Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Feeding and Trophic Ecology of Invasive Blue Catfish Ictalurus furcatus in an Eastern shore tributary of the Chesapeake Bay Feeding and Trophic Ecology of Invasive Blue Catfish Ictalurus furcatus in an Eastern shore tributary of the Chesapeake Bay
This study investigates the feeding and trophic ecology of invasive Blue Catfish (Ictalurus furcatus) in the Nanticoke River watershed on the Chesapeake Bay’s Eastern Shore (Maryland, U.S.A). From a total of 1,032 stomach samples collected, a subset of 88 was analyzed using 18S and COI metabarcoding primers to enhance taxonomic resolution of prey items. USGS-generated genetic reference...
Geospatial Datasets of Factors Influencing Pluvial Flood Potential in Long Island, New York and Near Coastal Areas Surrounding Long Island Sound in New York, Connecticut, and Rhode Island Geospatial Datasets of Factors Influencing Pluvial Flood Potential in Long Island, New York and Near Coastal Areas Surrounding Long Island Sound in New York, Connecticut, and Rhode Island
This data release provides spatial digital data for factors that influence pluvial flood hazard potential, including closed depressions, curve number, drainage networks, topographic slope, average annual rainfall, 1-hr and 24-hour 100-year return period rainfall accumulation, and locations of recorded floods. In addition, these flood influencing factors are summarized to a common 900...
Permafrost Ground Temperature from 1950 to 1961 in Utqiagvik, Alaska: Special Holes 2, 8, 22, and 26 Permafrost Ground Temperature from 1950 to 1961 in Utqiagvik, Alaska: Special Holes 2, 8, 22, and 26
This legacy dataset includes digitized ground temperatures from four borehole sites in Utqiagvik, Alaska. The data were measured by scientists from the Naval Arctic Research Laboratory (NARL) on a weekly to biweekly frequency spanning 1950 to 1961. The datasets include ground temperatures at approximately 15-24 depth increments down to 60-110 ft (28-33 m) (with higher measurement...
CoSMoS (Coastal Storm Modeling System) modeled flood hazards for Pierce County, Washington CoSMoS (Coastal Storm Modeling System) modeled flood hazards for Pierce County, Washington
This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR), projected coastal storms, and streamflow. Products include projected flood depths, flood extents including uncertainties, water elevations, velocity hazards, and flood duration. These are generated using a suite of numerical models driven by outputs from Global Climate Models...
Phytoplankton pigment data collected from surface waters in the Lake Pontchartrain estuary, Louisiana, from November 2024 to May 2025 Phytoplankton pigment data collected from surface waters in the Lake Pontchartrain estuary, Louisiana, from November 2024 to May 2025
Monthly surface water samples were collected at sites in the Lake Pontchartrain estuary to assess the phytoplankton biomass and composition using algal pigment analysis. A total of 27 algal pigments including chlorophyll a and accessory pigments were evaluated from each of the water samples.
Hydrology data from selected Louisiana freshwater forested wetlands 2004-2022 Hydrology data from selected Louisiana freshwater forested wetlands 2004-2022
Infinity water level recorders were installed in 2004 to monitor hydrologic conditions in five freshwater forested wetlands in Louisiana: Bayou Chevreuil, Bayou Teche National Wildlife Refuge, Mandalay National Wildlife Refuge, Jean Lafitte National and Historical Park, and Treasure Island. Hourly measurements were collected continuously on a 24- hour basis through April 2022, producing...