The NAIP 2014 DOQQ TIFF-format 4-band images for California were recently added to the old Cal Atlas download site. The images, index files, and metadata are available from the following link:
http://www.atlas.ca.gov/download.html#/casil/imageryBaseMapsLandCover/imagery/naip/
Check out this article about how one can mislead map readers when you use improper classifications of data and poor color ramps.
Thanks goes to Barry from the City of Carson for finding this article.
Learn what spatial analysis can do for you with a free online course from ESRI. The course is for people who know something about spatial analysis and want to learn what ArcGIS Online has to offer. You will get free access to the full analytical capabilities of ArcGIS Online during the course:
Looking for free basic Python training? Check out these free webinars:
Looking for a free Python book? Check this one out!
We currently have a business need to get at parcel center points using parcel numbers. If some of our business systems can communicate using HTTP, I thought using the ArcGIS Server REST API with our map service would be ideal. But first I needed to figure out how to do it. What better way to test the concept by building a Python script! Continue reading
There is a very nice Python library that you can use to parse and standardize your addresses for geocoding. Use it to clean up your messy address data.
For more info and to download, visit https://github.com/datamade/usaddress.
To try it out live, visit https://parserator.datamade.us/usaddress.
For Python Nerds: The library utilizes a probabilistic, rather than rule-based approach to parse the data. This means you can customize and build the library with your own training data if need be.
If you find yourself near Stanford University on April 19th to 22nd, you should drop by the grand opening of the David Rumsey Map Center. Continue reading
On 1 April 1977 the Guardian produced a 7 page travel supplement on the tiny tropical republic of San Serriffe, “a small archipelago, its main islands grouped roughly in the shape of a semicolon, in the Indian Ocean”, which was apparently celebrating ten years of independence. The article included a map of the island republic. Continue reading
Looking for funding for your GIS implementations? Check out these funding opportunities for GIS in Transportation, Water Resources, Pollution, Energy, Environment, Fish, Wildlife, Forestry, and Infrastructure.
Using ArcGIS 10.4 and looking for a diverging color ramp for your map features? Try the Diverging Color Ramp Addin.
This addin enables you to intelligently apply a dichromatic color ramp to feature layers containing points, lines, or polygons in ArcMap 10.4. Continue reading
SoCalGIS.org 