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#1 Federal

NIST Atomic Energy Levels and Spectra Bibliographic Database

Organization: National Institute of Standards and Technology
Dataset Last Updated: September 19, 2014

References contained in this database are from Bibliography on Atomic Energy Levels and Spectra, NBS Special Publication 363 and Supplements, as well as current references since the last published...

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Search relevance: 1.00 | Views last month: 24 | Catalog Last Checked: August 03, 2026 at 03:49 AM

#2 Federal

Mineral Commodity Summaries 2024 - HELIUM Data Release

Organization: Department of the Interior
Dataset Last Updated: January 30, 2024 at 12:00 AM

This data release contains the U.S. salient statistics and world production data extracted from the HELIUM data sheet of the USGS Mineral Commodity Summaries 2024.

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Search relevance: 1.00 | Views last month: 22 | Catalog Last Checked: August 01, 2026 at 03:54 AM

#3 Federal

Snake River Plain FORGE: Site Characterization Data

Organization: Department of Energy
Dataset Last Updated: July 07, 2025 at 04:18 PM

The site characterization data used to develop the conceptual geologic model for the Snake River Plain site in Idaho, as part of phase 1 of the Frontier Observatory for Research in Geothermal...

Search relevance: 1.00 | Views last month: 21 | Catalog Last Checked: August 03, 2026 at 12:59 AM

#4 Federal

Global Ocean Data Analysis Project version 2.2023 (GLODAPv2.2023) (NCEI Accession 0283442)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: June 25, 2025 at 12:00 AM

This dataset consists of the GLODAPv2.2023 data product composed of data from 1108 scientific cruises covering the global ocean between 1972 and 2021. It includes full depth discrete bottle...

Search relevance: 1.00 | Views last month: 17 | Catalog Last Checked: August 03, 2026 at 04:30 AM

#5 Federal

Mineral Commodity Summaries 2025 - HELIUM Data Release

Organization: Department of the Interior
Dataset Last Updated: April 08, 2025 at 12:00 AM

This data release contains the U.S. salient statistics and world production data extracted from the HELIUM data sheet of the USGS Mineral Commodity Summaries 2025.

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Search relevance: 1.00 | Views last month: 15 | Catalog Last Checked: August 01, 2026 at 06:08 AM

#6 Federal

Dataset of Helium Concentrations in United States Wells

Organization: Department of the Interior
Dataset Last Updated: June 14, 2021 at 12:00 AM

This dataset provides national scale location information for known, publicly available, data on helium gas concentrations, reported in mol%. The dataset was created as part of the effort by the...

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Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: August 01, 2026 at 03:50 AM

#7 Federal

NIST Atomic Spectra Database - SRD 78

Organization: National Institute of Standards and Technology
Dataset Last Updated: November 01, 2017

This database provides access and search capability for NIST critically evaluated data on atomic energy levels, wavelengths, and transition probabilities that are reasonably up-to-date. The Atomic...

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Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: August 03, 2026 at 03:49 AM

#8 Federal

Utah FORGE: Final Topical Report 2018

Organization: Department of Energy
Dataset Last Updated: March 09, 2020 at 10:59 PM

This is the final topical report for the Phase 2B Utah FORGE project, which is located near Roosevelt Hot Springs, Utah. This PDF format report details results associated with the conceptual...

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Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: August 03, 2026 at 12:59 AM

#9 Federal

Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Roger Revelle cruise CLIVAR_I05_2009 (EXPOCODE 33RR20090320) in the Indian Ocean from 2009-03-20 to 2009-05-15 (NCEI Accession 0108075)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: February 23, 2016 at 12:00 AM

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, temperature, salinity, dissolved oxygen, nutrients,...

Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 03, 2026 at 02:15 AM

#10 Federal

Partial pressure (or fugacity) of carbon dioxide, dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from ATLANTIS in the North Atlantic Ocean from 2012-04-19 to 2012-05-15 (NCEI Accession 0108160)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: February 23, 2016 at 12:00 AM

This dataset includes discrete sample and profile data collected from ATLANTIS in the North Atlantic Ocean from 2012-04-19 to 2012-05-15. These data include AIR-SEA DIFFERENCE - PARTIAL PRESSURE...

Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 03, 2026 at 02:16 AM

#11 Federal

Partial pressure (or fugacity) of carbon dioxide, dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the METEOR in the South Atlantic Ocean from 1994-03-29 to 1994-05-11 (NCEI Accession 0115177)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: June 06, 2026 at 12:00 AM

This dataset includes chemical, discrete sample, physical and profile data collected from METEOR in the South Atlantic Ocean from 1994-03-29 to 1994-05-11 and retrieved during cruise WOCE_A08....

Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 03, 2026 at 02:27 AM

#12 Federal

Global Ocean Data Analysis Project version 2.2019 (GLODAPv2.2019) (NCEI Accession 0186803)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: June 24, 2025 at 12:00 AM

This dataset consists of GLODAPv2.2019 data product composed of data from 840 scientific cruises covering the global ocean between 1972 and 2017. It includes full depth discrete bottle...

Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 03, 2026 at 03:20 AM

#13 Federal

NIST Handbook of Basic Atomic Spectroscopic Data - SRD 108

Organization: National Institute of Standards and Technology
Dataset Last Updated: August 01, 2005

This handbook provides a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. The compilation includes energy levels, ionization energies,...

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Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 03, 2026 at 03:49 AM

#14 Federal

Global Ocean Data Analysis Project, Version 2 (GLODAPv2) (NCEI Accession 0162565)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: June 24, 2025 at 12:00 AM

This data product is composed of data from 724 scientific cruises covering the global ocean. It includes data assembled during the previous interior ocean data synthesis efforts GLODAPv1.1 (Global...

Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: August 03, 2026 at 02:58 AM

#15 Federal

NIST Atomic Spectral Line Broadening Bibliographic Database

Organization: National Institute of Standards and Technology
Dataset Last Updated: September 19, 2014

This interactive database, maintained by the NIST Atomic Spectroscopy Data Center, contains more than 6000 references, dating from 1889 through current year and is updated regularly in intervals...

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Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 03, 2026 at 03:49 AM

#16 Federal

Calculated values of the second dielectric and refractivity virial coefficients of helium, neon, and argon.

Organization: National Institute of Standards and Technology
Dataset Last Updated: April 23, 2020

Values of second dielectric and refractivity virial coefficients computed, with rigorous accounting for quantum effects, from state-of-the-art pair potentials and interaction polarizabilities. ...

Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 03, 2026 at 03:50 AM

#17 Federal

Dissolved inorganic carbon, total alkalinity, water temperature, salinity and other variables collected from discrete sample and profile observations during NOAA Ship Malcolm Baldrige cruise CGC_90 (EXPOCODE 33MW19900222) in the Pacific and Southern Oceans from 1990-02-22 to 1990-04-16 (NCEI Accession 0000183)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: December 10, 2016 at 12:00 AM

This dataset includes dissolved inorganic carbon, total alkalinity, water temperature, salinity, chlorofluorocarbons (CFCs), carbon-13 and other variables collected from discrete sample and...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 03, 2026 at 01:08 AM

#18 Federal

Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from NOAA Ship DISCOVERER in the Gulf of Alaska and North Pacific Ocean from 1991-03-07 to 1991-04-07 (NCEI Accession 0115175)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: December 19, 2013 at 12:00 AM

This dataset includes chemical, discrete sample, physical and profile data collected from NOAA Ship DISCOVERER in the Gulf of Alaska and North Pacific Ocean from 1991-03-07 to 1991-04-07 and...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 03, 2026 at 02:27 AM

#19 Federal

Temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from JOHAN HJORT in the Barents Sea, North Greenland Sea and Norwegian Sea from 2000-05-27 to 2000-06-20 (NCEI Accession 0115683)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: February 22, 2017 at 12:00 AM

This dataset includes biological, chemical, discrete sample, physical and profile data collected from JOHAN HJORT in the Barents Sea, North Greenland Sea and Norwegian Sea from 2000-05-27 to...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 03, 2026 at 02:28 AM

#20 Federal

Temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the JOHAN HJORT in the North Greenland Sea and Norwegian Sea from 1991-11-05 to 1991-11-27 (NCEI Accession 0115685)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: January 08, 2014 at 12:00 AM

This dataset includes chemical, discrete sample, physical and profile data collected from JOHAN HJORT in the North Greenland Sea and Norwegian Sea from 1991-11-05 to 1991-11-27 and retrieved...