This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. Oregon Geospatial Enterprise Office (2012) provided digital video disks of the imagery to the Southern Oregon University research team. The imagery was projected to Oregon State Plane South Federal Information Processing Standards (FIPS) 3602 North American Datum (NAD) 1983. We extracted the Crater Lake imagery from the NAIP aerial orthophotography acquired for the entire state of Oregon. The NAIP imagery was collected in 2011 with a Leica ADS40-SH51 digital camera that recorded 4-band multi-spectral (red, green, blue, and infrared wavelength) images at a spatial resolution of 1 m (3.3 feet). Watershed Sciences, Inc. collected Light Detection and Ranging (Lidar) data of Crater Lake National Park in 2010 for the Oregon Department of Geology and Mineral Industries (DOGAMI) which then delivered it to the park.

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here.

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here.

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. GRBA base map imagery included a 4-band, 1-meter resolution, 2007 Digital Globe product and a 4-band, 6-inch resolution product acquired in June and July 2007 by Digital Mapping, Inc. (DMI) for the Southern Nevada Water Authority. Interpretation and mapping of the vegetation began using a four step process involving: (1) preliminary image classification and segmentation, (2) photo-interpretation and digitizing, (3) ground-truthing of the mapped data, and (4) map refinement and finalization.

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. A set of 1:12,000-scale CIR aerial photographs was collected on October 9, 2005 (funded by the NPS VIP, and the photo mission was supervised by GLKN staff). This set of photography covered the full project boundary extent and was the primary imagery used in photointerpretative mapping. In addition to the CIR photos, a set of 1:12,000-scale TC aerial photographs were collected May 11, 2004, providing deciduous leaf-off viewing of the entire extent. This photo mission was funded and supervised by GLKN staff. Having the TC photos gave interpreters a definite advantage in determining evergreen tree and shrub components within forest communities that are otherwise obscured by deciduous tree canopy on the fall-season CIR photos, thus giving credence to Avery’s statement regarding lack of a single all-purpose film emulsion.

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. A set of 1:12,000-scale CIR aerial photographs was collected on October 9, 2005 (funded by the NPS VIP, and the photo mission was supervised by GLKN staff). This set of photography covered the full project boundary extent and was the primary imagery used in photointerpretative mapping. In addition to the CIR photos, a set of 1:12,000-scale TC aerial photographs were collected May 11, 2004, providing deciduous leaf-off viewing of the entire extent. This photo mission was funded and supervised by GLKN staff. Having the TC photos gave interpreters a definite advantage in determining evergreen tree and shrub components within forest communities that are otherwise obscured by deciduous tree canopy on the fall-season CIR photos, thus giving credence to Avery’s statement regarding lack of a single all-purpose film emulsion.

The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file geodatabase but older formats may exist as shapefiles. Our final map product is a geographic information system (GIS) database of vegetation structure and composition across the Crater Lake National Park terrestrial landscape, including wetlands. The database includes photos we took at all relevé, validation, and accuracy assessment plots, as well as the plots that were done in the previous wetlands inventory. We conducted an accuracy assessment of the map by evaluating 698 stratified random accuracy assessment plots throughout the project area. We intersected these field data with the vegetation map, resulting in an overall thematic accuracy of 86.2 %. The accuracy of the Cliff, Scree & Rock Vegetation map unit was difficult to assess, as only 9% of this vegetation type was available for sampling due to lack of access. In addition, fires that occurred during the 2017 accuracy assessment field season affected our sample design and may have had a small influence on the accuracy. Our geodatabase contains the locations where particular associations are found at 600 relevé plots, 698 accuracy assessment plots, and 803 validation plots.

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. One complete set of aerial photography was provided for the project, including both a set of prints and diapositives. The specifications for the aerial photography are listed below: Color infrared photography (CIR) Flown October 29, 1996 - (height of the leaf change) Nominal scale - 1:6,000 (Nominal refers to the photo scale variability within each aerial photo and across flight lines. In this case the photo scale ranged from approximately 1:5,800 to 1:6,200) Approximate photo size - 9" x 9" Overlap between photos and across flight paths met the standards for photo interpretation using a mirror stereo scope. (Approximately 60% between photos and 10% - 20% between the flight lines)

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. One complete set of aerial photography was provided for the project, including both a set of prints and diapositives. The specifications for the aerial photography are listed below: Color infrared photography (CIR) Flown October 29, 1996 - (height of the leaf change) Nominal scale - 1:6,000 (Nominal refers to the photo scale variability within each aerial photo and across flight lines. In this case the photo scale ranged from approximately 1:5,800 to 1:6,200) Approximate photo size - 9" x 9" Overlap between photos and across flight paths met the standards for photo interpretation using a mirror stereo scope. (Approximately 60% between photos and 10% - 20% between the flight lines)

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. The primary imagery used for the base map for the project was 2016 60 cm National Aerial Imagery Program (NAIP) imagery. Additional imagery supporting the interpretation phase included current and historic true-color Google Earth and Bing Maps imagery, as well as 2015 4-band 30 cm imagery from Cornerstone Mapping Inc., and imagery from Digital Globe, Inc.