Remote sensing and social sensing for flood mapping

A system, comprising:

• a processor;
• and
• a memory, including instructions that when executed by the processor perform operations comprising:
• identifying where floodwater is present in a current image of a location affected by a flooding event, wherein identifying where floodwater is present in the current image of the location affected by the flooding event comprises:
• generating a permanent water mask identifying where permanent water is located at the location;
• and
• applying the permanent water mask to the current image to generate a differentiated image that separately indicates the floodwater from permanent water for the location;
• identifying a social media post posted on a social media platform from the location and associated with the flooding event;
• and
• overlaying the differentiated image over the social media post, wherein the social media post includes a photograph of the location, wherein overlaying the differentiated image over the social media post includes positioning the photograph for display with the differentiated image where a subject of the photograph is located at the location.

A memory including instructions that when executed by a processor perform operations comprising:

• identifying where floodwater is present in a current image of a location affected by a flooding event, wherein identifying where floodwater is present in the current image of the location affected by the flooding event comprises:
• generating a permanent water mask identifying where permanent water is located at the location;
• and
• applying the permanent water mask to the current image to generate a differentiated image that separately indicates the floodwater from permanent water for the location;
• identifying a social media post posted on a social media platform from the location and associated with the flooding event;
• and
• overlaying the differentiated image over the social media post, wherein the social media post includes a photograph of the location, wherein overlaying the differentiated image over the social media post includes positioning the photograph for display with the differentiated image where a subject of the photograph is located at the location.