Ocean Surface Current Data

Archive and Real-time Information and Description

UC Santa Cruz & Naval Postgraduate School

COCMP Monterey Bay

Last Updated: May 22, 2008




Primary Investigator & Lead Scientist: Jeff Paduan, paduan@nps.edu

Scientific Programmer & Oceanographer: Mike Cook, cook@nps.edu

Primary Data Technician & Marine Science Specialist: Daniel Atwater, datwater@ucsc.edu

Primary Field Technician & Marine Science Specialist: Julio Figueroa, jfgonzal@ucsc.edu





Primary server: Apple Dual-Core Intel i386 Xserve Mac OS 10.4.11

Primary data storage: Janus 4540S RAID level 6, 8 terabytes on 4 volumes

Primary matlab: single-user license (R2007b)





Please feel free to download the latest version of HFR_Progs 2.x that is not only used to create the data above but also intended to help individuals use the data more easily in a matlab environment. Please go to the following webpage to download the latest release of HFR_Progs as well as for documentation: https://cencalarchive.org/~cocmpmb/COCMP-wiki/index.php/Main_Page


The entire code that produces that is seen and made available on cencalcurrents.org is available to look at and download at




Archive Data & Plots Prior to 2008: /Volumes/Archives0/Data /Volumes/Archives0/Plots

Archive Data & Plots 2008 to present: /Volumes/Archives1/Data /Volumes/Archives1/Plots

Real-time Data & Project Resources: /Volumes/Extras

Unspecified: /Volumes/Archives2


Note: for batch scripting purposes: data path is /Volumes/ArchivesN/Data; If data < year 2008 then N = 0, Else N = 1




Note: in the information below XXXX refers to four character site codes and yyyy_mm refers to a 4-digit year and 2-digit month.

1.    Remote Site:

a.    3 types of raw data: Time Series, Range Series, Cross Spectra

                                      i.     Time Series: /Volumes/ArchivesN/Data/XXXX/Lvl/yyyy_mm

                                    ii.     Range Series: /Volumes/ArchivesN/Data/XXXX/Rng/yyyy_mm

                                   iii.     Cross Spectra: /Volumes/ArchivesN/Data/XXXX/CSS/yyyy_mm

b.    2 types of radial data: ideal and measured

                                      i.     Ideal: /Volumes/ArchivesN/Data/XXXX/RDLi/yyyy_mm

                                    ii.     Measured: /Volumes/ArchivesN/Data/XXXX/RDLm/yyyy_mm

c.     types of wave data: model, spectral hourly, and spectral history

                                      i.     Model: /Volumes/ArchivesN/Data/XXXX/WVLM/yyyy_mm

                                    ii.     Spectral Hourly: /Volumes/ArchivesN/Data/XXXX/Wave/yyyy_mm

                                   iii.     Spectral History: /Volumes/ArchivesN/Data/XXXX/WVLS/yyyy_mm

d.    2 types of diagnostic: radial and hardware

                                      i.     Radial and Hardware can both found in /Volumes/ArchivesN/Data/XXXX/STAT/yyyy_mm

2.    Central Site:

a.    4 primary domains:

                                      i.     BDGA : Bodega Bay, 2 km resolution, ~7200 km2 patch of ocean north of Point Reyes

                                    ii.     SFOO : Farallon Island Bite, 2 km resolution, ~8000 km2 patch of ocean just outside of San Francisco Bay

                                   iii.     ANVO : Año Nuevo Coastline, 2 km resolution, ~8000 km2 patch of ocean from Pillar Point to Davenport

                                   iv.     MNTY: Monterey Bay, 2 km resolution, ~8800 km2 pathch of ocean from Davenport to Point Sur and inside Monterey Bay

b.    4 primary types of data: Open Modal Analysis (OMA), Total U and V (TUV), 25-hour averaged or filtered, Trajectories (hind-cast), Predicted-trajectories (forecast)

                                      i.     OMA: surface currents mapped to uniformly spaced grid that can be input into most oceanographic models: /Volumes/ArchivesN/Data/Oma/XXXX/yyyy_mm

                                    ii.     TUV (total u and v surface current): unmapped but gridded surface currents: /Volumes/ArchivesN/Data/Totals/XXXX/yyyy_mm

                                   iii.     25-hour: both TUV and OMA: /Volumes/ArchivesN/Data/AverageTotals/XXXX/yyyy_mm

                                   iv.     Trajectories: computed from OMA derived surface currents: /Volumes/ArchivesN/Data/Trajectories/XXXX/yyyy_mm/trj*

                                    v.     Predicted-trajectories: /Volumes/ArchivesN/Data/Trajectories/XXXX/yyyy_mm/pred*

c.     Others available upon request and historically significant: GNOME, single-point or single-location, 33-hour low pass filter, single-point trajectory hind or forecast, etc.



Several historical domains exist for Monterey Bay prior to 2006 so please feel free to contact Mike Cook or Daniel Atwater with any questions pertaining to MNTY domain prior to 2006.


At present we have only reprocessed data for MNTY and ANVO from July of 2006 to January of 2008 -- i.e. so there is no reprocessed surface currents in /Volumes/Archives1 at this time nor is there any reprocessed surface currents for BDGA and SFOO. We are working toward completing our data sometime in the next couple of months so please check back or write to inquire further. We are also wanting to know what information that will make it easier for our users to access and use this data so please send along your comments and feedback.






Files pertaining to remote and central site configuration as well as miscellaneous configuration and licenses can be found in /Volumes/Extras/Configs.

1.    Remote Sites:

a.    Primary Sub-directories: named by four letter site code (see site code definitions)

                                      i.     Secondary Sub-directories: 3 types: vN, from_to, and Misc.

                                    ii.     v0: configuration files used in processing real-time data, which is not necessarily complete in that there very well could be significant gaps in time between when one configuration file existed and the next.

                                   iii.     from_to: directories contain configuration files that should be used at a particular from and to the date range given when reprocessing files. These subdirectories are not actually label from_to but rather are named with a 10-digit date/time format. For instance, in /Volumes/Extras/Configs/SCRZ there is a sub-directory called 0602090200_0602230000. This pertains to configuration files that were used to reprocess the current or recommended data found in the archives between February 9th 2006 at 02:00 GMT and February 23rd 2006 at 00:00 GMT.

                                   iv.     vN: pertains to versions of the from_to formatted configuration files and that correspond to version N radial, stat, or wave datat.

                                    v.     Misc: pertains configuration files that a researcher or user used to reprocess data for a specific purpose and should contain this information in the configuration directory name.



            Real-time information can be broken up into six categories: Data, Plots, Programs, Logs, Configuration Files, and website files. Presently on cencalcurrents.org the first five above (i.e. excluding website files) can be found in /Volumes/Extras/RealTime . This is the primary path for real-time information. All data from remote sites and that computed locally are stored in this path, hence the 5 subdirectories: Data, Plots, Progs, Logs, Configs.

      Real-time Data: /Volumes/Extras/RealTime/Data , this path contains real-time data that is either computed from locally and used for display on the website or gathered from the remote sites hourly via two scripts: CentralSiteSyncData and SyncRadialsOutsideMontereyBay. See CRONTAB below for more information. These two scripts populate the real-time data sub-directories: Radials, Ellipticals, Waves, and Diagnostics. Beyond these four sub-directories 8 other directories (AverageTotals, Gnome, Oma, PredictedOma, PredictedTrajectories, Totals, and Trajectories) are computed used information from Radials, Ellipticals, and the configuration files (/Volumes/Extras/RealTime/Configs/RT), see below. Meteo data is meteorological data collected from remote sites and LEGACY data is data collected and computed to February 2008. All data is ultimately stored in yyyy_mo (year and month) sub-directories. Both ascii and matlab .mat files are available.

      Real-time Progs: programs inclusive to real-time operations and the website, cencalcurrents.org. See the real-time crontab for a listing of the programs / drivers that are called from this directory.

      Real-time Configs: at present this contains matlab scripts that act as configuration files for each domain, and grid data for each domain as well as masks and coastline data.

      Real-time Logs: contains logs from the cronjobs, see here.

NOTE: that changes will inevitably occur to this area of our domain, mainly in the form of additions so please sure to check back in this area of this document for future changes and more information.