<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>
</div>
<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><strong>What to do:</strong></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#suite-definition-python-api"><em>suite definition 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>
</div>