5000
150000000
2022-03-16
19275900
2022-03-17
14:40:59.61
editor:esri.dijit.metadata.editor
1.0
ISO 19139 Metadata Implementation Specification
ISO19139
false
FALSE
2022-02-02
15270600
002
ADS2021
0.000
33962.687300
1429189.709300
804770.399000
1885938.996600
1
Projected
GCS_North_American_1983
NAD_1983_Alaska_Albers
Linear Unit: Meter (1.000000)
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dataset
1647556650960r9542697331304688
Karen Hutten
USDA Forest Service
Aerial Survey Program Manager
2022-02-22
14:37:30.30
Simple
FALSE
0
TRUE
FALSE
ADS2021
<div style='text-align:Left;'><div><div><p><span>This forest health dataset includes both polygon and point data from the current year . Points have a buffered area based on tree number. Surveyors from the Alaska Division of Forestry and USDA Forest Service - Forest Health Protection document insect, disease, and abiotic damage in the forest from about 1000 feet altitude using a digital mobile sketch-mapping tablet and software. The aerial survey covers about 15% of the forests statewide each year. Note that much of the forest damage documented during these surveys does not typically result in tree or shrub mortality. </span><span /><span>Aerial survey data disclaimer: USDA Forest Service - Forest Health Protection and the Alaska Division of Forestry make every attempt to accurately identify and locate forest damage from the air. A very small percentage of the mapped data can be ground-checked and it is possible that errors in the data exist. These data are offered 'as is'.</span></p></div></div></div>
This dataset represents forest damage observed in Alaska during the current year's Aerial Detection Survey (ADS). Surveys are conducted jointly by the Alaska Division of Forestry and USDA Forest Service - Forest Health Protection to document insect, disease, and abiotic damage as part of a forest health monitoring program.
USDA Forest Service and Alaska Division of Forestry staff
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595
AnnualForest HealthADSinsectdiseasedamage
forest health
aerial survey
insect and disease
1
-153.436035
-123.754483
55.026565
66.929299
Karen Hutten
USDA Forest Service
Aerial Survey Program Manager
Other Constraints
Other Constraints
Other Constraints
Other Constraints
Other Constraints
Other Constraints
0.000
File Geodatabase Feature Class
0
ADS2021
Vector polygon feature class
Esri
Feature Class
0
OBJECTID
OBJECTID
Internal feature number.
Esri
OID
4
0
0
Sequential unique whole numbers that are automatically generated.
SHAPE
AREA_TYPE
Feature geometry
Esri
Geometry
0
0
0
Coordinates defining the features.
LABEL
LABEL
Quick Key label indicating the agent, host, and percent of area within the polygon that is affected. The code format is: DCA-HOST-PCT_AFFECTED.
FHAAST (Forest Health Assessment and Applied Sciences Team) and expanded by R10 FHP staff
String
50
0
0
A code with many possible combinations.
HOST
HOST
Host species common name or host group names that is showing damage.
FHAAST and expanded by R10 staff
String
50
0
0
Several possible hosts or host combinations.
DCA
DCA
Damage causing agent common name and code number.
FHAAST (Forest Health Assessment and Applied Sciences Team) and expanded by R10 staff
String
50
0
0
Any of several agent-host-percentage level combinations.
COLLECTION
COLLECTION
DMSM collection mode: ground or aerial survey (additional mode options may include: boat survey, satellite-based remote sensing, scan and sketch with high-resolution imagery).
FHAAST (Forest Health Assessment and Applied Sciences Team) and expanded by R10 staff
String
50
0
0
aerial survey or ground survey mode unless a different mode is manually added.
DAMAGE_ID
DAMAGE_ID
A unique ID code to identify the footprint area feature for a polygon or point.
FHAAST (Forest Health Assessment and Applied Sciences Team) and expanded by R10 staff
String
50
0
0
Unique identifier of numbers and letters.
CREATED_DATE
CREATED_DATE
Date feature created.
FHAAST (Forest Health Assessment and Applied Sciences Team)
Date
8
0
0
date
AREA_TYPE
AREA_TYPE
Original feature geometry: point or polygon.
R10 staff
String
10
0
0
point or polygon
ACRES
ACRES
Acres calculated from Albers equal area projection.
FHAAST (Forest Health Assessment and Applied Sciences Team)
Double
8
0
0
The calculated area in acres.
Shape_Length
Shape_Length
Length of feature in internal units.
Esri
Double
8
0
0
Positive real numbers that are automatically generated.
DAMAGE_TYPE
DAMAGE_TYPE
Damage type name. For defoliated trees this includes the percent of leaves or needles that have been defoliated on affected trees.
FHAAST (Forest Health Assessment and Applied Sciences Team) and expanded by R10 staff
String
50
0
0
Any of several options including but not limited to: mortality, topkill, branch flagging, and defoliation of various defined amounts.
PCT_AFFECTED
PCT_AFFECTED
Percent affected range - percent of live and standing dead trees within the area that are damaged or recently dead. Only for records originating as polygons.
FHAAST (Forest Health Assessment and Applied Sciences Team) and expanded by R10 staff
String
50
0
0
A percentage range from very light to very severe. Records that originated as points will have NA for this field.
NUMBER_OF_TREES
NUMBER_OF_TREES
Tree count range. Only for records originally collected as points.
FHAAST (Forest Health Assessment and Applied Sciences Team) and expanded by R10 staff
String
10
0
0
One of several possible number ranges including but not limited to: 1, 2-5, 6-15. Records originating as polygons will have NA for this field.
DAMAGE3_CODE
DAMAGE3_CODE
A 3- or 4-letter code used to identify the active agent.
R10 staff
String
5
0
0
Codeset identified elsewhere that may be added to as new agents are detected or identified.
SHAPE_Area
Shape_Area
Area of feature in internal units squared.
Esri
Double
8
0
0
Positive real numbers that are automatically generated.
EPSG
6.12(9.3.0.0)