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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Abundance Within and Ratios Between Successive Juvenile Tree Size Classes based on Mean Annual Temperature for Ten Common Tree Species in the Northeastern and Midwestern USA from 2012-2021 Abundance Within and Ratios Between Successive Juvenile Tree Size Classes based on Mean Annual Temperature for Ten Common Tree Species in the Northeastern and Midwestern USA from 2012-2021
This data release contains a CSV dataset of the likelihood of sapling recruitment based on abundance of seedlings height classes and other stand and site-level factors. Maps accompany the CSV on how the relationship between temperature and relative survival and seedling/sapling abundance varies by size class for ten tree species in the northeastern and midwestern USA, and can be used to...
Bioenergetics Models of Freshwater Precids and Centrarchids in 337 lakes Under Predicted Future Climate Conditions Across the Midwest from 2000-2100 Bioenergetics Models of Freshwater Precids and Centrarchids in 337 lakes Under Predicted Future Climate Conditions Across the Midwest from 2000-2100
This data release contains the two intermediary variables (processed lake temperature prediction feather files and bioenergetic metrics CSV), model code in R script used to produce the outputs, and bioenergetics model prediction feather files for a set of fish bioenergetics models under current and future temperature conditions at 337 large lakes.
Data collected from wastewater effluent sampling and on-site fish exposures: trace organic contaminant concentrations, bacteria concentrations, and fish responses - Hutchinson, Minnesota, 2022 Data collected from wastewater effluent sampling and on-site fish exposures: trace organic contaminant concentrations, bacteria concentrations, and fish responses - Hutchinson, Minnesota, 2022
This dataset consists of trace organic contaminant concentrations and bacteria counts in wastewater effluents, and observed responses in fish exposed to effluents. The study was conducted from April to September 2022 at a facility located in Hutchinson, Minnesota. Nine pairs of primary-treated, activated sludge secondary treated, and membrane bioreactor secondary treated wastewater were
Model application and calibration load data for seasonally dynamic total nitrogen and total phosphorus SPARROW models developed for watersheds draining to Washington waters of the Salish Sea, 2005 through 2020 Model application and calibration load data for seasonally dynamic total nitrogen and total phosphorus SPARROW models developed for watersheds draining to Washington waters of the Salish Sea, 2005 through 2020
This data release contains two data sets: 1) the model application data for a set of dynamic total nitrogen (TN) and total phosphorus (TP) SPARROW (SPAtially Referenced Regression On Watershed attributes; Schwarz and others, 2006, https://doi.org/10.3133/tm6B3) load models that were developed for watersheds draining to Washington waters of the Salish Sea (Puget Sound region) 2005 through...
Micro-Raman spectroscopy parameters investigating biochar's carbon stability and structural development in comparison to fusinite and semifusinite Micro-Raman spectroscopy parameters investigating biochar's carbon stability and structural development in comparison to fusinite and semifusinite
Semifusinite and fusinite macerals are formed through carbonization of plant material in naturally occurring wildfires. Both macerals, belonging to the inertinite maceral group, are carbon-rich and oxygen-poor, and are typical constituents of charcoal. The charring of plant material into charcoal serves as nature’s method for storing carbon over geological timescales. The permanence and...
Sr/Ca, Oxygen Isotope, and Linear Extension Data for Five Holocene Orbicella faveolata Corals from Dry Tortugas and Marquesas Keys, Florida, USA Sr/Ca, Oxygen Isotope, and Linear Extension Data for Five Holocene Orbicella faveolata Corals from Dry Tortugas and Marquesas Keys, Florida, USA
This data release contains new, 40–70-year long sub-annual strontium-to-calcium ratio (Sr/Ca) records and linear extension measurements from five mid-to-late Holocene, Orbicella faveolata corals from the Dry Tortugas National Park (DT) and Marquesas Keys (MK), Florida (FL). U.S. Geological Survey (USGS) researchers used these Sr/Ca data to calculate sea-surface temperature (SST) using...