CGIA has posted that there are two new NASA ARSET training webinars that you can attend if you are interested. One is “New Sensor Highlight: ECOSTRESS” and the other is “SAR for Disasters and Hydrological Applications”. Visit the CGIA website for more information about these webinars.
Just a reminder that the ESRI Ocean and Atmospheric GIS Forum will be starting tomorrow.
In February and March 2020, you can enjoy the CalGIS conference, Geodesign Summit, and ESRI Developer Summit. Check out all conferences from the GIS/Mapping Conferences page.
This 1625 map by British mathematician Henry Briggs initiated one of the most famous of all cartographic misconceptions, California as an island, which persisted until the end of the 17th century. This idea is thought to have originated with the Carmelite friar, Antonio de la Ascension who accompanied Sebastian Vizcaino on his West Coast expedition of 1602-03, and wrote an account of the trip. About 1620, it is believed that Father Ascension drew a map depicting California as an island and dispatched it by ship to Spain. The ship was captured by the Dutch and the chart taken to Amsterdam.
In 1622, California appeared as an island on two title page vignettes published in Amsterdam by Michiel Colijon: Jacob le Maire’s Spieghel Der Australische Navigatie and Antonio de Herrera’s Descriptio Indw Occidentalis. That same year in London, Henry Briggs published an article entitled “A treatise of the Northwest Passage to the South Sea, through the Continent of Virginia, and by Fretum Hudson.” Briggs claimed to have seen a map in London brought from Holland showing California as an island. His article was republished slightly modified in 1625 in Purchas’ Pilgrimes, and was accompanied by this map supposedly drawn from the one “taken by Hollanders.” A similar map engraved by Abraham Goos was inserted into a small book published in 1624 in Amsterdam. Although dated earlier, it is likely that this map used the Briggs map as a source.
Briggs’ map quickly became a model for others. John Speed copied it in 1626-7 as did Joannes Jansson in 1638, and soon nearly all European cartographers depicted California as an island. One purpose of the map was to suggest the probability of a short passage from Hudson Bay to the Pacific Ocean, which was enhanced cartographically by the absence of a northern coast and land to the west, which were common features of maps up to that time.
A Jesuit friar, Eusebio Kino, was the first to offer proof against the island theory using the map he compiled in 1701, which was printed in 1705 in Paris. Kino’s map was not readily accepted and it eventually required a royal decree by Ferdinand VII of Spain in 1747 to state that “California is not an Island.”
(text from CaliforniaMapSociety.org)
Looks like a brush fire erupted in Simi Valley. Check out this interactive map from the Ventura County Emergency Operations Center to see mandatory/voluntary evacuation areas as well as power shutoff areas.
GOES-West Satellite image as of 10am:
Hema Maps. California, Nevada road guide. 1 map, scale 1:1,000,000. Hallwag, pub. 2019. ISBN: 9783828307568
Michelin North America. Streetwise California: state road map of California. 1 map, scale 1: 2,400,000. Greenville, S.C.: Michein Travel, pub. 2019. ISBN: 9782067238824
National Geographic Maps. Desolation and Granite Chief Wilderness Areas. 1 map, scale 1:40,000. Evergreen, Colo.: National Geographic Partners, Trails Illustrated topographic map 802, pub. 2018. ISBN: 9781566957731
National Geographic Maps. Tahoe Rim Trail. 1 map, scale 1:63,360. Evergreen, Colo.: National Geographic Partners, Trails Illustrated topographic map 1013, pub. 2018. ISBN: 9781566957496
U.S. Bureau of Land Management. Alabama Hills recreational and scenic area, map and guide. 1 map, scale ca. 1:10,480. Bishop, Calif.: Bureau of Land Management, Bishop Filed Office, pub. 2018. Link.
U.S. Bureau of Land Management. BLM routes of travel for western Imperial County, California. 1 map, scale 1:135,000. El Centro, Calif.: Bureau of Land Management, El Centro Field Office, pub. 2019. Link. Link.
U.S. Forest Service. Plumas National Forest, California. 1 map, scale 1:126,720. Vallejo, Calif.: U.S. Forest Service, pub. 2019. ISBN: 9781628114348
U.S. Forest Service. Sequoia National Forest atlas, including Giant Sequoia National Monument: 7 1/2ʹ quadrangle topographic maps. 1 atlas (60 p.), scale 1:63,360. Washington, D.C.?: U.S. Forest Service, pub. 2019. ISBN: 9781628114331
U.S. Forest Service. Shasta-Trinity National Forest atlas: 71/2′ quadrangle topographic maps. 1 atlas (119 map sheets), scale 1:63,360. Vallejo, Calif.: U.S. Forest Service, pub. 2019. ISBN: 9781628114355
Zanger Christopher. Mount Shasta Wilderness. 1 map, scale 1:38,000. Birmingham, AL: Wilderness Press, 4th edition, pub. 2017. Link.
Check out this interactive map that shows the perimeters of wildfires that have burned in California from 1878 to 2018 using data from the California Department of Forestry and Fire Protection and the U.S. Geological Survey. The wildfires are categorized by the year in which they started. Perimeter information from fires that started between 1878 and 2017 comes from Cal Fire, while information on the Thomas Fire and fires that started in 2018 comes from the USGS.
Update 2/20/2020: ArcGIS 10.8 has been released. View the post here.
Looks like ESRI pre-released ArcGIS 10.8. Logging into my.esri.com shows what is available for download:
ArcGIS 10.8 Prerelease:
The ArcGIS Desktop and ArcGIS Engine 10.8 setup packages are designed to detect and upgrade an existing installation of the same ArcGIS product. The settings for the installation location, license manager (for concurrent use), or authorization information (for single use) are retained during the upgrade.
ArcGIS Enterprise 10.8 upgrades are not supported at 10.8 prerelease. To see the new capabilities of ArcGIS Enterprise 10.8 prerelease, it is required to do a new installation. Upgrades from previous versions to the 10.8 prerelease are not supported. Upgrades from the prerelease version to the final released version are not supported. The final release of 10.8 will support upgrades from previous software releases as usual.
The following products are not included with ArcGIS 10.8 prerelease and will be available with the final release of ArcGIS 10.8:
ArcGIS 10.8 Single Use Licenses:
If ArcGIS 10.8 will be installed on a machine that is different from where a previous ArcGIS 10.x product is currently installed, and you wish to use the existing ArcGIS 10.1–10.7.1 authorization number for ArcGIS 10.8, the earlier version of an ArcGIS 10.x product must first be deauthorized before authorizing ArcGIS 10.8.
ArcGIS 10.8 Concurrent Use Licenses:
If you are like me, I get confused on how many ArcGIS Online credits are used for certain transactions. For example, if I want to generate a tile cache, that would be 1 credit per 10,000 tiles generated.
Check out this Credits by Capability table to see how many credits you would consume per transaction.
With all the fires that are going on right now, this interesting interactive map by UCLA shows all buildings in California classified by what Cal Fire Fire Hazard Severity Zone they fall in. Click below and check it out!
Thanks goes to Barry Waite for finding this one!
You can also check out the Cal Fire Fire Incident Map here.
ESRI will be holding an Ocean and Atmospheric GIS Forum at their headquarters in Redlands on Novermber 5-7, 2019. Check it out and register.
SoCalGIS.org 