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Environmental conditions and C and N uptakes of phytoplankton in the Bering and Chukchi seas, 2008

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Environmental conditions and C and N uptakes of phytoplankton in the Bering and Chukchi seas, 2008
Description:
Abstract:
As a Chinese IPY event, the 3rd Chinese National Arctic Research Expedition (CHINARE) was conducted from the Chukchi Sea to the central Arctic Ocean from late July to early September in 2008. During the period, the primary productivity experiments were measured at 12 stations in the Chukchi Sea and 12 stations in the central Arctic Ocean, using a 13C-15N dual isotope tracer. In addition, we measured ice algae productivities in the melting ponds from 5 different ice stations. The temperature and salinity at surface were 4-6 ℃ and 30 in the Chukchi Sea and -1-3 ℃ and 25-27 in the central Arctic Ocean. The primary productivity of phytoplankton was higher in the Chukchi Sea than in Canada Basin during the cruise period. The nitrogen up take rates in the Chukchi Sea were lower in 2008 than in 2007. Based on high f-ratios in the central Arctic sea, nitrate uptake rates compared to ammonium uptake rates were relatively higher than those from other studies. The productivity of the algae in melting ponds ranged from 0.01 to 0.34 mg C m-3 h-1(average± S.D.= 0.09±0.11 mg C m-3 h-1) which were some what higher than those of phytoplankton(average± S.D.= 0.07±0.06 mg C m-3 h-1) at surface water over 80°N in the Arctic Ocean. From the careful examination on micro algae communities within or under sea ice at the refrozen surface of the melting ponds, they are believed to an important food source for the zooplanktons such as copepods and amphipods as well as Arctic cods before along winter period. However, current and on going climate changes such as a sea ice decrease are expected to impact largely on this unique habitat in the melting ponds. 1) Primary production measurement by phytoplankton using a 13C-15N dual isotope tracer 2) Developmental stages of melting ponds and ice algal productivity
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20080719
Ending_Date: 20080905
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 173.0
East_Bounding_Coordinate: 148.0
North_Bounding_Coordinate: 85.0
South_Bounding_Coordinate: 67.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON
Theme_Keyword: EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING > MARINE OBSTRUCTIONS
Theme_Keyword: R/V XUELONG
Theme_Keyword: MASS SPECTROMETERS
Theme_Keyword: Carbon And Nitrogen Uptake
Theme_Keyword: Phytoplankton
Theme_Keyword: BIOTA
Theme_Keyword: OCEANS
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > ARCTIC
Place_Keyword: OCEAN > ARCTIC OCEAN
Place_Keyword: OCEAN > ARCTIC OCEAN > CHUKCHI SEA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Place_Keyword: OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > BERING SEA
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: HYOUNG MIN JOO
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Songdo Techno Park, 7-50, Songdo-dong, Yeonsu-gu
City: Incheon
Postal_Code: 406-840
Country: Korea
Contact_Voice_Telephone: 010-9052-7723
Contact_Electronic_Mail_Address: hmjoo77@kopri.re.kr
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: KR/KOPRI > Korea Polar Research Institute, Republic of Korea
Contact_Person: JAE LIM KIM
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Songdo Techno Park, 7-50, Songdo-dong, Yeonsu-gu
City: Incheon
Postal_Code: 406-840
Country: Korea
Contact_Voice_Telephone: +82-260-6083
Contact_Facsimile_Telephone: +82-260-6088
Contact_Electronic_Mail_Address: kabuli@kopri.re.kr
Resource_Description: KPDC_ECCNPBC_2008
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.kopri.re.kr/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20111231
Metadata_Review_Date: 20160127
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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