Ship Observation Quality Control (and other updates) at the Ocean Prediction Center LT Christy Schultz Technical Operations Coordinator Ocean Prediction.

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Presentation transcript:

Ship Observation Quality Control (and other updates) at the Ocean Prediction Center LT Christy Schultz Technical Operations Coordinator Ocean Prediction Center 27 August 2015 United States Port Meteorological Officers Meeting

Overview Importance of ship observations Importance of ship observations Ship observation quality control via CREWWS Ship observation quality control via CREWWS PMO/OPC coordination PMO/OPC coordination

Location, Location, Location

CREWSS – QC Software C ollect R eview E dit W eather data (from the) S ea S urface

CREWSS Flagging Criteria “Quality Control is half science and half art.” - Scott Prosise “Quality Control is half science and half art.” - Scott Prosise

History file shows 77.7W entered instead of 7.7W

Update from OPC

Future Opportunities

Auxilliary Slides

The following slides were generated by Scott Prosise, OPC Senior Marine Forecaster and step through the QC process

Starting the QC Session – Global view

Menu Options

Going to the first observation …

Observed Model Difference

Keep or Reject Parameters QC Progress

History file shows 77.7W entered instead of 7.7W

10 day history

Most common human error: Geographical 37N became 77N !

Means Another digit transposition 42.6N instead of 24.6N

Observation “repaired” and data saved

Ship GBTT is flagged for being 4.3 mb too high, … but is it?

NO! The history file reveals that the Queen Elizabeth 2 is a reliable observer. So…

The QE2 gets a “keep” flag and the model is told to analyze for the data.

Data from buoys … Not always perfect, but usually very reliable Average 40+ obs per day Mean of < 1.0