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U.S. Commission on Ocean Policy - Joint Ocean Commission Initiative

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Table 26.1 Proposed Core Variables for the IOOSParticipants at an <strong>Ocean</strong>.US workshop recognized the following variables as important measurements to be made by the nati<strong>on</strong>alIntegrated <strong>Ocean</strong> Observing System.Physical Chemical BiologicalSalinityC<strong>on</strong>taminants: waterFish speciesWater temperatureDissolved nutrientsFish abundance/biomassBathymetryDissolved oxygenZooplankt<strong>on</strong> speciesSea levelCarb<strong>on</strong>: total organicOptical propertiesDirecti<strong>on</strong>al wave spectraC<strong>on</strong>taminants: sediments<strong>Ocean</strong> colorVector currentsSuspended sedimentsPathogens: waterIce c<strong>on</strong>centrati<strong>on</strong>pCO 2Phytoplankt<strong>on</strong> speciesSurface heat fluxCarb<strong>on</strong>: total inorganicZooplankt<strong>on</strong> abundanceBottom characteristicsTotal nitrogen: waterBenthic abundanceSeafloor seismicityBenthic speciesIce thicknessMammals: abundanceSea-surface heightMammals: mortality eventsBacterial biomassChlorophyll-aN<strong>on</strong>-native speciesPhytoplankt<strong>on</strong> abundancePhytoplankt<strong>on</strong> productivityWetlands: spatial extentBioacousticsSource: Nati<strong>on</strong>al <strong>Ocean</strong> Research Leadership Council. Building C<strong>on</strong>sensus: Toward an Integrated and Sustained <strong>Ocean</strong> Observing System.Proceedings of an <strong>Ocean</strong>.US workshop. Arlingt<strong>on</strong>, VA, March 2002.Table 26.2 Proposed Supplemental IOOS VariablesIn additi<strong>on</strong> to the ocean-specific variables listed in Table 26.1, the participants at the <strong>Ocean</strong>.US workshop highlighted a number ofother variables that affect ocean and coastal envir<strong>on</strong>ments.Meteorological Terrestrial Human Health & UseWind vectorAir temperatureAtmospheric pressurePrecipitati<strong>on</strong> (dry and wet)HumidityAerosol typeAmbient noiseAtmospheric visibilityCloud coverRiver dischargeGroundwater dischargeSeafood c<strong>on</strong>taminantsPathogens: seafoodFish catch and effortSeafood c<strong>on</strong>sumpti<strong>on</strong>Beach usageSource: Nati<strong>on</strong>al <strong>Ocean</strong> Research Leadership Council. Building C<strong>on</strong>sensus: Toward an Integrated and Sustained <strong>Ocean</strong> Observing System.Proceedings of an <strong>Ocean</strong>.US workshop. Arlingt<strong>on</strong>, VA, March 2002.Variables should be prioritized based <strong>on</strong> their value in resolving specific issues orquesti<strong>on</strong>s, their applicati<strong>on</strong> across issues, and the cost of measuring them. An additi<strong>on</strong>alfactor to c<strong>on</strong>sider is the variable’s importance for global, nati<strong>on</strong>al, regi<strong>on</strong>al, state, and localinformati<strong>on</strong> purposes. Future deliberati<strong>on</strong>s will need to identify those variables which canbe measured using current capabilities and those that will require new technologies.CHAPTER 26: ACHIEVING A SUSTAINED, INTEGRATED OCEAN OBSERVING SYSTEM 401

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