Monthly Archives: April 2021

US High Tide Flooding Probability

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High tide flooding today mostly affects low-lying and exposed assets or infrastructure, such as roads, harbors, beaches, public storm-, waste- and fresh-water systems and private and commercial properties. High tide flooding is likely more disruptive (a nuisance) than damaging. The cumulative effects, however, are becoming a serious problem in several coastal locations.

See where high tide flooding is probable over the next 80 years and how many flood days are expected annually with the High Tide Flooding app using NOAA study data.

The Mythology of Snow’s Map of Cholera

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Most of you that took Geography, Cartography, or GIS courses remember reading about the story of Dr. John Snow and his map showing the cholera outbreak in Soho, London in 1854.

You also probably remember how he plotted cholera cases on the map and how he used that information to figure out that there was a strong spatial relationship between the cases and a polluted well on Broad Street, so he had the pump removed and the outbreak stopped. The map has been used as an example of the principles of GIS using layers of information and spatial relationships.

Well … despite it being a great story, unfortunately it’s not really how it played out. Both the use of the famous map and the story surrounding it have become somewhat modified through the passage of time. Click below to read the mythology of Snow’s cholera map.

Senior GIS Analyst Position

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The City of Pasadena is currently seeking a Senior GIS Analyst to assist in the design, development, analysis, implementation, and maintenance of the city’s Geographic Information System. Under general supervision, the Senior GIS Analyst performs professional duties in support of City and departmental GIS databases and geographic information systems capabilities.

The ideal candidate for this position will have knowledge and/or experience in the following: 

  • ArcGIS 10.6 or higher including ArcGIS Enterprise and desktop extensions.
  • Network data model related to utilities (gas, water, electric, etc.); Utility Engineering principles & processes, Water Distribution systems, Electric Distribution systems; and ArcFM software.
  • Adept with scripting and programming language
  • Web technology and configuration of IIS for GIS deployment.

This full-time position is in the Pasadena Water & Power Department. Annual salary range from $88,684 to $110,854. Click here for more info and to apply.

Hands-On Mapping: The Story of a Blind Cartographer

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The talk will take place Friday, April 23, 2021 on Zoom.

On the event of the fifth anniversary of the David Rumsey Map Center at Stanford University, please join us for an online talk by special guest Dr. Joshua Miele who will talk about his story as a blind cartographer.

Joshua will use the creation of TMAP – Tactile Maps Automated Production – to frame the broader landscape of how tactile maps and graphics can be used by blind people to understand many kinds of spatial information. He will discuss the power of touch as a spatial percept, as well as the design constraints on tactile representations that are surprising and challenging to most visual designers. Key topics include historical techniques for creating tactile maps, examples and counterexamples of tactile map use cases, and promising technologies for expanding the availability of accessible maps in the future.

Please register here: https://events.stanford.edu/events/908/90805/

ArcGIS Earth New Release

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There is a new release of ArcGIS Earth. This is a major release for ArcGIS Earth on desktop, bringing users more capabilities for sharing data as well as configuration settings–from mobile, to desktop, to the organization portal. Mobile users will also get a new release of the ArcGIS Earth app later this month. Click below to read more.

You can download ArcGIS Earth here.

2021 NGS Geospatial Summit

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Registration is open for the next National Geodetic Survey (NGS) Geospatial Summit, taking place online on May 4-5, 2021, from 1:00 – 5:00 pm, ET. NGS strongly encourages attendees to participate on both days.

The NGS plans to replace the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88) as part of modernizing the National Spatial Reference System (NSRS).

Attend this year’s Geospatial Summit to: 

  • Learn the benefits of NSRS modernization, 
  • Hear about NSRS modernization progress, 
  • Prepare for how the transition will affect you, 
  • Ask questions of NGS experts, and 
  • Share your feedback about the planned changes.

The summit is free for everyone to attend. Click below for more info and to register.