Name: Total_Sediment_Metabolism
Display Field: GA_Sample_ID
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: This data layer comprises total sediment metabolism (dissolved inorganic carbon production) measurements and DIC pools in the upper 2 cm of the seabed.
Bottom sediments were collected using either a Smith McIntyre grab or a Box Core. Surface sediment (0-2 cm) was syringed into falcon vials. Pore waters were removed within 20 minutes of collection, and salinity, temperature and pH measurements were taken. The pore waters were then filtered (0.45 µm) into 3 ml gas-tight vials (pre-charged with 0.025 HgCl2). The procedure was repeated on pore waters from a second bulk sample that was incubated for ~24 hrs at sea surface temperatures. Dissolved inorganic carbon (DIC) concentrations were determined using a DIC analyser and infrared-based CO2 detector. (Geoscience Australia). CO2 production rates were calculated by concentration differences over the incubation period, after correction for CaCO3 fluxes. The average %RSD of the precisions and accuracies of the dissolved inorganic carbon measurements were 1.1 +/-1.1%. The accuracy of the wet/dry weight used in the calculations where better than 1%.
Definition Expression: N/A
Copyright Text: © Commonwealth of Australia (Geoscience Australia) 2016. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode
Default Visibility: true
MaxRecordCount: 1000
Supported Query Formats: JSON, AMF
Min Scale: 0
Max Scale: 0
Supports Advanced Queries: true
Supports Statistics: true
Has Labels: false
Can Modify Layer: false
Can Scale Symbols: false
Use Standardized Queries: true
Extent:
XMin: 126.91223300000001
YMin: -12.209479999999928
XMax: 127.453217
YMax: -11.329049999999938
Spatial Reference:
4326
(4326)
Drawing Info:
Renderer:
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Outline:
Label: Total Sediment Metabolism
Description:
Transparency: 0
Labeling Info:
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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
-
OBJECTID
(
type: esriFieldTypeOID
,
alias: OBJECTID
)
-
GA_Sample_number
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type: esriFieldTypeDouble
,
alias: GA_Sample_number
)
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GA_Sample_ID
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type: esriFieldTypeString
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alias: GA_Sample_ID
,
length: 255
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Sample_type
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type: esriFieldTypeString
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alias: Sample_type
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length: 255
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Longitude
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type: esriFieldTypeDouble
,
alias: Longitude
)
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Latitude
(
type: esriFieldTypeDouble
,
alias: Latitude
)
-
Water_depth__m_
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type: esriFieldTypeDouble
,
alias: Water_depth__m_
)
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Acquire_date
(
type: esriFieldTypeString
,
alias: Acquire_date
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length: 255
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Sediment_depth__cm_
(
type: esriFieldTypeString
,
alias: Sediment_depth__cm_
,
length: 255
)
-
Porewater_pH
(
type: esriFieldTypeDouble
,
alias: Porewater_pH
)
-
Porewater_temperature__oC_
(
type: esriFieldTypeDouble
,
alias: Porewater_temperature__oC_
)
-
Porewater_salinty
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type: esriFieldTypeDouble
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alias: Porewater_salinty
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Total_sediment_metabolism__umol_DIC_cm3_d_
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type: esriFieldTypeDouble
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alias: Total_sediment_metabolism__umol_DIC_cm3_d_
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Total_sediment_metabolism__umol_DIC_g_d_
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type: esriFieldTypeDouble
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alias: Total_sediment_metabolism__umol_DIC_g_d_
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TCO2_pool__umol_cm3_
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type: esriFieldTypeDouble
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alias: TCO2_pool__umol_cm3_
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TCO2_pool__umol_g_
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type: esriFieldTypeDouble
,
alias: TCO2_pool__umol_g_
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