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<div class="section" id="data-acquisition">

<span id="index-0"></span><span id="id1"></span>

<ul class="simple">

<li>Every hour, we receive data from Exeter, Toulouse and Offenbach.</li>

<li>Every three hours we receive data from Washington.</li>

<li>Once a day we receive data from Tokyo.</li>

<li>Every Monday from Melbourne.</li>

<li>Every first of the month from Montreal.</li>

</ul>

<p>Three kinds of data are received:</p>

<div class="highlight-python"><pre>* Observations

* GRIB fields

* Satellite images</pre>

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<p>The acquisition is done in three steps:</p>

<div class="highlight-python"><pre>* The data is received from the outside world.

* The data is processed.

* The data is stored in a database.</pre>

</div>

<p>Once a day the data received the day before is extracted from the database and written into the archive.</p>

<p>What to do:</p>

<ol class="arabic simple">

<li>Write the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-suite-definition"><em class="xref std std-term">suite definition</em></a> for this suite</li>

</ol>

<p>Useful pointers:</p>

<blockquote>

<div><ul class="simple">

<li><a class="reference internal" href="/wiki/display/ECFLOW/Add+Trigger#add-trigger"><em>Add Trigger</em></a></li>

<li><a class="reference internal" href="/wiki/display/ECFLOW/Dates+and+Clocks#dates-and-clocks"><em>Dates and Clocks</em></a></li>

<li><a class="reference internal" href="/wiki/display/ECFLOW/Dependencies#time"><em>time</em></a></li>

<li><a class="reference internal" href="/wiki/display/ECFLOW/Dependencies#date-or-day"><em>date or day</em></a></li>

<li><a class="reference internal" href="/wiki/display/ECFLOW/Repeat#repeat"><em>Repeat</em></a></li>

<li><a class="reference internal" href="/wiki/display/ECFLOW/ecFlow+Python+Api#python-api"><em>ecFlow Python Api</em></a></li>

</ul>

</div></blockquote>

<p>Because there is no standard unix date manipulation command, you can use ecf_date.</p>

<p>One possible <a class="reference internal" href="/wiki/display/ECFLOW/Data+acquisition+solution#data-acquisition-soln"><em>Data acquisition solution</em></a></p>

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