The GEOTRACES Intermediate Data Product 2021 (IDP2021).

The GEOTRACES Intermediate Data Product 2021 (IDP2021) is the third release of publicly available data products from the international GEOTRACES programme, and contains trace element and isotope (TEI) data reported before the end of 2020. The TEI data in the IDP2021 are quality controlled by careful assessment of intercalibration results and multi-laboratory data comparisons at crossover stations. The IDP2021 represents a major new data release. Compared to IDP2017, IDP2021 improves data coverage significantly in all ocean basins, especially in the Arctic, the Indian Ocean and the Pacific. Overall, the new data product contains more than twice the number of cruises, stations and actual data values. IDP2021 also contains data for a large suite of biogeochemical parameters, as well as aerosol and rain data characterising atmospheric TEI sources and, for the first time, cryosphere TEI data from the Arctic. IDP2021 is comprised of five packages of digital data: (1) seawater discrete water sample data including TEIs as well as standard hydrographic parameters, (2) aerosol data, (3) precipitation data, (4) cryosphere data and (5) seawater sensor data. The digital data are available in ASCII, netCDF, and Ocean Data View collection formats, with data quality flags and 1-σ data error values where available. Metadata concerning data originators, analytical methods and original publications related to the data are linked in an easily accessible way. The GEOTRACES IDP2021 is released under the Creative Commons By Attribution (CC-BY) Licence 4.0 as described in the Fair Use Agreement.

(1) Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research; (2) Laboratoire d'Etude en Géophysique et Océanographie Spatiales; (3) British Oceanographic Data Centre, Liverpool; (4) Lamont-Doherty Earth Observatory; (5) Midi-Pyrenees Observatory, Geoscience and Environmental Science; (6) British Oceanographic Data Centre, Southampton; (7) Florida State University Department of Oceanography; (8) University of Southampton School of Ocean and Earth Science; (9) University of British Columbia Department of Earth and Ocean Sciences; (10) University of Liverpool Department of Earth, Ocean and Ecological Sciences; (11) Max Planck Institute for Chemistry (Otto Hahn Institute); (12) GEOMAR Helmholtz Centre for Ocean Research, Kiel (East Shore Campus); (13) NOAA Weather Program Office; (14) Uni. of Alaska, Institute of Marine Sciences; (15) Japan Agency for Marine-Earth Science and Technology, Institute of Biogeosciences; (16) Swedish Museum of Natural History; (17) Swiss Federal Institute of Technology Institute of Geochemistry and Petrology; (18) Stanford University, Environmental Earth System Science Department; (19) Woods Hole Oceanographic Institution Department of Marine Chemistry and Geochemistry; (20) Princeton University Department of Geosciences; (21) University of Saskatchewan Department of Geological Sciences; (22) Royal Netherlands Institute for Sea Research; (23) Louisiana State University Department of Oceanography and Coastal Sciences; (24) GEOMAR Helmholtz Centre for Ocean Research, Kiel (West Shore Campus); (25) Scripps Institution of Oceanography; (26) University of Delaware, Department of Earth Sciences; (27) Wayne State University Department of Geology; (28) Bermuda Institute of Ocean Sciences; (29) Instrumentation, Analytical Resources and Monitoring in Geophysics and Oceanography; (30) University of Oldenburg Institute for Chemistry and Biology of the Marine Environment; (31) Department of Fisheries and Oceans, Canada; (32) University of Toronto Department of Geology; (33) Mediterranean Institute of Oceanography, Luminy Campus (UMR 7294); (34) Antarctic Climate and Ecosystems Cooperative Research Centre; (35) University of California Santa Cruz Institute of Marine Sciences; (36) Institute for Marine and Antarctic Studies; (37) CNRS Institute of Earth Physics, Paris; (38) Massachusetts Institute of Technology Department of Earth Atmospheric and Planetary Sciences; (39) IFREMER, Brest; (40) University of Oxford Department of Earth Sciences; (41) University of California Santa Barbara Department of Ecology, Evolution and Marine Biology; (42) University of South Florida College of Marine Science; (43) NOAA Pacific Marine Environmental Laboratory; (44) Skidaway Institute of Oceanography, Savannah; (45) University of Washington School of Oceanography; (46) CSIRO Marine and Atmospheric Research (Hobart); (47) Xiamen University State Key Laboratory of Marine Environmental Science; (48) Oceanography and Climate Laboratory; (49) Swiss Federal Institute of Technology, Institute of Particle Physics; (50) University of Seville, National Center of Accelerators; (51) University of East Anglia School of Environmental Sciences; (52) Victoria University of Wellington, School of Geography, Environmental and Earth Sciences; (53) NASA Goddard Space Flight Center; (54) Laboratory of Marine Environmental Science (UMR CNRS 6539); (55) National University of Singapore, Tropical Marine Science Institute; (56) University of Minnesota Department of Earth Sciences; (57) Physical Research Laboratory at Ahmedabad; (58) University of Delaware College of Earth, Ocean and Environment; (59) University of Chicago Department of the Geophysical Sciences; (60) University of Edinburgh School of GeoSciences; (61) National University of Ireland, Galway; (62) University of Victoria School of Earth and Ocean Sciences; (63) Old Dominion University Department of Ocean, Earth and Atmospheric Sciences; (64) Imperial College London Department of Earth Science and Engineering; (65) Free University of Brussels Laboratory of Analytical and Environmental Chemistry; (66) University of Arizona, Department of Molecular and Cellular Biology; (67) Mediterranean Institute of Oceanography, Luminy; (68) University of Zaragoza, Department of Analytical Chemistry; (69) Institute for Chemistry and Biology Of The Marine Environment; (70) Australian National University Research School of Earth Sciences; (71) Rutgers University - Newark, Department of Earth and Environmental Sciences; (72) Rosenstiel School of Marine and Atmospheric Science; (73) Texas A+M Department of Oceanography; (74) Royal Museum for Central Africa Department of Geology; (75) Laval University, Department of Biology; (76) University of Tokyo, Atmosphere and Ocean Research Institute; (77) Independent University of Barcelona Institute of Science and Environmental Technology; (78) University of Otago, Department of Chemistry; (79) University of Southern Mississippi Department of Marine Science; (80) Pontifical Catholic University of Rio de Janeiro Department of Chemistry; (81) University of Connecticut, Department of Marine Sciences; (82) Villefranche-sur-Mer Oceanological Observatory; (83) Wright State University, Department of Earth & Environmental Sciences; (84) University of Technology, Sydney, Plant Functional Biology and Climate Change Cluster; (85) Department of Oceanography, University of Hawai'i at Manoa; (86) University of Cape Town, Department of Oceanography; (87) University of Groningen Energy and Sustainability Research Institute; (88) National Oceanography Centre, Liverpool; (89) Woods Hole Oceanographic Institution - Geology and Geophysics Department; (90) Woods Hole Oceanographic Institution Department of Physical Oceanography; (91) University of Southern California, USA; (92) University of California, Santa Barbara, Marine Science Institute; (93) University of Bremen Institute of Environmental Physics; (94) Dalhousie University Department of Oceanography; (95) Pukyong National University, Department of Oceanography; (96) National Oceanography Centre, Southampton; (97) Nagasaki University, Graduate School of Fisheries Science and Environmental Studies; (98) Polish Academy of Sciences Institute of Oceanology; (99) Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology; (100) University of South Carolina Department of Biological Sciences; (101) University College London, Department of Earth Sciences; (102) Linkoping University, Department of Health, Medicine and Caring Sciences; (103) University of Leeds School of Geography; (104) Chinese Academy of Sciences, Institute of Earth Environment; (105) Institute for Development for Research (IRD), Noumea; (106) University of South Carolina School of the Earth, Ocean and Environment; (107) University of California, Santa Cruz, Department of Microbiology and Environmental Toxicology; (108) University of Plymouth, School of Geography, Earth and Environmental Sciences; (109) Japan Oceanographic Data Centre; (110) University of Rhode Island Graduate School of Oceanography; (111) McGill University, Canada; (112) Institute of Low Temperature Sciences, Hokkaido University; (113) University of Victoria, Department of Biochemistry and Microbiology; (114) California Institute of Technology Division of Geological and Planetary Sciences; (115) University of Cambridge Department of Earth Sciences; (116) Free University of Brussels, Department of Geosciences, Environment and Society; (117) Jacobs University, School of Engineering and Science; (118) University of California Irvine Department of Earth System Science; (119) Dalhousie University, Department of Biology; (120) Bigelow Laboratory for Ocean Sciences; (121) University of Alaska, Fairbanks, International Arctic Research Center; (122) National Research Council, Biophysics Institute, Pisa; (123) University of Bristol School of Earth Sciences; (124) Climate and Environmental Sciences Laboratory; (125) Swiss Polar Institute; (126) Rutgers University Institute of Marine and Coastal Sciences; (127) Indian Space Research Organisation, National Remote Sensing Centre; (128) Kyoto University Institute for Chemical Research; (129) École Normale Supérieure, Geosciences Department; (130) University of Otago, Department of Physics; (131) University of Tasmania, Central Science Laboratory; (132) Scottish Association for Marine Science; (133) Portuguese Institute of Ocean and Atmosphere; (134) University of Manitoba, Department of Environment and Geography; (135) Academia Sinica Taiwan, Institute of Earth Sciences; (136) University of Rochester, Department of Earth and Environmental Sciences; (137) Swiss Federal Institute of Technology, Department of Physics; (138) Texas A&M University - Corpus Christi, Department of Life Sciences; (139) Plymouth Marine Laboratory; (140) University of Toyama, Graduate School of Science and Engineering