Particulate Organic Carbon and Nitrogen from RVIB Nathaniel B. Palmer cruises NBP0103, NBP0104, NBP0202, and NBP0204 in the Southern Ocean from 2001-2002 (SOGLOBEC project) (NCEI Accession 0112164)

This dataset contains chemical data collected on RVIB Nathaniel B. Palmer during cruises NBP0103, NBP0104, NBP0202, and NBP0204 in the South Atlantic Ocean, South Pacific Ocean, and Southern Ocean from 2001-01-01 to 2002-12-31. These data include depth, particulate organic Carbon (POC), and particulate organic nitrogen. The instruments used to collect these data include Niskin bottle and bucket. These data were collected by Dr Maria Vernet of University of California-San Diego as part of the "U.S. GLOBEC Southern Ocean (SOGLOBEC)" project and "U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)" program. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2023-01-23.

The following is the text of the dataset description provided by BCO-DMO:

Particulate Organic Carbon and Nitrogen

Dataset Description:
Particulate Organic Carbon and Nitrogen
from Ice and Water Samples

Data Note:
This data set consists of samples derived from a varity substrats, depths within substrats and sampling devices: ice, slush, brine, water, ice core, bottles, buckets etc. The user may want to out edit the file(s) before use.

Methods:
Weight percent carbon, hydrogen, and nitrogen were determined by combustion analysis at the UCSB Marine Science Institute Analytical Laboratory (www.msi.ucsb.edu/Analab/index.html), using automated organic elemental analyzers (CHNs) manufactured by Exeter Analytical (www.eai1.com) (formerly Control Equipment Corp.), Model 440XA. Instruments were operated following manufacturer-recommended settings and procedures, and calibrated using acetanilide, with performance being monitored to achieve an analytical precision of 0.3 wt. %. (per Wendy Kozlowski, e-mail 11/23/03)

POC and PON values have been corrected for a filtered sea water blank value of: 10.32 u g for POC and 1.59 u g for PON.

A short note on the "grid": The grid is a Cartesian plane covering the sample region in which distances are easy to calculate. The grid system used for SOGLOBEC is a universal transverse mercator (UTM) projection with a certain base point and rotation. The base point was chosen in the far south and the rotation was chosen to create one axis along the peninsula, and the other offshore. The units of UTM are meters, but the points are chosen in km rounded to the nearest km. Negative numbers mean that samples were taken southwest of the y axis or southeast of the x axis. For more details see:

Data contributed by:
Maria Vernet
Integrative Oceanographic Division
Scripps Institution of Oceanography
University of California San Diego
La Jolla, California 92093-0218

Phone: 1-858-534-5322

Last updated: December 13, 2005; gfh