California – The Map Room https://www.maproomblog.com Blogging about maps since 2003 Mon, 31 Jul 2023 13:01:47 +0000 en-US hourly 1 https://www.maproomblog.com/xq/wp-content/uploads/2017/04/cropped-logo-2017-04-32x32.jpg California – The Map Room https://www.maproomblog.com 32 32 116787204 Adam Savage, Paper Maps and the Thomas Guide https://www.maproomblog.com/2023/07/adam-savage-paper-maps-and-the-thomas-guide/ Mon, 31 Jul 2023 13:01:47 +0000 https://www.maproomblog.com/?p=1817651 More]]>

In a 15-minute video posted to YouTube, Adam Savage ruminates on the advantages of paper maps, the Los Angeles institution that was the Thomas Guide, and navigating by paper map in general (with digressions on the Knowledge and trap streets and such).

Previously: The Rise and Fall of the Thomas Guide.

]]>
1817651
California (Mapped by) Typewriter https://www.maproomblog.com/2023/07/california-mapped-by-typewriter/ Tue, 25 Jul 2023 23:29:56 +0000 https://www.maproomblog.com/?p=1817516 More]]> A typewritten elevation map of California by R. J. AndrewsAnything mashing up maps and typewriters is guaranteed to get my attention (I have 37 of the latter and rather a lot more of the former). So I have no choice but to share R. J. Andrews’s “Typewriter,” an elevation map of California created on a manual typewriter.

Created by layering combinations of nearly 2,500 keystrokes (I, H, X, and O) with a 1953 Royal Quiet De Luxe typewriter on Masa 77gsm paper from Japan. Based on a California Albers projection at approximately 1:5,000,000 scale.

The original is held by the David Rumsey Map Collection.

]]>
1817516
Mapping Without a Licence https://www.maproomblog.com/2022/10/mapping-without-a-licence/ Fri, 28 Oct 2022 15:16:37 +0000 https://www.maproomblog.com/?p=1809570 More]]> An odd story out of California, reported on by Vice’s Chloe Xiang, from earlier this month. Ryan Crownholm’s website, MySitePlan.com, sells residential and commercial site plans. California’s Board for Professional Engineers, Land Surveyors, and Geologists has fined him $1,000 for practising land surveying without a licence and ordered him to shut down the site. He’s fighting the citation in court with the assistance of the libertarian Institute for Justice: see their page on the complaint. Their argument is that California surveying laws are vague enough that a literal interpretation would make any map drawn in California, no matter how informal or non-authoritative, illegal.

It’s unlikely to say the least that the Board intends to ban Google Maps or every California-based instance of GIS. This is an edge case. Crownholm’s defence turns on his drawings being “non-authoritative” and a disclaimer that these are not legal surveys. The Board apparently thinks that’s insufficient. A spot of litigation seems required to clarify things.

]]>
1809570
Google Rerouted Traffic Up Poorly Maintained Mountain Roads During a Blizzard https://www.maproomblog.com/2022/01/google-rerouted-traffic-up-poorly-maintained-mountain-roads-during-a-blizzard/ Mon, 03 Jan 2022 21:48:21 +0000 https://www.maproomblog.com/?p=1805817 More]]> Screenshot of Google Maps showing driving directions in California
Screenshot (Crystal A. Kolden/@pyrogeog on Twitter)

Last week, when a snowstorm closed Interstate 80 east of Sacramento, Google Maps started redirecting traffic up poorly maintained mountain roads, which is about as good an idea during a blizzard as it sounds.

As SFGate reports,

Other dispatches from Twitter allege that the service—particularly its mobile app—directed people to closed-off highways, mountain passes and lakeside roads to get around. This is in direct contrast to Caltrans’ messaging to avoid workarounds. Caltrans District 3 spokesperson Steve Nelson told SFGATE on Monday that they were seeing drivers trying to skirt highway closures with side streets. “They’ll take side roads and try and sneak past the closures, and that never ends well,” he said.

Google engineer Sören Meyer-Eppler responded on Twitter to spell out some of the technical and logistical problems involved in rerouting traffic during bad weather: the difficulty in finding timely data (and in such cases data need to be really timely) and the risk of false positives. More at Jalopnik.

]]>
1805817
About California Movie Location Maps https://www.maproomblog.com/2021/12/about-california-movie-location-maps/ Wed, 01 Dec 2021 17:15:25 +0000 https://www.maproomblog.com/?p=1805519 More]]>

This 1930s map has made the rounds—it claims to show the global locations that various sites in California could plausibly represent on screen, and swaps the place-names accordingly (e.g. the Sierras can play the French Alps) [thread] pic.twitter.com/lVmYjWYyi6

— Patrick Ellis (@aeroscopics) November 27, 2021

In the above Twitter thread, and in a new article in Film History: An International Journal, Patrick Ellis looks at the several maps of California that portray it as being able to stand in for locations around the world. It’s more than just location scouting for film shoots (though it very much is that); it’s also about marketing for in-state tourism. (The article is paywalled.)

]]>
1805519
New Exhibition of California in Maps https://www.maproomblog.com/2021/10/new-exhibition-of-california-in-maps/ Thu, 07 Oct 2021 21:13:06 +0000 https://www.maproomblog.com/?p=1791842 More]]> You Are Here: California Stories on the Map is an exhibition showing at the Oakland Museum of California through 2022. “Showcasing a diverse range of maps from Oakland, the Bay Area, and California—from environmental surroundings and health conditions to community perspectives and creative artworks—experience how maps can be a powerful tool to share unique points of view and imagine a better future.” San Francisco Examiner coverage. Admission is $16 or free to museum members.

]]>
1791842
Mapping Climate Change’s Impact on California’s Fire Seasons https://www.maproomblog.com/2020/10/mapping-climate-changes-impact-on-californias-fire-seasons/ Fri, 23 Oct 2020 14:22:20 +0000 https://www.maproomblog.com/?p=1789581 More]]>
ProPublica (screenshot)

ProPublica maps the change in California’s fire seasons. “As California continues battling its worst wildfire season on record, new research shows that fall fire weather days—days with high temperatures, low humidity and high wind speeds—will double in parts of the state by the end of the century and will increase 40% by 2065. […] In the north, a summer fire season has been driven by high temperatures and low humidity. In Southern California, fall fire season is driven by east winds. With climate change, though, both the summer and fall fire seasons have grown longer, and are melting into each other, overlapping in time and space.” [Joshua Stevens]

]]>
1789581
California Wildfires: Mapping the Bigger Picture https://www.maproomblog.com/2020/10/california-wildfires-mapping-the-bigger-picture/ Wed, 07 Oct 2020 22:36:21 +0000 https://www.maproomblog.com/?p=1789514 More]]> 100 Years of Wildfire (John Nelson)Two maps:

John Nelson’s 100 Years of Wildfire is a static map showing a century of California wildfires, simplified into zones of 100 square miles. The map measures the cumulative burn area for each zone over that entire time: this can exceed 100 or even 200 percent if large fires are frequent enough, or the whole damn area burns down more than once.

The California Fire Observatory combines longer-term data about forest cover with up-to-date information about wildfire hotspots and wind speed. “We map the drivers of wildfire hazard across the state—including forest structure, weather, topography & infrastructure—from space. […] By providing these data for free we hope to support the development of data-driven land management strategies that increase wildfire resilience—for forests and communities—enabling people and nature to thrive.” [Maps Mania]

]]>
1789514
Mapping the California Heat Wave https://www.maproomblog.com/2020/09/mapping-the-california-heat-wave/ Mon, 21 Sep 2020 13:35:12 +0000 https://www.maproomblog.com/?p=1789329 More]]> NASA Earth Observatory: California Heatwave 2020
NASA Earth Observatory (Joshua Stevens)

NASA Earth Observatory: “The map above shows air temperatures across the United States on September 6, 2020, when much of the Southwest roasted in a dramatic heatwave. The map was derived from the Goddard Earth Observing System (GEOS) model and represents temperatures at 2 meters (about 6.5 feet) above the ground. The darkest red areas are where the model shows temperatures surpassing 113°F (45°C).” Heat waves in southern California have become “more frequent, intense, and longer-lasting,” the article goes on to say.

]]>
1789329
More on the Western U.S. Wildfires https://www.maproomblog.com/2020/09/more-on-the-western-u-s-wildfires/ Mon, 14 Sep 2020 22:39:16 +0000 https://www.maproomblog.com/?p=1789281 More]]>
NASA Earth Observatory

NASA Earth Observatory has had several stories on the western U.S. wildfires, gathered here. This story summarizes the situation; satellite images of the smoke generated by the fires can be seen here, here and here.

Marena Brinkhurst of Mapbox has a comprehensive list of open data sources relating to the wildfires, smoke, and air quality.

Mark Altaweel at GIS Lounge looks at how GIS is being used to map wildfires, smoke and air pollution.

Previously: California Wildfires, 2020 Edition.

]]>
1789281
California Wildfires, 2020 Edition https://www.maproomblog.com/2020/08/california-wildfires-2020-edition/ Mon, 24 Aug 2020 18:20:55 +0000 https://www.maproomblog.com/?p=1789160 More]]>
NOAA/ESRL

Wildfire status tracking. The California Governor’s Office of Emergency Services posts a daily map showing the status of active wildfires in the state. It’s basically a one-page PDF you can print and hand out: decidedly old school and not remotely interactive. The New York Times has a series of maps tracking the various wildfire complexes. See also the Los Angeles Times interactive wildfires map, the address of which will probably work next year too. [Maps Mania/Nicholas Bogel-Burroughs]

Forecasting. NOAA’s High-Resolution Rapid Refresh (HRRR) atmospheric model includes an experimental smoke forecast. It and other smoke and fire models are available as hourly static images (see above) or via this interactive map. [Maps Mania/UWCIMSS]

Google is adding wildfire boundaries to Search and Maps: it will provide warnings to nearby users and have an impact on driving directions. [Engadget/TechCrunch/The Verge]

]]>
1789160
New York Times Maps of the California Wildfires https://www.maproomblog.com/2019/10/new-york-times-maps-of-the-california-wildfires/ Thu, 31 Oct 2019 13:49:47 +0000 https://www.maproomblog.com/?p=1788014 More]]> The New York Times maps ongoing wildfires in California—and the state of things is that I have to specify which: in 2019; the Easy, Getty and Kincade fires in Ventura, Los Angeles and Sonoma counties, respectively. The page also maps where PG&E engaged in preventative power outages to inhibit the spread of fires.

]]>
1788014
Mapping Ground Displacement from the California Earthquakes https://www.maproomblog.com/2019/07/mapping-ground-displacement-from-the-california-earthquakes/ Wed, 10 Jul 2019 23:36:24 +0000 https://www.maproomblog.com/?p=1787504 More]]>
NASA/JPL-Caltech

This interferogram shows the ground displacement caused by last week’s earthquakes in southern California. Produced by NASA’s Jet Propulsion Laboratory, it’s based on synthetic aperture radar (SAR) images from JAXA’s ALOS-2 satellite taken both before (16 April 2018) and after (8 July 2019) the earthquakes. Each colour cycle represents 12 centimetres (4.8 inches) of ground displacement.

]]>
1787504
California Wildfire Roundup https://www.maproomblog.com/2018/11/california-wildfire-roundup/ Tue, 20 Nov 2018 23:47:27 +0000 https://www.maproomblog.com/?p=1786720 More]]>
San Francisco Chronicle (screenshot)

The San Francisco Chronicle’s 2018 California Fire Tracker is an interactive map of ongoing and contained wildfires—notably, at this moment, the Camp and Woolsey fires. It includes fire perimeter and air quality data. (Note: it’s glitchy on desktop Safari.)

Two Esri maps: a general wildfire map and a map of smoke from wildfires [Maps Mania]. Add to that a map of field damage reports in the area hit by the Camp Fire [Maps Mania].

NASA/JPL-Caltech

The Jet Propulsion Laboratory has produced a map of the damage from the Camp Fire based on satellite radar images. NASA Earth Observatory has maps and animations showing the impact of the Camp Fire on air quality and satellite images of the Woolsey Fire burn scar.

NOAA

The New York Times has a map tracking air quality in California. Smoke from the fires has reached the east coast: an outcome predicted by atmospheric models (see above map).

This interactive map from NBC News that superimposes the Camp Fire on any location to help people outside California get a sense of how big these fires are. [Maps Mania]

]]>
1786720
California’s Camp Fire https://www.maproomblog.com/2018/11/californias-camp-fire/ Mon, 12 Nov 2018 00:09:07 +0000 https://www.maproomblog.com/?p=1786638
NASA/USGS/Landsat 8

NASA Earth Observatory published a Landsat 8 image, dated 8 November, of the massive Camp Fire in northern California. Meanwhile, Maps Mania links to several California wildfire-related maps and resources.

]]>
1786638
Mapping the Pacific Coast in the Age of Exploration: An Exhibition https://www.maproomblog.com/2018/10/mapping-the-pacific-coast-in-the-age-of-exploration-an-exhibition/ Fri, 05 Oct 2018 15:00:17 +0000 https://www.maproomblog.com/?p=1786345 More]]>

Opening today at the Santa Barbara Museum of Natural History: The Kingdom of California: Mapping the Pacific Coast in the Age of Exploration, an exhibition of 16th- to 19th-century maps and books from the museums own rare book collection, the Map and Atlas Museum of La Jolla and the Santa Barbara Mission Archive-Library. The Santa Maria Times notes the inclusion of maps showing California as an island as well as 19th-century coastal charts. Admission included with museum admission, runs until 2 January 2019. [WMS]

]]>
1786345
Mapping the Northern California Wildfires https://www.maproomblog.com/2018/08/mapping-the-northern-california-wildfires-2/ Sat, 04 Aug 2018 18:49:26 +0000 https://www.maproomblog.com/?p=1786074 More]]>
Washington Post (screenshot)

The Washington Post maps the largest of the wildfires burning in northern California: the Carr Fire threatening the city of Redding and surrounding communities. The Redding Record Searchlight has drone footage of the destruction wreaked by the Carr Fire in Shasta County. NASA has natural and false-colour imagery (Earth Observatory, Visible Earth) of the Carr Fire, as well as the Ranch and River Fires to the south, the so-called Mendocino Complex. See the Mercury News’s fire map of the Mendocino Complex, whose two fires’ combined acreage is now larger than the Carr Fire. Meanwhile, German astronaut Alexander Gerst observed the California wildfires from the International Space Station. [San Francisco Chronicle]

]]>
1786074
How to Build a Fire Map https://www.maproomblog.com/2017/12/how-to-build-a-fire-map/ Fri, 08 Dec 2017 00:10:10 +0000 http://www.maproomblog.com/?p=15963 More]]> Last October Robin Kraft posted an online map of the northern California wildfires showing satellite imagery from before and after the fires (see previous entry); today he’s posted a blog entry explaining how he built it, in great technical detail. The timing is not accidental: “There is another fire raging in Los Angeles right now — if DigitalGlobe and Planet release their data, you can use this guide to make your own map.”

]]>
15963
Google Using Street View Cars to Map Air Pollution https://www.maproomblog.com/2017/11/google-using-street-view-cars-to-map-air-pollution/ Wed, 15 Nov 2017 18:30:47 +0000 http://www.maproomblog.com/?p=5879 More]]>
Google

Google is using its Street View cars, now equipped with air-quality sensors, to measure air pollution in California on a block-by-block level.

Earlier this year, we shared the first results of this effort with pollution levels throughout the city of Oakland.

We’re just beginning to understand what’s possible with this hyper-local information and today, we’re starting to share some of our findings for the three California regions we’ve mapped: the San Francisco Bay Area, Los Angeles, and California’s Central Valley (the Street View cars drove 100,000 miles, over the course of 4,000 hours to collect this data!) Scientists and air quality specialists can use this information to assist local organizations, governments, and regulators in identifying opportunities to achieve greater air quality improvements and solutions.

]]>
5879
The New York Times Maps the Tubbs Fire https://www.maproomblog.com/2017/10/the-new-york-times-maps-the-tubbs-fire/ Mon, 23 Oct 2017 19:00:07 +0000 http://www.maproomblog.com/?p=5459
The New York Times

The destruction wrought by the Tubbs Fire in northern California, and the speed at which it spread, is mapped with excruciating detail by the New York Times graphics team.

]]>
5459
California Wildfires: Mapping Sonoma County https://www.maproomblog.com/2017/10/california-wildfires-mapping-sonoma-county/ Thu, 19 Oct 2017 15:00:12 +0000 http://www.maproomblog.com/?p=5284 More]]> Sonoma County’s wildfire information page points to a number of useful maps: fire perimeter boundary maps, current evacuation areas, road closures, rapid evaluation safety assessment (RESA) maps. The City of Santa Rosa’s emergency information page also has maps specific to that city; Heavy also has a roundup. See also Cal Fire’s structural status information map. [The Mercury News]

Previously: Mapping the Northern California Wildfires.

]]>
5284
Mapping the Northern California Wildfires https://www.maproomblog.com/2017/10/mapping-the-northern-california-wildfires/ Tue, 17 Oct 2017 23:27:58 +0000 http://www.maproomblog.com/?p=5222 More]]> NASA Earth Observatory
NASA Earth Observatory

Maps and satellite imagery of the wildfires in Northern California include the San Francisco Chronicle’s interactive map; Robin Kraft’s interactive map  showing satellite imagery from before and after the fire; this New York Times page mapping building damage in Santa Rosa; the Washington Post’s coverage of the devastation; and NASA Earth Observatory’s images of the smoke plumes here and here.

]]>
5222
Two Upcoming Exhibitions https://www.maproomblog.com/2017/01/two-upcoming-exhibitions/ Tue, 17 Jan 2017 23:32:32 +0000 http://www.maproomblog.com/?p=3764 More]]> California as an Island and Worlds That Never Were, an exhibition of maps from the Roy V. Boswell Collection for the History of Cartography at California State University at Fullerton. Runs from 22 January to 29 March at CSU Fullerton’s Pollak Library. News release. [WMS]

Mapping Texas: From Frontier to the Lone Star State features maps spanning more than 400 years of Texas history, mostly from the Texas General Land Office, as well as two museums and private collectors. Runs from 27 January to 8 October at the Houston Museum of Natural Science. News release. [WMS]

]]>
3764
San Francisco’s Buried Ships https://www.maproomblog.com/2016/07/san-franciscos-buried-ships/ Mon, 04 Jul 2016 02:08:10 +0000 http://www.maproomblog.com/?p=2364 More]]> sf-buried-ships

During the gold rush, San Francisco was literally built on top of abandoned ships, as its waterfront was extended out into the Bay. The above map, part of the SFgenealogy site’s section on buried ships, shows the position of those ships. More at UpOut. [Michael Kodysz]

]]>
2364
The California Hiking Map https://www.maproomblog.com/2016/06/the-california-hiking-map/ Sun, 26 Jun 2016 14:24:32 +0000 http://www.maproomblog.com/?p=2342 More]]> california-hiking-map The California Hiking Map is a poster-sized (40″×60″) map of California that purports to show all of the state’s hiking trails on a single map. “The trails shown generally include hiking trails, Class 1 bike paths, and fire roads closed to vehicles. This map also highlights select long distance trails and historical trails. Insets were made for some areas that have a high volume of trails in close proximity.” The result of two years work and a Kickstarter campaign, the map costs $20 plus tax and shipping. [Ryan Mik]

]]>
2342
Typographic Map of San Francisco https://www.maproomblog.com/2016/06/typographic-map-of-san-francisco/ Thu, 23 Jun 2016 22:53:47 +0000 http://www.maproomblog.com/?p=2307 More]]> axis-sf-typo

Axis Maps updated their typographic map of San Francisco last month, with bodies of water, beaches and parks seeing changes. Prints are already sold out are sold out in the UK store but still available in the U.S.; but we can still appreciate the design. [Andy Woodruff]

Earlier blog posts about typographic maps.

]]>
2307
Monterey Bay Area Seafloor Maps Released https://www.maproomblog.com/2016/04/monterey-bay-area-seafloor-maps-released/ Wed, 13 Apr 2016 22:47:14 +0000 http://www.maproomblog.com/?p=1524 More]]>

New seafloor maps of the Monterey Bay area have been released as part of the California Seafloor Mapping Program. The maps “reveal the diverse and complex range of seafloor habitats along 130 kilometers (80 miles) of the central California coast from the Monterey Peninsula north to Pigeon Point.” [Leventhal Map Center]

Previously: Mapping the California Sea Floor.

]]>
1524
The Atlantic on Tom Harrison https://www.maproomblog.com/2016/03/the-atlantic-on-tom-harrison/ Tue, 01 Mar 2016 23:10:54 +0000 http://www.maproomblog.com/?p=1067 More]]> The Atlantic interviews Tom Harrison, an independent cartographer based in San Rafael, California who produces maps of California parks and wilderness areas for hikers and mountain bikers, about his individualistic mapmaking process. (Tom Harrison Maps at Amazon.) [via]

]]>
1067
Mapping the California Sea Floor https://www.maproomblog.com/2015/05/mapping-the-california-sea-floor/ Tue, 26 May 2015 23:04:10 +0000 http://www.maproomblog.com/2015/05/mapping-the-california-sea-floor/ More]]> Colored Shaded-Relief Bathymetry Offshore of San Francisco, California

The USGS‘s California Seafloor Mapping Program has produced a set of insanely detailed maps of the sea floor along the California coast. Downloadable as rather hefty PDF files; the map sheets are three feet across as paper maps. Above, a detail from the shaded-relief bathymetry map of the San Francisco area. Boing Boing, Wired.

]]>
5990
Two Detailed Rail Maps https://www.maproomblog.com/2013/11/two-detailed-rail-maps/ Fri, 01 Nov 2013 13:21:51 +0000 http://www.maproomblog.com/2013/11/two-detailed-rail-maps/ More]]> Northeast Rail Map

A couple of supremely detailed rail maps to bring to your attention, both of which show every line and station of long-distance, regional and commuter rail networks. There’s one for California, which uses a Beck-like, diagrammatic design, and one for the Northeast Corridor (see above), which opts for geographic accuracy. Despite the differences there’s a lot of overlap on the two design teams. Creative Commons licensed, with printed posters available.

]]>
5657