What’s new with Argo data?

Are you an Argo data user?  If so, browse through these slides (pdf or pptx version) to learn all about the Argo data set in 2022 and 2023. We share how many profiles have been measured, how fast the data is getting delivered onto the GTS as well as information about newly available tools to access Argo data. We also … Read More

US GDAC to stop FTP downloads in near future

FTP will be disallowed on the US GDAC / ARGO in the near future.   The exact date is unknown, but it could be as early as this month. At that point ftp’s to ftp.usgodae.org (for puts) and usgodae.org (for gets) will cease to work. Folks that have been using ftp to download data from the US GDAC / ARGO should … Read More

Notice of Argo data flow interruption

There will be an interruption in telecommunications service starting around 18 October 2023 that will halt real-time transmissions from as many as 813 of the 2000+ operational US Argo floats. This interruption amounts to as much as 21% of the global Argo array going temporarily offline.  Many US Argo float providing activities will also have to be curtailed or halted … Read More

SBS issues notice for some CDOM fluorometers

Sea-Bird Scientific issued a notification that some CDOM fluorometers have been reported to measure biased values.  The bias has been traced back to three distinct root causes: Incorrect primary CDOM standard In situ bias Out-of-tolerance UV LED For more information, please see their notification.

Community notice about pH sensors

Sea-Bird Scientific has notified the Argo community of an elevated risk of early-life failure for pH sensors shipped after June 2022.  Please see this notice directly from Sea-Bird for more information.

Monthly snapshot of BGC Sprof files available with the Argo data snapshot

We’re happy to announce that routine monthly archives of the Argo GDAC now include a separate zip component which contains all available *Sprof.nc files: “BGC Sprof data files (yyyy-mm-dd snapshot)”, which can be accessed here:  https://doi.org/10.17882/42182 Users interested in BGC data can now download a snapshot of all Sprof files (~2GB) without downloading the entire GDAC (>48GB).

RBR data may be distributed with improved quality control flags

Data from rbrargo3 CTDs calibrated after April 2021 will now be distributed with improved qc flags.  TEMP, PRES and PSAL may all receive a qc flag of ‘1’ if they pass the real time quality control tests.  The data can be distributed on the GTS. Data from rbrargo3 CTDs calibrated prior to April 2021 will continue to receive PSAL_QC flags … Read More

Fresh salinity anomalies found in Argo float 5906299

RBR has analyzed the salinity from Argo APEX float 5906299 equipped with an RBRargo3 CTD and has found a clear and sudden fresh salinity anomaly after about 30 cycles.  It was determined that the float spent an abnormally long amount of time at the surface on several occasions, often preceding a clear salinity anomaly event.  It is hypothesized that the … Read More

Argo “Salty drift” Salinity Data Issue Notice 2021

Starting in 2015, an increased number of Sea-Bird conductivity cells used on Argo floats have drifted salty (https://argo.ucsd.edu/data/data-faq/#sbepsal).   The fraction of “salty drifters” has been correlated with particular CTD batches, with some percentages being greater than 50% by the end of their second year after deployment.  Sea-Bird Scientific has implemented a manufacturing change at the end of 2018, and … Read More

Fast Salty Drifters documented by DMQC operators

The DMQC operators have filled in this Google spreadsheet with information on which floats have exhibited signs of Fast Salty Drift.  It has been set up to perform calculations and create plots automatically, so please follow the instructions.  There are several sheets to look at including some that pertain to just European floats and others that are international.