Are the areas at risk of heavy rainfall densely populated?

This map shows human population density.

Although this map does not include any rainfall information, it may be useful for assessing if areas at risk of heavy rainfall are densely populated.

How to use this interactive map

Switch to another map: Select the dropdown menu at the top of the page, to the right of the blue “Forecasts in Context” heading.

Return to the menu page: Click the blue link called “Forecasts in Context” at the top left corner of the page.

Zoom in to a region:
Method 1: Pick a region from the list:

1. Select the dropdown menu at the top of the page, titled “Region”
2. Click on the region of interest, and the map will automatically refresh.

Method 2: Click-and-drag:

1. Click the left mouse button at the upper-left corner of the region to which you would like to zoom.
2. While holding down the button, drag the mouse to the lower-right corner of the region to which you would like to zoom.
3. Release the left mouse button. The map will redraw automatically.

Zoom out to the global map:

1. Move your mouse over the map, until you see three icons appear in the upper left corner.
2. Click the icon of the magnifying glass.
3. The map will redraw automatically. Note that the map cannot display areas outside of the latitudes initially shown on the interface (about 66.25S – 76.25N).

Dataset Documentation

CIESIN/SEDAC GPWv3 Year 2005 Projected U.N.-Adjusted Population Counts
Data Number of persons per 2.5 arc-minute grid box, projected for the year 2005, based upon national statistical office estimates of population and adjusted according to U.N. national population estimates, from the CIESIN Gridded Population of the World, Version 3 (GPWv3) data set
Data Source Center for International Earth Science Information Network (CIESIN), Socio-Economic Data Center (SEDAC), Gridded Population of the World, Version 3

Helpdesks

Contact ifrc@iri.columbia.edu if you are a humanitarian-decision maker with questions about information in this Map Room, or other weather and climate related questions. We usually respond within one business day.

Contact help@iri.columbia.edu with any technical questions or problems with this Map Room, for example, the forecasts not displaying or updating properly.