Particulate organic matter (PON, POC, POP) concentrations collected on R/V Roger Revelle cruise RR1604 along the hydrographic line IO9 in the Eastern Indian Ocean from March to April 2016 (NCEI Accession 0277907)
This dataset contains chemical data collected on R/V Roger Revelle during cruise RR1604 in the Bay of Bengal and Indian Ocean from 2016-03-22 to 2016-04-24. These data include particulate organic Carbon (POC) and particulate organic nitrogen. The instruments used to collect these data include Elemental Analyzer and Spectrophotometer. These data were collected by Dr Michael W. Lomas of Bigelow Laboratory for Ocean Sciences and Dr Adam Martiny of University of California-Irvine as part of the "Regional variation of phytoplankton diversity and biogeochemical functioning in the subtropical Indian Ocean (IO Phytoplankton)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2019-03-15.
The following is the text of the dataset description provided by BCO-DMO:
POM concentrations in the Eastern Indian Ocean (IO9N)
Dataset Description:
Particulate organic nitrogen, carbon, and phosphorus concentrations collected on R/V Roger Revelle cruise RR1604 along the hydrographic line IO9 in the Eastern Indian Ocean from March to April 2016.
The following is the text of the dataset description provided by BCO-DMO:
POM concentrations in the Eastern Indian Ocean (IO9N)
Dataset Description:
Particulate organic nitrogen, carbon, and phosphorus concentrations collected on R/V Roger Revelle cruise RR1604 along the hydrographic line IO9 in the Eastern Indian Ocean from March to April 2016.
Dataset Citation
- Cite as: Martiny, Adam; Lomas, Michael W. (2023). Particulate organic matter (PON, POC, POP) concentrations collected on R/V Roger Revelle cruise RR1604 along the hydrographic line IO9 in the Eastern Indian Ocean from March to April 2016 (NCEI Accession 0277907). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0277907. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0277907
Download Data |
|
Distribution Formats |
|
Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2016-03-22 to 2016-04-24 |
Spatial Bounding Box Coordinates |
West: 84.753
East: 110.455
South: -31.034
North: 17.883
|
Spatial Coverage Map |
General Documentation |
|
Associated Resources |
|
Publication Dates |
|
Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental Information | Acquisition Description: Water was collected from a circulating seawater system distributed via plastic tubing for POC/PON/POP around 3m deep. An underway system was chosen to vastly increase sampling coverage, replicate number, and sample volume. The water intake is located near the ship sea chest, which may have missed particle production in the subsurface. The circulating seawater was never turned off during the entirety of the transect and kept at a constant flow. Water was passed through a 30μm nylon mesh (Small Parts #7050-1220-000-12) to remove larger plankton and particles from the sample. Each replicate was collected into a separate 8.5L plastic carboys (Thermo Scientific, Waltham, Massachusetts) . In between stations, carboys were rinsed with 30 μm filtered sample water just prior to collection. Six 8 L seawater samples were divided into POC/PON and POP triplicates. Carboys were placed at ~45° angle to avoid particle settling below the nozzle. Each replicate was passed through a 25 mm pre-combusted (500°C for 5 h) GF/F filter (Whatman, Florham Park, New Jersey) with a nominal pore size of 0.7 μm. The vacuum filtration was an in-line setup with 25 mm filter holders connected to an aspirator pump at -0.08 MPa . POP filters were rinsed with 5 ml of 0.17 M Na 2 SO 4 to remove traces of dissolved phosphorus from the filter. All filters were stored in pre-combusted aluminum packets and immediately frozen at -80°C during the cruise and -20°C for shipment. Particulate Organic Carbon/Nitrogen: Prior to analysis, the filters for POC and PON were dried according to the JGOFS protocol 1 . The protocol has a detection range of 0.43-43.13 µM for POC and 0.037-7.39µM for PON in sea water 1 . First, the filters were dried in an incubator at 55°C for 24-48 h and then stored in a desiccator with concentrated HCl fumes for 24 h to remove inorganic carbonates. Secondly, the filters were dried again at 55°C for 48 h before being folded and packed into pre-combusted tin capsules (CE Elantech, Lakewood, New Jersey). The packaged filters are analyzed on a CN FlashEA 1112 Elemental Analyzer (Thermo Scientific, Waltham, Massachusetts) against an atropine standard curve (chemical formula C 17 H 23 NO 3 ). Particulate Organic Phosphorus: Particulate organic phosphorus (POP) were analyzed according to a modified ash-hydrolysis protocol 2 . Thawed filters were placed in along with a corresponding standard curve of KH 2 PO 4 . 2 mL of 0.017M MgSO 4 was added to the acid-washed glass vials containing filters and covered with pre-combusted aluminum foil. The vials were placed in an incubator at 90°C for 24 h and then combusted (500°C, 2 h). Once cooled, 5 mL 0.2 M HCl was added and incubated at 90°C for at least 30 min. Next, the supernatant plus 5 mL milli-Q water was mixed with 2:5:1:2 parts ammonium molybdate tetrahydrate, 5N sulfuric acid, potassium antimonyl tartrate, and ascorbic acid for 30 min. Finally the standards and samples were analyzed on a spectrophotometer (Genesys 10vis, Thermo Scientific, Waltham, Massachusetts) at a wavelength of 885 nm to determine POP concentration with an assay detection limit ~0.1 nmol l -1 . |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
Use Limitations |
|
Dataset Citation |
|
Cited Authors | |
Principal Investigators | |
Contributors | |
Resource Providers | |
Points of Contact | |
Publishers | |
Acknowledgments |
Theme keywords |
NODC DATA TYPES THESAURUS
NODC OBSERVATION TYPES THESAURUS
WMO_CategoryCode
|
Data Center keywords | NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords |
Platform keywords | NODC PLATFORM NAMES THESAURUS BCO-DMO Platform Names Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes |
Instrument keywords | NODC INSTRUMENT TYPES THESAURUS BCO-DMO Standard Instruments Global Change Master Directory (GCMD) Instrument Keywords Originator Instrument Names |
Place keywords | NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Place Names |
Project keywords | BCO-DMO Standard Projects Provider Cruise IDs Provider Funding Award Information |
Keywords | NCEI ACCESSION NUMBER |
Use Constraints |
|
Data License | |
Access Constraints |
|
Fees |
|
Lineage information for: dataset | |
---|---|
Processing Steps |
|
Output Datasets |
|
Acquisition Information (collection) | |
---|---|
Instrument |
|
Platform |
|
Last Modified: 2024-05-31T18:50:46Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov