Bering Land Bridge Lake Classification; Seward Peninsula, Alaska, 2012-2016

This study focuses on a 67 attribute lake cover classification scheme covering the Bering Land Bridge area of the Seward Peninsula, Alaska. The GIS dataset consists of 5170 lakes (which were extracted from a 5m resolution ifSAR/orthophoto image) and provides information on lake morphometry, hydrologic connectivity, surface area dynamics, surrounding terrestrial ecotypes, bedfast percentage, and other important conditions. The Seward Peninsula lake habitat study classification system provides lake specific information for a coastal peninsula area that will guide research and aid in the management of the natural environment.

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Attribute Table
Entity_Type_Definition:

Table containing attribute information associated with the vector data.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: FID
Attribute_Definition:

ESRI system generated row identifier for a geospatial object in a Shapefile formatted data set.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 5169
Attribute_Units_of_Measure: N/A

Attribute:

Attribute_Label: Id
Attribute_Definition:

Manually generated static unique identifier for each polygon feature.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 5170
Attribute_Units_of_Measure: N/A

Attribute:

Attribute_Label: Perimeter
Attribute_Definition: Lake perimeter in kilometers.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.504999999983
Range_Domain_Maximum: 36.2149999999
Attribute_Units_of_Measure: Kilometers

Attribute:

Attribute_Label: Area
Attribute_Definition: Lake surface area in square kilometers.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.01000625
Range_Domain_Maximum: 21.23495625
Attribute_Units_of_Measure: Kilometers

Attribute:

Attribute_Label: Acres
Attribute_Definition: Lake surface area in acres.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.4725982233
Range_Domain_Maximum: 5247.27196459
Attribute_Units_of_Measure: Acres

Attribute:

Attribute_Label: Hectares
Attribute_Definition: Lake surface area in hectares.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.000625
Range_Domain_Maximum: 2123.495625
Attribute_Units_of_Measure: Hectares

Attribute:

Attribute_Label: AKNHP_Land
Attribute_Definition:

Most common landcover type within a 90m buffer around each lake as derived from the AKNHP landcover file.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unknown

Attribute:

Attribute_Label: NPS_Landco
Attribute_Definition:

Most common landcover type within a 90m buffer around each lake as derived from NPS landcover data. Note that this data does not cover every lake within our study area, 202 lakes do not have NPS landcover data.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: {Null Value / Empty Field Entry}
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Coastal Barrens
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Coastal Dry Crowberry Dwarf Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Coastal Dry Dunegrass Meadow
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Coastal Loamy Wet Brackish Sedge-Grass Meadow
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Coastal Water
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Lowland Acidic Ericaceous Shrub Bog
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Lowland Circumacidic Sedge Fen
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Lowland Lake
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Lowland Moist Dwarf Birch-Ericaceous-Willow Low Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Lowland Moist Sedge-Dryas Meadow
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Lowland Organic-rich Wet Circumacidic Willow Low Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Riverine Gravelly Moist Circumalkaline Barrens
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Riverine Loamy Moist Alder or Willow Tall Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Riverine Loamy Moist Circumacidic Birch-Willow Low Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Riverine Water
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Upland Loamy Moist Circumalkaline Willow Low Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Upland Moist Dwarf Birch-Ericaceous-Willow Low Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Upland Organic-rich Moist Acidic Dwarf Birch-Tussock Shrub
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Upland Rocky-loamy Moist Alkaline Sedge-Dryas Meadow
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Sum_Hectar
Attribute_Definition:

Sum of surface area of spatially corresponding NHD lakes in hectares.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 2123.9
Attribute_Units_of_Measure: Hectares

Attribute:

Attribute_Label: NHD_Id
Attribute_Definition:

Unique lake identifier provided by NHD. Note that features who have an NHD_Id of 999 (manually changed) have zero NHD lakes within and features who have an NHD_Id of 9 (manually changed) have more than 1 lakes within.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 9
Range_Domain_Maximum: 904812
Attribute_Units_of_Measure: N/A

Attribute:

Attribute_Label: Elev_m
Attribute_Definition: Mean elevation of the lake.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.175
Range_Domain_Maximum: 109.7
Attribute_Units_of_Measure: Meters

Attribute:

Attribute_Label: Latitude
Attribute_Definition: Lake centroid in NAD83.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -168.118852141723
Range_Domain_Maximum: -163.069072276674
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: Longitude
Attribute_Definition: Lake centroid in NAD83.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 65.5506199445535
Range_Domain_Maximum: 66.5922276268505
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: Shape_ind
Attribute_Definition:

Shore complexity measurement for each feature. Equal to the perimeter divided by four times the square root of the area in square kilometers. The more complex a shoreline is the higher the number is.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.25390887260437
Range_Domain_Maximum: 10.8003549575806
Attribute_Units_of_Measure: N/A

Attribute:

Attribute_Label: Area_Change
Attribute_Definition:

The change in area of the lake. Calculated by subtracting the Sum_Hectar from Hectares. A negative number indicates the lake drained and a positive number indicates it filled/grew.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -529.36249999999
Range_Domain_Maximum: 93.2637500001
Attribute_Units_of_Measure: Hectares

Attribute:

Attribute_Label: Area_Perce
Attribute_Definition:

Percent change from the NHD lakes Sum_Hectar to the derived hydrology lake surface area in Hectares. Calculated by dividing Hectares by Area_Change and multiplying by 100.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -27962.305295717
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: Connectivi
Attribute_Definition:

Number of intersections a lake has with streams that have a contribution of 1 hectare.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 11

Attribute:

Attribute_Label: Grad_1000m
Attribute_Definition:

Gradient calculation within each lake feature’s 1000m buffer. Calculated by subtracting the Elev_m from the minimum elevation within the 1000m buffer.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -10006.912
Range_Domain_Maximum: 38.867
Attribute_Units_of_Measure: N/A

Attribute:

Attribute_Label: Grad_100m
Attribute_Definition:

Gradient calculation within each lake feature’s 100m buffer. Calculated by subtracting the Elev_m from the minimum elevation within the 100m buffer.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -15.351
Range_Domain_Maximum: 0.565
Attribute_Units_of_Measure: N/A

Attribute:

Attribute_Label: Regim_1995
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1995. Determined by looking at SAR data for that year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: NoData
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Regim_2000
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2000. Determined by looking at SAR data for that year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: NoData
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Regim_2010
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2010. Determined by looking at SAR data for that year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: NoData
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: BFpcnt1995
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1995. 333 indicates NoData.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: BFpcnt2000
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2000. 333 indicates NoData.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: BFpcnt2010
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2010. 333 indicates NoData.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smReg_1992
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1992. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_1993
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1993. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_1994
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1994. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_1995
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1995. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_1996
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1996. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_1997
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1997. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_1998
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1998. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_1999
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 1999. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2000
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2000. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2002
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2002. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2003
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2003. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2004
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2004. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2005
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2005. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2006
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2006. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2007
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2007. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2008
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2008. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2009
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2009. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smReg_2010
Attribute_Definition:

Indicates whether the lake feature has floating ice or bedfast ice in 2010. Determined by looking at SAR data for a smaller area of the study area, for the same year. A lake was considered floating ice if it had 5% or more floating ice pixels and it had 0.5% pixels higher than the floating ice mean.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 333
Enumerated_Domain_Value_Definition: Indicates no data.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Bedfast Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Floating Ice
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: smBFpt1992
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1992. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt1993
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1993. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt1994
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1994. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt1995
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1995. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt1996
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1996. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt1997
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1997. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt1998
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1998. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt1999
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 1999. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2000
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2000. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2002
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2002. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2003
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2003. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2004
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2004. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2005
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2005. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2006
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2006. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2007
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2007. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2008
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2008. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2009
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2009. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: smBFpt2010
Attribute_Definition:

Percentage of the lake feature that is filled with SAR data pixels that indicate bedfast ice, for the year 2010. 333 indicates NoData. This value is from looking at a smaller subset of the larger study area, a value of 333 indicates that the lake feature was not included in this smaller subset.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percentage

Attribute:

Attribute_Label: Connect_2
Attribute_Definition:

Indicates what type of stream connection the lake feature has. Based off of the Connectivi attribute, with its streams that have a contribution of 1 hectare

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Isolated
Enumerated_Domain_Value_Definition: This means the lake feature has zero streams connecting to it.
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Headwater
Enumerated_Domain_Value_Definition:

This means the lake feature has just one stream connecting to it.

Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Flow-Through
Enumerated_Domain_Value_Definition:

This means the lake feature has two or more streams connecting to it.

Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: SurfGeo
Attribute_Definition:

Indicates the majority surface geology for the lake feature area.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Beach
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Delta
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Eolian Silt
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Abandoned/Terrace
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Rocky Upland
Enumerated_Domain_Value_Definition: Undefined
Enumerated_Domain_Value_Definition_Source: Author defined

Bering Land Bridge Lake Classification; Seward Peninsula, Alaska, 2012-2016

Metadata: