File(s) | Type | Description | Action |
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npac_discrete_nut_chl.csv (71.83 KB) | Comma Separated Values (.csv) | Primary data file for dataset ID 829141 | Add to Cart Download |
Surface nutrient and chlorophyll analyses were performed on samples collected on board commercial container ships from April 2009 through December 2012. Samples were collected from the underway seawater system during basin-wide transects of the North Pacific Ocean while traversing from Hong Kong to Long Beach, California.
Samples were collected from shipboard seawater intake (10 m depth) on basin-wide transects of the North Pacific between Hong Kong and Long Beach, California onboard the M/V OOCL Tianjin and the M/V OOCL Tokyo (each individual transect has a unique Cruise ID). Sea surface temperature and salinity at the time of sample collection were determined using a Sea-Bird Electronics SBE45 thermosalinograph installed in the ship’s seawater intake. To prevent biofouling that could cause respiration in the ship’s seawater lines [Juranek et al., 2010], intake lines between the anticorrosive sea chest and the sampling port were purged with bleach and freshwater between every cruise. Since the samples were collected underway on a vessel moving ~24 knots and samples for all parameters were collected by a single shiprider, ship transit from the time that the location coordinates were recorded to the time of actual sampling could reflect a transit distance offset from the recorded location of up to 40 kilometers.
Details of collection event issues (dataset Notes field):
Palevsky, H. I., Quay, P. (2021) Nutrient and chlorophyll analyses from surface samples collected underway on board container ships during basin-wide transects of the North Pacific Ocean from Hong Kong to Long Beach, CA from 2009-2012. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-11-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.829141.1 [access date]
Terms of Use
This dataset is licensed under Creative Commons Attribution 4.0.
If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.