Strong winds caused substantial water surface elevation differences in Lake Erie around November 15, 2020.  Here's an animated plot of elevations measured by NOAA.  Plot was developed using R and Windows Live Movie Maker [Read more...]

 Strong winds caused substantial water surface elevation differences in Lake Erie around November 15, 2020.  Here's an animated plot of elevations measured by NOAA.  Plot was developed using R and Windows Live Movie Maker [Read more...]

Revisiting the river flow profile plot from an earlier post, the video below loops each day's flow profile for the Delaware River in 2019.  Data is from USGS gages processed using R and Windows Live Movie Maker. [Read more...]

My prior post on animated flow in the Delaware River contained the last work I performed on my previous lap top just before it gave up the ghost.  When a colleague asked me to share it, I was distressed to realize that the script was lost.  I decided to recreate ... [Read more...]

My prior post on animated flow in the Delaware River contained the last work I performed on my previous lap top just before it gave up the ghost.  When a colleague asked me to share it, I was distressed to realize that the script was lost.  I decided to recreate ... [Read more...]

The Delaware River Basin Commission's Delaware Estuary water quality monitoring program, which was initiated in 1967, is one of the longest running monitoring programs in the world.  One advantage of such a long data set is that we can see the cha... [Read more...]

Back in August 2011, Hurricane Irene struck the mid-Atlantic coast.  This animated graph shows how the storm surge from Irene and the terrestrial flooding from Irene and Tropical Storm Lee (a few days later) impacted water surface elevations in the Delaware Estuary.This post is the third in a series revisiting ... [Read more...]

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Continuing on the theme of updating older visualizations into newer formats, below is a clip of the impact of Superstorm Sandy on Delaware Estuary water surface elevations.  The original MS Excel and screen capture version is posted here.  The new version developed in R with the animation package is cleaner ... [Read more...]

Animations of continuous data in GIF format offer some portability advantages over video files.  A few years ago, shortly after Superstorm Sandy, a colleague and I developed a video of animated water surface elevations from USGS gages in Barnegat Bay, NJ as the eye of the storm approached.  That version ... [Read more...]

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High winds in the Delaware Estuary region caused a "blowout" tide in early April 2016, where observed water surface elevations were much lower than those predicted via harmonic constituents.  Extreme low blowout tides can hamper navigation due ins... [Read more...]

High winds in the Delaware Estuary region caused a "blowout" tide in early April 2016, where observed water surface elevations were much lower than those predicted via harmonic constituents.  Extreme low blowout tides can hamper navigation due insufficient depth.This animated graph was created in R using data obtained from the ... [Read more...]