SNC00 Metadata for Oregon Department of Forestry Swiss Needle Cast Map 2000 This metadata is under development and does not comply with FGDC Standards. 1. IDENTIFICATION INFORMATION 1.1 CITATION * (8.1) ORIGINATOR: Insect and Disease Section, Oregon department of Forestry * (8.2) PUBLICATION DATE: unpublished material * (8.4) TITLE: Areas of Discolored Douglas-fir, 2000 * (8.6) GEOSPATIAL DATA PRESENTATION FORM: map * (8.7) SERIES INFORMATION * (8.7.1) SERIES NAME: unpublished material * (8.7.2) ISSUE IDENTIFICATION: unpublished material * (8.8) PUBLICATION INFORMATION * (8.8.1) PUBLICATION PLACE: unpublished material * (8.8.2) PUBLISHER: unpublished material * (8.9) OTHER CITATION DETAILS: areas of discoloration detected by aerial survey * (8.11) LARGER WORK CITATION: 1.2 DESCRIPTION 1.2.1 ABSTRACT: Polygons correspond to areas of discolored forest, primarily Douglas-fir forests. Discoloration was detected during aerial surveys of stands within about 20 miles of the coastline conducted during May and early June of 2000. Areas of discoloration were sketchmapped using a digital sketchmapping system currently under development by the U.S. Forest Service. The following narrative describes the survey in more detail: The enclosed maps show the approximate size and location of areas of Douglas-fir forest with symptoms of Swiss needle cast detected during and aerial survey in May and early June. Survey procedures: Survey flights were in the spring (May and early June) using the ODF Partenavia P68 Observer. Generally, north-lines were flown on a two mile interval with two observers, so each observer was responsible for mapping one mile out from the flight path on each pass. Flights were made at 1,500 to 2,000 feet above the terrain. The survey extended from the coast eastward until obvious symptoms were no longer visible. In Tillamook county symptoms were observed up to 24 miles inland from the coast. The survey extended from the Columbia river south to near Bandon (43 degrees north latitude). Because the 1996 survey showed few areas of discoloration south of Bandon that were associated with Swiss needle cast, this area was omitted in subsequent years. Observers look for areas of Douglas-fir forest with abnormally yellow to yellow-brown foliage, a symptom of Swiss needle cast. Patches of forest with these symptoms (the patches are referred to as polygons) were recorded on a digital sketchmapping system under development by the U.S. Forest Service. The system consists of touch screens displaying a GPS linked map running through a laptop. Each observer had a complete system, and resulting shapefiles were combined using ArcInfo. Polygons were classified as having either severe or moderate discoloration. [see further explanation of attributes below in section 5.2.1]. Polygons classified as s for discoloration had very sparse crowns and brownish foliage, while those classified as M tended toward yellow-brown foliage and slightly more dense crowns. We have little doubt that Swiss needle cast symptoms have intensified during the past several years. We mapped the disease in areas that were without symptoms in previous surveys and we had to expand the survey inland to include new areas with symptoms. Weather conditions in the spring before and during the survey affect symptom development. It is not possible to fly the survey at the same stage of symptom development each year. Because of the often unsettled weather during the spring we must fly when the light conditions are right for observation (solid light overcast or clear skies). Periods of warm dry weather enhance foliage discoloration , so areas flown early in the survey may not have the degree of discoloration observed later in the survey. These estimates of areas effected are conservative because they represent only those areas with obvious symptoms. Ground surveys indicate that Swiss needle cast occurred in all Douglas-fir stands throughout the survey area, but in many places symptoms were not developed enough to enable aerial detection. Factors other than the presence of the pathogen strongly affect disease development, and these factors remain poorly understood. We observe discolored sparse foliage in Douglas-fir of all ages and sizes, including natural stands more than 80 years old. Nearby spruce and hemlock appear normal. Although little research has been conducted on mature trees, the similar appearance and timing of symptoms between the young and old trees suggest the same or similar causal agent(s). All polygons that have been ground checked confirm that Swiss needle cast was present, and that symptoms observed were consistent with this disease. Detailed results of ground surveys is available through the Swiss Needle Cast Cooperative Timing of aerial surveys: The most pronounced foliage discoloration occurs about two weeks before and one week after bud-break. At the beginning of the survey in early April, the predominant symptom is abnormally yellow, sparse foliage. With the onset of warmer weather, the foliage became more brownish, which contrasts well with the light green color of young hemlock and deciduous trees and shrubs. Funding/acknowledgments: The aerial survey was conducted by the Insect and Disease section of the Oregon Department of Forestry. The USDA Forest Service Forest Pest Management group provided some funding and an and an aerial observer. Other funds for the survey were provided by the Swiss Needle Cast Cooperative. For more information about the Swiss Needle Cast Cooperative, contact Dr. Greg Filip, Oregon State University, Corvallis, OR (541-737-6567). We appreciate any information regarding the accuracy or usefulness of this survey. If you have a chance to look at some of the mapped areas on the ground, please let us know what you observe. Please call Alan Kanaskie (503-945-7397) or Mike McWilliams (503-945-7395) if you have questions or comments. 1999 Acres Surveyed: 2,891,000 Acres with Discoloration: 282,000 1.2.2 PURPOSE: To provide regional scale information on areas showing Douglas-fir discoloration, indicating symptoms of Swiss Needle Cast. 1.3 TIME PERIOD OF CONTENT * (9.1) SINGLE DATE/TIME * (9.1.1) CALENDAR DATE: May-June, 2000 1.3.1 CURRENTNESS REFERENCE: June, 2000 1.4 STATUS 1.4.1 PROGRESS: Complete 1.4.2 MAINTENANCE AND UPDATE FREQUENCY: Yearly, as funding permits. 1.5 SPATIAL DOMAIN 1.5.1 BOUNDING COORDINATES (approximate) * 1.5.1.1 WEST BOUNDING COORDINATE: -124.5 * 1.5.1.2 EAST BOUNDING COORDINATE: -123.5 * 1.5.1.3 NORTH BOUNDING COORDINATE: 46.25 * 1.5.1.4 SOUTH BOUNDING COORDINATE: 43.3 1.6 KEYWORDS 1.6.1 THEME * 1.6.1.1 THEME KEYWORD THESAURUS: none * 1.6.1.2 THEME KEYWORD: forest health * 1.6.1.2 THEME KEYWORD: disease * 1.6.1.2 THEME KEYWORD: Swiss needle cast * 1.6.1.2 THEME KEYWORD: douglas-fir discoloration * 1.6.1.2 THEME KEYWORD: 1.6.2 PLACE * 1.6.2.1 PLACE KEYWORD THESAURUS: none * 1.6.2.2 PLACE KEYWORD: Oregon 1.7 ACCESS CONSTRAINTS: none 1.8 USE CONSTRAINTS: Suitable for regional applications only (1:100,000 scale or smaller). Locations of some polygons may not be accurate due to errors in the aerial sketch maps, the compilation process, digitizing, or a combination of these factors. The Oregon Department of Forestry does not guarantee the validity or accuracy of these data. 1.9 POINT OF CONTACT * (10.2) CONTACT ORGANIZATION PRIMARY: Oregon Department of Forestry * (10.3) CONTACT POSITION: Insect and Disease Section * (10.4) CONTACT ADDRESS: * (10.4.1) ADDRESS TYPE: mailing address * (10.4.2) ADDRESS: 2600 State St. * (10.4.3) CITY: Salem * (10.4.4) STATE OR PROVINCE: Oregon * (10.4.5) POSTAL CODE: 97310 * (10.4.6) COUNTRY: USA * (10.5) CONTACT VOICE TELEPHONE: 503-945-7395 * (10.7) CONTACT FACSIMILE TELEPHONE: 503-945-7376 * (10.8) CONTACT ELECTRONIC MAIL ADDRESS: mmcwilliams@odf.state.or.us 1.13 NATIVE DATA SET ENVIRONMENT: Arc/Info version 7.0.3 software for UNIX, with no 8.3 setting. 2. DATA QUALITY INFORMATION 2.1 ATTRIBUTE ACCURACY 2.1.1 ATTRIBUTE ACCURACY REPORT: Attribute accuracy has been reviewed by Insect and Disease personnel. Generally, discolored areas mapped show infection by the Swiss Needle Cast fungus (Phaeocryptopus gaumanii), but some polygons contain a substantial component of western hemlock. 2.2 LOGICAL CONSISTENCY REPORT: Polygon topology present. 2.4 POSITIONAL ACCURACY 2.4.1 HORIZONTAL POSITIONAL ACCURACY 2.4.1.1 HORIZONTAL POSITIONAL ACCURACY REPORT: Horizontal positional accuracy is verified by visual comparison of source and hard copy master aerial survey sketch maps. Because of the inherent difficulty of mapping discoloration and short amount of time available to detect and sketch map during the aerial survey, some polygons may be inaccurately located. 3. SPATIAL DATA ORGANIZATION INFORMATION 3.2 DIRECT SPATIAL REFERENCE METHOD: Vector 4. SPATIAL REFERENCE INFORMATION 4.1 HORIZONTAL COORDINATE SYSTEM DEFINITION 4.1.2 PLANAR * 4.1.2.1 MAP PROJECTION * 4.1.2.1.1 MAP PROJECTION NAME: Lambert Conformal Conic * 4.1.2.1.2 MAP PROJECTION-PARAMETERS * 4.1.2.1.2.1 LATITUDE OF FIRST STANDARD PARALLEL: 43 0 0.000 * 4.1.2.1.2.2 LATITUDE OF SECOND STANDARD PARALLEL: 45 30 0.000 * 4.1.2.1.2.3 LONGITUDE OF CENTRAL MERIDIAN: -120 30 0.000 * 4.1.2.1.2.4 LATITUDE OF PROJECTION ORIGIN: 41 45 0.000 * 4.1.2.1.2.5 FALSE EASTING: 400000.00000 * 4.1.2.1.2.6 FALSE NORTHING: 0.00000 4.1.4 GEODETIC MODEL 4.1.4.1 HORIZONTAL DATUM NAME: NAD83 4.1.4.2 ELLIPSOID NAME: Clarke 1866 4.2 VERTICAL COORDINATE SYSTEM DEFINITION 4.2.1 ALTITUDE SYSTEM DEFINITION 4.2.1.1 ALTITUDE DATUM NAME: N/A 5. ENTITY AND ATTRIBUTE INFORMATION 5.2 OVERVIEW DESCRIPTION 5.2.1 ENTITY AND ATTRIBUTE OVERVIEW: Attribute items are in typical Arc/Info PAT and AAT format. Those requiring additional explanation are: A. PAT ITEMS * SNCCODE - polygon attribute denoting degree of discoloration in 1998: M=moderate discoloration S=severe discoloration Z=discoloration not associated with SNC 7. METADATA REFERENCE SECTION 7.1 METADATA DATE: 20001031 7.4 METADATA CONTACT * (10.1) CONTACT PERSON PRIMARY * (10.1.1) CONTACT PERSON: Michael McWilliams * (10.1.2) CONTACT ORGANIZATION: Oregon Department of Forestry * (10.4) CONTACT ADDRESS * (10.4.1) ADDRESS TYPE: mailing address * (10.4.2) ADDRESS: 2600 State St. * (10.4.3) CITY: Salem * (10.4.4) STATE OR PROVINCE: Oregon * (10.4.5) POSTAL CODE: 97310 * (10.4.6) COUNTRY: USA * (10.5) CONTACT VOICE TELEPHONE: 503-945-7395 * (10.7) CONTACT FACSIMILE TELEPHONE: 503-945-7376 * (10.8) CONTACT ELECTRONIC MAIL ADDRESS: mike.g.mcwilliams@state.or.us