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About socalgovgis - Michael Carson

Michael Carson, GIS Manager (retired) for the City of Burbank and President of Southern California Government GIS User Group. Currently teaching GIS at College of the Canyons in Santa Clarita.

Neglected Dam Map

Thousands of people in the U.S. may be at risk from dams that are rated in poor or unsatisfactory condition.  An Associated Press investigation has identified at least 1,680 dams in 44 states and the U.S. territory of Puerto Rico that are considered to be high hazard and in poor or unsatisfactory condition.  A dam is listed as high hazard if its failure is likely to result in people being killed.  The dams and their date of last inspection have been plotted on an interactive map.  Looks like there is only 1 in California.

neglecteddams

US Flood Risk Map

A new online flood risk map has been released by the nonprofit organization First Street Foundation.  The online tool can tell you the current flood risk for your home and possible future risks.

The flood model used by Flood Factor is based on models of flood risk from rainfall, overflowing rivers high tides, and coastal storm surge.  It takes into account such as factors as flooding history, elevation and proximity to water.  To predict future risk of flooding other factors are also taken into account, such as different climate models and predicted sea level rise and predicted future precipitation patterns in the local area.  Check it out!

floodrisk

NOAA Height Modernization Program

Last year I wrote about how our datums are changing.  NOAA is working on recalibrating the nation’s elevation data as part of its update to the National Spatial Reference System, expected in 2022/23.  The height modernization program corrects local elevation data which has not been updated since 1988.  GPS and gravity mapping are being used to update elevation.  Continue reading

EarthSky Stargazing

EarthSky’s interactive map will help you find the perfect spot to celebrate the summer nights as you look skyword.  This resource tracks publicly accessible stargazing spots around the world.  The site gathers an impressive array of locations.  Visitors will find a world map with pins marking spots of interest.  Click on a pin to reveal an address, directions, and a brief description.  Do you have a favorite spot of your own that you want to share?  The “Recommend a Place” button brings you to a submission form.  Check it out!

earthsky

Join URISA

GIS professionals are invited to take URISA on a test drive for the ‘better’ half of 2020.

Because membership dues are pro-rated according to the date of purchase, you can join now through June 30 at half-price and take advantage of member benefits for the rest of the year.

Consider individual or organization membership:

Take advantage of free and discounted education and training; professional development opportunities; and a welcoming community.

Check it out today: https://www.urisa.org/membership

Python Scripting for ArcGIS Pro

ESRI Press is releasing two a new books in July, titled Python Scripting for ArcGIS Pro and Advanced Python Scripting for ArcGIS Pro.

pythonscriptingl Python Series Ideas

Like the book before them written for ArcGIS Desktop (Python Scripting for ArcGIS), these books guide you through similar exercises using ArcGIS Pro.

The Python Scripting book guides you through using Python, step by step, and will teach you how to write scripts that work with spatial data in ArcGIS Pro.  You will learn to automate geoprocessing workflows, increasing efficiency and saving time.  Things you will learn include:

  • Set up a Python editor.
  • Automate geoprocessing tasks.
  • Explore and manipulate spatial and tabular data.
  • Work with geometries using cursors.
  • Work with rasters and map algebra.
  • Automate mapping tasks.
  • Handle debugging and errors.

After mastering what you learned in the Python Scripting book, you can take your scripting skills to the next level with the Advanced Python Scripting book.  This book teaches you how to work with Python toolboxes, create and share script tools, manage Python packages and environments, work with Jupyter Notebook, use ArcPy and ArcGIS API for Python, and much more.

Python Scripting for ArcGIS Pro comes in both print and e-book versions, 420 pages, $79.99 retail and about $52 on Amazon for pre-ordersAdvanced Python Scripting for ArcGIS Pro also comes in both print and e-book versions, 290 pages, $69.99 retail and the same on Amazon right now.