{ "currentVersion": 10.91, "id": 2, "name": "Chlorophyll_a_b_c_Phaeophytin_a", "type": "Feature Layer", "description": "This data layer comprises chlorophyll a, b and c and phaeophytin a concentrations from the upper 2 cm of seabed sediments.\nBottom sediments were collected using either a Smith McIntyre grab or a Box Core. 0.4 ml samples of surface sediment (0-0.5 cm) were syringed into plastic bags. The samples were wrapped in Al foil and frozen. Chlorophyll concentrations were calculated on sediment extracts (90% acetone + 0.1% MgCO3) at spectrophometric readings at wavelengths of 647, 630, 750 and 664 nm. For chlorophyll-a (Chl-a) and phaeophytin-a, wavelengths of 664 nm and 750 nm (before and after the addition of 200 -L-1 0.1 mol L-1 HCl per 2 mL extractant) and the equation derived by Lorenzen (1967) were used. Chlorophyll b and c concentrations were calculated according to equations provided by Jeffrey and Welschmeyer (2003). The reproducibility of the measurements was +/-10%.\nLorenzen, C. J. (1967). Determination of chlorophyll and pheopigments: Spectrophotometric equations. Limnology and Oceanography 12, 343-346.\nJeffrey, S.W., and Welschmeyer, N.A. (2003). Spectrophotometric and fluorometric equations in common use in oceanography. In 'Phytoplankton pigments in oceanography: guidelines to modern methods' (Eds. S.W. Jeffrey and R.F.C. Mantoura, and S.W. Wright.) pp. 597-615. (UNESCO Paris.)", "geometryType": "esriGeometryPoint", "sourceSpatialReference": { "wkid": 4326, "latestWkid": 4326 }, "copyrightText": "© 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", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriPMS", "url": "a41c64cfc541b9926f49e6a0fc25247c", "imageData": "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", "contentType": "image/png", "width": 15, "height": 14, "angle": 0, "xoffset": 0, "yoffset": 0 }, "label": "Chlorophyll a, b and c and Phaeophytin a", "description": "" }, "transparency": 0, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": 126.91223300000001, "ymin": -12.209479999999928, "xmax": 127.45321700000011, "ymax": -11.39911666699993, "spatialReference": { "wkid": 4326, "latestWkid": 4326 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "GA_Sample_ID", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "objectid", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "ga_sample_number", "type": "esriFieldTypeDouble", "alias": "GA_Sample_number", "domain": null }, { "name": "ga_sample_id", "type": "esriFieldTypeString", "alias": "GA_Sample_ID", "length": 255, "domain": null }, { "name": "sample_type", "type": "esriFieldTypeString", "alias": "Sample_type", "length": 255, "domain": null }, { "name": "longitude", "type": "esriFieldTypeDouble", "alias": "Longitude", "domain": null }, { "name": "latitude", "type": "esriFieldTypeDouble", "alias": "Latitude", "domain": null }, { "name": "water_depth__m_", "type": "esriFieldTypeDouble", "alias": "Water_depth__m_", "domain": null }, { "name": "acquire_date", "type": "esriFieldTypeString", "alias": "Acquire_date", "length": 255, "domain": null }, { "name": "sediment_depth__cm_", "type": "esriFieldTypeString", "alias": "Sediment_depth__cm_", "length": 255, "domain": null }, { "name": "chlor_a__ug_g___dwt___lorenzen_", "type": "esriFieldTypeString", "alias": "Chlor_a__ug_g___dwt___Lorenzen_", "length": 255, "domain": null }, { "name": "chlor_b__ug_g_dry_wt_", "type": "esriFieldTypeDouble", "alias": "Chlor_b__ug_g_dry_wt_", "domain": null }, { "name": "chlor_c__ug_g_dry_wt_", "type": "esriFieldTypeDouble", "alias": "Chlor_c__ug_g_dry_wt_", "domain": null }, { "name": "pheophytin__ug_g_dwt___lorenzen", "type": "esriFieldTypeDouble", "alias": "Pheophytin__ug_g_dwt___Lorenzen_", "domain": null }, { "name": "shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null } ], "geometryField": { "name": "shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "r1708_sde_rowid_uk", "fields": "objectid", "isAscending": true, "isUnique": true, "description": "" }, { "name": "a1514_ix1", "fields": "shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }