LA County GIS has published its GIS data catalog in a nice table format to make it easier to find the data you are looking for. Check out the post about it here.
LA County GIS Data Catalog
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Category Archives: Maps/Apps/Charts/Data
ASPRS Aerial Data Catalog
The American Society of Photogrammetry and Remote Sensing (ASPRS) has a new tool and is provided as a free service to the communities that utilize aerial photography. The tool is called the ASPRS Aerial Data Catalog and is a means to locate aerial photography from private companies, universities, states, NGOs, and federal sources. The catalog contains metadata allowing users to determine if coverage exists over an area of interest. The acquisition date, film type, sensor type, and scale are also provided along with the supplier contact information. Continue reading
Zika Virus Map
Check out this interactive Zika Virus Outbreak map and timeline. You can map other outbreaks as well from their main page at Healthmap.org.
NextGen Brings More Aircraft Noise to SoCal
The Next-Generation Air Transportation System (NextGen) will most likely bring more aircraft noise to Southern California. Residents of Mar Vista, Culver City, Santa Monica, and Pacific Palisades already are noticing jets flying in and out at lower altitudes and more often. This is because the NextGen system uses satellites instead of air traffic controllers for precision separation of aircraft, allowing them to fly at lower altitudes and much closer together for landings and departures. Continue reading
The Killer Hiding in the CDC Map
I found this article about what caused Haiti’s cholera epidemic VERY interesting. The tie in with the CDC map is chilling. Click below to read.
New California NAIP 2014 DOQQ
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/
Improper Classifications and Color Ramps
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.
David Rumsey Map Center Opening
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
Diverging Color Ramp Addin
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
OpenStreetMap Mapathon
Hi SoCalGIS group,
We’re reaching out to you and your organization about an upcoming mapathon Saturday April 2nd (http://meetu.ps/2Wjm0m) at the LA Times in downtown LA to get people together to edit OpenStreetMap and import all the buildings in the City of Los Angeles!
This is part of a larger effort to import all 3 million buildings in Los Angeles County using open data from the LARIAC (Los Angeles Region Imagery Acquisition Consortium) Program and the L.A. County Assessor. The import will improve Southern California’s maps by adding building shapes and data on heights, elevation, general use, year built, and the number of residential units. Continue reading
