Friday, September 27, 2013

Mahmud Hasan Ghani's Internship, Fall 2013 - Part 2

Monthly Temperature Variation 

Yes, now my days are going with only analyses can be termed as analytical season; Coriolis force, Ekman layer, Fluid Motion, Geostrophic Flows, Vorticity Dynamics in Dynamical Oceanography; Statistical Data analysis for Oceanography and Meteorology. And of course my practical work experience with the data analysis of Sail Buoy.

It’s just fantastic, if you know how to use mapping functions in Matlab with your desired geographical location and data. For last few days, I have been trying to segregate my monthly combined data into weekly sets. It was my experimental analysis that I have planned to move in step by step. Because of all data are in text format and fit for full map view; but I wanted to do it in my own way, in the most common MS Excel sheet. Reading from text format in Matlab according to my weekly set was making errors, then the easier functions I got that Matlab can read Excel file also.

Sea Surface Temperature is one of the dominant physical properties of ocean which I selected for mapping at first and all data are divided into nine weeks SST data sets to get the shorter period temperature variation. It looks great when I run all the figures in Matlab script; the moving of Sail Buoy including color changes that indicate variation of temperature distinctly. Clearly observing the difference of temperature between April and May; when average temperature of in April was 22° C, it went up to 23.5° C in May. It’s noted that in May, 2013 Sail Buoy covered the most deep sea portion of Gulf of Mexico.

Posted By:
Mahmud Hasan Ghani, Norwegian Meteorological Institute

Wednesday, September 25, 2013

Another Deep-C Benthic Ecology cruise is underway.

Well, another Deep-C Benthic Ecology research cruise is underway! 

This cruise will occupy the Deep-C benthic array with the addition of two new sites located to the ENE of DeSoto Canyon. Our sampling activities over the next ten days will include:
  • Multicore collections (3x per site) 
  • Water column profiles and rosette casts (at selected sites) 
  • MILET survey for benthic fauna and Subbottom profiles 
  • Piston coring at selected sites
This was our first multicore....
Pictured: Nicole Clark, John Kaba, George Gunthro,
Arvind Shantharam, Rebekka Larson, and Kim Pollard. 

Posted by:
Oscar Garcia-Pineda
Florida State University

Wednesday, September 18, 2013

R/V Bellows Microbiology/Shelf Sampling Cruise - September 2013

Because of a simple e-mail sent back in June, I found myself standing on a dock in Pensacola early last Saturday morning, ready to embark on a 3 day research cruise with colleagues from FSU, Valdosta State, and UWF.  Our mission?  To collect water, sediment, and plankton samples from 27 sites off the coast of Pensacola.
Map courtesy of Sarah Tominack, UWF Graduate Student

As the only newbie on the cruise it took me a few stations to get in the groove but lead researcher Dr. Wade Jeffrey of UWF and graduate student Sarah Tominack took me under their wing and made sure that I had plenty to do!
The tools of my trade.  One of my tasks was to take water samples from three different depths-surface, maximum chlorophyll, and bottom- and run them through a filter to determine chlorophyll levels.
The all-powerful CTD instrument (conductivity, temperature, depth) used to collect water samples as well as information about salinity and chlorophyll levels.
The most important tool on the ship- the winch; a grab sampler used to collect sediment from the sea floor; sediment samples taken at around 30m.
FSU undergrad Scott Byfield; Valdosta State's Dr. Jim Nienow rocking a Deep-C t-shirt; and everyone's favorite- the ice cream freezer!

What an awesome trip.  Great food, great people, and great weather all in the name of science!

Posted by:
Amelia Vaughan,
Ocean Science Educator

Wednesday, September 11, 2013

Mahmud Hasan Ghani's Internship, Fall 2013 - Part 1

Finally, I have started the SailBuoy data analysis when I was so keen to involve in this project within shortest time. It was April, 2013; I got my confirmation to join here but usually it takes time for visa process from country. I reached at Bergen on last 12th August and officially I started my jobs from 19th August at Norwegian Meteorological Institute under Dr. Lars R. Hole.

Bergen City-Top View from Norwegian Meteorological Institute.
Also for the last two weeks, I was busy with my orientation programs at University of Bergen and especially from Geophysical Institute. It’s a great experience to meet with other international students for different study programs and share our own profiles to each other. My working place Norwegian Meteorological Institute is in Geophysical Institute, University of Bergen; so it would be better to introduce myself with the new culture and system in a state that I can adapt quickly.

And yes, it’s again MATLAB; I am assigned to practice the mapping and plotting process in MATLAB as my first step of my internship. It’s quite interesting to make a map of the physical properties of sea water, like temperature, salinity, chlorophyll, etc.; sometimes it seems difficult due to use different kinds of functions with broader range. Anyhow, I am gathering all the codes quickly to make map. I have gotten all the two months data from the “SailBuoy” which already sailed in fixed area of Gulf of Mexico. SailBuoy is the latest ocean observing instrument to supply the real time data instantly; this unmanned vehicle would be the most effective instrument to collect the in situ data in the upcoming days. Without going to deep sea; we are getting the current temperature, salinity, oxygen, etc., in short time. Also, the scope of comparing remote sensing data is now widen than previous time because the possibility of track a concerned area continuously with this controlled sea going vehicle.

Today, no more, this is just a beginning; expect to write more with my new analysis and results within a short time.

Posted By:
Mahmud Hasan Ghani, Norwegian Meteorological Institute