Automated Quality Control of High Frequency Radar Data

Automated Quality Control of High Frequency Radar Data

Hugh Roarty, Michael Smith, John Kerfoot, Josh Kohut and

Scott Glenn

Vessels -

SatelliteSatellite

Ships/ Vessels

REMUS

Modeling

Leadership

CODAR

Glider

Data Vis.

Security

Education

CODAR Network Glider FleetSatellite Data Acquisition Stations 3-D Forecasts

Rutgers University - Coastal Ocean Observation LabOperations, Research & Education Center

CODAR Compact HF Radar Antennas

25 MHz 13 MHz 5 MHz

Combined Transmitter & Receiver Separate Transmitter & Receiver

Shed and Enclosures

EnclosureShed

monitor

A.C. unit

transmitter

computer & external hard drive

UPS system

receiver

Two lines of Communication

Lightning Protection

25 MHzRadar l: 12 m Ocean : l 6 mRange: 30 km Resolution: 1 km

13 MHzRadar l: 23 m Ocean : l 12 mRange: 80 km Resolution: 3 km

05 MHzRadar l: 60m Ocean : l 30 mRange: 180 km Resolution: 6 km

Surface Current Mapping Capability

41 Sites in the Mid Atlantic

5 MHz

13 MHz

25 MHz

133 Sites in the USA

This Mornings Coverage

Current National Network Quality Control Checks

1. Is all required metadata present and variables are within limits (-90<lat<90)

2. Is the radial over water?

3. Are the radials below the threshold– East and Gulf Coast 3 m/s– West Coast 1 m/s

261 Stations Globally

261 Stations in 21 Countries

RADIAL PROCEDURES

Radial Average Bearing

AND

Comparison Between

Measured and Ideal Radials

BRMR

40°

130°

220°

BRMR Site

Antenna Problem at BRNT Site

Replaced Antenna June 8

BRNT

30°

120°

210°

Average Radial Velocity

RDLi_BRMR_2012_08_1300

5 cm/s

RDLi_BRMR_2012_08_1400

7 cm/s

RDLi_BRMR_2012_08_1500

10 cm/s

FFT of Average Radial Velocity Time Series

CENTRAL AGGREGATION

Radial Database• Central location to

monitor region• Automatic

reprocessing of totals with new radials

Administration of the Network by the Operators

TOTAL METRICS

Red Points are the 6 km National Network grid

Black Points are:1) Within 150 km of the

coast

AND

2) Water depths greater than 15 m

Most Recent Progress Period