May 8th Dye Release Image

The dye release yesterday (May 8th) was very interesting.   The dye release was initiated shortly after slack tide as the water started ebbing.   30 gallons of Rhodamine WT were released in 2:24 min.   As usual the mounted instruments,  the jetskis, NPS/RSMAS crew, REMUS, towed ET array, and the Partenavia were all measuring the dye plume.   At first, as the tide … Read More

Update on Dye and Drifter releases

Here is an update on the remaining schedule for drifter and dye releases. DYE RELEASES: Thursday: There will be no dye released.   Note, this is a change from the previous schedule. Friday May 11th:      Begin releasing dye at 0800:   Release dye for 1.5 hrs – (to just before slack).  Sampling on both ebb and flood. Saturday May 12th:    Begin releasing … Read More

APL-UW thermal IR imagery of the New River inlet plume

The imagery above is a preliminary mosaic of the New River inlet plume on May 2, at about 1150 EDT (the companion data to Gordon Farquaharson’s microASAR data in his May 4 post).  Brightness in the image indicates relatively warmer temperatures, and I’ve adjusted the contrast to highlight the plume, making the warmer land white. The plume on this day … Read More

5/4/2012 REMUS River Plume Survey (No Dye Release)

First ever blog post for me.  The ‘other’ Scripps group has been running the REMUS AUV to characterize inlet dynamics and map the outgoing plume.  Before the dye surveys, we ran a series of missions to survey the naturally occuring optical signals leaving the inlet over an outgoing tide.  Above are cross-sections of CDOM across 4 different transects.  We’ve also … Read More

Yesterday (May 6th) was the First Day of Dye Releases

Yesterday (May 6th) was the first day of dye releases.    Although we had a couple of glitches things overall went very smooth.   In the AM we deployed 15 fluorometers (measure dye concentration) at the SIO and WHOI current meter locations.   Combined with the velocity measurements, this allows one to make flux measurements of dye out or into the inlet.    The … Read More

NRL ATI-SAR Imagery of the New River Inlet

After arriving on Monday, our NRL SAR crew flew on Tuesday, Wednesday, and Friday of this week. Apart from some drama before the first flight (resolved with a 300-foot daisy chain of extension cords across the airport tarmac), we’ve had no major hardware issues and have enjoyed excellent SAR collection conditions: decent surface winds to roughen the water, but smooth flying at 2900′. Smooth … Read More

West Side Bedforms

Attached is a higher resolution local merged timex from today’s low tide showing detailed bedforms on the western side of the inlet.  I’m amazed by the amount of structure.  Also, we have posted a first draft web description of Argus at RIVET at cil-www.oce.orst.edu/rivet.  It includes description of our geometry set up procedure and the location of a decent 3D … Read More

APL-UW SAR imagery of the New River Inlet

The image below is an overlay of a SAR intensity image recorded by the APL-UW dual-beam along-track interferometric microASAR system (the microASAR units are developed by Artemis, Inc., http://artemisinc.net). This data was recorded on May 2 at 11:55 EDT during the low tide. A Google Earth version of this image (KMZ file) can be downloaded from http://herschel.apl.washington.edu/darla/RADAR/SAR/SNAPSHOTS/uASAR_05022012_115500CH1_image532376_-9.kmz. The width of … Read More

Day 3 of Drifter Releases

Yesterday (May 3rd) was the 3rd day of SIO drifter releases.     It was quite interesting.  We released again on an ebb tide near channel marker 8.  This time we released drifters in pairs (except for the last 3) separated by 1 minute.  With 33 drifters it took 17 minutes.   The reason for time separation was to see how that might … Read More