making sense of environmental data
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Making Sense of Environmental Data. NARA Preservation Conference 2006 James M. Reilly Image Permanence Institute Rochester Institute of Technology. Why Environmental Data? . Environment is best way to achieve and demonstrate stewardship of collections. Why Environmental Data? . - PowerPoint PPT PresentationTRANSCRIPT
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Making Sense of Making Sense of Environmental DataEnvironmental Data
NARA Preservation Conference 2006NARA Preservation Conference 2006
James M. ReillyJames M. ReillyImage Permanence InstituteImage Permanence Institute
Rochester Institute of TechnologyRochester Institute of Technology
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Why Environmental Why Environmental Data? Data? Environment is Environment is
best way to best way to achieve and achieve and demonstrate demonstrate stewardship of stewardship of collectionscollections
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Why Environmental Why Environmental Data? Data? To inform key institutional To inform key institutional
functionsfunctions Facilities managementFacilities management Fiscal managementFiscal management Archival / curatorialArchival / curatorial
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Environment-Driven Environment-Driven Collection Decay Collection Decay Mechanisms Mechanisms
Chemical changeChemical change Biological attackBiological attack Mechanical damageMechanical damage
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Deriving Meaning from Deriving Meaning from T & RH DataT & RH Data
Algorithms to estimate Algorithms to estimate specific decay risksspecific decay risks
Integrations over timeIntegrations over time
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Chemical Decay (Natural Chemical Decay (Natural Aging) MetricAging) Metric
TWPITWPI
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TWPI (Time-Weighted TWPI (Time-Weighted Preservation Index) Preservation Index) Measure of chemical change Measure of chemical change
induced by heat and moistureinduced by heat and moisture Typical cause of poor Typical cause of poor
performance: High summertime performance: High summertime dew pointdew point
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TWPI ScaleTWPI Scale
Poor: 1 – 45Poor: 1 – 45 OK: 45 – 75OK: 45 – 75 Good: 75 - 100Good: 75 - 100 Great: > 100Great: > 100
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Biological Decay Biological Decay MetricMetric
Mold Risk Factor Mold Risk Factor (MRF)(MRF)
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Mechanical Decay Mechanical Decay MetricsMetrics
Measures risk due to: Measures risk due to: Moisture content of Moisture content of
collectionscollections Too highToo high Too lowToo low
Dimensional changes as Dimensional changes as moisture content varies moisture content varies over timeover time
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Mechanical Decay Risk Mechanical Decay Risk MetricsMetrics
Too dry – Min EMCToo dry – Min EMC Too damp – Max EMCToo damp – Max EMC Too much expansion and contraction – % Too much expansion and contraction – %
DC MaxDC Max Typical cause of poor performance:Typical cause of poor performance:
Winter drynessWinter dryness
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Interpreting Data: Weigh Interpreting Data: Weigh the Risks According to the the Risks According to the Nature and Importance of Nature and Importance of CollectionsCollections
Archival & library materials:Archival & library materials: Chemical, biologicalChemical, biological
Fine arts & rare books:Fine arts & rare books: Mechanical, chemical, biologicalMechanical, chemical, biological
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Metrics in PracticeMetrics in Practice At LoCAt LoC
Identified underperforming spacesIdentified underperforming spaces Achieved operating improvementsAchieved operating improvements
At NYPLAt NYPL Helped redirect capital plan for global improvementsHelped redirect capital plan for global improvements
At NARAAt NARA Used in DC, RegionsUsed in DC, Regions
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Fundamentals of Fundamentals of Preventive ConservationPreventive Conservation
Gather and organize informationGather and organize information Materials and modes of decayMaterials and modes of decay Storage circumstancesStorage circumstances Present conditionPresent condition
Analyze risksAnalyze risks Take actions to minimize decayTake actions to minimize decay
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Prototype of Collection Prototype of Collection Storage Information Storage Information SystemSystem Built for National Museum of Built for National Museum of
Denmark Denmark Shown with permissionShown with permission Linked InformationLinked Information
ClimateClimate CollectionsCollections Mechanical systemsMechanical systems
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The Image The Image Permanence InstitutePermanence Institute
Rochester Institute of Rochester Institute of TechnologyTechnology
www.imagepermanenceinstitwww.imagepermanenceinstitute.orgute.org
www.climatenotebook.orgwww.climatenotebook.org
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AcknowledgementsAcknowledgements Andrew W. Mellon FoundationAndrew W. Mellon Foundation NEH Division of Preservation NEH Division of Preservation
and Access and Access IMLSIMLS NARANARA National Museum of DenmarkNational Museum of Denmark