Description

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Every summer for approximately the past seventy years, an insect and disease aerial detection survey has been flown of all the forested acres of Washington state (except where noted in the digital data by large 'NF' (not flown) areas). This survey is a cooperative effort between the U.S. Forest Service and the WADNR with two different flight observers each sketching a two mile swath out their side of the plane. The primary mission of the survey is to record recently killed and defoliated groups of trees throughout the state, and to continually build a historical record of these trends. The vast majority of damage found is caused by insect and disease damage agents; however, trees killed by early spring feeding of black bears or by events such as winter storms, fires, floods and landslides are recorded as well. Current defoliation can be detected as soon as the affected foliage changes color that year. However, whole tree mortality is not current since only flagged trees (i.e., trees which have a bright red, orange, or yellow foliage color) are recorded. This means that trees killed the year of the survey will not have changed color yet and so a one year lag time results. Since only this distinctive color or "signature" of the tree can be seen. It is an educated guess as to the causal agent. We therefore use ground surveys to reinforce our estimates as much as possible. Example: When bear damage is spotted while surveying, a polygon is drawn on the map of the size and location of the damage. The polygon is then labeled with the appropriate damage agent (i.e. Bear) and the number of trees affected rounded to the nearest five. No vertical data is recorded.

Dataset Attributes

  • OBJECTID
    Number
  • BUGCRD_ID
    Number
    0 to 317757
  • AL
    Text
    {"value"=>"1-20", "count"=>4208} (), {"value"=>"6L-5A", "count"=>3428} (), {"value"=>"6L-30", "count"=>2498} (), {"value"=>"4-.5A", "count"=>2102} (), {"value"=>"4-3", "count"=>1992} (), {"value"=>"4-1.0A", "count"=>1954} (), {"value"=>"BEAR-4", "count"=>1761} (), {"value"=>"1-1.5A", "count"=>1654} (), {"value"=>"1-4", "count"=>1468} (), {"value"=>"BEAR-40", "count"=>902} ()
  • AGENT1
    Text
    {"value"=>"BEAR", "count"=>84370} (), {"value"=>"1", "count"=>77329} (), {"value"=>"6L", "count"=>54295} (), {"value"=>"4", "count"=>45134} (), {"value"=>"6P", "count"=>33166} (), {"value"=>"BS", "count"=>21209} (), {"value"=>"88", "count"=>21044} (), {"value"=>"6W", "count"=>12969} (), {"value"=>"8", "count"=>12638} (), {"value"=>"AB", "count"=>9831} ()
  • AGENT1_DAMAGING_AGENT
    Text
    {"value"=>"Mountain pine beetle", "count"=>106909} (), {"value"=>"Bear", "count"=>84370} (), {"value"=>"Douglas-fir beetle", "count"=>77329} (), {"value"=>"Fir engraver", "count"=>45134} (), {"value"=>"Western spruce budworm", "count"=>21209} (), {"value"=>"Western pine beetle (in pole-sized trees)", "count"=>21044} (), {"value"=>"Western pine beetle", "count"=>12638} (), {"value"=>"Balsam woolly adelgid", "count"=>9831} (), {"value"=>"Dying hemlock", "count"=>8362} (), {"value"=>"Western balsam bark beetle", "count"=>6984} ()
  • AGENT1_PRIMARY_HOST
    Text
    {"value"=>"Conifer species", "count"=>85641} (), {"value"=>"Douglas-fir", "count"=>78944} (), {"value"=>"Ponderosa pine", "count"=>70279} (), {"value"=>"Lodgepole pine", "count"=>55101} (), {"value"=>"True firs", "count"=>45232} (), {"value"=>"Abies species, spruce, Douglas-fir", "count"=>21209} (), {"value"=>"Western white pine", "count"=>12969} (), {"value"=>"Pacific silver fir, subalpine fir and grand", "count"=>9831} (), {"value"=>"Western & mountain hemlock", "count"=>8407} (), {"value"=>"All species", "count"=>7807} ()
  • DAM1C
    Text
    {"value"=>"1", "count"=>28646} (), {"value"=>".25", "count"=>5005} (), {"value"=>"7.", "count"=>1212} (), {"value"=>"2.515", "count"=>394} (), {"value"=>"1.998", "count"=>374} (), {"value"=>"4.993", "count"=>330} (), {"value"=>"7.496", "count"=>224} (), {"value"=>"5.022", "count"=>192} (), {"value"=>"7.492", "count"=>174} (), {"value"=>"9.994", "count"=>158} ()
  • AGENT2
    Text
    {"value"=>" ", "count"=>237885} (), {"value"=>"4", "count"=>2359} (), {"value"=>"BS", "count"=>2287} (), {"value"=>"6L", "count"=>1477} (), {"value"=>"AB", "count"=>1470} (), {"value"=>"6P", "count"=>1396} (), {"value"=>"FIRE", "count"=>1331} (), {"value"=>"RD", "count"=>1306} (), {"value"=>"1", "count"=>980} (), {"value"=>"5", "count"=>574} ()
  • AGENT2_DAMAGING_AGENT
    Text
    {"value"=>"Mountain pine beetle", "count"=>3487} (), {"value"=>"Fir engraver", "count"=>2359} (), {"value"=>"Western spruce budworm", "count"=>2287} (), {"value"=>"Balsam woolly adelgid", "count"=>1470} (), {"value"=>"Fire", "count"=>1331} (), {"value"=>"Root disease", "count"=>1306} (), {"value"=>"Douglas-fir beetle", "count"=>980} (), {"value"=>"Western balsam bark beetle", "count"=>574} (), {"value"=>"Drought", "count"=>458} (), {"value"=>"Western pine beetle (in pole-sized trees)", "count"=>437} ()
  • AGENT2_PRIMARY_HOST
    Text
    {"value"=>"True firs", "count"=>2362} (), {"value"=>"Ponderosa pine", "count"=>2332} (), {"value"=>"Abies species, spruce, Douglas-fir", "count"=>2287} (), {"value"=>"Lodgepole pine", "count"=>1498} (), {"value"=>"Pacific silver fir, subalpine fir and grand", "count"=>1470} (), {"value"=>"All species", "count"=>1427} (), {"value"=>"Conifer species", "count"=>1407} (), {"value"=>"Douglas-fir", "count"=>1028} (), {"value"=>"Sub-alpine fir (and other abies species)", "count"=>574} (), {"value"=>"All Species", "count"=>458} ()
  • DAM2C
    Text
    {"value"=>"H", "count"=>1010} (), {"value"=>"2.", "count"=>748} (), {"value"=>".25", "count"=>611} (), {"value"=>"1", "count"=>574} (), {"value"=>"3.", "count"=>415} (), {"value"=>"3", "count"=>211} (), {"value"=>"0.25", "count"=>103} (), {"value"=>"4.", "count"=>94} (), {"value"=>"20.", "count"=>52} (), {"value"=>"1.5", "count"=>47} ()
  • AGENT3
    Text
    {"value"=>" ", "count"=>246159} (), {"value"=>"BS", "count"=>143} (), {"value"=>"FIRE", "count"=>140} (), {"value"=>"4", "count"=>91} (), {"value"=>"AB", "count"=>76} (), {"value"=>"1", "count"=>52} (), {"value"=>"6L", "count"=>47} (), {"value"=>"5", "count"=>33} (), {"value"=>"BR", "count"=>29} (), {"value"=>"6P", "count"=>28} ()
  • AGENT3_DAMAGING_AGENT
    Text
    {"value"=>"Western spruce budworm", "count"=>143} (), {"value"=>"Fire", "count"=>140} (), {"value"=>"Mountain pine beetle", "count"=>111} (), {"value"=>"Fir engraver", "count"=>91} (), {"value"=>"Balsam woolly adelgid", "count"=>76} (), {"value"=>"Douglas-fir beetle", "count"=>52} (), {"value"=>"Western balsam bark beetle", "count"=>33} (), {"value"=>"White pine blister rust", "count"=>29} (), {"value"=>"Oregon pine engraver", "count"=>25} (), {"value"=>"Spruce beetle", "count"=>21} ()
  • AGENT3_PRIMARY_HOST
    Text
    {"value"=>"All species", "count"=>145} (), {"value"=>"Abies species, spruce, Douglas-fir", "count"=>143} (), {"value"=>"True firs", "count"=>91} (), {"value"=>"Ponderosa pine", "count"=>88} (), {"value"=>"Pacific silver fir, subalpine fir and grand", "count"=>76} (), {"value"=>"Douglas-fir", "count"=>52} (), {"value"=>"Lodgepole pine", "count"=>48} (), {"value"=>"Sub-alpine fir (and other abies species)", "count"=>33} (), {"value"=>"Five needle pines", "count"=>29} (), {"value"=>"Engelman and Sitka spruce", "count"=>21} ()
  • DAM3C
    Text
    {"value"=>" ", "count"=>192768} (), {"value"=>"0", "count"=>53534} (), {"value"=>"M", "count"=>148} (), {"value"=>"L", "count"=>62} (), {"value"=>"H", "count"=>59} (), {"value"=>"1.", "count"=>51} (), {"value"=>".5", "count"=>49} (), {"value"=>"1", "count"=>40} (), {"value"=>"2", "count"=>38} (), {"value"=>"2.", "count"=>32} ()
  • DAM1
    Number
    0 to 377.8
  • DAM2
    Number
    0 to 470.1
  • DAM3
    Number
    0 to 20
  • YEAR
    Number
    1980 to 2017
  • SHAPE
    Number
  • SHAPE.AREA
    Number
  • SHAPE.LEN
    Number

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