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Keying Great Lakes Water Levels. Stephen D. Lyles. NATIONAL OCEAN SERVICE Center for Operational Oceanographic Products and Services (CO-OPS). Water Levels on the Great Lakes. Published Since 1860 Uses of Archived data. Great Lakes NWLON Stations. Project Goals. Digitize Archived Data

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Keying great lakes water levels l.jpg

Keying Great Lakes Water Levels

Stephen D. Lyles

NATIONAL OCEAN SERVICE

Center for Operational Oceanographic Products and Services

(CO-OPS)


Water levels on the great lakes l.jpg
Water Levels on the Great Lakes

  • Published Since 1860

  • Uses of Archived data



Project goals l.jpg
Project Goals

  • Digitize Archived Data

  • Data available on CO-OPS Web Page


Data set description l.jpg
Data Set Description

  • Quantity

    1,400 Station Years of data

    (12.9 million entries)

  • Media

    Water Level Books

    Tabular Pages


Required rescue activity l.jpg
Required Rescue Activity

  • Key Data

  • Quality Control Check

    • Compute Means

    • Determine Maximum & Minimum Values

    • Compare computed data to keyed data


Deliverables l.jpg
Deliverables

  • Data Files on CD

    Hourly

    Daily Mean

    Monthly Mean

    Maximum Values

    Minimum Values

    Discrepancy Report


Data format hourly values l.jpg
Data Format - Hourly Values

  • File Name - gggg_yyy.HLY

    e.g. 5014_955.HLY

  • Line of Data

    1 2 3

    123456789012345678901234567890

    1955 1 31 24 581.00

    1955 2 1 1 581.13


Data format daily mean values l.jpg
Data Format - Daily Mean Values

  • File Name - gggg_yyy.DLY

    e.g. 5014_955.DLY

  • Line of Data

    1 2

    1234567890123456789012345

    1955 1 31 581.10

    1955 2 1 581.16


Data format monthly mean values l.jpg
Data Format - Monthly Mean Values

  • File Name - gggg_yyy.MON

    e.g. 5014_955.MON

  • Line of Data

    1 2

    12345678901234567890

    1955 1 581.20

    1955 2 581.00


Data format maximum values l.jpg
Data Format - Maximum Values

  • File Name - gggg_yyy.MAX

    e.g. 5014_955.MAX

  • Line of Data

    1 2 3

    123456789012345678901234567890

    1955 1 3 228 581.77

    1955 2 12 1125 581.51


Data format minimum values l.jpg
Data Format - Minimum Values

  • File Name - gggg_yyy.MIN

    e.g. 5014_955.MIN

  • Line of Data

    1 2 3

    123456789012345678901234567890

    1955 1 21 1340 580.37

    1955 2 5 1310 580.22


Data format discrepancy report l.jpg
Data Format - Discrepancy Report

  • File Name - gggg_yyy.REP

    e.g. 5014_955.REP

  • Line of Data

    1 2 9

    12345678901234567890123...4567890

    1955 11 Descriptive Text


Nos responsibilities l.jpg
NOS Responsibilities

  • Resolve Discrepancies

  • Adjust Datum

  • Access via WEB


Projected costs l.jpg
Projected Costs

  • 1 COTR (80 hrs. @ $44.52) $3,562

  • 1 Preparer (80 hrs. @ $29.47) 2,358

  • 2 Reviewer (500 hrs. @ $19.25) 9,625

  • Keying 400,000

    Total $415,545


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