Thursday, June 23, 2016

Environmental Update: Week 4-5

This week has been very informative and useful, but it has also had some unfortunate challenges that have made the work progress more slowly than I would have liked. Despite these challenges, there are some good results to post:

First, there is a new version of the project proposal that I drafted. While this is an updated version, it continues to change as the project evolves, and so I posted a live link that updates automatically. You can access that here: . This will give a detailed description of the methods being used by our team in creating the final research.

I also mapped the Cropland data, and downloaded resources to link pesticide and fertilizer use to the crops produced. This was in PDF form, so it had to be copied into excel, from where it can be joined to a map in ArcGis. I attempted to extract out the croplands within each watershed, but ArcGIS continued to have issues in processing, either incorrectly projecting or not outputting a table. Neither reprojecting the data nor building a new attribute table seemed to work, and none of the many different strategies I tried seemed to make any difference, so I got around this limitation by first changing the cropland to a vector polygon (previously it was a raster) and then clipping the data to the watershed layer boundaries. Later on I will spatially join these together with demographic data.

Pictures for all of this will be forthcoming soon.

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