An Animated Map of the Bangladesh Delta (VIDEO) National Oceanography Centre, UK This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption The colors represent salinity, with blue being fresher, and yellow colors are saltier water. As you watch this movie, you will see the salty yellow patch oscillate in and out, with the movement of the tide (on a 12.5 hour cycle). There is also a slower change in the position of the salt and fresh-waters, controlled by the monsoon (on an annual cycle). Credit The National Oceanography Centre Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.