DMS, DMSP, DMSO measurements Minicosm Experiment, Davis 2002-03
Dimethylsulfide and its precursors and derivatives constitute a major sulfate aerosol source. This dataset incorporates the potential for increased UV radiation effects due to stratospheric ozone depletion over spring and summer in Antarctica, using large-scale incubation systems and 13-14 day incubation periods. Surface seawater (200 micron filtered) from the Davis coastal embayment was incubated during four experiments over the 2002-03 Antarctic Summer.
The data incorporates seawater measurements of DMS, DMSP and DMSO over a temporal progression during each incubation experiment. Six polyethylene tanks of varying PAR and UV irradiances were incubated. Water was collected stored and analysed by gas chromatography according to a specific sampling protocol, employed by all investigators associated with the project.
The data are organised according to analysis day, with each days calibration data displayed at the top of each sheet. The sample code is followed by GC run number and then the raw count data from the GC. This is calculated to nanomoles DMS, DMSP or DMSO.
Sample Codes: Codes for temporal data follow format X.XXXX
1st X gives experiment number, 1 to 4.
2nd X gives sampling day, 0, 0.5, 1, 2, 4, 7, 14 (will result in digit code for day no. less than 10
3rd X gives tank number relating to irradiance level(one to six)
4th and 5th X is replicate number, (01, 02, 03, DMS), (04, 05,06, DMSP total), (07, 08, 09, DMSP dissolved), (10, 11, 12, DMSO total).
The fields in this dataset are:
Sample Code
Run Number from the GC
Counts - GC generated raw data
Log Counts - logarithmic conversion of the count data
Log -c - logarithmic conversion minus the y-intercept determined by calibration of the GC.
(log -c)/m - log -c divided by m, determined by calibration of the GC.
ngS anti log - nanograms of Sulfur
NaOH - NaOH adjustment
ngS/L - adjustment per litre
nM-DMSP/L - nanoMol's DMSP per litre
nm-DMS/L - nanoMol's DMS per litre
September 2013 Update: DMSO was analysed in these experiments according to an adaptation of the sodium borohydride (NaBH4) reduction method of Andreae (1980). The method has since been superseded and the data here probably displays inaccuracies as a result of the analytical method used. This DMSO data should be treated with caution.
Simple
Identification info
- Alternate title
- DMS, DMSP, DMSO measurements Minicosm Experiment, Davis 2002-03
- Date (Publication)
- 2004-04-14
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.26179/5d671d92ae85e
Originator
Publisher
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Climatology, meteorology, atmosphere
- Oceans
Extent
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2002-11-12 2003-06-26
Extent
- Description
- Vertical Extent - Depth
Vertical element
- Minimum value
- 0
- Maximum value
- 20
- Identifier
- urn:x-ogc:def:cs:EPSG:6498
- Name
- Vertical CS. Axis: depth (D). Orientation: down. UoM: m.
- Identifier
- urn:x-ogc:def:axis:EPSG:113
- Name
- depth
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > ATMOSPHERIC OZONE
- EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > SULFUR COMPOUNDS > DIMETHYL SULFIDE
- Keywords
-
- DAVIS
- DIMETHYLSULFIDE
- DMS
- UV
- MINICOSM SYSTEM
- NASA/GCMD Earth Science Keywords
-
- GAS CHROMATOGRAPHS
- NASA/GCMD Earth Science Keywords
-
- FIELD INVESTIGATION
- NASA/GCMD Earth Science Keywords
-
- ACR > Antarctic Climate Research
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- NASA/GCMD Earth Science Keywords
-
- CONTINENT > ANTARCTICA > Davis
- GEOGRAPHIC REGION > POLAR
- VERTICAL LOCATION > SEA SURFACE
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download at the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=UV_DMS_MINICOSM when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2004-04-14T00:00:00
- Units of distribution
- kb
- Transfer size
- 350
- Distribution format
-
- excel
- OnLine resource
-
GET DATA
Download point for the data
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 2100
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- Raw data set of triplicate values only. All calibration data included. No statistical quality control included here, advice from technical contact should be sought prior to viewing or subsequent use. September 2013 Update: DMSO was analysed in these experiments according to an adaptation of the sodium borohydride (NaBH4) reduction method of Andreae (1980). The method has since been superseded and the data here probably displays inaccuracies as a result of the analytical method used. This DMSO data should be treated with caution.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2013-09-16 - record updated by Jason Anderson to include some information about data inaccuracies. 2019-08-29 - record updated by Dave Connell - basic updates.
Metadata
- Metadata identifier
- string/UV_DMS_MINICOSM
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 71fcc4a5-303c-45ff-8cf6-c82d43b855af
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2019-08-29T10:32:07
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/UV_DMS_MINICOSM
Point of truth for the metadata record
- Date info (Creation)
- 2004-04-07T00:00:00
- Date info (Last Update)
- 2019-08-29
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile