Monthly Archives: August 2017

Map of Planned Satellite Acquisitions

This week, CSTARS has ordered satellite SAR data takes for the first week of September, and a shared map has been created that will show all planned acquisition times, spatial coverages, and additional parameters from now on.

This map is based on the Experiment Plan V4 and includes some of its layers (Bathymetry, Wave Moorings, Marine Radar) for orientation, but it is a separate map because the Experiment Plan has used up the maximum possible number of 10 layers.

Link to the new map: https://drive.google.com/open?id=1OIXSoKXApeu_wkSMyfIvuWAbwuc&usp=sharing

Due to a data base issue, only the first two data takes are shown in the first version of the map. We hope to be able to add the remaining ones for the first week (8 more) soon; then the map will be updated every few days as we order additional data takes.

Another upcoming wind shift

The NRL COAMPS atmospheric model predicts another upcoming regional shift in the wind conditions off of Pt. Sal. The figure on top is the latest nowcast. A portion of a high-pressure system is seen offshore of Pt. Sal in this 2km nested model. Winds are predominantly from the northwest, howling at 20 knots.

The bottom figure is the 72 hour forecast. Regional winds are about half as strong and now are from the West/Southwest: Another wind relaxation. Conditions might change even sooner, though – the forecast for tomorrow looks more like the bottom than the top.

Miniature Wave Buoy, Miniature MET buoy, Lion’s Head radar

Many thanks to Falk’s crew for boating Mike and Josh out to deploy the mini wave buoy and mini MET buoy.  Both are operational.

Data can be accessed for mini wave buoy   http://cordc.ucsd.edu/projects/wavebuoys/

and mini MET buoy  http://cordc.ucsd.edu/projects/metbuoys/

Let me know if you want the login/password

 

Lion’s head radar is operational and collecting data.  Sample radar scan to follow.

We ran the SharpEye at LF06 off the generator yesterday, working properly.  Electrician is coming this morning to hook up shore power.

SharpEye Deployment at LF06

After some trouble at the VAFB gate (our flatbed driver was denied access, we had to hire another driver from Santa Maria), we got to LF06 around 1PM.  The crane met us to take the container off the truck and raise the radar tower.  We were met by Jennifer Tribble (who has been incredible in assisting us), and Tiffany Whitsett to avoid trampling the protected tar plant. Sean and Carlos wired up the radar head and we called it a day.  The electrician comes today to set up a new circuit.

 

We also dropped the WAMOS radar trailer off at Lion’s Head.  We hope to get both radars operational today.

Beautiful day at Pt. Sal!

Deploying Sea-Spiders and T-chains at Pt. Sal

The past few days we have been taking advantage of the good wind and wave conditions to deploy our SeaSpiders on ADCPs and Thermistor chain moorings (Tchain) around Pt. Sal.   We have been staging out of the public boat launch at Port San Luis.   In the late afternoon, the launch and dock are relatively quiet.    Below, we are setting up the lead weights on the feet of the SeaSpiders to bring over to the R/V Saihkon.

Once the feet are set up we then transfer the SeaSpiders onto the R/V Saihkon with it’s davit.  Below, Brian, Mike, and Greg are guiding the spider as Brett runs the winch.

Once on station near Pt Sal, we then lower the SeaSpider down to the bed with the davit.  The SeaSpider is hanging on a bridle with a quick-release mechanism.  If there is no more tension on the line, it releases.  So once the SeaSpider lands on the bottom, the bridle will release.

Once the moorings and SeaSpiders are in the water, they are marked with a surface float.  Below are two surface floats marking locations PW1C and PW2C just 100 m and 200 m due west of the tip of Pt. Sal.  (Locations can be seen at the experiment map).

Another view where you can see the tip of Pt. Sal is below.

These two floats are the first two blue circles to the west of Pt Sal on the map below.

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scripps oceanography uc san diego