Aging HF Radar Network

The MARACOOS HF Radar Network was formed in 2007 with the funding of the proposal “Phased Deployment and Operation of the Mid Atlantic Regional Coastal Ocean Observing System (MARCOOS)”.  The network has grown from 24 stations in 2007 up to 38 stations in 2018.  The network has been delivering hourly surface currents to the US Coast Guard since May 2009 with no interruption.  However the age of the network is weighing on the operations as some of the stations in the network are approaching 20 years of service.  The figure below chronicles the age of the radars in the network as of 2018.

Time line indicating the age of the HF Radar stations in the Mid Atlantic.  The green line indicates stations that are less than 10 years old while red shows number of stations with a service life greater than 10 years.

Quality Control of Bistatic Signals

Robert Forney and I configured the RATH site to receive bistatic signals from WOOD.  We turned this on Tuesday June 5th.  We ran it for 19 hours and looked at the data.  There were several large vectors in each of the elliptical maps.  We looked at the elliptical options.txt file and saw that line 6 DC RC start was set to 45 when it should have been set to 50.  We changed it to 50 and reprocessed the data.  We placed the original data set on the desktop in a folder called “Elliptical Data”.  The data spans from June 5 1800 to June 6 1300.

ru23 as a drifter, Travis Analysis

Travis performed some analysis on ru23 as a drifter.  Here are some figures that he generated.  On Feb 13 He sent via email a mat file that contains the data.  The name of the file is Irene_Travis.mat.  The data file contains 9388 data points.  The start time is August 27, 2011 16:34:42 and the end time is August 31, 2011 12:36:44.  That is 3.8 days or a measurement every 35 seconds.

Full Deployment Map for ru23

Zoom in of ru23 after it became a drifter

time series of drifter velocity

Wavelet of ru23 as drifter

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Fisher Island – Ideal Pattern Results

Stadt Munchen - Ideal PAM

Westerhaven Ideal - PAM

Yorktown Express - Ideal - PAM

Yorktown Express

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Westerhaven

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Vi-nais

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Stadt Munchen

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Sea Flower

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Maersk Westport

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