<!DOCTYPE html>
<!-- Generated by pkgdown: do not edit by hand --><html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><title>Seawater Conservative Temperature (GSW Formulation) — swConservativeTemperature • oce</title><script src="../deps/jquery-3.6.0/jquery-3.6.0.min.js"></script><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><link href="../deps/bootstrap-5.3.1/bootstrap.min.css" rel="stylesheet"><script src="../deps/bootstrap-5.3.1/bootstrap.bundle.min.js"></script><link href="../deps/font-awesome-6.4.2/css/all.min.css" rel="stylesheet"><link href="../deps/font-awesome-6.4.2/css/v4-shims.min.css" rel="stylesheet"><script src="../deps/headroom-0.11.0/headroom.min.js"></script><script src="../deps/headroom-0.11.0/jQuery.headroom.min.js"></script><script src="../deps/bootstrap-toc-1.0.1/bootstrap-toc.min.js"></script><script src="../deps/clipboard.js-2.0.11/clipboard.min.js"></script><script src="../deps/search-1.0.0/autocomplete.jquery.min.js"></script><script src="../deps/search-1.0.0/fuse.min.js"></script><script src="../deps/search-1.0.0/mark.min.js"></script><!-- pkgdown --><script src="../pkgdown.js"></script><meta property="og:title" content="Seawater Conservative Temperature (GSW Formulation) — swConservativeTemperature"><meta name="description" content="Compute seawater Conservative Temperature, according to the GSW/TEOS-10
formulation."><meta property="og:description" content="Compute seawater Conservative Temperature, according to the GSW/TEOS-10
formulation."></head><body>
    <a href="#main" class="visually-hidden-focusable">Skip to contents</a>


    <nav class="navbar navbar-expand-lg fixed-top bg-light" data-bs-theme="light" aria-label="Site navigation"><div class="container">

    <a class="navbar-brand me-2" href="../index.html">oce</a>

    <small class="nav-text text-muted me-auto" data-bs-toggle="tooltip" data-bs-placement="bottom" title="">1.8-4</small>


    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar" aria-controls="navbar" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>

    <div id="navbar" class="collapse navbar-collapse ms-3">
      <ul class="navbar-nav me-auto"><li class="active nav-item"><a class="nav-link" href="../reference/index.html">Reference</a></li>
<li class="nav-item dropdown">
  <button class="nav-link dropdown-toggle" type="button" id="dropdown-articles" data-bs-toggle="dropdown" aria-expanded="false" aria-haspopup="true">Articles</button>
  <ul class="dropdown-menu" aria-labelledby="dropdown-articles"><li><a class="dropdown-item" href="../articles/A_oce.html">1. Introduction to Oce</a></li>
    <li><a class="dropdown-item" href="../articles/B_ctd.html">2. Analysis of CTD data</a></li>
    <li><a class="dropdown-item" href="../articles/C_adp.html">3. Analysis of acoustic-Doppler data</a></li>
    <li><a class="dropdown-item" href="../articles/D_map_projections.html">4. Using map projections</a></li>
    <li><a class="dropdown-item" href="../articles/E_flags.html">5. Dealing with data-quality flags</a></li>
    <li><a class="dropdown-item" href="../articles/F_subclassing.html">6. Subclassing oce objects</a></li>
    <li><a class="dropdown-item" href="../articles/G_altering_defaults.html">7. Altering oce Defaults</a></li>
    <li><a class="dropdown-item" href="../articles/H_tides.html">8. Tidal Analysis</a></li>
  </ul></li>
<li class="nav-item"><a class="nav-link" href="../news/index.html">Changelog</a></li>
      </ul><ul class="navbar-nav"><li class="nav-item"><form class="form-inline" role="search">
 <input class="form-control" type="search" name="search-input" id="search-input" autocomplete="off" aria-label="Search site" placeholder="Search for" data-search-index="../search.json"></form></li>
<li class="nav-item"><a class="external-link nav-link" href="https://github.com/dankelley/oce/" aria-label="GitHub"><span class="fa fab fa-github fa-lg"></span></a></li>
      </ul></div>


  </div>
</nav><div class="container template-reference-topic">
<div class="row">
  <main id="main" class="col-md-9"><div class="page-header">

      <h1>Seawater Conservative Temperature (GSW Formulation)</h1>
      <small class="dont-index">Source: <a href="https://github.com/dankelley/oce/blob/HEAD/R/sw.R" class="external-link"><code>R/sw.R</code></a></small>
      <div class="d-none name"><code>swConservativeTemperature.Rd</code></div>
    </div>

    <div class="ref-description section level2">
    <p>Compute seawater Conservative Temperature, according to the GSW/TEOS-10
formulation.</p>
    </div>

    <div class="section level2">
    <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">swConservativeTemperature</span><span class="op">(</span></span>
<span>  <span class="va">salinity</span>,</span>
<span>  temperature <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  pressure <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  longitude <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  latitude <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  debug <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/options.html" class="external-link">getOption</a></span><span class="op">(</span><span class="st">"oceDebug"</span><span class="op">)</span></span>
<span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


<dl><dt id="arg-salinity">salinity<a class="anchor" aria-label="anchor" href="#arg-salinity"></a></dt>
<dd><p>either practical salinity (in which case <code>temperature</code>
and <code>pressure</code> must be provided) <em>or</em> an <code>oce</code> object (in
which case <code>salinity</code>, etc. are inferred from the object).</p></dd>


<dt id="arg-temperature">temperature<a class="anchor" aria-label="anchor" href="#arg-temperature"></a></dt>
<dd><p><em>in-situ</em> temperature (\(^\circ\)C), defined
on the ITS-90 scale; see “Temperature units” in the documentation for
<code><a href="swRho.html">swRho()</a></code>.</p></dd>


<dt id="arg-pressure">pressure<a class="anchor" aria-label="anchor" href="#arg-pressure"></a></dt>
<dd><p>pressure (dbar)</p></dd>


<dt id="arg-longitude">longitude<a class="anchor" aria-label="anchor" href="#arg-longitude"></a></dt>
<dd><p>longitude of observation.</p></dd>


<dt id="arg-latitude">latitude<a class="anchor" aria-label="anchor" href="#arg-latitude"></a></dt>
<dd><p>latitude of observation.</p></dd>


<dt id="arg-debug">debug<a class="anchor" aria-label="anchor" href="#arg-debug"></a></dt>
<dd><p>an integer specifying whether debugging information is
to be printed during the processing. This is a general parameter that
is used by many <code>oce</code> functions. Generally, setting <code>debug=0</code>
turns off the printing, while higher values suggest that more information
be printed. If one function calls another, it usually reduces the value of
<code>debug</code> first, so that a user can often obtain deeper debugging
by specifying higher <code>debug</code> values.</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
    <p>Conservative temperature in degrees Celcius.</p>
    </div>
    <div class="section level2">
    <h2 id="details">Details<a class="anchor" aria-label="anchor" href="#details"></a></h2>
    <p>If the first argument is an <code>oce</code> object, then values for salinity,
etc., are extracted from it, and used for the calculation, and the
corresponding arguments to the present function are ignored.</p>
<p>The conservative temperature is calculated using the TEOS-10 function
<a href="http://teos-10.github.io/GSW-R/reference/gsw_CT_from_t.html" class="external-link">gsw::gsw_CT_from_t</a> from the <a href="https://CRAN.R-project.org/package=gsw" class="external-link"><span class="pkg">gsw</span></a> package.</p>
    </div>
    <div class="section level2">
    <h2 id="references">References<a class="anchor" aria-label="anchor" href="#references"></a></h2>
    <p>McDougall, T.J. and P.M. Barker, 2011: Getting started with
TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, 28pp.,
SCOR/IAPSO WG127, ISBN 978-0-646-55621-5.</p>
    </div>
    <div class="section level2">
    <h2 id="see-also">See also<a class="anchor" aria-label="anchor" href="#see-also"></a></h2>
    <div class="dont-index"><p>The related TEOS-10 quantity “absolute salinity” may be computed
with <code><a href="swAbsoluteSalinity.html">swAbsoluteSalinity()</a></code>.  For a ctd object, conservative
temperature may also be recovered by indexing as e.g.
<code>ctd[["conservativeTemperature"]]</code> or <code>ctd[["CT"]]</code>.</p>
<p>Other functions that calculate seawater properties:
<code><a href="T68fromT90.html">T68fromT90</a>()</code>,
<code><a href="T90fromT48.html">T90fromT48</a>()</code>,
<code><a href="T90fromT68.html">T90fromT68</a>()</code>,
<code><a href="computableWaterProperties.html">computableWaterProperties</a>()</code>,
<code><a href="locationForGsw.html">locationForGsw</a>()</code>,
<code><a href="swAbsoluteSalinity.html">swAbsoluteSalinity</a>()</code>,
<code><a href="swAlpha.html">swAlpha</a>()</code>,
<code><a href="swAlphaOverBeta.html">swAlphaOverBeta</a>()</code>,
<code><a href="swBeta.html">swBeta</a>()</code>,
<code><a href="swCSTp.html">swCSTp</a>()</code>,
<code><a href="swDepth.html">swDepth</a>()</code>,
<code><a href="swDynamicHeight.html">swDynamicHeight</a>()</code>,
<code><a href="swLapseRate.html">swLapseRate</a>()</code>,
<code><a href="swN2.html">swN2</a>()</code>,
<code><a href="swPressure.html">swPressure</a>()</code>,
<code><a href="swRho.html">swRho</a>()</code>,
<code><a href="swRrho.html">swRrho</a>()</code>,
<code><a href="swSCTp.html">swSCTp</a>()</code>,
<code><a href="swSR.html">swSR</a>()</code>,
<code><a href="swSTrho.html">swSTrho</a>()</code>,
<code><a href="swSigma.html">swSigma</a>()</code>,
<code><a href="swSigma0.html">swSigma0</a>()</code>,
<code><a href="swSigma1.html">swSigma1</a>()</code>,
<code><a href="swSigma2.html">swSigma2</a>()</code>,
<code><a href="swSigma3.html">swSigma3</a>()</code>,
<code><a href="swSigma4.html">swSigma4</a>()</code>,
<code><a href="swSigmaT.html">swSigmaT</a>()</code>,
<code><a href="swSigmaTheta.html">swSigmaTheta</a>()</code>,
<code><a href="swSoundAbsorption.html">swSoundAbsorption</a>()</code>,
<code><a href="swSoundSpeed.html">swSoundSpeed</a>()</code>,
<code><a href="swSpecificHeat.html">swSpecificHeat</a>()</code>,
<code><a href="swSpice.html">swSpice</a>()</code>,
<code><a href="swSpiciness0.html">swSpiciness0</a>()</code>,
<code><a href="swSpiciness1.html">swSpiciness1</a>()</code>,
<code><a href="swSpiciness2.html">swSpiciness2</a>()</code>,
<code><a href="swSstar.html">swSstar</a>()</code>,
<code><a href="swTFreeze.html">swTFreeze</a>()</code>,
<code><a href="swTSrho.html">swTSrho</a>()</code>,
<code><a href="swThermalConductivity.html">swThermalConductivity</a>()</code>,
<code><a href="swTheta.html">swTheta</a>()</code>,
<code><a href="swViscosity.html">swViscosity</a>()</code>,
<code><a href="swZ.html">swZ</a>()</code></p></div>
    </div>
    <div class="section level2">
    <h2 id="author">Author<a class="anchor" aria-label="anchor" href="#author"></a></h2>
    <p>Dan Kelley</p>
    </div>

    <div class="section level2">
    <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="fu">swConservativeTemperature</span><span class="op">(</span><span class="fl">35</span>, <span class="fl">10</span>, <span class="fl">1000</span>, <span class="fl">188</span>, <span class="fl">4</span><span class="op">)</span> <span class="co"># 9.86883</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] 9.86883</span>
<span class="r-in"><span></span></span>
</code></pre></div>
    </div>
  </main><aside class="col-md-3"><nav id="toc" aria-label="Table of contents"><h2>On this page</h2>
    </nav></aside></div>


    <footer><div class="pkgdown-footer-left">
  <p>Developed by Dan Kelley, Clark Richards.</p>
</div>

<div class="pkgdown-footer-right">
  <p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.1.0.9000.</p>
</div>

    </footer></div>





  </body></html>

