I am currently working with a shapefile from the United States Drought Monitor that countains all drought data from all of the states in the US. I am converting it to geojson with ogr2ogr and would like to filter the geojson output so that it only contains data within the bounds of California. How can I do this?
I am wondering if there are optional arguments I can pass in to something like
ogr2ogr -f GeoJSON drought.json USDM_20140617.shp
Or would I only be able to limit the results by doing a join between shapefiles (for example, a join with a shapefile that contained data for California's boundaries)?
Shapefiles are here