Field observations for "A carbon monitoring system for mapping regional, annual aboveground biomass across the northwestern USA"

Metadata:

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Below you will find a list and description of the files available in this data publication.

DATA FILES (2)

1. \Data\PlotData.csv: Comma-delimited ASCII text file containing field plot information. (This file should be viewed in conjunction with \Data\TreeData.csv.)

Variables include:

PROJECT - Name of project which data are associated

STAND_ID - Unique identifier describing the stand. Most plots are treated as individual stands.

PLOT_ID - Optional identifier describing the plot

LIDAR_UNIT - Name of lidar unit where the plot lies

LIDAR_YEAR - Year the lidar were collected

PLOT_TYPE - Description of the plot layout. Either "Fixed_Area" which is circular or "Fixed_Area_FIA" which follows the Forest Inventory Analysis plot layout.

VARIANT - The two character FVS variant identification code. When equations, such as those for tree growth, mortality, and volume, are developed for a specific geographic area and imbedded in the FVS framework, the resulting model is called a geographic variant of FVS. Variants relevant to this dataset are: BM – Blue Mountains, CA – Inland California and Southern Cascades, CI – Central Idaho, IE – Inland Empire, NC – Klamath Mountains, PN – Pacific Northwest Coast, SO – South Central Oregon and Northeast California, WC – Westside Cascades.

INV_YEAR - Inventory year

LATITUDE - Latitude in decimal degrees

LONGITUDE - Longitude in decimal degrees

STATE - Federal Information Processing Series (FIPS) state code

COUNTY - FIPS county code

REGION - USFS Region code

FOREST - USFS Forest code

DISTRICT - USFS Forest District Code

LOCATION - USFS Location Code

PV_CODE - Potential vegetation code. Refer to appropriate variant overview (FVS website: https://www.fs.usda.gov/fvs/documents/guides.shtml).

PV_REF_CODE - Potential vegetation reference code for the PV_CODE. Refer to appropriate variant overview (FVS website: https://www.fs.usda.gov/fvs/documents/guides.shtml).

AGE - Stand age in years

ASPECT - Aspect in degrees

SLOPE - Slope in percent

ELEVFT - Elevation in feet

BASAL_AREA_FACTOR - Basal area factor. A positive value is interpreted as a basal area factor and a negative value is interpreted as the inverse of a large-tree fixed area plot.

INV_PLOT_SIZE - The inverse of the small-tree fixed area plot in acres

BRK_DBH - Breakpoint DBH in inches between large and small tree plots

NUM_PLOTS - Number of plots per stand

NONSTK_PLOTS - Number of non-stockable plots

SAM_WT - Sampling Weight used to compute the average yield tables and other weighted averages (Often represents the stand size in acres)

STK_PCNT - Stockable percent. A value entered in this field will override the calculation based on number of plots stockable versus total number of plots

DG_TRANS - Diameter growth translation code (0=inside-bark previous growth diameter increment, 1=diameter measurement at beginning of growth period, 2=inside-bark subsequent growth diameter increment, 3=diameter measurement at the end of growth period)

DG_MEASURE - Diameter growth measurement period in years

HTG_TRANS - Height growth translation code (0= previous growth height increment, 1=height measurement at beginning of growth period, 2= subsequent growth height increment, 3=height measurement at the end of growth period)

HTG_MEASURE - Height growth measurement period in years

MORT_MEASURE - Mortality measurement period in years

COMMENTS_1 - Optional comments entered by field crew

COMMENTS_2 - Optional comments entered by field crew

COMMENTS_3 - Optional comments entered by field crew

COMMENTS_4 - Optional comments entered by field crew



2. \Data\TreeData.csv: Comma-delimited ASCII text file containing individual tree information. (This file should be viewed in conjunction with \Data\PlotData.csv.)

Variables include:

PROJECT - Name of project which data are associated

STAND_ID - Unique identifier describing the stand. Most plots are treated as individual stands.

STANDPLOT_ID - Identifier describing the stand-plot combination

PLOT_ID - Plot identification code

TREE_ID - Tree identification code

TREE_COUNT - Number indicating the number of trees represented by the entry

HISTORY - Life status code: 0-5 are live trees, 6 and 7 died during mortality observation, 8 and 9 died before mortality observation period

SPECIES - Species code recorded as USDA plant code (USDA 2020). The following non-USDA plant codes are used: OH – Other hardwood species, OS – Other softwood species, and OT – Other tree species.

DBH - Diameter breast height in inches

DG - Incremental diameter growth in inches

HT - Height in feet

HTG - Incremental height growth in feet

HTTOPK – Height to top kill. When the top of a tree is dead, height to top kill is the height (in feet) to the point where the tree top was killed. CRRATIO - Crown ratio

DAMAGE1 - Damage code 1. Refer to Essential FVS for damage and severity codes

SEVERITY1 - Severity for damage code 1. Refer to Essential FVS for damage and severity codes

DAMAGE2 - Damage code 2. Refer to Essential FVS for damage and severity codes

SEVERITY2 - Severity for damage code 2. Refer to Essential FVS for damage and severity codes

DAMAGE3 - Damage code 3. Refer to Essential FVS for damage and severity codes

SEVERITY3 - Severity for damage code 3. Refer to Essential FVS for damage and severity codes

TREEVALUE - Tree value code. Tree Value Class Code: 1 for desirable, 2 for acceptable, 8 for non-stockable and any other number is interpreted as a live cull

AGE - Age of the tree record. SLOPE - Slope Percentage on the plot where the tree was located

ASPECT - Aspect in degrees on the plot where the tree was located PV_CODE - The potential vegetation code on the plot where the tree was located. Refer to appropriate variant overview in Dixon (2002). TOPOCODE - Topographic position code: 1=bottom, 2=lower, 3=mid slope, 4=upper slope, and 5=ridge top, on the plot where the tree was located

SITEPREP - Site preparation code: Site Preparation code 1=none, 2=mechanical, 3=burn, and 4=road cuts/road fills/stockable road beds, on the plot where the tree was located

PV_REF_CODE - Potential vegetation reference code for the PV_CODE. Refer to appropriate variant overview in Dixon (2002).

CONDID - FIA condition identifier

CANOPY_BASE_HT - Canopy base height in feet

COMMENTS_1 - Optional comments entered by field crew

COMMENTS_2 - Optional comments entered by field crew



SUPPLEMENTAL FILES (2)

1. \Supplements\ProjectSource.csv: \Supplements Comma-delimited ASCII text file containing a list of projects and the data source for these data.

Variables include:

PROJECT - Name of project which data are associated

DATA_SOURCE - Description of who collected or contributed the data


2. \Supplements\SpeciesCodes.csv: \Supplements Comma-delimited ASCII text file containing a list of the species codes used in these data files and the associated scientific name (USDA 2020).

Variables include:

SPECIES_CODE - Species code recorded as USDA plant code (USDA 2020). The following non-USDA plant codes are used: OH – Other hardwood species, OS – Other softwood species, and OT – Other tree species.

SCIENTIFIC_NAME - Scientific name associated with species code

Entity_and_Attribute_Detail_Citation:

Hudak, Andrew T.; Fekety, Patrick A.; Kane, Van R.; Kennedy, Robert E.; Filippelli, Steven K.; Falkowski, Michael J.; Tinkham, Wade T.; Smith, Alistair M.S.; Crookston, Nicholas L.; Domke, Grant M.; Corrao, Mark V.; Bright, Benjamin C.; Churchill, Derek J.; Gould, Peter J.; McGaughey, Robert J.; Kane, Jonathan T.; Dong, Jinwei. 2020. A carbon monitoring system for mapping regional, annual aboveground biomass across the northwestern USA. Environmental Research Letters. 15: 095003. https://doi.org/10.1088/1748-9326/ab93f9 and https://www.fs.usda.gov/research/treesearch/60805

U.S. Department of Agriculture, Forest Service, Forest Management Service Center. 2020. Forest Vegetation Simulator (FVS) user guides. Retrieved from https://www.fs.usda.gov/fvs/documents/guides.shtml

USDA, NRCS. 2020. The PLANTS Database (http://plants.usda.gov, 10 April 2020). National Plant Data Team, Greensboro, NC 27401-4901 USA.

Metadata_Reference_Information:

Metadata_Date: 20240418

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Andew T. Hudak

Contact_Organization: USDA Forest Service, Rocky Mountain Research Station

Contact_Position: Research Forester

Contact_Address:

Address_Type: mailing and physical

Address: 1221 South Main Street

City: Moscow

State_or_Province: ID

Postal_Code: 83843

Country: USA

Contact_Voice_Telephone: 208-883-2327

Contact_Electronic_Mail_Address: andrew.hudak@usda.gov

Contact Instructions: This contact information was current as of original publication date. For current information see Contact Us page on: https://doi.org/10.2737/RDS.

Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001.1-1999