USGS Home
USGS Home USGS Home
Contact USGS
Search USGS
 Alaska Geospatial Data Committee
spacer
spacer

akfordmg07v1

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: USDA Forest Service, Forest Health Protection, Region 10
Originator: Alaska Department of Natural Resources, Division of Forestry
Publication_Date: 11/2007
Title: akfordmg07v1
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Forest Insect & Disease Conditions in Alaska
Issue_Identification: akfordmg07
Publication_Information:
Publication_Place: Anchorage, AK
Publisher:
USDA Forest Service, S&PF, FHP - Alaska Division of Forest, Forest Health Program
Online_Linkage: <https://agdc.usgs.gov/data/projects/fhm/#K>
Description:
Abstract:
This data represents areas of forest damage due to insect infestation, disease, winter damage, flood, landslides, and windthrow. The information was collected, cooperatively by aerial surveys by both the USFS, Forest Health Protection (FHP) and ADNR, Div. of Forestry. Survey represent only a sample of the landscape and are conducted primarily in July and August so that pest "signatures" may be identified during the optimal period for symptom development of ocular estimation. The aerial survey is coordinated such that the maximum extent of recent bark beetle damage (fading trees) and insect defoliation (discoloration, foliage loss) patterns may be determined. Surveys are flown in Southeast Alaska, Southcentral Alaska and Interior Alaska.
Purpose:
This data is collected to monitor forest health for the State of Alaska (FS- R10) and to identify insect and some disease pest trends. Large scale positional accuracy and repeatability can not be duplicated due to the nature of aerial survey data collection. This data should be used as an initial identification of pest areas or landscape level planning but further surveys or ground checking is necessary for area planning or management. More specific delineation of pest damage boundaries (polygons) may be obtained by later ground assessments or approximation of several individual years of mapping data. Precise timing of the surveys for maximum symptom development is not always possible therefore, the aerial extent of damage generally cannot be fully mapped for all pests. Also, many pest symptoms are delayed from the time of actual damage so that visual symptoms do not appear for several months after the initial damage. In the case of some bark beetle damage, (e.g., spruce beetle) symptoms of "red-topped" or "fading red" trees do not show until the season after initial attack. Precise estimates of the extent damage often required a ground assessment to determine the extent of current season attacks. Also, some defoliator damage is not readily apparent from the air or occurs outside of the aerial survey window of time so that the actual extent (acreage) of damage cannot be accurately determined without extensive ground sampling.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 7/2007
Ending_Date: 8/2007
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -167.213127
East_Bounding_Coordinate: -122.860239
North_Bounding_Coordinate: 68.178222
South_Bounding_Coordinate: 54.651089
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: Forest
Theme_Keyword: Damage
Theme_Keyword: Pest
Theme_Keyword: Insect
Theme_Keyword: Disease
Theme_Keyword: Aerial
Theme_Keyword: Survey
Theme_Keyword: Spruce Beetle
Theme_Keyword: cedar decline
Theme_Keyword: spruce aphid
Theme_Keyword: health
Place:
Place_Keyword: Alaska
Place_Keyword: Anchorage
Place_Keyword: Fairbanks
Place_Keyword: Juneau
Place_Keyword: Forest
Stratum:
Stratum_Keyword: Land
Stratum_Keyword: forest
Temporal:
Temporal_Keyword: 2007
Temporal_Keyword: July
Temporal_Keyword: August
Temporal_Keyword: summer
Access_Constraints:
To ensure distribution of the most current public information, please refer requests for data or products to Forest Health Protection, State & Private Forestry, AK region USDA Forest Service.
Use_Constraints:
It is not recommended the data be used at a scale larger than 1:250000. Any hardcopies or published datasets utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way they are obligated to describe the types of modifications they have performed. User specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by USFS, State & Private Forestry or AK DNR.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dustin Wittwer
Contact_Organization: USDA Forest Service, State and Private Forestry
Contact_Position: Aerial Survey and GIS specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2770 Sherwood Lane, suite 2A
City: Juneau
State_or_Province: Alaska
Postal_Code: 99801
Country: USA
Contact_Voice_Telephone: 907 586 7971
Contact_Facsimile_Telephone: 907 586 7848
Contact_Electronic_Mail_Address: dwittwer@fs.fed.us
Hours_of_Service: 800-1600 AST
Contact_Instructions: See Distribution_Information
Browse_Graphic:
Browse_Graphic_File_Name: <https://agdc.usgs.gov/data/projects/fhm/#K>
Browse_Graphic_File_Description: Major damage
Data_Set_Credit:
USDA Forest Service, Forest Health Protection, Alaska Department of Natural Resources, Division of Forestry
Security_Information:
Security_Classification: Unclassified
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.2.1.1332

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy of forest damage is tested by visually comparing the source data with hard copy printouts or an interactive display. Survey specialist review processed data. Some data are ground checked but not formal accuracy reports are produced.
Logical_Consistency_Report:
Polygons were processed in ArcGIS. Overlaping plygons are not present.
Completeness_Report:
Surveys in Alaska are meandering surveys predominantly following drainages and shorelines. Approximately 1/4 to 1/3 of the state is surveyed each year. The flightline file represents the flight path. The extent of visibility is roughly 2 miles.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Digital information collected using GPS for tracking and polygon placement accuracy. Polygons are sketched onto a computer screen or paper maps (USGS 1:250,000 hardcopy or digital maps). Background reference data is.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: variable and unquantified
Horizontal_Positional_Accuracy_Explanation:
error is a subjective quantity, contributed to by GPS error, error in background data spatial reference and sketch mapping approximation
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Geospatial_Data_Presentation_Form: raster digital data
Source_Scale_Denominator: 1:250000
Type_of_Source_Media: computer program
Source_Time_Period_of_Content:
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Geolink
Source_Contribution:
Polygon information deliniated and attributed digitally at time of capture. USGS topographic-bathymetric series maps used as background with GPS real-time tracking. In some cases TM satellite imagery are used as reference background.
Process_Step:
Process_Description:
Data collected at time of capture. Transformed into ArcGIS 9.0 for editing and correcting. Multiple data sets were merged and projected to Albers equal area (AK), NAD 27. Point data was buffered 75 meters and merged with polygon layer. Multipart polygons were converted to single part. Overlapping polygons were dissected.
Process_Date: 10/2007
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dustin Wittwer
Contact_Organization: USDA Forest Service, State and Private Forestry
Contact_Position: Aerial survey and GIS specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2770 Sherwood Lane, Suite 2A
City: Juneau
State_or_Province: Alaska
Postal_Code: 99801
Country: USA
Contact_Voice_Telephone: 907 586 7971
Contact_Facsimile_Telephone: 907 586 7848
Contact_Electronic_Mail_Address: dwittwer@fs.fed.us
Process_Step:
Process_Description: Dataset copied.
Source_Used_Citation_Abbreviation:
C:\arcstuff\damage\damage04\output\export\R10_forest_damage_2004\r1004
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\DOCUME~1\dwittwer\LOCALS~1\Temp\xml809.tmp
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: F:\!special\aerialsurvey\as2005\akalbers\akfordmg05.shp.xml
Cloud_Cover: varies

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: 7072

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 55.000000
Standard_Parallel: 65.000000
Longitude_of_Central_Meridian: -154.000000
Latitude_of_Projection_Origin: 50.000000
False_Easting: 0.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: akfordmg07v1
Entity_Type_Definition: Polygon attributes
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: DAMAGE4
Attribute_Definition: damage agent with intensity
Attribute_Definition_Source: USFS, AK DNR
Attribute:
Attribute_Label: TPA
Attribute_Definition: trees per acre estimate
Attribute_Definition_Source: USFS, AK DNR
Attribute:
Attribute_Label: SURVEY_YR
Attribute_Definition: year surveyed
Attribute_Definition_Source: USFS, AK DNR
Attribute:
Attribute_Label: Acres
Attribute_Definition: Acres
Attribute_Definition_Source: USFS, AK DNR
Attribute:
Attribute_Label: damage3
Attribute_Definition: damage agent
Attribute_Definition_Source: USFS, AK DNR
Attribute:
Attribute_Label: NUM_TREES
Attribute_Definition: number of trees
Attribute_Definition_Source: USFS, AK DNR
Overview_Description:
Entity_and_Attribute_Overview:
Areas of damage are delineated on the base maps as polygons and labeled with an agent code and for some insects a severity code. Inherent in many agent codes is the host species. The first three letters of each polygon label identify the damage, causal agent, and host species. The fourth letter, if present, identifies severity. Acres for each polygon are rounded for display. Mortality agents/damage are also attributed with an estimate of the number of trees killed or a trees per acre killed.

Code AGENT OUT Out (island of no damage) ALD Alder defoliation ALR Alder leafroller ASF Alder sawfly LAT Large aspen tortrix ALM Aspen Leaf Miner ASD Aspen defoliation ALB Aspen leaf blight SMB Spear-marked black moth BAP Birch aphid BID Birch defoliation BLM Birch Leaf Miner BLR Birch leaf roller CDL Cedar decline COD Conifer defoliation CTB Conifer top breakage CLM Cottonwood leaf miner CLR Cottonwood Leafroller CWD Cottonwood defoliation CWW CWD and WID CLB Cottonwood leaf beetle WNT Winter damage FIR Fire damage FLO Flooding/high-water damage HTB Hardwood top breakage SUV Sunira Verberata HWD Hardwood defoliation HLO Hemlock looper HSF Hemlock sawfly HCK Hemlock canker LAS Larch sawfly LBM Larch budmoth LAB Larch beetle SLD Landslide/Avalanche WTH Windthrow/Blowdown POD Porcupine damage SPA Spruce aphid SNR Spruce needle rust SNC Spruce Needle Cast SNA Spruce needle aphid SBW Spruce budworm SBR Spruce broom rust IPS Ips engraver beetle IPB IPS and SPB SPB Spruce beetle SPC SPB and CLB BHS BHB/HSF BHB Black-headed budworm BSB BHB/SPB SBM Spruce/Larch budmoth FRB Sub Alpine Fir Beetle WID Willow defoliation WIR Willow Rust WLM Willow Leafblotch Miner


Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Hans Buchholdt
Contact_Organization:
Alaska Dept of Natural Resources, Division of Forestry, Forest Health Program
Contact_Position: Cartographer
Contact_Address:
Address_Type: mailing and physical address
Address: 550 W 7th Ave suite 1450
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99501
Country: USA
Contact_Voice_Telephone: 907 269-8729
Contact_Electronic_Mail_Address: hans_buchholdt@dnr.state.ak.us
Hours_of_Service: 0800-1630 AST M-F
Contact_Instructions:
Fax completed "Request for DNR GIS Data" form. Form can be found at <URL:http://www.asgdc.state.ak.us/homehtml/orderform.html>
Resource_Description: Downloadable Data
Distribution_Liability:
USFS, State & Private Forestry and the State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any users purposes. In no event will USFS State & Private Forestry or the State of Alaska be liable for any incidental, indirect, special, consequential or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof or otherwise, and in no event will USFS State & Private Forestry or the State of Alaska's liability to the requestor or anyone else exceed the fee paid for the electronic service or product.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 1.766
Ordering_Instructions:
Data can be downloaded, free of charge at: <https://agdc.usgs.gov/data/projects/fhm>

Metadata_Reference_Information:
Metadata_Date: 20080107
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, State and Private Forestry
Contact_Person: Dustin
Contact_Position: aerial survey and GIS specialist
Contact_Address:
Address_Type: mailing address
Address: 550 W 7th Ave #1450
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99501
Country: USA
Contact_Voice_Telephone: 907 586 7971
Contact_Facsimile_Telephone: 907 586 7848
Contact_Electronic_Mail_Address: dwittwer@fs.fed.us
Hours_of_Service: 0830-1630 AST
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
If the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by USDA Forest Service, State & Private Forestry or the State of Alaska Department of Natural Resources.
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile


AGDC Home | Information | Datasets | Tools | Links | Contacts

Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: https://agdc.usgs.gov/data/projects/fhm/data/akfordmg07_metadata.htm
Page Contact Information: agdcweb@usgs.gov
Page Last Modified: Wednesday, 07-Dec-2016 11:54:03 AKST