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For 40 years, the Biological Survey of Canada (BSC) has encouraged and organised studies of the arthropod fauna of Canada, through the wide involvement of the scientific community and the leadership of an expert steering committee. The benefits of the BSC to science include the completion of major cooperative projects to acquire and synthesise knowledge (documenting faunas in the Yukon, Canadian grasslands, and other significant regions and habitats), the assembly and organisation of information and specimens, and improved communication among entomologists. Its efforts have led to valuable monographs, scientific briefs, newsletters, and other products summarised here, including documents that are also useful to...
Album caption and index card: Ship Alaska and barge at river bank, Ft. Yukon. Yukon Flats, Yukon. Alaska. June 15, 1919.
Album caption (17): See no. 16 for caption. Album caption (16): Campfire at Survey camp on Riley Creek near bend to SW. Camp 3. Nenana district, Yukon region, Alaska. Late July, 1919. Index card: Three men around campfire at camp 3, on Riley Creek near bend to southwest. Nenana district, Yukon region, Alaska. July 1919.
Album caption and index card: Folded slate between Riley and Maurice (Hines) Creeks. Nenana district, Yukon region, Alaska. July 29, 1919.
View up main fork of east fork of Toklat River to glacier. Kantishna district, Yukon region, Alaska. 1919.
Album caption and index card: View up main fork of east fork of Toklat River to glacier. Kantishna district, Yukon region, Alaska. August 23, 1919.
Album caption: Stoney Glacier and Mountain. Head of Portage Creek, Tordrillo Range, Alaska. No index card.
The Grand Canyon as seen from the south rim of Grandview Point. Grand Canyon National Park, Arizona. 1901.
Album caption: The Grand Canyon as seen from the south rim at Grandview Point. 10 miles east of El Tovar Hotel. The width of the canyon as measured between Grandview Point and Walhalla Plateau is 9 miles. The rim of Walhalla Plateau is 5,750 feet above the river, and its horizontal distance from the river is 5 miles. [Grand Canyon National Park] Coconino County, Arizona. 1901. (Same as photo no. 146) Index card unavailble. See also: cnw00046
Album caption: Sep 89. No index card. Personal communication from Clay Martin, Field Records Collection, on May 3, 2019, "Lower Yellowstone Falls."
0.2-second spectral response acceleration (5% of critical damping) with a 1% probability of exceedance in 1 year for the Western United States
This data set represents the results of calculations of hazard curves for a grid of points with a spacing of 0.05 degrees in latitude and longitude. This particular data set is for horizontal spectral response acceleration for 0.2-second period with a 1 percent probability of exceedance in 1 year. The data are for the Western United States and are based on the long-term 2014 National Seismic Hazard Model.
The Gazli cluster is named for the town of Gazli in northwest Uzbekistan. The source region was nearly aseismic until April 8, 1976 when a large (Ms 7.0) earthquake initiated several years of very active seismicity, including another Ms 7.0 event in May 1976 and a third Ms 7.0 event in March 1984. Low-level activity continues currently. It is generally believed that the sequence represents an episode of induced seismicity related to large-scale gas extraction industry in the area. The cluster is formed mainly from events that have depth control from teleseismic relative depth phases, plus one event, on June 25, 1991, that was recorded by a temporary seismic network (operated by LGIT, Grenoble, France) and was well-enough...
Album caption: 8/1/'02. S. 70° E., Mt. Foraker. Alaska. Handwritten notes on album caption: Mount McKinley (A-4) quad, Tonzona district, Kuskokwim region, Alaska. Index card: Mount Foraker from vicinity of camp of August 1. Mount McKinley quadrangle, Tonzona district, Kuskokwim region, Alaska. 1902. Note on photograph: Negative destroyed by authority of administrative geologist.
Album caption: Greenstone along left bank Yukon River below mouth of Thanksgiving Cr.
Album caption: Breaking camp, Marsh Creek, Alaska. Index card: Eskimo breakinig camp, Marsh Creek. Canning district, Northern Alaska region, Alaska. 1908.
Album caption: Cottle Knob, erected by Oscar Jones, triangulation party, Cowen quad., West Va., 1915. Photograph by E.C. Moore. Instrument elevated 35 ft. Handwritten notes on album caption: Nicholas County. Index card: Triangulation station on Cottle Knob. Webster County, West Virginia. 1915.
Album caption: View from Divide Peak, Loc. 9A E.253,300. Handwritten notes on album caption: Alaska - Seward Pen. - Shaktolik dist. Candle quadr. Panorama with 83. Index card: Album caption: View from Divide Peak, Loc. 9A E.253,300. Panorama with 81, 82, and 84.
Album caption: A concrete bridge on a new highway in the interior. No index card.
Information on the nature and distribution of permafrost is critical to assessing the response of Arctic ecosystems to climate change, because thawing permafrost under a warming climate will cause thaw settlement and affect micro-topography, surface water redistribution and groundwater movement, soil carbon balance, trace gas emissions, vegetation changes, and habitat use. While a small-scale regional permafrost map is available, as well as information from numerous site-specific large-scale mapping projects, landscape-level mapping of permafrost characteristics is needed for regional modeling and climate impact assessments. The project addresses this need by: (1) compiling existing soil/permafrost data from available...
Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980.
Index card (47ct-52ct, 54ct-55ct): Oblique aerial views looking down at dome and adjacent areas of crater floor. Skamania County, Washington. 1980.
Ash distribution from Mount St. Helens eruption of May 18, 1980, showing distribution by average depth/thickness. Washington and Oregon. 1980.
Slide description and index card: Mount St. Helens. Ash distribution from Mount St. Helens eruption of May 18, 1980, showing distribution by average depth/thickness. Washington and Oregon. 1980.
XYZ files of LiDAR and sonar data collected at Lake Superior at Minnesota Point, Duluth, MN, August 2019
This dataset is comprised of three files containing northing, easting, and elevation ("XYZ") information for light detection and ranging (LiDAR) data representing beach topography and sonar data representing near-shore bathymetry of Lake Superior at Minnesota Point, Duluth, Minnesota. The point data is the same as that in LAS (industry-standard binary format for storing large point clouds) files that were used to create a digital elevation model (DEM) of the approximately 5.9 square kilometer (2.3 square mile) surveyed area. LiDAR data were collected August 10, 2019 using a boat-mounted Optech ILRIS scanner and methodology similar to that described by Huizinga and Wagner (2019). Multi-beam sonar data were collected...