CalCOFI IEH-formatted ascii files

The IEH format was developed in 1983 as an archive & ascii distribution format for CalCOFI data. Coined by programmer David Newton during development of the 128-character format, IEH stands for "Is Everybody Happy?". During its design, computer punch card for data entry were 128 characters wide & space was at a premium. In order to maximize the data reporting space, decimals were removed. So IEH's ascii format is column-specific, refer to the IEH Index page for the data index. Although IEH data files are still generated for each cruise, they are considered legacy data products. They are generated strictly for continuity of the time-series and for end-users who have IEH-specific requirements such as data processing or import scripts that require this format.

IEH's are available for each cruise in two formats:

  • Observed data only (file nomenclature: YYMMarch.ieh; YY=year, MM=month). Tabulation of data from seawater samples collected and analyzed.  
  • Interpolated standard levels (file nomenclature: YYMMt.ieh). Tabulation of data from seawater samples collected and analyzed plus interpolated (calculated) standard depth data. Since bottles hung on wire or CTD bottle trips may miss target depth by a few meters, standard depths may need to be interpolated from nearby observed-depth data. Standard depth data allow models or specific-depth contour figures to be generated.

The CalCOFI Hydrographic Data Report spatial pattern figures are vertical (line 90 only) and horizontal (10 and 200 meters along the standard CalCOFI grid) contour plotted hydrographic data.

CalCOFI Hydrographic Data Report contains a table of the macrozooplankton biomass, as wet displacement volume, after removal of large (>5 ml) organisms from the starboard side of a 71 cm mouth diameter paired net (bongo net) equipped with 0.505mm plankton mesh; towed obliquely from 210 meters to the surface.

These data are available as: pdf; Microsoft Access relational database table in CalCOFI's Hydrographic Database; comma-delimited ascii file (csv).

CalCOFI Carbon -14 (14C) primary productivity experiments are conducted daily from local apparent noon (LAN) to civil twilight (CT). Three seawater samples from 6 depths (light-levels) are collected and innoculated with 14C. There are usually 15 daily incubation experiments per cruise and the resulting 14C-uptake measurements are reported separately in the cruise data report.  The tabulated data include pertinent, related hydrographic data along with primary productivity data. These data are available as: pdfs; Microsoft Access relational database - as a subset of the complete hydrographic database, separate table; primary productivity comma-delimited ascii file (csv).

CalCOFI publishes quarterly cruise Hydrographic Data Reports as electronic documents (PDFs). Each data report tabulates the seawater measurements collected on the standard 75 (Summer, Fall) or 104 (Winter, Spring) CTD-rosette stations each cruise. Please note that some cruises may have fewer reported stations due to bad weather or equipment failure that reduced the number of stations successfully occupied.
The data presented are a combination of CTD sensor data (temperature, salinity, & oxygen) and seawater analyses (salinity, oxygen, nutrients, chlorophyll-a & phaeopigments) plus derived data (sigma-theta, dynamic heights, specific volume anomaly, potential temperature). Standard depths such as 10m & 100m may include interpolated measurements and are footnoted with "ISL". ISL temperature, salinity, & oxygen data may be observed CTD sensor data, footnoted with "D". Each report includes an introduction outlining the standard practices and methods used to collect data, ancillary project participates, standard parameter contour figures, personnel, & macrozooplankton displacement volumes.

Prior to 2003, CalCOFI published & printed bi-annual hardcopy Hydrographic Data Reports which were sent to libraries, researchers, and institutions around the world. These reports have been scanned and all data reports are available as pdfs. All hydrographic report tabulated data are available in several forms: pdfs, Microsoft Access relational database, comma-separated ascii files (csv), sql database files, & xml files.


ERDDAP (the Environmental Research Division's Data Access Program) is a data server that gives you a simple, consistent way to download subsets of scientific datasets in common file formats and make graphs and maps. This particular ERDDAP installation has oceanographic data (for example, data from satellites and buoys).
The data now served through ERDDAP are derived from the entire 1950-present CalCOFI ichthyoplankton (all 450+ species) and hydrographic databases (i.e. both SWFSC and SIO managed databases). These data are accessible either through a GUI on ERDDAP, or from analysis programs (such as R, Matlab or NCL) using a URL and an Opendap-type protocol. The data are available in a variety of output formats for download. 
1950-present CalCOFI ichthyoplankton & hydrographic databases are available in queryable form.
Go to the ERDDAP home page and search CalCOFI datasets.
< http://coastwatch.pfeg.noaa.gov/erddap/index.html>

Latest Additions & Edits

9 June 2017

  • Imported final data from 2016-04 into bottle and cast tables
  • Imported final data from 2016-07 Zooplankton in the Zooplankton csv

7 Mar 2017

  • Imported 201601 zooplankton data to the zooplankton database csv

3 March 2017

  • Imported final data from 2016-01 into bottle and cast tables
  • Imported final data from 2015-01, 2015-07 and 2015-11 Zooplankton in the Zooplankton csv
  • Dates were corrected from 201107-101207 to match UTC time in the Cast Table
  • Incubation times for primary productivity data were corrected in Prodo_Bottle Table

28 Oct 2016

  • Imported final data from 201511 into bottle and Cast tables

25 Oct 2016

  • Imported 201411 zooplankton data to the zooplankton database csv

23 Sept 2016

  • Imported final data from 201507 into bottle, cast and DIC tables and imported 200808 DIC and TA data into DIC table and csv

19 Aug 2016

  • Imported 201504 and 201604 zooplankton data to the zooplankton database csv

2 Jun 2016

  • Imported final data from 201504 into bottle, cast and DIC tables

7 Dec 2015

  • Fixed Cruise_ID incremental issue from cruises 2012-11 through present in Cast table

20 Oct 2015

  • Imported final data from 201411 and 201501 into bottle, cast and DIC tables

22 July 2015

  • Added pH columns to DICs and Bottle Tables

1 July 2015

  • Added column Oxy_umol/kg to Bottle csv, xml and sql and column Cruise to Cast csv, xml and sql.

9 June 2015

  • Imported final data from 201404 and 201407 into bottle and cast tables.
  • Imported DIC data from 2014-04 and 2014-07 in DIC csv
  • Imported zooplankton data from 2013-11 through 2014-04
  • Fixed 90.45 Prodo in 2010-08.  Had values from station 93.3 26.7 of that cruise.

30 October 2014

  • Imported final data from 201311 and 201402 into bottle and cast tables.

22 September 2014

  • Imported final data from 201304 and 201307 into bottle and cast tables.

26 August 2014

  • Weather Items fixed in the Cast Table.  Erroneous zeros in wet/dry temps and wave height/period fixed.

21 March 2014

  • Fixed Station Names in the Cast Table from Line 66.7 on 201301.

17 Jan 2014

  • Imported data from 201301 into Bottle and Cast tables.

4 Nov 2013

  • Fixed DIC Sample draw errors and added DIC Quality Comment column to Bottle table.

21 Oct 2013

  • Imported data from 201210 into Bottle and Cast tables.  Added Oxy_µmol/Kg field to Bottle Table.

  Complete Listing

Go to top
Our website is protected by DMC Firewall!