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  Access Instructions
 
Related Links

CDIP Products

Once data have been acquired and processed, CDIP makes them available to users in a variety of forms. In addition to CDIP's standard data files, the web site offers a wide range of tools and services that provide graphical, tabular, and text analyses of both realtime and historic data. In this way all users - from researchers looking for the most detailed, extensive data set possible, to surfers just checking the waves - can find the information that they need.

File and data formats

When browsing CDIP data, there a couple of points to keep in mind. First, the times given on files and data values are start times, from the very beginning of the sample period. Second, summary values - wave height, average period, sea surface temperature, etc. - are computed for sampling periods that are generally near 30 minutes or one hour in duration.

Click on any of the file/data types below for a detailed description of its format.

Web products

Some of the pages on this website provide access to a number of specialized products. To view the descriptions of these products, select the appropriate page from the list below.

Recent observed page: Summary tables, summary maps for all stations
Recent-observed station pages: Latest plots and tables for a single station
Recent nowcast page: The California swell models
Recent forecast page: Three and five day forecast products
Historic-data station pages: Access to all data/plot products

NDBC XML/NWS Format

CDIP sends the NDBC a full spectral file in XML format. This facilitates integration with GTS/AWIPS and allows dissemination to NWS offices.

View Sample Wave XML File

View Sample Wind XML File

Coastal Ocean Observing Systems and CDIP


    CDIP deploys and maintains instrumentation in several of the Integrated Ocean Observing System regions. By collaborating with the various regions, we hope to enhance coastal observations.

SCCOOS projects:         Huntington Beach Experiment 2006

CDIP has a highly-developed data collection, processing, and analysis infrastructure which facilitates the integration of its ocean measurements into SCCOOS and CeNCOOS. Since its inception in 1976, CDIP's goals have reflected many of the same emphases as recent ocean observing initiatives, namely:
  • To generate accurate and high-quality scientific data;
  • To process and distribute data to users in near real-time; and
  • To be responsive to the changing demands and needs of its users.
To allow the direct presentation of CDIP data on the SCCOOS website, CDIP has developed a special data access script. This script provides the latest ocean measurements in an easily parsed, asterisk-delimited format that includes the stations' current locations and water depths.
      http://cdip.ucsd.edu/data_access/sccoos.cdip
For details of the formatting, try the help option:
      http://cdip.ucsd.edu/data_access/sccoos.cdip?help

CDIP's website is also equipped to present a range of text and graphic products based on spectral data submitted by cooperating agencies. For details on this process, please contact us and refer to our data submission guidelines.

QARTOD

CDIP is an active member of the QARTOD (Quality Assurance of Real-Time Ocean Data) effort. This is an IOOS community effort to standardize quality assurance and quality control parameters among data providers. Thus far, waves, in-situ currents, remote currents and CTD have been addressed. Summary tables of quality control measures have been developed for both waves and in-situ currents; refer to the links below.
Waves QC table Currents QC table Draft Waves QA table QARTOD homepage

Wave Eval Tool

To assist with the wave measurement community's comparison and validation of various wave sensors, CDIP has developed a a special tool for analyzing spectral wave data. Details from co-location experiments and the tool itself can be accessed online. In partnership with the Joint Technical Commission for Oceanography and Marine Meteorology (JCOMM) , wave sensor intercomparison test results may also be found on JCOMM's Wave mensurement Evaluation and Test page .

Metadata

All of CDIP's data sets are described by detailed metadata, which is continuously updated and available online in a number of formats. FGDC-compliant metadata are included, in both HTML and XML formats. The metadata for any specific data set are accessible from the station pages in the historic section of the website. In addition to the standard, on-the-fly web pages, static XML metadata files are available for download or harvesting from a web-accessible folder.
FGDC metadata details Sample FGDC metadata
Data coverage statistics for CDIP's Datawell buoys can be found on our spectral data coverage page .

Outreach: Custom Products and Display Pages

To aid both research and education efforts, CDIP produces a number of customized products for different institutions. Some of these products are specialized plots and data files, geared towards a specific investigation; others are general display pages, intended to educate the public and promote awareness about the numerous oceanographic resources available on the web today. Listed below are examples of the various types of custom products that have been generated.

Products that are automatically tranferred to associated agencies in near real-time
  • Los Angeles County coastal wave heights generated from buoy readings and CDIP's swell models are transferred every hour to the Coastal Monitoring Network, whose Watch the Water website provides real-time beach information for all of LA County.

  • Every thirty minutes the latest measurements from CDIP's buoys are transmitted to the NDBC and the NWS. Please see the next section of the documentation, Access Instructions, for more details on these collaborations.
Products that are prepared for associated agencies and available via the web
  • Diablo Canyon wave height and period forecasts are updated hourly for use by managers at Pacific Gas and Electric's Diablo Canyon Nuclear Power Plant. ( Latest forecast )

  • Detailed wave modeling is performed in the San Pedro Channel/Long Beach Harbor vicinity to faciltate the operation of the numerous shipping operations in the area. ( Latest model )
Products and web pages that are customized for specific venues
Click any thumbnail to view. Aquarium pages above, Channel Islands page at right.


Products that are created in response to specific events
  • When Alaska Airlines Flight 261 crashed off of Pt. Mugu on January 31, 2000, CDIP immediately started creating wave and wind forecasts for the recovery area that were available over the web.

Access Instructions

In the early days, the most efficient and cost-effective way for CDIP to disseminate its data was via monthly and yearly reports, printed and distributed to interested agencies and researchers. But by the mid-1990s, however, things had changed dramatically, and the program began to focus its efforts on distributing data via the internet. Today, all of CDIP's data are available on the web, on a highly-trafficked site - http://cdip.ucsd.edu/ - that is continually updated with the very latest data.

Automated access to data on the CDIP site can be easily arranged through the use of our cgi scripts. For more details, please refer to the Data Access FAQ.

Station ID:
CDIP
Station ID:
NDBC
02846221
02946214
03646211
04346242
04546224
06746219
07146218
073LJPC1
07646215
09146227
09246222
09346231
09446213
09546226
09646223
09851202
10046225
10651201
10746216
10931201
11146217
12152200
12546220
12846212
13046228
13241112
13346232
13441114
13946229
14146234
14246237
14341113
14442099
14651203
14744099
15041110
15444097
15546235
15646236
15746239
15846240
16044098
16146241
16246243
16352201
16451200
16551204
16646246
16746238
16846244
16946245
17044235
17246230
17446138
17546108
17844172
17946248
18046247
18141115
18246249
18446250
18546114
18644096
18751205
18851206
19041109
19146232
19244095
19546139
19652202
19752211
19851207
20041108
20251208
20346251
20446108
20744094
21044093
21144092
21246252
21346253
43044100
43141140
43241141
43344056
60646206
651OPCP04
65544255
68546185
The latest data from CDIP stations are also available through the National Data Buoy Center's web page and Dial-A-Buoy service. Every thirty minutes the latest measurements from CDIP's buoys are transmitted to the NDBC in FM-13 format. The NDBC then distributes these data through through their Advanced Weather Interactive Processing System (AWIPS). In the list at left are Station IDs for all buoys currently accessible through the NDBC.

Data is transmitted every thirty minutes to the National Weather Service. The NWS incorporates these data into their weather reports, marine forecasts, and weather radio broadcasts.

NDBC and NWS integration details

Data Use and Acknowledgements

CDIP data and products are freely available for public use, provided that they are not altered in any way. When used for web displays and online resources, please provide a link to the CDIP homepage. For instance, in standard html:
Data courtesy of <a href=http://cdip.ucsd.edu/>CDIP</a>
For offline references, please choose the appropriate form from the recommended acknowledgements below.
  • Short form (figure captions, etc.)
    "... data from CDIP, Scripps Institution of Oceanography"
  • Longer form (in text)
    "...data were furnished by the Coastal Data Information Program, Integrative Oceanography Division, operated by the Scripps Institution of Oceanography."
  • Full form (acknowledgements at conclusion of papers, etc.)
    "...data were furnished by the Coastal Data Information Program (CDIP), Integrative Oceanography Division, operated by the Scripps Institution of Oceanography, under the sponsorship of the U.S. Army Corps of Engineers and the California Department of Parks and Recreation."

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CDIP's major funding contributors are the US Army Corps of Engineers and the California Department of Boating and Waterways.
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