Oceanographic Instrumentation - Science topic

I' m using Argo floats to investigate Agulhas eddies vertical structure and need to calculate temperature anomaly from these data. My temporal coverage is from 2008 to 2013. Which climatology is the most suitable in this case? I've using anual means but the Argo profiles seem a lot more warmer than I would expect. I am using MatLab to do the calculations but help from python users is welcomed as well.

I am analysing a coastal time-series of hourly temperature and salinity measurements. I have calculated the density using Gibbs seawater toolbox (TEOS10). In addition I have also calculated the seawater density/stability ratio $R_{\rho}$,

     $R_{\rho} = \frac{\alpha \Delta\Theta}{\beta \Delta S_A}$.

Specifically, I want to distinguish between density changes affected by either changes in temperature or salinity. So far I have just seen articles analysing the spatial distribution of the density/stability ratio, either vertical or horizontal, and mentioning that when $-1 < R_{\rho} < 1$, the density is affected mostly by changes in salinity.

Could anyone please suggest further references, especially analysing this ratio using time-series?

Cheers!

Interested on whether oceanic DMS concentration can be detected by satellite image. Only found a couple of inconclusive references from 1990s. While I have your attention, is DMS  and Chla correlated? Many thanks!

Hi all,

I'm looking for references regarding the implementation of WW3 for the NE Atlantic by IFREMER. I have access to the hindcasts through the IFREMER ftp but I can't find any reference regarding the implementation. Can anyone help with this. 

Thanks in advance!

Please see the attached dialog box and header file. During the processing profiling CTD data (SBE 25 or 25plus), how to set up these parameters? I can't understand the "surface soak depth" well. 

Lower resolution CTD can miss too much of the detail maybe? 

This may help to compare  ocean acidification studies.

VGPM- Vertically Generalized Production Model

SeaBAM model

Apart from the fact that the latter is not dependent on the concentration of suspended particles, what about general performance? I'd appreciate to know about the experience of someone who used both 

Hello everyone,

Have any of you used CT scans of sediments to get a density profile/trace? Specifically, I am working with marine and lake sediment cores. I have used CT scans before for their imagery and have exported profiles of their densities based on their grayscale values in ImageJ, Sante DICOM Viewer, and Osirix, but we'd like to move into using our CT scans a bit more quantitatively. I processed the dicom files with the same window and level settings within individual cores, but was not always able to use the same settings from one core to another when I created images (.jpegs, .tiffs, etc.) from the dicoms (sandier cores would be washed out or muddier cores would be too dark to see detail otherwise). Now, though, we'd like to access the actual, or as close to actual, densities as possible. I've read a little bit about calibrating CTs to a known value (I was thinking air that got imaged around the cores, or their PVC/plastic core liners) and about using the Hounslow scale to at least approximate actual densities. I was wondering if a) anyone's got any thoughts on finding good ways to tie CTs to actual densities, and b) if anyone can think of any pitfalls to watch out for while I do this.

Thank you for any help or suggestions you can give!

- Bran

I need that for a very short experiment in Mallorca. Any info will be wellcome. Thanks

Really...Practical, but unit-less or unpractical, but unitized? Is it important to have salinity defined in SI units? What percent of your data expressed in the Absolute salinity units, compare to the Practical salinity? 

I am asking question from the point of a manufacturer of the oceanographic instruments, where implementation of the Absolute salinity as derived parameter is under process of discussion. Would users of  the CTD probe be satisfied to obtain in derivations instead of geo-position defined Absolute salinity, simply defined Reference salinity, expressed  in g/kg ?

I have data in shapefile format and want to use in ODV.

I downloaded STAPLOT tools, but when i run this tools this error appears:

As above.

Which sensors are most likely to do it, if any?