Skip to main content
USGS - science for a changing world
Advanced Search

Filters: Categories: Data (X)

39,619 results (55ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
The U.S. Geological Survey, in cooperation with the Puerto Rico Department of Natural and Environmental Resources, completed a study to determine whether a relation exists between the extent of forest cover and the magnitude of base flow at two sets of paired drainage basins in the highlands of the municipalities of Adjuntas and Utuado within the mountainous interior of Puerto Rico. One set of paired basins includes the Río Guaónica and Río Tanamá, both tributaries of the Río Grande de Arecibo. The other set includes two smaller basins in the drainage basin of the Río Coabey, which is a tributary of the Río Tanamá. The paired basins in each set have similar rainfall patterns, geologic substrate, and aspect; the...
thumbnail
An area encompassing all the National Forest System lands within the Greater Yellowstone Ecosystem (GYE) administered by an administrative unit. The area encompasses private lands, other governmental agency lands, and may contain National Forest System lands within the proclaimed boundaries of another administrative unit. All National Forest System lands fall within one and only one Administrative Forest Area.
The data set contains the results of experimental challenge of captive zebra finches with an American crow isolate of West Nile virus (WNV). Data include infectivity, mortality, viremia, oral shedding of virus, and serology for anti- WNV antibodies. Australian and Timor zebra finches were used in this study and both are useful as a laboratory model of an avian species with moderate susceptibility to WNV.
thumbnail
This portion of the USGS data release presents bathymetry data collected during surveys performed on the Elwha River delta, Washington in September 2010 (USGS Field Activity Number W-03-10-PS). Bathymetry data were collected using a small boat and a personal watercraft (PWC), each equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar systems on the survey vessels consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9° beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a...
thumbnail
Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an integrated research program aimed at understanding the ecosystem responses following dam removal. The research program included repeated surveys of beach topography, nearshore bathymetry, and surface sediment grain size to quantify changes in delta morphology...
thumbnail
This part of DS 781 presents data for bathymetry for several seafloor maps of the Offshore of Point Conception Map Area, California. The vector data file is included in "BathymetryHS_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. Shaded-relief bathymetry of the Offshore of Point Conception map area in southern California was generated largely from acoustic-bathymetry data collected by Fugro Pelagos Inc. Acoustic mapping was completed in 2008 using a combination of 400-kHz Reson 7125, 240-kHz Reson 8101, and 100-kHz Reson 8111 multibeam echosounders. Bathymetric-lidar data was collected in the nearshore area by the U.S. Army Corps of Engineers (USACE) Joint Lidar Bathymetry...
thumbnail
We collected detailed spatial data on the density and size distribution of intertidal snails as part of a broader effort to understand food webs in California estuaries. The survey area was Carpinteria Salt Marsh, California USA, which comprises 9 Ha tidal channels, 2 Ha salt flats, 17 Ha upland habitat, 6 Ha tidal pans, 52 Ha vegetated marsh, 2 Ha tidal flats. Using nearly 4,000 transects in potential snail habitat, we mapped snails throughout the estuary. Specifically, we systematically placed transects at intervals stratified within targeted habitat types: channels, pans, or marsh (or planar habitat that was mixed marsh and pan). At a quarter of the quadrats, we also estimated snail size-frequency distributions....
Streamflow and water-quality data collected at the Canajoharie Creek near Canajoharie, NY; go to: https://www.sciencebase.gov/catalog/item/595e6b16e4b0d1f9f05702fd for the complete dataset and associated metadata. Possible file types include: aflow.csv: Annual flow data; aloads.csv: Annual water-quality load data; dflow.csv: Daily flow data; discqw.csv: Discrete water-quality results; mflow.csv: Monthly flow data; mloads.csv: Monthly water-quality load data; pestname.csv: Pesticide abbreviations, long names, USGS parameter codes, and (CAS) numbers; pestsamp.csv: Discrete pesticide results
Categories: Data


map background search result map search result map Distribution and mapping of the snail Cerithideopsis (Cerithidea) californica at Carpinteria Salt Marsh, California USA, June to August 2012 ADMMR Photo Archive file: Goldfield Mine 64-28 Daily precipitation data for Pico Roncador, Río Tanamá and La Mira stations, Puerto Rico, March 2009 to March 2011 National Forest Administrative Units in the GYE Bathymetry and topography data from the Elwha River delta, Washington, May 2011 Nearshore bathymetry data from the Elwha River delta, Washington, September 2010 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P8 from 1984 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1984 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 18 July 1990 White-nose Spread Map GIS Service Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T8 from 2002 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 2005 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P4 from 2005 Bathymetry hillshade--Offshore of Point Conception Map Area, California Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T4, T5, T6, and T7 from 2012 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T8 and T9 from 2012 Tennessee 2015 State Wildlife Action Plan Species of Greatest Conservation Need ADMMR Photo Archive file: Goldfield Mine 64-28 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T8 from 2002 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1984 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 18 July 1990 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P8 from 1984 Bathymetry and topography data from the Elwha River delta, Washington, May 2011 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P4 from 2005 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T4, T5, T6, and T7 from 2012 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 2005 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands T8 and T9 from 2012 Distribution and mapping of the snail Cerithideopsis (Cerithidea) californica at Carpinteria Salt Marsh, California USA, June to August 2012 Nearshore bathymetry data from the Elwha River delta, Washington, September 2010 Daily precipitation data for Pico Roncador, Río Tanamá and La Mira stations, Puerto Rico, March 2009 to March 2011 Bathymetry hillshade--Offshore of Point Conception Map Area, California Tennessee 2015 State Wildlife Action Plan Species of Greatest Conservation Need National Forest Administrative Units in the GYE White-nose Spread Map GIS Service