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Pier

Data analysis platform for CogniCity

Install

$ cd pier
$ npm install
$ npm link

Dependencies

  • Node >= v4.4.5
  • NPM >= 3.10.5
  • Local copy of cognicity-rem Postgres database

Commands

get-floodstate

$ pier get-floodstate 2016-03-09
Description

Get historical extents of flooding from the Risk Evaluation Matrix database as geojson.

Parameters
  • Day must be specified as a ISO 8601 date [YYYY-MM-DD]

Options

  • -e --explode Explode time series into multiple attributes
  • -s --suppress Suppress areas where floods have receded (recommended)
Output
  • geojson feature collection representing polygons of all districts which experienced flooding on the specified day
  • data is written to stdout
  • Flood state is downsampled to hourly interval
  • Polygon attribute flood_state lists flood heights for each hour over the 24 hour period
  • Data specification: https://petajakarta.org/banjir/en/data/v2/#flooded