Chlorophyll a, LV, raster, 7/2002 to 2/2021

<p><h2>Chlorophyll (a), LV, raster, 7/2002 to 2/2021</p></h2>

<p><h3>Reference Information and Units:</p></h3>
<p>GCS: SR-ORG:14 (http://spatialreference.org/)</p>
<p>Projection: Data has not been projected.</p>
<p>Pixel Size: ~4 kilometer (km) at the equator, 0.0174532925199433 degrees</p>
<p>Units: mg m-3</p>

<p><h3>File Naming Convention:</p></h3>
<p>AYYYYDDDYYYYDDD, where A stands for the Aqua sensor platform, the first YYYYDDD represents the collection start year and Julian day, and the second YYYYDDD represents the collection end year and Julian day.</p>

<p><h3>Data Origin:</p></h3>
<p>Original dataset was downloaded from: http://oceandata.sci.gsfc.nasa.gov/MODIS-Aqua/Mapped/Monthly/4 km/chlor_a</p>

<p><h3>Sensor:</p></h3>
<p>MODIS Aqua</p>
<p>Mapped worldwide monthly Modis Aqua 4km chlorophyll (a) concentration was used to develop this product. Data values are averaged over the collection period to create monthly averages</p>

<p><h3>Code:</p></h3>
<p>for %A in ("C:\temp \*.nc") do gdal_translate -of GTiff -a_nodata -32767 -sds -a_ullr -180 -90 180 90 -ot FLOAT32 -co COMPRESS=PACKBITS "%A" "%A.tif</p>

<p><h3>Data Development/Processing:</p></h3>
<p>Converted TIFF data was validated against the parent NetCDF file for correct cell size and pixel value.</p>
<p>Output TIFFs were flipped. This was remedied via batch flipping in ArcGIS (Flip tool).</p>
<p>The GCS was batch defined in ArcGIS as SR-ORG:14.</p>
<p>Processed data was then batch clipped to Lake Victoria and the surrounding lakes and statistics were calculated.</p>