Chlorophyll

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Napp, Jeffrey
Publication_Date: Unpublished material
Title: Chlorophyll
Geospatial_Data_Presentation_Form: Microsoft Excel 2003 Spreadsheet
Description:
Abstract:
These data were collected under NSF Grant # ARC-0722448 ("BEST: Impacts of Sea-ice on the Hydrographic Structure, Nutrients, and Mesozooplankton over the Eastern Bering Sea Shelf") to Dr. G.L. Hunt, Jr., University of Washington. The eastern Bering Sea shelf supports productive marine ecosystems with extraordinarily valuable fisheries and subsistence resources, but sub-arctic seas are predicted to be one of the regions most sensitive to future warming of the world’s oceans. Some of the most direct effects of changing climate will be on the extent, duration and timing of sea-ice over the Bering Sea shelf. Sea-ice controls the timing of the spring phytoplankton bloom, the fate of primary production, water column temperature and salinity, and provides a haul out and molting platform for marine mammals. Thus, the most urgent priority of the Bering Sea Ecosystem Study (BEST) is to examine the role of changing sea-ice conditions on the chemical, physical, and biological characteristics of the ecosystem. The first BEST cruise was scheduled on the USCG Healy in April-May 2007, however, physical observations, water column nutrient chemistry, and zooplankton distribution / abundance were not among the ecosystem components funded in the first call for proposals. Project ARC-0722448 funded by NSF after the first call for BEST proposals filled this gap in chlorophyll collections until the remainder of BEST projects could be assembled in 2008.
Purpose:
To document the along- and cross-shelf variability in spring chlorophyll concentrations on the eastern Bering Sea shelf
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20070410
Ending_Date: 20070512
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: -160.0
North_Bounding_Coordinate: 65.0000
South_Bounding_Coordinate: 54.0000
Keywords:
Theme:
Theme_Keyword_Thesaurus: biota
Theme_Keyword: phytoplankton
Theme_Keyword: chlorophyll
Theme_Keyword: phaeopigments
Theme:
Theme_Keyword_Thesaurus: oceans
Theme_Keyword: phytoplankton
Theme_Keyword: chlorophyll
Theme_Keyword: phaeopigments
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Alaska
Place_Keyword: arctic
Place_Keyword: eastern Bering Sea shelf
Place_Keyword: Bristol Bay
Place_Keyword: St. Lawrence Island
Stratum:
Stratum_Keyword_Thesaurus: Depths
Stratum_Keyword: upper water column
Temporal:
Temporal_Keyword_Thesaurus: Seasons
Temporal_Keyword: Spring
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Napp, Jeffrey
Contact_Organization: National Oceanic and Atmospheric Administration
Contact_Address:
Address_Type: mailing and physical
Address: 7600 Sand Point Way NE, Bldg. 4
City: Seattle
State_or_Province: WA
Postal_Code: 98115
Country: USA
Contact_Voice_Telephone: (206) 526-4148
Contact_Facsimile_Telephone: (206) 526-6723
Contact_Electronic_Mail_Address: jeff.napp@noaa.gov
Data_Quality_Information:
Logical_Consistency_Report: not applicable
Completeness_Report: Data are processed using Seabird...
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
Samples are from assorted size and types of PVC water bottles on a CTD rosette or carrousel and closed at a known depth. Water is drained from the bottles through a silicon tube into a calibrated PE or PP sample bottle. The bottom is rinsed three times and then filled to the top. After all sample bottles are filled, they are taken to the ship's laboratory where the contents are filtered through a glass fiber filter (nominal pore size 0.7 micron) over low vacuum (<= 7 psi). The filter is folded twice and placed in a 2 ml microcentrifuge tube. The tubes are store in the dark at - 80 deg. C until sample analysis.
Methodology:
Methodology_Type: Lab
Methodology_Description:
Pigments are extracted in the dark at - 80 deg C in 6 ml of 90% acetone for 24 hours. They are then removed from the freezer, vortexed, and centrifuged for 5 minutes at 2,000 rpm. The samples are allowed to come to room temperature before measuring their fluorescence before and after the addition of HCl using a calibrated TD-700 fluorometer. Chlorophyll a and phaeopigments are calculated using standard equations.
Process_Step:
Process_Description: No process steps have been described for this data set
Process_Date: Unknown
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
Spatial_Reference_Information:
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: Local surface
Depth_Resolution: 1.00
Depth_Distance_Units: meters
Depth_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: HLY0701_Chlorophyl_final
Entity_Type_Definition:
Phytoplankton pigments (chlorophyll and phaeopigment) from water bottle samples
Entity_Type_Definition_Source: Napp, Jeffrey
Attribute:
Attribute_Label: FOCICruise
Attribute_Definition:
FOCI Program Cruise Number XYYZZ(X=sequential cruise number; YY= ship designation; ZZ= year)
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Text
Attribute:
Attribute_Label: Station
Attribute_Definition: Sequential Station Number
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Integer
Attribute:
Attribute_Label: Haul
Attribute_Definition:
Sequential Haul Number (N.B. Increment haul number if the operation is performed within 0.5 nm of original station position)
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Integer
Attribute:
Attribute_Label: GearAbrv
Attribute_Definition: Gear Abbreviation
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CTDB
Enumerated_Domain_Value_Definition: Conductivity, Temperature, Depth Instrument with Water Bottles
Enumerated_Domain_Value_Definition_Source: See entity type definition source
Attribute:
Attribute_Label: ShipCruise
Attribute_Definition: Ship's Convention for Cruise Name
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Text
Attribute:
Attribute_Label: CTDID
Attribute_Definition:
CTD cast # from which chlorophyll samples were obtained. Concatenated variable: FOCI Cruise + Sequential Station Number + "CTD" + Sequential CTD #
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Text
Attribute:
Attribute_Label: GMTTime
Attribute_Definition: Greenwich Mean Time
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1899-12-30 00-13-00
Range_Domain_Maximum: 1899-12-30 23-26-00
Attribute_Units_of_Measure: Time
Attribute_Domain_Values:
Unrepresentable_Domain: Date/Time
Attribute:
Attribute_Label: BottomDepth
Attribute_Definition: Depth of Water Column (acoustically determined)
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Integer
Attribute:
Attribute_Label: Latitude
Attribute_Definition: Latitude (Decimal Degrees)
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 54.2438
Range_Domain_Maximum: 62.8528
Attribute_Units_of_Measure: 0.0001
Attribute_Domain_Values:
Unrepresentable_Domain: Real
Attribute:
Attribute_Label: Longitude
Attribute_Definition: Longitude (Decimal Degrees)
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -179.4392
Range_Domain_Maximum: -163.9237
Attribute_Units_of_Measure: 0.0001
Attribute_Domain_Values:
Unrepresentable_Domain: Real
Attribute:
Attribute_Label: HaulComments
Attribute_Definition: Comments Entered By Scientist
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Text
Attribute:
Attribute_Label: Performance
Attribute_Definition: Scientists Assessment of Sample Quality
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: good
Enumerated_Domain_Value_Definition: no reservations about quality of sample
Enumerated_Domain_Value_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: quest
Enumerated_Domain_Value_Definition:
questionable - some reservations about quality of sample; read Haul Comments to learn why
Enumerated_Domain_Value_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: fail
Enumerated_Domain_Value_Definition:
failure during sample collection or processing - do not use these data
Enumerated_Domain_Value_Definition_Source: See entity type definition source
Attribute:
Attribute_Label: GMTDate
Attribute_Definition: Greenwich Mean Time Date at Time of Sample Collection
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2007-04-10 00-00-00
Range_Domain_Maximum: 2007-05-12 00-00-00
Attribute_Units_of_Measure: Time
Attribute_Domain_Values:
Unrepresentable_Domain: Date/Time
Attribute:
Attribute_Label: SampleDepth
Attribute_Definition: Depth of Sample Collection
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Unrepresentable_Domain: Integer
Attribute:
Attribute_Label: ChloroPerM^3
Attribute_Definition: Chlorophyll a Concentration
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 35.4606
Attribute_Units_of_Measure: Micrograms per Cubic Meter
Attribute_Domain_Values:
Unrepresentable_Domain: Real
Attribute:
Attribute_Label: PhaeoPigPerM^3
Attribute_Definition: Phaeophorbide + Phaephytin Concentration
Attribute_Definition_Source: See entity type definition source
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 11.8799
Attribute_Units_of_Measure: Micrograms per Cubic Meter
Attribute_Domain_Values:
Unrepresentable_Domain: Real
Metadata_Reference_Information:
Metadata_Date: 20081212
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Napp, Jeffrey
Contact_Organization: National Oceanic and Atmospheric Administration
Contact_Address:
Address_Type: mailing and physical
Address: 7600 Sand Point Way NE
City: Seattle
State_or_Province: WA
Postal_Code: 98115
Country: USA
Contact_Voice_Telephone: 206-526-4148
Metadata_Standard_Name:
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: National Center for Atmospheric Research
Contact_Person: Earth Observing Laboratory
Contact_Address:
Address_Type: mailing and physical
Address: 3450 Mitchell Lane
City: Boulder
State_or_Province: CO
Postal_Code: 80301
Country: USA
Contact_Voice_Telephone: 303-497-8692
Contact_Electronic_Mail_Address: codiac@ucar.edu
Contact_Electronic_Mail_Address: gstoss@ucar.edu
Generated by mp version 2.9.23 on Wed Mar 19 13:48:13 2014