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OAS accession Detail for 0231437, meta_version: 1. Current meta_version is: 3
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| accessions_id: | 0231437 | archive |
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| Title: | Nutrient, chlorophyll and oxygen data from CTD water samples, USCGC Healy (HE1702), PMEL and EcoFOCI. DBO-NCIS 2017 study, 2017-08-26 to 2017-09-15. (NCEI Accession 0231437) |
| Abstract: | Discrete water samples from 141 CTD casts were collected in the Chukchi Sea from US Coast Guard Cutter Healy (HE1702, August 26 to September 15, 2017) as part of the 2017 Distributed Biological Observatory – Northern Chukchi Integrated Study (DBO-NCIS). The goal of DBO-NCIS was to document and understand ongoing changes to the Pacific-Arctic ecosystem in light of the changing physical drivers. Sampling and transects on this research cruise were along standard DBO lines in areas 1, 3, 4 and 5. Nutrients and chlorophyll samples were collected at all process stations in support of benthic studies and net tows. A total of 410 nutrient samples were collected, filtered, and stored frozen at -80 degrees C. They were processed post-cruise at the Pacific Marine Environmental Laboratory (PMEL) for determination of nitrate, nitrite, ammonium, silicate and phosphate concentrations. Total chlorophyll was collected at 71 stations at standard depths of surface, 10 m, 20 m, 30 m, 40 m, and 50 m or bottom depth when stations were shallower than any standard depth. Samples were filtered through GF/F glass fiber filters under low vacuum, and the filters were stored frozen at -80 degrees C. Samples were analyzed at NOAA/PMEL. For calibration of the CTD oxygen probe, 48 samples were samples collected for dissolved oxygen. See data type descriptions for more processing details. Data have been submitted in csv format with a 1-line header defining columns. Related profile data from CTD instruments were processed and are available at WHOI. |
| Date received: | 20210421 |
| Start date: | 20170828 |
| End date: | 20170913 |
| Seanames: | Bering Sea, Chukchi Sea |
| West boundary: | -175.3 |
| East boundary: | -157.1 |
| North boundary: | 73.6 |
| South boundary: | 62 |
| Observation types: | in situ |
| Instrument types: | Niskin bottle |
| Datatypes: | CHLOROPHYLL A CONCENTRATION, PHAEOPIGMENT CONCENTRATION |
| Submitter: | |
| Submitting institution: | US DOC; NOAA; OAR; Pacific Marine Environmental Laboratory |
| Collecting institutions: | US DOC; NOAA; OAR; Pacific Marine Environmental Laboratory |
| Contributing projects: | EcoFOCI |
| Platforms: | Healy (33HQ) |
| Number of observations: | |
| Supplementary information: | Submission Package ID: T82P2G |
| Availability date: | |
| Metadata version: | 1 |
| Keydate: | 2021-04-26 13:00:35+00 |
| Editdate: | 2021-04-26 13:01:19+00 |