Aboveground live forest biomass Mg/ha dry weight

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Eileen Helmer, Thomas Brandeis
Publication_Date: 20040609
Title: Aboveground live forest biomass Mg/ha dry weight
Edition: 2nd
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: San Juan, Puerto Rico
Publisher: USFS IITF-SRS-RSAC
Description:
Abstract:
Aboveground live forest biomass for the island of Puerto Rico in units of Metric tons per hectare dry weight. Model uses only plots with 4 subplots forested (N=53). Forest defined by forest/nonforest map with classification model that defined forest as plots with 1, 2, 3 or 4 subplots forested (N=165). Model average error 32.2 Mg/ha, average relative error 0.51, correlation coefficient 0.92. Model error as estimated by 10-fold cross validation is 65 Mg/ha, relative absolute error is 1.02 and model correlation coefficient is 0.29.

Purpose:
Second edition national forest aboveground live forest biomass mapping effort by USFS FIA Remote Sensing Band
Supplemental_Information:
List of layers used and references provided in excel file "layers_usedxscale.xls". Biomass estimates use a combination of equasions referenced in unpublished manuscript by T. Brandeis and include dry forest equation in Brown et al. 1989, moist forest equation in Brown et al. 1989 that includes height, and second wet forest equation in Weaver and Gillespie 1992.

***** Spatial Reference Information (Beg) *****

Projection Parameters UL_X_COORDINATE: 58500.000000 UL_Y_COORDINATE: 80000.000000 LR_X_COORDINATE: 290500.000000 LR_Y_COORDINATE: -7000.000000 PIXEL_WIDTH: 250.000000 PIXEL_HEIGHT: 250.000000 MAP_UNITS: meters PROJECTION_NAME: Lambert Conformal Conic (This projection is identical to NAD 27 State Plane Coordinate System Zone Numbers 5201 and 6001) SPHEROID_NAME: Clarke 1866 DATUM NAME: NAD27 LATITUDE OF FIRST STANDARD PARALLEL: 18.033333333 LATITUDE OF SECOND STANDARD PARALLEL: 18.433333333 LONGITUDE OF CENTRAL MERIDIAN: -66.433333333 LATITUDE OF ORIGIN OF PROJECTION: 17.83333333 FALSE EASTING AT CENTRAL MERIDIAN: 152400.30480061

SPHEROID_NAME: Clarke 1866 SEMI_MAJOR_AXIS: 6378206.400000 SEMI_MINOR_AXIS: 6356583.800000 E_SQUARED: 0.006769 RADIUS: 6370997.240633

Spatial Information Raster: Number of Columns: 929 Number of Rows: 349 Pixel Resolution (m): 250 Data Type: byte

***** Spatial Reference Information (End) *****

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010101
Ending_Date: 20030202
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -67.3228
East_Bounding_Coordinate: -65.13
North_Bounding_Coordinate: 18.5542
South_Bounding_Coordinate: 17.7694
Keywords:
Theme:
Theme_Keyword_Thesaurus: forest biomass
Theme_Keyword: forest biomass
Theme_Keyword: tropical forest
Theme_Keyword: carbon sequestration
Theme_Keyword: forest carbon budget
Theme_Keyword: carbon storage
Theme_Keyword: carbon
Theme_Keyword: carbono
Theme_Keyword: carbono
Theme_Keyword: carbon dioxide
Theme_Keyword: bióxido de carbono
Theme_Keyword: forest
Theme_Keyword: bosque
Theme_Keyword: forests
Theme_Keyword: bosques
Theme_Keyword: Remote Sensing
Theme_Keyword: percepción remota
Theme_Keyword: sensoreamento remoto
Theme_Keyword: carbon
Theme_Keyword: carbono
Theme_Keyword: carbono
Theme_Keyword: carbon dioxide
Theme_Keyword: bióxido de carbono
Theme_Keyword: forest
Theme_Keyword: bosque
Theme_Keyword: forests
Theme_Keyword: bosques
Theme_Keyword: Remote Sensing
Theme_Keyword: percepción remota
Theme_Keyword: sensoreamento remoto
Place:
Place_Keyword_Thesaurus: Puerto Rico
Place_Keyword: Puerto Rico
Temporal:
Temporal_Keyword_Thesaurus: 2002
Temporal_Keyword: 2002
Access_Constraints: No access contraints.
Use_Constraints:
Appropriate for use only at broad scales. Data should be cited as referenced as follows: USFS FIA Remote Sensing Band and collaborators. 2004. U.S. forest carbon pools in woody biomass from satellite imagery and inventory data. In Review.

back to top



Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster

back to top



Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Eileen H. Helmer, Ph. D.
Contact_Organization:
International Institute of Tropical Forestry, USDA Forest Service
Contact_Address:
Address_Type: Mailing and Physical Address
Address:
1201 Calle Ceiba Jardín Botánico Sur
City: Río Piedras
State_or_Province: Puerto Rico
Postal_Code: 00926-1119
Country: USA
Contact_Voice_Telephone: 970-221-5888
Contact_Facsimile_Telephone: 970-498-1212
Contact_Electronic_Mail_Address: ehelmer@fs.fed.us
Distribution_Liability:
Neither IITF nor SRS nor its staff assume any liability for the accuracy or content of this map

back to top



Metadata_Reference_Information:
Metadata_Date: 20040609
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Eileen H. Helmer, Ph. D.
Contact_Organization:
International Institute of Tropical Forestry, USDA Forest Service
Contact_Address:
Address_Type: Mailing and Physical Address
Address:
1201 Calle Ceiba Jardín Botánico Sur
City: Río Piedras
State_or_Province: Puerto Rico
Postal_Code: 00926-1119
Country: USA
Contact_Voice_Telephone: 970-221-5888
Contact_Facsimile_Telephone: 970-498-1212
Contact_Electronic_Mail_Address: ehelmer@fs.fed.us
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

back to top