Blog Archives

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COVID-19 Update: 3/21/20

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The US and Spain’s COVID-19 confirmed cases since the 100th case are now higher than Italy was on the same day since their 100th case.

South Korea has bent their curve while Italy has not. The US and Spain seem to be following Italy’s trajectory, not South Korea’s trajectory.

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Philadelphia’s Flooding Challenge

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Looking at Texas Flood with LandSat

Houston, Texas area has seen major rainfall and flooding.  This gif animation shows LandSat images of the Brazos River on May 4, 2013 and May 28, 2016 after the recent Texas storms.  (NASA link)

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Brazos River: normal and May 28, 2016 flood

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How I Determined That PWD Outfalls Are Major TTF Creek Trash Source

One year investigation  in one chart….
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You can find complete documentation on my learning curve here.

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Tacony Creek Flow – June, 2013

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USGS graph: Tacony Creek above Adams Ave.

Here’s the USGS gauging station hydrograph for Tacony Creek just above Adams Ave that shows the impact of the 6/7-8 rainstorm. A total of 3.82 inches of rain was recorded at Philadelphia International Airport.

(Click image to see most recent 7 days)
USGS.01467086.01.00060..20130601.20130608.log.0.p50.pres

To see most recent 7 days, click this link: USGS graph.