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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
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
Water Levels on the Great Lakes
  • Published Since 1860
  • Uses of Archived data
project goals
Project Goals
  • Digitize Archived Data
  • Data available on CO-OPS Web Page
data set description
Data Set Description
  • Quantity

1,400 Station Years of data

(12.9 million entries)

  • Media

Water Level Books

Tabular Pages

required rescue activity
Required Rescue Activity
  • Key Data
  • Quality Control Check
    • Compute Means
    • Determine Maximum & Minimum Values
    • Compare computed data to keyed data
deliverables
Deliverables
  • Data Files on CD

Hourly

Daily Mean

Monthly Mean

Maximum Values

Minimum Values

Discrepancy Report

data format hourly values
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
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
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
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
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
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
NOS Responsibilities
  • Resolve Discrepancies
  • Adjust Datum
  • Access via WEB
projected costs
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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