The 1 meter 4-band 2014 California National Agriculture Imaging Program (NAIP) images are ready for you to access via an image service. Here is the rest endpoint:
http://gis.apfo.usda.gov/arcgis/rest/services/NAIP/California_2014_1m/ImageServer
There are image services for other states too. Just go up a level:
http://gis.apfo.usda.gov/arcgis/rest/services/NAIP
You can also download image tiles from the National Map application:
High-quality hydrographic data are critical to a broad range of government and private applications. Resource management, infrastructure planning, environmental monitoring, fisheries management, and disaster mitigation all depend on up-to-date, accurate, and high-quality hydrographic data.
The U.S. Geological Survey National Geospatial Program is initiating a new series of virtual seminars to highlight the uses of hydrographic data. These seminars are intended to share success stories from users who have solved real world problems using hydrographic data, provide information about the National Hydrography Dataset and related products, and provide a virtual forum for users, similar to what might be encountered in a conference setting.
The first seminar will be held on April 9 at 2:00 PM ET. The topic will be the response to the January 2014 Elk River chemical spill in West Virginia, specifically the use of the NHDPlus, real-time stream flow and velocity information from stream gages and models, and the Incident Command Tool for Drinking Water Protection application to limit effects of the spill on communities downstream.
These seminars will be presented every 6 to 8 weeks, featuring applications and speakers from different disciplines. Connections are limited and pre-registration is required.
Hydro Seminar 1 – Incident Command Tool for Water
Guest speaker – Dr. William Samuels, Leidos
Thursday, April 9, 2015 – 2:00 PM Eastern Daylight Time
Register here.
After your request has been approved, you’ll receive instructions for joining the meeting. In case the meeting is full, you will receive information on an alternate date. For more information see: http://nhd.usgs.gov/HydrographySeminarSeries.html.
Go to Google Maps, zoom to a location, and you will see the Pac-Man icon displayed in the lower left. Click on it to play Pac-Man using the streets!
Check out this map showing the autocomplete predictions of a “cost search” for each state’s capital. The search phase was “how much does a * cost in …”. Some of the autocomplete predictions were rather … well, you will see!
Back in 1913, the National Highway Association drew up the first proposed highway plan. Their campaign stressed that good roads lead to things like good schools, good health, good morals, good times, etc. Check out the article and maps leading up to the nation’s first nationwide system of numbered highways adopted in November 1926.
Check out this story about how a previously unknown map collection of a hospital dietician ended up doubling the size of the Los Angeles Public Library’s map archives in one single day!
This interesting and interactive map comes from the New York Times. A lot of information is displayed showing migration information by state. Very good use of colors and symbols to show multi layered migration data. Select a year, then hover over the different areas of the state to get more info. Check it out.
Curious on how to make a wind map? Or maybe just a map of magnitude and direction of flow? I found this post that steps you through the process using ArcGIS Desktop.
Interested in map history? Doing a research projected in map history or cartography? You might want to check out The International Directory of Researchers in Map History.
The purpose of the directory is to promote communication among researchers who study the history of maps and to provide information about the field to the public. The directory is an open source for contact information, current interests, research projects, and publications related to map history. Check it out.
ESRI has updated ArcGIS Online for March. One of the big ones is what they call Smart Mapping which include new ways to symbolize data, “smart” defaults, and data-driven workflows. Check it out.
SoCalGIS.org 