Grain size distribution of Amazon river sediment samples collected over the period 2005-2008; and ADCP water velocity profiles collected on the major tributaries of the Amazon in Bolivia and Peru, 2007-2008

<p>This dataset contains two items:</p> <p>- The grain size distribution of river sediment samples collected along the Amazon River and its tributaries during four sampling campaigns performed in June 2005 (lower Amazon, Brazil), March 2006 (lower Amazon, Brazil), May 2007 (Upper Madeira, Bolivia), and April 2008 (Upper Solim&otilde;es-Amazonas, Peru). [spreadsheet &quot;Grain_size_distribution_dataset_Amazon_2005-2008_Bouchez_data.xlsx&quot;].</p> <p>-&nbsp; River water velocity profiles derived from Acoustic Doppler Current Profiler (ADCP) measurements performed on the major tributaries of the Amazon in May 2007 (Upper Madeira, Bolivia) and April 2008 (Upper Solim&otilde;es-Amazonas, Peru) [folder &quot;ADCP_dataset_Amazon_2007-2008_Bouchez_data&quot;].</p> <p>The dataset description and the relevant references are provided in the text files &quot;Grain_size_distribution_dataset_Amazon_2005-2008_Bouchez_description.docx&quot; and &quot;ADCP_dataset_Amazon_2007-2008_Bouchez_description.docx&quot; .</p> <p>These data were acquired thanks to the support of the French National Service for Observation &quot;HYBAM&quot; (&quot;Hydrogeochemistry of the Amazon Basin&quot;), part of the CNRS National Infrastructure &quot;OZCAR&quot; (&quot;Critical Zone Observatories: Applications and Research&quot;).</p>