2. 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 older data visualizations using R.  Water surface elevation data is from the NOAA-PORTS system and non-tidal flow at the Delaware River at Trenton and the Schuylkill River at Philadelphia is from USGS NWIS.  You can see similar visualizations of the impact of Superstorm Sandy in the Delaware Estuary and Barnegat Bay.  You can also check out the older version of this same visualization.

    You can see the full length version of the entire event on YouTube.

    In this case, animated graphing efficiently conveys a dense data set from multiple collection platforms in a way that is intuitive and understandable.  The animation is a GIF file which will display automatically in MS PowerPoint in slide show mode.

    E-mail me at JYagecic@gmail.com for the full length GIF and the script from the Superstorm Sandy project (same script as this project).
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    Labels: animated Delaware River estuary flow graph Hurricane Irene R tidal tide
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  3. Here's an app that illustrates how fertility and death rates impact the US age structure diagram over time.  The app uses a simple population model to forecast the US age structure in 100 years, starting from 2010 census data and user-selected fertility and death rates.

    You can find and play with the app at https://johnyagecic.shinyapps.io/AgeStructureShiny/

    E-mail JYagecic@gmail.com for the R code.
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    Labels: graph model population R Shiny
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  4. 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 and more portable.

    The graph shows measured and predicted water surface elevations provided by the NOAA PORTS system for the Delaware River and Bay.  The shape of the Delaware Estuary amplifies the tidal signal at the mouth of the estuary resulting in a wider tidal range at the upper end of the estuary, which is also the more urbanized densely populated end.  Storm surges are a particular concern since the potential exists for the surge to be amplified within the estuary.

    The graph shows that the measured water surface elevations initially closely match those predicted by harmonic constituents (based on lunar and other cycles), but as the storm approaches the impact of the surge results in greater differences between the predicated and observed water levels.

    E-mail me at JYagecic@gmail.com for the full length GIF or more details about construction of the animated graph.
    Posted by
    Labels: animated animation Delaware River estuary graph Hurricane R Sandy Superstorm tidal tide
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  6. 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 used video screen capture and MS Excel VBA - you can see it here.



    With the pending 5 year anniversary of Sandy and the R animation package, the time was right to revisit the animation as a GIF.

    See the full length video version on YouTube.

    Sources of data include:
    USGS 01409335 Little Egg Inlet near Tuckerton, NJ
    USGS 01409146 East Thorofare at Ship Bottom, NJ
    USGS 01409110 Barnegat Bay at Waretown, NJ
    USGS 01408205 Barnegat Bay at Route 37 bridge near Bay Shore NJ
    USGS 01408168 Barnegat Bay at Mantoloking , NJ
    USGS 01408043 Point Pleasant Canal at Point Pleasant NJ
    USGS 01408050 Manasquan River at Point Pleasant NJ
    NOAA National Data Buoy Center Station 44009 (LLNR 168) - DELAWARE BAY 26 NM Southeast of Cape May, NJ

    E-mail me for the full length GIF or video at JYagecic@gmail.com
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    Labels: animated animation Barnegat flow graph Hurricane R Sandy Superstorm tidal tide
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  7. The Delaware River Basin Commission (DRBC) just released a new app for visualizing water quality in the Delaware River Basin.  The DRBC Special Protection Waters Monitoring Program Explorer is a Shiny app that allows users to generate a boxplot and summary table of selected water quality data. The boxplot and summary table are updated each time the user selects monitoring parameter, range of years, and site type. In addition, users can display outliers (or not) and switch to logarithmic scale. The app includes links to project information and definitions.

    You can view the app here (https://elainepanuccio.shinyapps.io/specialprotectionwatersexplorer/)


    DRBC’s Special Protection Waters (SPW) program, adopted in 1992 and expanded in 2008, prevents degradation of the Delaware River and its non-tidal tributaries where existing water quality is better than water quality standards. SPW applies from Hancock, NY to Trenton, NJ. DRBC partners with the National Park Service for monitoring and assessment. Click (http://www.nj.gov/drbc/programs/quality/spw.html) to learn more about SPW.

    Many thanks and to my colleague Elaine.Panuccio@drbc.nj.gov for sharing.
    Posted by
    Labels: ammonia Delaware River nitrogen phosphorus R Shiny water quality
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I am an engineer working in water resources and the environmental field. On the side, I work with small businesses to help automate their data processing functions. I offer reasonable rates and am very efficient. Send me an e-mail at JYagecic@gmail.com
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