C oastal d ata i nformation p rogram 1975 present
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C OASTAL D ATA I NFORMATION P ROGRAM 1975 - present. Quality Assurance of Real-Time Data February 2004. Real-Time Web Products. Southern California Summary Map. Nowcast Model Products. 1995: Wave Data Standards Analysis – US Army Corps of Engineers

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C OASTAL D ATA I NFORMATION P ROGRAM 1975 - present

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C oastal d ata i nformation p rogram 1975 present

COASTALDATAINFORMATIONPROGRAM1975 - present

Quality Assurance of Real-Time Data

February 2004


C oastal d ata i nformation p rogram 1975 present

Real-Time Web Products

Southern California

Summary Map

Nowcast Model Products


C oastal d ata i nformation p rogram 1975 present

1995: Wave Data Standards Analysis –

US Army Corps of Engineers

“… provide specifications on the analysis techniques that must be applied to wave data ….to ensure quality and uniformity of the final product. …

The standard has evolved through a consensual approach involving the principal organizations which are responsible for the vast majority of wave measurements for this country. “

2003: Handbook of Automated Data Quality Control Checks and Procedure of the National Data Buoy Center


Quality assurance pressure sensor calibration

QUALITY ASSURANCEPressure Sensor Calibration

DEEP TANK

Soak complete package (sensors & cable) –

Establish noise floor

  • COLD BOX

  • Constant Temperature

  • Standard Paros

  • Battery of statistical test of dynamic pressure responses over several weeks to establish noise floor.


C oastal d ata i nformation p rogram 1975 present

Generated from Aceh,

Indonesia earthquake on

Dec 26, 2005 @ 00:59UTC.


Quality control specifications pressure sensors time domain

Quality Control SpecificationsPressure Sensors: Time Domain

  • Max Wave Height Test

  • Flat episodes Test

  • Spike Test

  • Max value Test: successive trough to crest

  • Min Value Test: successive trough to crest

  • Mean Shift Test

  • Equal Peaks Test

  • Acceleration Test

  • Mean crossing Test

  • Period Distribution Test


Quality control specifications wave buoys frequency domain

Quality Control SpecificationsWave Buoys: Frequency Domain

  • Check Factors Test – ratio of vertical to horizontal displacement

  • Inclination Test

  • Period exceedence Test

    Quality of Telemetery:

  • Discontinuities in transmission

  • Data Corruption


C oastal d ata i nformation p rogram 1975 present

Central Computer Automated Real-Time Processing

Time Series

Time Domain Quality Control

Frequency Domain

PRODUCTS

NWS/NDBC Transmission

Station Specific Requests

WEB UPDATEReal-Time/Historical

Pub/Non-Public

STORAGE rawspectralparameters

Error/Diagnostic Statistics

Post Processing

Inter-comparison of last

24 hours


1 06 01 07 11 2003 20 19 30 hrs utc code 551 bdd editor f tp out of bounds 33 33

Waimea Buoy, HA – Frequency Domain QC

106: First indicated bad by TP errors > 30s

-106 01 07/11/2003 20:19:30 hrs UTC code=551: (bdd_editor.f) Tp out of bounds: 33.33

Flagged as NON-PUB 7/11/03

BAD – Energy in Low Frequency for all records


C oastal d ata i nformation p rogram 1975 present

Scripps Canyon NorthWest BuoyFrequency Domain QCCheck factor values 114 0108/16/2003 00:39:30 hrs UTC code=500: (bdd_editor.f) Abnormally high check factors (relationship between vertical and horizontal cross-spectra)

Calibration Test – Bad displacement

Direction & Period erratic. Retrieved buoy and performed calibration tests.


Wave data

Wave Data

Torrey Pines Inner –

20m deep

Torrey Pines Outer –

549m deep

Buoys approximately 6 miles apart


Dana point buoy ca

Dana Point Buoy, CA

First indicated bad by inclination errors (> 5°)

  • 096 01 09/13/2003 18:59:30 hrs UTC code=702: (buoy_stats.f) Inclination off, arch: 58.52 file: 52.73

GOOD DISPLACEMENT PLOT

BAD – Exagerrated Horizontal Amplitude


Modeling waves across the basin

Modeling Waves Across the Basin

Headland shadowing

Refractive

effects

Directional

wave buoy

to initiate

model

Island

shadowing

Diffraction

effects

Amplificationover shoals


C oastal d ata i nformation p rogram 1975 present

Pacific Gas & Electric Company Diablo Canyon Nuclear Power Plant

2004


Cdip in house diagnostics

CDIP In-House Diagnostics

  • Paged:

    • off site (GPS & ARGOS)

    • data is > 1 hr old,

    • computer system is down,

    • computer partitions are > 90% full.

  • Programmers emailed :

    • Offsite

    • Data > 1 hr old, power outages, data

      transfer failedSystem messages


Cdip diagnostics

CDIP Diagnostics

2004- Data Collection Coverage Percentages

---------------------------------

La Jolla – 99.89%

Torrey Pines O – 95.29%

San Pedro – 95.24

Santa Monica – 99.64%

Pt Dume – 95.88%

Goleta – 97.06%

Harvest – 94.70%

Pt. Reyes – 91.88%

Grays Harbor – 99.31%

Guam – 99.72%


Http cdip ucsd edu

http://cdip.ucsd.edu


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