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Federal
NIST Atomic Spectra Database - SRD 78 recent views
National Institute of Standards and Technology —
This database provides access and search capability for NIST critically evaluated data on atomic energy levels, wavelengths, and transition probabilities that are... -
Federal
NIST Atomic Energy Levels and Spectra Bibliographic Database recent views
National Institute of Standards and Technology —
References contained in this database are from Bibliography on Atomic Energy Levels and Spectra, NBS Special Publication 363 and Supplements, as well as current... -
Federal
A comprehensive global oceanic dataset of discrete measurements of helium isotope and tritium during the hydrographic cruises on various ships from 1952-10-21 to 2016-01-22 (NCEI Accession 0176626) recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset consists of global oceanic database of tritium and helium isotope measurements made by numerous researchers and laboratories over a period exceeding 60... -
Federal
NIST Atomic Transition Probability Bibliographic Database recent views
National Institute of Standards and Technology —
This interactive database, maintained by the NIST Atomic Spectroscopy Data Center, contains more than 8000 references, dating from 1914 through current year and is... -
Federal
Data for Tritium as an Indicator of Modern, Mixed and Premodern Groundwater Age recent views
Department of the Interior —
Categorical classification of groundwater age based on concentrations of tritium (3H) in groundwater can provide useful information for the assessment and... -
Federal
Groundwater age categories based on tritium concentrations in samples collected from the Mississippi River Valley alluvial aquifer and aquifers of the Mississippi embayment principal aquifer system recent views
Department of the Interior —
The Mississippi River Valley alluvial aquifer (MRVA) overlies and is bounded by several regional aquifers that make up the Mississippi embayment aquifer system (MEAS)... -
Federal
Data for timescales of water-quality change in a karst aquifer, south-central Texas recent views
Department of the Interior —
Continuous monitoring and discrete water-quality sampling were coupled in a karst aquifer to assess drivers and timescales of water-quality change. Water-quality data... -
Federal
Data for Tritium deposition in precipitation in the United States, 1953 - 2012 recent views
Department of the Interior —
This data release documents three Microsoft Excel tables that contain estimates of tritium in precipitation data for the continental United States. Table 1 contains... -
Federal
Dissolved inorganic carbon (DIC), total alkalinity (TALK), water temperature, salinity, nutrients and other measurements collected from discrete samples and profile observations during the R/V Melville GEOSECS_LEG3 cruise (EXPOCODE 318M19771204) in the Mediterranean Sea from 1977-12-04 to 1977-12-09 (NCEI Accession 0250907) recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset includes discrete profile data collected during the R/V Melville GEOSECS_LEG3 cruise (EXPOCODE 318M19771204) in the Mediterranean Sea from 1977-12-04 to... -
Federal
Compilation of dissolved organic matter (DOM) data obtained from global ocean observations from 1994 to 2021. Version 2 (NCEI Accession 0227166) recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset consists of measurements of dissolved organic matter (DOM) and other chemical and hydrographic parameters obtained during the global ocean observations... -
Federal
Data for Tritium deposition in precipitation in the United States, 1953 - 2023 (ver. 2.0, May 2023) recent views
Department of the Interior —
This data release documents three Microsoft Excel tables (and corresponding comma separated data files) that contain estimates of tritium in precipitation data for... -
Federal
NIST Atomic Spectral Line Broadening Bibliographic Database recent views
National Institute of Standards and Technology —
This interactive database, maintained by the NIST Atomic Spectroscopy Data Center, contains more than 6000 references, dating from 1889 through current year and is...