AndreaBozzo/ceres-open-data-index huggingface dataset:
Iowa Fire Department Census

This dataset is a subset of the National Fire Department Census which provides an address listing of U.S. fire departments registered with U.S. Fire Administration (USFA) as well as some basic information about each fire department.  The purpose of the census is to create a national database for use by the fire protection and prevention communities, allied professions, the general public and the U.S. Fire Administration (USFA). USFA uses the database to conduct special studies, guide program decisionmaking, and to improve direct communication with individual fire departments.

Tags: fema, fire-department, u-s-fire-administration, usfa
Organization: State of Iowa
Employment Benefit Analysis: How Premiums are Paid

The Employment Benefit Analysis was published in 2023. The data reported was collected through an employer survey in the State of Iowa.

This dataset shows how employers reported that the premiums of the health insurance offered to employees is covered. The information is provided by type of coverage (either single or family). The ways premiums are covered include: 100% employee paid, 100% employer paid, or shared by the employer and employee. The data can be viewed by area (statewide, county, or LWDA), by industry of the employer, and by employer size.

Tags: benefits
Organization: State of Iowa
Employment Benefit Analysis: Benefits Offered to Full-Time or Part-Time Employees 2023

The Employment Benefit Analysis was published in 2023. The data reported was collected through an employer survey in the State of Iowa.

This dataset shows the percentage of employers who reported they offer benefits to only full-time employees, only part-time employees, or to both full-time and part-time employees. The data can be viewed by area (statewide, county, or LWDA), by industry of the employer, and by employer size.

Tags: benefits
Organization: State of Iowa
Iowa Family Investment Program Recipients and Grants by Month and County

The Family Investment Program (FIP) is Iowa's Temporary Assistance to Needy Families (TANF) program. FIP provides cash assistance to needy families, as they become self-supporting so children may be cared for in their own homes or in the homes of relatives.  Data are provided on the number of cases (families) served, the number of recipients served and the dollar value of the payments provided summed by month and county starting January 2011 and updated monthly. A case is defined as a family group who receives FIP assistance together. A recipient is an individual on a FIP case.

Tags: family-investment-program, fip, public-assistance, tanf
Organization: State of Iowa
FRA Office Locations

The Federal Railroad Administration (FRA) Office Locations dataset was created on September 20, 2024 from the Federal Railroad Administration (FRA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). These locations show FRA office locations, based on railroad company and Safety Management Teams (SMTs). The Safety Management Teams serve as the Office of Railroad Safety's main liaison with the senior leadership of the Nation's railroads. Each of the nine Safety Management Teams is assigned to either a Class I railroad or a group of railroads and provides safety oversight of the respective railroad system(s). The Safety Management Teams represent FRA with the railroads, and they communicate and coordinate with FRA's Staff Directors, Accident Analysis Branch, Audit Management Program, and other Safety Management Teams.   A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1522275

Tags: atlas, database, national, national transportation atlas database, ntad, point, rail, safety management teams, smts, transportation, usa, vector
Organization: Department of Transportation
Next Generation Accountable Care Organization Model Data

The Next Generation Accountable Care Organization (NGACO) dataset includes summary‑level information on organizational performance, including aligned beneficiary counts, spending benchmarks, performance‑year expenditures, shared savings or losses, quality performance, and high‑level breakdowns of Medicare service‑category spending.

Tags: accountable-care-organizations, coordinated-care, financials, medicare, original-medicare, payment-models, value-based-care
Organization: U.S. Department of Health & Human Services
MetaData_2025-01-27_Inhibition-of-Fin-Regeneration-in-Fathead-Minnow-(Pimephales-promelas)-by-a-Potent-Synthetic-Glucocorticoid-and-Development-of-Adverse-Outcome-Pathway-334

Metadata for both preliminary and definitive studies, including water quality parameters, experimental takedown data, fin measurements, and RT-PCR data. 

This dataset is associated with the following publication:
Cole, A., G. Ankley, J. Cavallin, J. Collins, K. Jensen, M. Kahl, A. Kasparek, B.R. Kwon, Y. Shmaitelly, L. Langan, D. Villeneuve, and B. Brooks. Inhibition of Fin Regeneration in Fathead Minnow (Pimephales promelas) by a Potent Synthetic Glucocorticoid, and Development of Adverse Outcome Pathway 334.   ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 59(19): 9497-9506, (2025).

Tags: adverse-outcome-pathways-aops, computational-toxicology, endocrine-disrupting-chemicals-edcs, new-approach-methods-alternatives-to-animal-testing
Organization: U.S. Environmental Protection Agency
Data for Projecting and valuing climate change impacts on anxiety and depression in the contiguous United States

The data saved here are for a forthcoming article, Projecting and valuing climate change impacts on anxiety and depression in the contiguous United States. 

This dataset is associated with the following publication:
Belova, A., K. Munson, D. Keeler, M. Sluder, A. Kiesel, M.C. Sarofim, R. Silva, S. Anenberg, S. Clayton, and C.A. Gould. Projecting and valuing climate change impacts on anxiety and depression in the contiguous USA: a damage function approach.   The Lancet Planetary Health. Elsevier B.V., Amsterdam,  NETHERLANDS, 10(2): 101426, (2026).

Tags: cira, climate-change, econometrics, environmental-health, mental-health, public-health
Organization: U.S. Environmental Protection Agency
Examining environmental matrix effects on quantitative non-targeted analysis estimates of per- and polyfluoroalkyl substances

Supplementary information for "Examining environmental matrix effects on quantitative non-targeted analysis estimates of per- and polyfluoroalkyl substances". 

This dataset is associated with the following publication:
Pu, S., J. McCord, R. Dickman, N. Sayre-Smith, H. Sepman, A. Kruve, D. Aga, and J. Sobus. Examining environmental matrix effects on quantitative non-targeted analysis estimates of per- and polyfluoroalkyl substances.   Analytical and Bioanalytical Chemistry. Springer, New York, NY, USA, 417(10): 2097-2110, (2025).

Tags: accuracy, ionization-efficiency, reliability, sludge, uncertainty, water
Organization: U.S. Environmental Protection Agency
Knowledge Management -

This is an FHWA initiative to promote knowledge sharing across the organization; it includes a FHWA external Microsoft SharePoint 2010 services, internal Microsoft SharePoint 2010 services, and Adobe Connect Professional Web conferencing services for knowledge sharing communities. There are two SharePoint environments that are not connected. The two environments are totally separate.The internal environment is non-Public and accessible to DOT only. The internal environment is managed by OST. It hosts 184 top level SharePoint sites serving the FHWA. The external environment is Public with some restricted SharePoint sites. External environment is managed by FHWA.The external SharePoint environment hosts 16 top level SharePoint sites serving the FHWA, state and local DOTs, and the surface transportation community.

Tags: collaboration, community-exchange, discussion-board
Organization: Department of Transportation
HPMS Statewide Summaries 2019

The Highway Performance Management System (HPMS) Statewide Summaries table contains demographic and system length estimates for all Urban and Rural public roads, functionally classified as minor collector in rural areas or local in any area, summarized by State. In addition, this dataset contains daily vehicle-miles traveled (VMT) estimates for all public roads located in Small Urban areas, functionally classified as minor collector or local.

Tags: hpms, hppi, vmt
Organization: Department of Transportation
Forecast

The TransBorder Freight Data Forecast Model is a specialized analytical tool developed by the Bureau of Transportation Statistics (BTS). Its primary purpose is to "close the gap" between real-time economic activity and the official, validated trade data released by the government.

Because official transborder statistics (derived from U.S. Census Bureau trade data) typically carry a two-month processing delay, this model provides stakeholders with a "nowcast"—an estimated view of current freight volumes before the official numbers are finalized.

Tags: freight-transportation
Organization: Department of Transportation
HPMS Roadway Events Data 2022

Roadway attributes datasets in the Highway Performance Monitoring System (HPMS) consist of three separate tables: the Road Designations Table, the Road Identifications Table, and the Road Events Table.  The Roads Event Table data items include Inventory, Lanes, Intersections, Traffic, Control, Pavement, Terrain, and Travel Time Code.

Tags: hpms, hppi
Organization: Department of Transportation
Long-Term Pavement Performance (LTPP)

Long-term Pavement performance, construction, traffic, and environmental data for more than 2500 pavement sections in the United States and Canada. More than a dozen experimental designs address specially constructed and existing asphalt and concrete pavements, and maintenance and rehabilitation strategies. Data collection has been on-going since 1990. About one third of the pavement sections are still under study. New warm-mix asphalt concrete pavement overlay sections are currently being recruited and constructed.

Tags: asphalt-concrete, continuously-reinforced-concrete-pavement, fwd, ltpp, maintenance, materials-testing, pavement, pavement-distresses, pavement-performance, portland-cement-concrete, profile, rehabilitation, texture, traffic-loading
Organization: Department of Transportation
Dataset: Density-dependent behaviors shape spatial redistribution of mountain ungulate abundance after a population die-off

Data and R code herein was involved in the analytical work associated with the following abstract from the Landscape Ecology manuscript entitled "Density-dependent behaviors shape spatial redistribution of mountain ungulate abundance after a population die-off":

Context
Density dependence can affect patterns of animal abundance and interact with environmental disturbances. Resource restrictions from environmental disturbances may increase competition to cause population die-offs, after which competition may decrease. For group-forming prey species, theory suggests reduced competition enables changes in density-dependent group formation and habitat selection. Because resources and environmental disturbances are heterogeneously dispersed in space, subsequent density-dependent behavioral shifts may be heterogeneous and drive spatial patterns of populations after die-offs.

Objectives
We sought to: (1) assess density-dependent behavioral changes in group size and habitat selection before and after a die-off, and (2) explore the role of objective 1 on the spatial redistribution of population abundance after a die-off.

Methods
We used a 15-year dataset on Dall’s sheep (Ovis dalli) within the Brooks Range in Alaska, USA. We fitted a joint hierarchical distance sampling model with posterior sampling via Markov chain Monte Carlo to track changes in group size, habitat selection, and spatial abundance.

Results
After a die-off (> 50% population reduction), we documented 62% and 33% increases in sizes of nursery and adult-only groups, respectively. Nursery-group occurrence was concentrated at higher elevations after the die-off, as predicted, and declined in areas with prolonged snow cover. Sheep abundance within nursery groups declined in areas with late snowmelt, while declines in sheep within adult groups were more homogeneous.

Conclusions
Spatial heterogeneity of resources and environmental disturbances can interact in a density-dependent fashion to affect behavioral changes that shape spatial redistributions of populations after die-offs. Our findings support interactions between density-dependent theories on habitat selection and group formation and highlight a smaller core area that appears critical for sheep conservation after die-offs.

Tags: alaska, dall-sheep, dalls-sheep, fannins-sheep, ovis-dalli, sheep, stones-sheep
Organization: Department of the Interior
Glacial legacies influence riparian vegetation expansion on subarctic Alaska floodplains (2026, Journal of Geophysical Research: Biogeosciences)

This dataset underlies the analysis of riparian ecosystems conditions and change in 9 glacierized and 8 nonglacierized catchments in Denali National Park and Preserve, Alaska by Frost et al., entitled “Glacial legacies influence riparian vegetation expansion on subarctic Alaska floodplains” (2026, Journal of Geophysical Research: Biogeosciences).

This data package consists of four CSV datafiles, four GIS shapefiles that contain the CSV data in a geospatial format, and a CSV file containing field definitions. Each CSV is described below. The CSV descriptions also apply to the shapefiles.

1. field_definitions.csv. This is a metadata file providing definitions for each field in the subsequent four CSV files and the four shapefiles.

2. stations.csv. This CSV file provides environmental data, spatial data, and imagery metadata for the 170 sampling stations. Each station is located along a National Hydrography Dataset (NHD) flowline pertaining to one of the 17 study streams (see streams.csv, below). The accompanying stations shapefile can be used to display stations directly in a GIS, or the CSV file can be imported into a GIS and the stations drawn using the X/Y coordinates. 

3. points.csv. This CSV file provides riparian ecotype interpretation, environmental data, and spatial data for the 17,000 total sample points (100 points per station). Each point is located in the center of 30 m grid cells used for Alaska statewide data products derived from Landsat data. The accompanying points shapefile can be used to display sample points directly in a GIS, or the CSV file can be imported into a GIS and the points drawn using the X/Y coordinates.

4. streams.csv. This CSV file provides the names and attributes of the 17 streams considered in the study. The accompanying stream shapefile can be used to display streams in a GIS.

5. channels.csv. This CSV file provides the attributes of active channels interpreted for the 170 sampling stations using early and late period imagery. The accompanying channels shapefile can be used to display the active channels in a GIS.

Tags: ecological-framework-biological-integrity-focal-species-or-communities-forest-woodland-communit, ecological-framework-biological-integrity-focal-species-or-communities-riparian-communities, ecological-framework-biological-integrity-focal-species-or-communities-shrubland-communities, ecological-framework-biological-integrity-focal-species-or-communities-sparsely-vegetated-commu, ecological-framework-biological-integrity-focal-species-or-communities-vegetation-complex, ecological-framework-geology-and-soils-geomorphology-stream-river-channel-characteristics, nps-gov-subject-site-climate-change, nps-gov-subject-site-forests-woods-shrublands, nps-gov-subject-site-gis-cartography-mapping, nps-gov-subject-site-watersheds
Organization: Department of the Interior
NPS Visitor Use Statistics Data Package, 2025

The NPS Social Science Program is responsible for coordinating visitor use
statistics reporting for units administered by the NPS. ‘Visitor Use Statistics’
refers to a formal set of statistics collected by the National Park Service that
address how many people visit parks and how long they stay. Program staff work
with parks to develop appropriate data collection procedures and provide quality
control for visitor use data. Such coordination ensures that visitor use data
are consistent and reliable throughout all units of the National Park System.
This data package contains data collected from 1979-2025.

Detailed instructions for the units that collect data, monthly visitation
summaries, and reports displaying trends in park visitation are available on the
NPS Visitor Use Statistics website (https://irma.nps.gov/Stats/).

Tags: public-use-statistics, social-science, statistics, visitation, visitation-statistics, visitor-use, visitor-use-statistics
Organization: Department of the Interior
HHS Data Inventory

The U.S. Department of Health and Human Services (HHS) publishes the HHS Data Inventory—a comprehensive metadata catalog of public and non-public data assets across the Department—in accordance with the Foundations for Evidence-Based Policymaking Act of 2018 (Evidence Act, Pub. L. 115-435). This inventory enhances information discovery, data usability, and government transparency by providing public visibility into data assets from all HHS Divisions.

The HHS Data Inventory is available in multiple formats, including machine-readable JSON, Excel (CSV) files, and open APIs for seamless integration and automated retrieval.

<b>Versions:</b>
<ul>
<li><b>118,403 metadata assets</b> (Version 2.2</a> CSV, published 03/27/26)</li>
<li>113,242 metadata assets (<a href="https://us-dhhs-aa.s3.us-east-2.amazonaws.com/kaw8-4tez_2026-02-27T11-53-28.csv">Version 2.1</a> CSV, published 02/27/26)</li>
<li>112,628 metadata assets (<a href="https://us-dhhs-aa.s3.us-east-2.amazonaws.com/kaw8-4tez_2025-12-19T16-20-11.csv">Version 2.0</a> CSV, published 12/18/25)</li>
<li>18,641 metadata assets (<a href="https://us-dhhs-aa.s3.us-east-2.amazonaws.com/kaw8-4tez_2025-09-22T17-52-03.csv">Version 1.1</a> CSV, published 9/22/25)</li>
<li>8,431 metadata assets (<a href="https://us-dhhs-aa.s3.us-east-2.amazonaws.com/kaw8-4tez_2025-07-30T16-18-24.csv">Version 1.0</a> CSV, published 07/30/25)</li>
</ul>
Public use of this metadata and open data assets helps identify gaps, errors, and opportunities for improvement. Your feedback is essential to enhancing metadata quality and the underlying data that matters most to you. HHS is committed to continuous improvement in information quality.

Please send suggestions to <a href="mailto:cdo@hhs.gov">cdo@hhs.gov</a>.

Tags: accountability, catalog, data, data-distribution, decisions, discoverability, efficiency, enterprise, evidence-based-guidelines, inventory
Organization: U.S. Department of Health & Human Services
Significant Guidance on Pipeline Safety Issued by the Pipeline and Hazardous Materials Safety Administration

A list of Significant Guidance documents, which include guidance document disseminated to regulated entities or the general public that may reasonably be anticipated to lead to an annual effect on the economy of $100 million or more or adversely affect in a material way the economy, a sector of the economy, productivity, competition, jobs, the environment, public health or safety, or State, local, or tribal governments or communities; create a serious inconsistency or otherwise interfere with an action taken or planned by another agency; materially alter the budgetary impact of entitlements, grants, user fees, or loan programs or the rights and obligations of recipients thereof; or raise novel legal or policy issues arising out of legal mandates, the President's priorities, or the principles set forth in Executive Order 12866, as further amended.

Tags: data-gov, law, phmsa, significant-guidance, transportation
Organization: Department of Transportation
Public Road Length by Functional System and State, 1980 - 2024 (HM-20)

Annual length of U.S. public roads in miles by functional system for each of the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-20.  (Note: In 2009, the Urban functional class of Collectors became Major Collectors and Minor Collectors.)

Tags: functional-system, highway-statistics, miles, roadway-bridges, rural-urban, state
Organization: Department of Transportation
Road Length by Measured Pavement Roughness, 2000-2024 (HM-64)

Annual road length by measured pavement roughness using the IRI (International Roughness Index) by functional class for the 50 states, DC, and PR from the Highway Statistics Series table HM-64.  Note: Missing 2010 and 2021,

Tags: functional-classification, highway-statistics, hppi, iri
Organization: Department of Transportation
BLM OR OHV Designation Publication Polygon Hub

OHV_DSG_PUB_POLY: This publication dataset represents areas where OHV (Off-Highway Vehicle) use on BLM lands is described in terms of Code of Federal Regulation (CFR) 8342 (http://cfr.vlex.com/vid/1-designation-criteria-19828841) as Open, Limited, or Closed and any special restrictions (designated routes only, seasonal use only). The designations are determined through the Land Use Planning process (Resource Management Plan (RMP)).

Tags: environment, geospatial, management, off-highway-vehicle, ohv, oregon, recreation, trails, transportation
Organization: Department of the Interior
Bat Activity Inventory at Pearl Harbor National Memorial 2024 - Open Format Dataset

We examined ‘ōpe‘ape‘a, or Hawaiian hoary bat (Lasiurus semotus; Chiroptera: Vespertilionidae), acoustic activity and surveyed potential roost trees at the Ford Island Chief Petty Officer’s (CPO) Bungalows Neighborhood of Pearl Harbor National Memorial (PERL) on the island of O‘ahu. We established four acoustic monitoring stations (PERL1–PERL4) that operated nightly to survey for ‘ōpe‘ape‘a echolocation activity from June to December 2024. Tree physiognomy data were collected at 12 potential roost trees and included tree species, tree height, diameter at breast height (DBH), percent canopy cover, distance to nearest tree, elevation, and canopy geometry. We collected 357,802 acoustic files over 672 station-nights across the four acoustic monitoring stations. ‘Ōpe‘ape‘a echolocation activity was detected over a total of 26 (4%) station-nights and during each month of the survey period except June. Echolocation activity peaked in September and October 2024, which is during the post-lactation and fledging period. These results represent a baseline for assessing ‘ōpe‘ape‘a acoustic activity and potential roosting resources in PERL.

Tags: acoustic-survey, bat-survey, echolocation, hawaiian-hoary-bat, imd, lasiurus-semotus, national-park-service, nps, nps-inventory-and-monitoring-division, nps-species-inventory-program, open-format, pearl-harbor-national-memorial, perl
Organization: Department of the Interior