EMAP-West Soil / Landform Metrics

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: US EPA/ORD/NERL/ESD Landscape Ecology Branch

Publication_Date: Unknown

Title: wemaphuc8_slmetrics

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: N/A

Description:

Abstract:

Derived from 1:250,000-scale USGS HUC boundaries, 8-digit hierarchical

Purpose:

8-digit hydrologic unit codes (catalog units) for the EMAP-West states, including a suite of soil and landform metrics for use in landscape ecology studies.

Supplemental_Information:

SOIL AND LANDFORM METRIC DESCRIPTIONS:

awc|STATSGO weighted-average soil available water capacity expressed in inches of water per inch of soil

bd|STATSGO weighted-average soil bulk density expressed in megagrams per cubic meter of the <2-mm soil fraction

bldr|STATSGO weighted-average soil boulders fraction (> 250-mm and < 4000-mm diameter) using approximate EMAP physical habitat substrate criteria, expressed as percent by weight

caco3|STATSGO weighted-average soil calcium carbonate equivalent expressed as percent by weight of the <2-mm soil fraction

cbbl|STATSGO weighted-average soil cobbles fraction (> 75-mm and < 250-mm diameter) using approximate EMAP physical habitat substrate criteria, expressed as percent by weight

cgrvl|STATSGO weighted-average soil coarse gravel fraction (> 5-mm and < 75-mm diameter) using approximate EMAP physical habitat substrate criteria, expressed as percent by weight

clay|STATSGO weighted-average USDA soil clay fraction (< 0.002-mm diameter) expressed as percent by weight of the <2-mm soil fraction

fgrvl|STATSGO weighted-average soil fine gravel fraction (> 2-mm and < 5-mm diameter) using approximate EMAP physical habitat substrate criteria, expressed as percent by weight

fns|STATSGO weighted-average soil fines fraction (< 0.075-mm diameter) using approximate EMAP physical habitat substrate criteria, expressed as percent by weight

gypsum|STATSGO weighted-average soil gypsum content expressed as percent by weight of the <20-mm soil fraction

moisture|SEDMOD weighted-average topographic soil moisture index

om|STATSGO weighted-average soil organic matter content expressed as percent by weight of the <2-mm soil fraction

perm|STATSGO weighted-average soil permeability rate expressed as inches per hour

plancurve|SEDMOD weighted-average 6*std range of slope planform curvature (perpendicular to slope) expressed in centimeters

profcurve|SEDMOD weighted-average 6*std range of slope profile curvature (parallel to slope) expressed in centimeters

rough|SEDMOD weighted-average Mannings' n surface roughness coefficient

rsp|STATSGO weighted-average range site production expressed in pounds per acre per year

rusle_a_khy|RUSLE weighted-average gross soil erosion (A value) computed on a cell-by-cell area basis, expressed as kilograms/hectare/year

rusle_c|RUSLE weighted-average effect of soil surface cover characteristics (C factor), computed from NRI data on a cell-by-cell area basis

rusle_k|RUSLE weighted-average effect of inherent soil surface erodibility (K factor), from STATSGO, computed on a cell-by-cell area basis

rusle_ls|RUSLE weighted-average effect of slope length and steepness (LS factor) computed iteratively from DEM data on a cell-by-cell area basis

rusle_p|RUSLE weighted-average effect of soil conservation practices (P factor) computed from NRI data on a cell-by-cell area basis

rusle_r|RUSLE weighted-average rainfall-derived erosivity (R factor), from PRISM 2-km grid, computed on a cell-by-cell area basis

salin|STATSGO weighted-average soil salinity expressed as millimhos per centimeter of electrical conductivity within the <2-mm soil fraction

sand|STATSGO weighted-average USDA soil sand fraction (0.05-mm to 2-mm diameter) expressed as percent by weight of the <2-mm soil fraction

sar|STATSGO weighted-average soil sodium absorption ratio of the <2-mm soil fraction

sedmod_khy|SEDMOD weighted-average net sediment delivery computed iteratively on a cell-by-cell area basis, expressed as kilograms/hectare/year

sils|Susceptibility/incidence of landslides from lithologic maps expressed as a weighted-average, normalized scale 1.0 to 3.0 (low to high)

smorph|Susceptibility for mass wasting based on slope morphology expressed as a weighted average, normalized scale 1.0 to 3.0 (low to high)

snd|STATSGO weighted-average soil sand fraction (> 0.075-mm and <2-mm diameter) using approximate EMAP physical habitat substrate criteria, expressed as percent by weight

sthk|STATSGO weighted-average soil thickness expressed in inches, i.e., depth to the shallower of a hardpan, rock layer, or 60 inches

strmprox|SEDMOD weighted-average distance proximity to stream riparian zone, expressed in meters; zero or null values represent sites where no stream was identified

surfclay|STATSGO weighted-average soil surface horizon USDA clay fraction expressed as percent by weight of the <2-mm soil fraction

tpis|Topographic position index for watershed stream zone; null values represent sites where no stream was identified

tpiw|Topographic position index for whole watershed

wei1|STATSGO weighted-average soil surface wind erodibility index expressed in tons per acre per year

wtdep|STATSGO weighted-average soil drainage expressed as depth to water table in feet

hydgrp|STATSGO weighted-average soil hydrologic group, from A through D with modifiers

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -126.409557

East_Bounding_Coordinate: -94.282147

North_Bounding_Coordinate: 49.650764

South_Bounding_Coordinate: 29.441237

Keywords:

Theme:

Theme_Keyword: EMAP-West

Theme_Keyword: watershed

Theme_Keyword: HUC

Theme_Keyword: hydrologic units

Theme_Keyword: metrics

Theme_Keyword: soil and landform

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Daniel T. Heggem

Contact_Organization: US EPA/ORD/NERL/ESD Landscape Ecology Branch

Contact_Position: Research Environmental Scientist

Contact_Address:

Address_Type: mailing address

Address: P.O. Box 93478

City: Las Vegas

State_or_Province: NV

Postal_Code: 89193-3478

Country: USA

Contact_Voice_Telephone: (702) 798-2366

Contact_Electronic_Mail_Address: heggem.daniel@epamail.epa.gov

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: Not presently available

Logical_Consistency_Report: Not presently available

Completeness_Report: Not presently available

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Not presently available

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: Not presently available

Lineage:

Process_Step:

Process_Description:

Original 250K HUC coverage was reprojected and built, then 8-digit HUCS were reselected which represent the EMAP-West state (CA, MT, ID, NV, AZ, UT, CO, WA, OR, WY, NM, ND, SD) contribution to the overall EMAP-West study area of 8-digit HUCs. The suite of soil and landform metric scripts and programs were run to produce HUC8-based metrics for use in landscape ecology studies.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Rick Van Remortel

Contact_Organization: Lockheed Martin Environmental Services

Contact_Position: Principal Scientist

Contact_Address:

Address_Type: mailing address

Address: 1050 E. Flamingo Road Suite E120

City: Las Vegas

State_or_Province: NV

Postal_Code: 89119

Country: USA

Contact_Voice_Telephone: (702) 897-3295

Contact_Electronic_Mail_Address: rvanremo@lmepo.com

Cloud_Cover: N/A

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 891

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 34.000000

Standard_Parallel: 46.000000

Longitude_of_Central_Meridian: -110.000000

Latitude_of_Projection_Origin: 31.000000

False_Easting: 0.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.004096

Ordinate_Resolution: 0.004096

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: wemaphuc8_slmetrics

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: AREA

Attribute:

Attribute_Label: PERIMETER

Attribute:

Attribute_Label: WESTHUC8_

Attribute:

Attribute_Label: WESTHUC8_I

Attribute:

Attribute_Label: HUC

Attribute:

Attribute_Label: REGION

Attribute:

Attribute_Label: SUBREGION

Attribute:

Attribute_Label: ACCTUNIT

Attribute:

Attribute_Label: HUCNUM

Attribute:

Attribute_Label: STATE

Attribute:

Attribute_Label: WEST_ID

Attribute:

Attribute_Label: ORDER_

Attribute:

Attribute_Label: ST_WSH_ID

Attribute:

Attribute_Label: AREA_KHA

Attribute:

Attribute_Label: CELLS

Attribute:

Attribute_Label: SILS

Attribute_Definition: Susceptibility / incidence of landslides

Attribute:

Attribute_Label: SMORPH

Attribute_Definition: Susceptibility for mass wasting based on slope morphology

Attribute:

Attribute_Label: TPIW

Attribute_Definition: Topographic position index for whole watershed

Attribute:

Attribute_Label: TPIS

Attribute_Definition: Wind erodibility index ( tons / ac / yr )

Attribute:

Attribute_Label: RUSLE_A_KH

Attribute_Definition: Topographic position index for watershed stream zone

Attribute:

Attribute_Label: RUSLE_R

Attribute_Definition: Rainfall-derived erosivity ( R factor )

Attribute:

Attribute_Label: RUSLE_K

Attribute_Definition: Soil surface erodibility ( K factor )

Attribute:

Attribute_Label: RUSLE_LS

Attribute_Definition: Slope length and steepness ( LS factor )

Attribute:

Attribute_Label: RUSLE_C

Attribute_Definition: Soil surface cover characteristics ( C factor )

Attribute:

Attribute_Label: RUSLE_P

Attribute_Definition: Soil conservation practices (P factor)

Attribute:

Attribute_Label: SEDMOD_KHY

Attribute_Definition: Net sediment delivery ( kg / ha / yr )

Attribute:

Attribute_Label: MOISTURE

Attribute_Definition: Topographic soil moisture index

Attribute:

Attribute_Label: PROFCURVE

Attribute_Definition: Profile slope curvature variability ( 6 * SD )

Attribute:

Attribute_Label: PLANCURVE

Attribute_Definition: Planform slope curvature variability ( 6 * SD )

Attribute:

Attribute_Label: STRMPROX

Attribute_Definition: Distance proximity to stream riparian zone ( m )

Attribute:

Attribute_Label: ROUGH

Attribute_Definition: Roughness coefficient

Attribute:

Attribute_Label: STHK

Attribute_Definition: Soil thickness ( in )

Attribute:

Attribute_Label: HYDGRP

Attribute_Definition: Soil hydrologic groups

Attribute:

Attribute_Label: WTDEP

Attribute_Definition: Depth to apparent water table ( ft )

Attribute:

Attribute_Label: SURFCLAY

Attribute_Definition: Surface clay fraction, USDA ( wt % )

Attribute:

Attribute_Label: OM

Attribute_Definition: Organic matter content ( wt % )

Attribute:

Attribute_Label: CACO3

Attribute_Definition: Calcium carbonate content ( wt % )

Attribute:

Attribute_Label: BD

Attribute_Definition: Bulk density ( g / cm3 )

Attribute:

Attribute_Label: AWC

Attribute_Definition: Available water capacity ( in / in )

Attribute:

Attribute_Label: PERM

Attribute_Definition: Permeability ( in / hr )

Attribute:

Attribute_Label: BLDR

Attribute_Definition: Boulders fraction ( wt % )

Attribute:

Attribute_Label: CBBL

Attribute_Definition: Cobbles fraction ( wt % )

Attribute:

Attribute_Label: CGRVL

Attribute_Definition: Coarse gravel fraction ( wt % )

Attribute:

Attribute_Label: FGRVL

Attribute_Definition: Fine gravel fraction ( wt % )

Attribute:

Attribute_Label: SND

Attribute_Definition: Sand fraction, EMAP ( wt % )

Attribute:

Attribute_Label: FNS

Attribute_Definition: Fines fraction ( wt % )

Attribute:

Attribute_Label: SAND

Attribute_Definition: Sand fraction, USDA ( wt % )

Attribute:

Attribute_Label: CLAY

Attribute_Definition: Clay fraction ( wt % )

Attribute:

Attribute_Label: GYPSUM

Attribute_Definition: Gypsum content ( wt % )

Attribute:

Attribute_Label: RSP

Attribute_Definition: Range site production ( lbs / ac / yr )

Attribute:

Attribute_Label: SALIN

Attribute_Definition: Soil salinity ( mmhos / cm )

Attribute:

Attribute_Label: SAR

Attribute_Definition: Sodium absorption ratio

Attribute:

Attribute_Label: WEI1

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Daniel T. Heggem

Contact_Organization: US EPA/ORD/NERL/ESD Landscape Ecology Branch

Contact_Position: Research Environmental Scientist

Contact_Address:

Address_Type: mailing address

Address: P.O. Box 93478

City: Las Vegas

State_or_Province: NV

Postal_Code: 89193-3478

Country: USA

Contact_Voice_Telephone: (702) 798-2366

Contact_Electronic_Mail_Address: heggem.daniel@epamail.epa.gov

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 23.633

Metadata_Reference_Information:

Metadata_Date: 20050413

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Daniel T. Heggem

Contact_Organization: US EPA/ORD/NERL/ESD Landscape Ecology Branch

Contact_Position: Research Environmental Scientist

Contact_Address:

Address_Type: mailing address

Address: P.O. Box 93478

City: Las Vegas

State_or_Province: NV

Postal_Code: 89193-3478

Contact_Voice_Telephone: (702) 798-2366

Contact_Electronic_Mail_Address: heggem.daniel@epamail.epa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile