It is sub basin photo which I want to upload to CHRS so that I can to download satellite precipitation data (https://i.stack.imgur.com/EQt3v.jpg)

closed as unclear what you're asking by Vince, user30184, PolyGeo Dec 8 '18 at 19:29

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    Welcome on GIS SE. Please edit and clarify your question to describe your issue, what you have tried and where you are stuck at, as precisely as possible. Also take a look at our short Tour. – MrXsquared Dec 8 '18 at 17:08
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    Unfortunately, this question doesn't make much sense. Shapefile is a vector format (which requires a .dbf, which you didn't mention), not a raster format, which is what a photo or precipitation data would use. 8mb is tiny, even for a vector dataset, so it's unclear what your goal is. – Vince Dec 8 '18 at 17:19
  • I added a link to CHRS, not sure if it's the right link though. Please provide a link to the page you will be using to download the data. – Kirk Kuykendall Dec 8 '18 at 17:59

I assume you need to upload a shapefile to define the extents of data you're downloading.

If you want to make the shapefile smaller, let's look at the three parts basic shapefile parts and how you can make each smaller:

.shp: This stores the geometry of the shape. To make this file smaller, store less geometry objects. You could do this by deleting detail you do not need. This could mean deleting interior boundaries (islands/holes) when you only need the outside boundary. You could also reduce the number of vertices by generalizing the shape.

.shx: This file describes where the geometries in the shp file start and stop. This usually isn't a big file so there's not much you can do to change its size.

.dbf: This stores the data attribute table. If you only need your shapefile for its geometry and don't need the attribute data, you can delete columns from this file.

There are other files that optional to shapefiles like .sbn and .sbx. They are not needed for the shapefile to work so they can be excluded from the uploaded files. You only need the three above.

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