AFSC/ABL: Ocean Acidification in Southeast Alaska
Alaska Fisheries Science Center
Data Set
(DS)
| ID: 26972
| Published / External
Created: 2015-09-14
|
Last Modified: 2023-05-30
Project (PRJ) | ID: 12324
ID: 26972
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AFSC/ABL: Ocean Acidification in Southeast Alaska |
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Short Name | AFSC/ABL: Ocean Acidification in Southeast Alaska |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | Unknown |
* » Abstract |
This database contains information from one primary project a Southeast Alaska (SEAK) environmental monitoring study. It also includes support analyses for Kodiak crab studies (larvae, seawater), and miscellaneous ancillary studies: 1) a bottle storage experiment, 2) a diurnal carbon study, 3) and a euphausiid (krill) study. |
* Purpose |
This dataset contains the data from the ocean acidification project from 2007 to 2013. |
Notes |
Loaded by FGDC Metadata Uploader, batch 7074, 09-14-2015 16:17 |
Other Citation Details | |
• Supplemental Information | |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category | environment |
ITIS | decapod larvae |
None | carapase mineral content |
None | chlorophyll |
None | environmental monitoring |
None | pH |
None | total alkalinity |
None | total dissolved inorganic carbon |
Temporal Keywords
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* Spatial Keywords
Thesaurus | Keyword |
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Geographic Names Information System | Alaska |
Geographic Names Information System | Bering Sea |
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Physical Location
• » Organization | Auke Bay Laboratories |
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• » City | Juneau |
• » State/Province | AK |
• Country | US |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | None Planned |
Maintenance Note | |
» Data Presentation Form | maps and data |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
Distribution Liability |
The user is responsible for the results of any application of this data for other than its intended purpose. |
Data Set Credit | NOAA Ocean Acidification Program |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2015-09-01 |
Date Effective To | |
Person | Carls, Mark |
Email Address | mark.carls@noaa.gov |
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* » Support Role | Distributor |
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* » Date Effective From | 2015-09-14 |
Date Effective To | |
Person | Carls, Mark |
Email Address | mark.carls@noaa.gov |
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* » Support Role | Metadata Contact |
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* » Date Effective From | 2015-09-14 |
Date Effective To | |
Person | MC, Metadata Coordinators |
Email Address | AFSC.metadata@noaa.gov |
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Contact Instructions |
* » Support Role | Originator |
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* » Date Effective From | 2015-09-14 |
Date Effective To | |
Person | Carls, Mark |
Email Address | mark.carls@noaa.gov |
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* » Support Role | Point of Contact |
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* » Date Effective From | 2015-09-14 |
Date Effective To | |
Person | Carls, Mark |
Email Address | mark.carls@noaa.gov |
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Extents
Currentness Reference | Ground Condition |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -146.8 |
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* » E° Bound | -134.57 |
* » N° Bound | 60.72 |
* » S° Bound | 57.04 |
* » Description |
Alaska, Gulf of Alaska, Southeast Alaska, Prince William Sound, Kodiak |
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2007-05 |
End | 2013-07 |
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Access Information
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Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure |
Contact Distributor for data access procedures. |
• » Data Access Constraints |
There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. |
• Data Use Constraints |
User must read and fully comprehend the metadata prior to use. Data should not be used beyond the limits of the source scale. Acknowledgement of NOAA, as the source from which these data were obtained, in any publications and/or other representations of these data is suggested. |
Metadata Access Constraints | |
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Distribution Information
Start Date | |
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» Download URL | https://console.cloud.google.com/storage/browser/_details/nmfs_odp_afsc/ABL/Ocean%20Acidification%20in%20Southeast%20Alaska_ID_26972.csv |
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Description |
Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/15/2021. Contact: Daniel.woodrich@noaa.gov |
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Technical Environment
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Microsoft Excel Spreadsheet |
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Conceptual Consistency |
See lineage for process steps |
» Quality Control Procedures Employed |
N/A |
Data Management
» Have Resources for Management of these Data Been Identified? | Yes |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | Unknown |
» Do these Data Comply with the Data Access Directive? | Yes |
» Is Access to the Data Limited Based on an Approved Waiver? | No |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | yes |
» Approximate Delay Between Data Collection and Dissemination | unknown |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
no delay |
» Actual or Planned Long-Term Data Archive Location | To Be Determined |
» If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
NCEI site yet to be determined |
» Approximate Delay Between Data Collection and Archiving | unknown |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption. |
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Process Steps
Process Step Number | 1 |
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» Description |
Water samples were collected at each location and depth with Niskin bottles and stored as described by Dickson et al. (2009) except they were not poisoned with mercuric chloride. Water was filtered through 53 m nylon sleeves placed around the exit hose on the Niskin bottle as it was collected from bottom to top with 0.5 to 1 volume overflow in pre-cleaned BOD (biological oxygen demand) bottles (after rinsing). The glass-stoppered BOD bottles were sealed with Apiezon L grease, refrigerated, and analyzed within 2 w of collection. Observation parameters did not change measurably within the 2 week measurement period. Additional water was collected unfiltered for chlorophyll measurement in brown Nalgene bottles (250 ml). Chlorophyll samples were refrigerated, filtered within 24 h of collection (0.7 m glass microfiber Whatman GF/F), placed in cryovials and stored at -80C pending analysis. |
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Process Step Number | 2 |
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» Description |
Water samples were analyzed for pH, total alkalinity (TA), total dissolved inorganic carbon (TC) and salinity with the methods of Dickson et al. (2009). Quality assurance measures were included daily with every group of samples. These measures included sample replicates for precision and for accuracy, certified reference material (CRM) for TA, TC, and salinity (Oceanic CO2 Quality Control - Marine Physical Laboratory, Scripps Institution of Oceanography, CA). |
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Process Step Number | 3 |
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» Description |
pH was measured in 10 cm cells with the indicator dye m-cresol purple in a UV/visible spectrophotometer (Model 8453, Agilent Technologies). A tris buffer solution in synthetic seawater served as the CRM (Oceanic CO2 Quality Control - Marine Physical Laboratory, Scripps Institution of Oceanography, CA). Typical precision, measured as the coefficient of variation, was 0.08%. Typical accuracy was 0.06%. |
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Process Step Number | 4 |
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» Description |
Total alkalinity was initially measured by the open cell titration method with a Dosimat autopipette (Metrohm) through August 2011 and thereafter with a QC Titration Module a TitraSip System (Mantech Associates Inc.). A series of pH buffer solutions was used to calibrate the Ross pH probe (Thermo Scientific) and the probe was subsequently soaked in filtered seawater for 1 h before sample measurement. A 0.7 M NaCl solution was used as a rinse between seawater sample measurements. Conditioning soaks were not used with the manual TA analysis approach. Typical precision was 3.6% with the Dosimat and 0.5% with the Mantech. Typical accuracy was 1.3% with the Dosimat and 0.7% with the Mantech. |
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Process Step Number | 5 |
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» Description |
Total dissolved inorganic carbon was measured with a CO2 Coulometer (CM5014, UIC Inc.) and Acidification Module (CM5130, UIC Inc.; Dickson et al. 2009). Each 20 g water sample was acidified with 6 ml of 1.5 M phosphoric acid to release the inorganic carbon as CO2 gas. An electrochemical cell with cathode/anode solutions and potassium iodide salt was used to measure the amount of CO2 (g C). Potassium hydroxide (45%) was used as a pre-scrubber and acidified potassium iodide (50% to pH 3) as a post-scrubber on the acidification module. High and low concentrations of sodium carbonate were used to calibrate the Coulometer, and a slope calibration factor was applied to each inorganic carbon value (Goyet and Hacker 1992). Typical precision and accuracy were 0.9 and 0.5%, respectively. |
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Process Step Number | 6 |
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» Description |
Chlorophyll a was measured as described by (Parsons, Maita et al. 1984) in a fluorometer (TD 700, Turner Designs). Each sample was measured twice and results averaged. Salinity was measured with an AutoSal (Model 8400B, Guildline Instruments Limited). Each sample was measured in triplicate and results averaged. Typical precision and accuracy were 0.7 and 7%, respectively. |
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Process Step Number | 7 |
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» Description |
Calcite and aragonite saturation levels were calculated from pH and TC measurements with the CO2sys (Lewis and Wallace). Alternative calculations as a function of TA and TC were also completed. |
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Acquisition Information
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Child Items
Rubric scores updated every 15m
Score | Type | Title |
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Entity (ENT) | 1972to2008Data | |
Entity (ENT) | 2012Data | |
Entity (ENT) | 2013Data | |
Related Items
Item Type | Relationship Type | Title |
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Catalog Details
Catalog Item ID | 26972 |
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Metadata Record Created By | Emily A Fergusson |
Metadata Record Created | 2015-09-14 16:17+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-05-30 18:10+0000 |
Metadata Record Published | 2016-05-18 |
Owner Org | AFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2016-05-18 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2017-05-18 |
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