Latest Contributions by RicardoBarros_Lourenco

I'm interested on calculating NDVI from Landsat images stored on Amazon S3. I've recently accessed a website from ESRI that is calculating NDVI, even with a time series of it (Unlock Earth's Secrets | Esri Landsat ). Do you know how this data is being processed? Does it uses hadoop to do so? Cheers, Ricardo ... View more

Good approach Sarah! Any news on raster processing? Cheers, Ricardo ... View more

Hi Jeremy! Well, I've been working with a dataset of 2.5 million records (2014 Divvy Data) on ArcGIS Desktop, and it was consuming a little time to render. Considering that your load is 5x greater on a daily basis, you need to work with a storage. However, for loading and processing this data, you should do any form of data reduction... Depending on your use, it could be done on a way that doesn't compromise much of your results. For my case, I've done summarization before loading on arcgis desktop. You could do it by time, and once a certain period is elapsed discard some data... Or use all, summing all, and then apply a normalization for visualization... ... View more