telephone: (603) 862-0188
Contact_Electronic_Mail_Address: granit@unh.edu
Distribution_Liability:
Digital data in NH GRANIT represent the efforts of the contributing agencies to record information from the cited source materials. Research Systems Research Center (CSRC), under contract to the NH Office of State Planning (OSP), and in consultation with cooperating agencies, maintains a continuing program to identify and correct errors in these data. OSP, CSRC, and the cooperating agencies make no claim as to the validity or reliability or to any implied uses of these data.
Metadata_Reference_Information:
Metadata_Date: 20220119
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Research Systems Research Center
Contact_Person: GRANIT Database Manager
Contact_Position: GRANIT Database Manager
Contact_Address:
Address_Type: physical
Address: Morse Hall, University of New Hampshire
City: Durham
State_or_Province: NH
Postal_Code: 03824
Country: US
Contact_Voice_Telephone: (603) 862-1214
Contact_Facsimile_Telephone: (603) 862-0188
Contact_Electronic_Mail_Address: granit@unh.edu
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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