Action: Archive Tier Action: Archive Tier SubgroupSubgroup

““Proposal is that the task team look Proposal is that the task team look at possible ways of accessing the right at possible ways of accessing the right data to make a determination on the data to make a determination on the level it should be in the Archive.”level it should be in the Archive.”

D. Brown, A. Budge, K. Davidson, J. D. Brown, A. Budge, K. Davidson, J. Faundeen, S. Goward, and H. Faundeen, S. Goward, and H. SatterleeSatterlee

BackgroundBackground

Stems from work begun by Stems from work begun by Faundeen 2-3 years ago to address Faundeen 2-3 years ago to address Levels of Service concept for EDC Levels of Service concept for EDC (archive?)(archive?)

Relates to the Data Sieve Relates to the Data Sieve recommendation from AAC IIrecommendation from AAC II

Recognition that volumes of data Recognition that volumes of data will outweigh storage capacitywill outweigh storage capacity

BackgroundBackground

Realization that costs for making Realization that costs for making these data available exceed these data available exceed appropriationsappropriations

Driven by need to optimize Driven by need to optimize quality of service to users in a quality of service to users in a cost-effective mannercost-effective manner

ConceptConcept

Develop / identify levels of service Develop / identify levels of service for the Archive based upon quality for the Archive based upon quality of dataof data““Best of the Best” – the clearest Best of the Best” – the clearest

observations available for a time observations available for a time period (monthly, quarterly, seasonally)period (monthly, quarterly, seasonally)

““Back-up Images” – any image with Back-up Images” – any image with less than x% cloud cover acquired for less than x% cloud cover acquired for any time periodany time period

““Cold Storage” – acquisitions which do Cold Storage” – acquisitions which do not meet criteria for levels one or twonot meet criteria for levels one or two

Efforts to dateEfforts to date

Assembled draft of definitions and Assembled draft of definitions and terms that might be used to terms that might be used to describe levels of service for the describe levels of service for the ArchiveArchive

Began draft document addressing Began draft document addressing levels of service for the Archivelevels of service for the Archive

A sneak previewA sneak preview

LevelLevel Annual Annual CoveragCoverag

ee

Data Data Charac.Charac.

Data Data AccessAccess

Archive Archive SupportSupport

Best of Best of the Bestthe Best

1 clear 1 clear view view seasonallyseasonally

Lowest ccLowest cc

Least hazeLeast haze

High High technical technical qualityquality

On web On web or 24 or 24 hour hour turnarounturnaroundd

~20% of ~20% of ArchiveArchive

75% of 75% of budgetbudget

Best of Best of the Restthe Rest

All All meeting meeting criteriacriteria

All scenes All scenes w/< 30% ccw/< 30% cc

High High technical technical qualityquality

3-5 day 3-5 day turnarounturnaroundd

~ 30% of ~ 30% of ArchiveArchive

20% of 20% of budgetbudget

UncertaiUncertain Valuen Value

> 30% cc> 30% cc

Poor Poor technical technical qualityquality

Within 30 Within 30 days?days?

50% of 50% of ArchiveArchive

5% of 5% of budgetbudget

Next stepsNext steps

With the blessing of the entire With the blessing of the entire AAC….AAC….

Continue to develop the conceptContinue to develop the concept Draft a document to be presented Draft a document to be presented

at AAC meeting in spring 2006at AAC meeting in spring 2006 Form a recommendation based Form a recommendation based

on the approved documenton the approved document