NIPR DATA BASE - Data of primary nitrite maximum during the cruise of TR/V Umitaka-Maru, UM0809 (UM0809)

Sience Field

Bioscience => Ocean Production Process

Umitakamaru => Bioscience

Overview
Title	Data of primary nitrite maximum during the cruise of TR/V Umitaka-Maru, UM0809 (UM0809)
Sub-Title
Data Summary	The vertical distribution of nitrite concentration and the result of 15N incubation experiment in the Southern Ocean. The data were obtained at sampling stations L1, L9, III-5 during the cruise of TR/V Umitaka-Maru in austral summer of 2008/2009. The seawater samples for nitrite were collected at 5-10 m depth intervals in the upper 350 m of the water column, and analyzed with an autoanalyzer. As for the 15N incubation experiment, seawater samples were collected at three depths around temperature minimum layer, where nitrite maximum appeared. The samples were enriched with 15N-NO3-, 15N-NH4+, 15N-NO2-, and incubated on board during 24 hours. After the incubation, the samples were filtered immediately. The total nitrogen and 15N content of filters and filtrates were analyzed by a mass spectrometer.
About Observation
Spatial Coverage
Data Location	Southern Ocean
Observaion Period / Temporal Coverage	2009-01-13 - 2009-01-27
Data Period	2009-01-13 - 2009-01-27
Observation Photo
Data Details
Data Name	Data of primary nitrite maximum during the cruise of TR/V Umitaka-Maru, UM0809
Data Format	Digital
Data Recording / Acquisition Sampling	Sampling stations L1, L9, III-5
Observation Instruments	Autoanalyzer, mass spectrometer
Sample Data
Publication
Publication method	http://biows.nipr.ac.jp/JARE/ Metadata/AMD : Southern Ocean vertical distribution of nitrite concentration data during the cruise of TR/V Umitaka-Maru, UM0809
Data Policy
Data Center (Contact Person)	Tokyo University of Marine Science and Technology (Kouta Ayukawa)
E-mail	d082002 (at) kaiyodai.ac.jp
Related Organization
Scientific Results / Publication
Digital Object Identifier(DOI)
Creator	Kouta Ayukawa
Publisher	National Institute of Polar Research