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An Ocean Blueprint for the 21st Century - California Ocean ...

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Table 26.1 Proposed Core Variables <strong>for</strong> <strong>the</strong> IOOSParticipants at an <strong>Ocean</strong>.US workshop recognized <strong>the</strong> following variables as important measurements to be made by <strong>the</strong> nationalIntegrated <strong>Ocean</strong> Observing System.Physical Chemical BiologicalSalinityContaminants: waterFish speciesWater temperatureDissolved nutrientsFish abundance/biomassBathymetryDissolved oxygenZooplankton speciesSea levelCarbon: total organicOptical propertiesDirectional wave spectraContaminants: sediments<strong>Ocean</strong> colorVector currentsSuspended sedimentsPathogens: waterIce concentrationpCO 2Phytoplankton speciesSurface heat fluxCarbon: total inorganicZooplankton abundanceBottom characteristicsTotal nitrogen: waterBenthic abundanceSeafloor seismicityBenthic speciesIce thicknessMammals: abundanceSea-surface heightMammals: mortality eventsBacterial biomassChlorophyll-aNon-native speciesPhytoplankton abundancePhytoplankton productivityWetlands: spatial extentBioacousticsSource: National <strong>Ocean</strong> Research Leadership Council. Building Consensus: Toward an Integrated and Sustained <strong>Ocean</strong> Observing System.Proceedings of an <strong>Ocean</strong>.US workshop. Arlington, VA, March 2002.Table 26.2 Proposed Supplemental IOOS VariablesIn addition to <strong>the</strong> ocean-specific variables listed in Table 26.1, <strong>the</strong> participants at <strong>the</strong> <strong>Ocean</strong>.US workshop highlighted a number ofo<strong>the</strong>r variables that affect ocean and coastal environments.Meteorological Terrestrial Human Health & UseWind vectorAir temperatureAtmospheric pressurePrecipitation (dry and wet)HumidityAerosol typeAmbient noiseAtmospheric visibilityCloud coverRiver dischargeGroundwater dischargeSeafood contaminantsPathogens: seafoodFish catch and ef<strong>for</strong>tSeafood consumptionBeach usageSource: National <strong>Ocean</strong> Research Leadership Council. Building Consensus: Toward an Integrated and Sustained <strong>Ocean</strong> Observing System.Proceedings of an <strong>Ocean</strong>.US workshop. Arlington, VA, March 2002.Variables should be prioritized based on <strong>the</strong>ir value in resolving specific issues orquestions, <strong>the</strong>ir application across issues, and <strong>the</strong> cost of measuring <strong>the</strong>m. <strong>An</strong> additionalfactor to consider is <strong>the</strong> variable’s importance <strong>for</strong> global, national, regional, state, and localin<strong>for</strong>mation purposes. Future deliberations 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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