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Trap boulders, French Creek Falls. Chester County, Pennsylvania. No date. (Geological Society of America image number 987.)
Categories: Image;
Tags: Chester County, Pennsylvania,
Hardin, E.B. Collection,
Photographers,
photo print
Detail of ledge shown in center of image 883. Magnesite stock work. Portrait of W. Frank Gorrechi. Lancaster, Pennsylvania. September 19, 1921.
In 2016, for the first time, an abundance of age-0 silver carp (Hypophthalmichthys molitrix) were captured at several sites upstream of Lock and Dam 19 on the Upper Mississippi River near Keokuk, Iowa. These data were collected in an attempt to determine the early life environments and frequency and timing of the reproductive events that led to a large year class of age-0 silver carp. This information is important for informing decisions about control measures. We sampled these fish to determine age (days) and early life environments using their otoliths. Sampled age-0 silver carp were collected from navigation Pools 18 and 19 from July–October 2016 using a variety of sampling gears. We aged these fish by counting...
Categories: Data;
Tags: Aquatic Biology,
Asian carp,
Ecology,
Hypophthalmichthys molitrix,
Navigation pool 18,
The area surrounding La Conchita, California (CA), USA experienced significant landslides and debris flows following a storm on January 10th, 2005, including a deadly deep-seated landslide that destroyed 13 houses and caused 10 fatalities (Jibson, 2006). This data release documents the locations of shallow landslide source locations in the vicinity of the deadly 2005 La Conchita landslide. Landslide locations were mapped as points using post-event imagery available in Google Earth. The data release includes: 1) .csv file containing the point locations of shallow hillslope landslides, 2) .zip file containing shapefile (.shp) of the mapped study area. References: Jibson, R. W. (2006). The 2005 La Conchita, California,...
Categories: Data;
Tags: California,
Geomorphology,
La Conchita,
USGS Science Data Catalog (SDC),
United States,
These data are the results of a spatially interpolated integrated population model (SIIPM) fit to count and demographic data collected from populations of Greater Sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse) located in Nevada, U.S.A. during 2013-2021. We used a novel framework, using integrated population models (IPMs), to express demographic relatedness among sampled and unsampled populations using geographic principles of spatial autocorrelation (Shepard, 1968; Tobler, 1970). Specifically, the framework pairs relatively inexpensive population count data with spatially interpolated demographic estimates. When conducted within a Bayesian framework, spatially interpolated demographic parameters...
Panorama with image 049 (right to left). Figuerdo Wash, 4000 feet above Highway 666 at type of locality of Nakaibito formation. Nakaibito formation above and gravels of Gamerco formation below. Mexican Springs Experimental Station. San Juan County, New Mexico. October 1949.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Leopold, L.B. Collection,
Photographers,
San Juan County, New Mexico,
panorama,
photo print
Porphyritic granite gneiss showing slabby aspect of outcrop which parallels the foliation. Note slightly discordant quartz vein under hammer with ladder fractures. 0.45 mile north, 70 degrees west of benchmark 337 on Woody Hill Road, Exeter. Washington County, Rhode Island. September 1962.
Categories: Image;
Tags: Feininger, T.G. Collection,
Photographers,
Washington County, Rhode Island,
photo print
Drill rig on location approximately 10 miles east of Kermit. Winkler County, Texas. May 1970.
Categories: Image;
Tags: Brown, R.L. Collection,
Photographers,
Winkler County, Texas,
color transparency (slides)
Drill rig on location approximately six miles northeast of Andrews. Andrews County, Texas. May 1970.
Nine Point Mesa, showing moving cloud effects. Nine Point Mesa quadrangle. Brewster County, Texas. 1899.
A three-dimensional groundwater flow model of the Central Valley in California was developed to aid water managers in understanding how water moves through the aquifer system, to predict water-supply scenarios, and to address issues related to subsidence. The USGS California Water Science Center made a detailed assessment of groundwater availability of the Central Valley aquifer system, which includes: (1) the status of groundwater resources; (2) how these resources have changed over time, particularly related to subsidence; and (3) tools to assess system responses to stresses from future human uses and climate variability and change. This effort builds on previous investigations, such as the USGS Central Valley...
Categories: Data;
Tags: California,
Central Valley,
Corcoran Clay,
Sacramento Valley,
San Joaquin Basin,
Panorama with image 569. Branch of Camuy(?) River, in limestone and sink hole country. There are several caverns in this vicinity. View from Arecibo-Lares road. Arecibo County, Puerto Rico. February 1922.
Contact of harder and softer limestone along road between Lares and San Sebastian. Aguadilla County, Puerto Rico. February 1922.
Panorama with image 545. View of Guajataca canyon just below dam site, Isabela irrigation project. Aguadilla County, Puerto Rico. January 1922.
Ford of the Guajataca River, Isabela irrigation project, part of floor of proposed reservoir. Aguadilla County, Puerto Rico. February 1922.
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