Cian 🏳️🌈🏳️⚧️ (he/him)
@cbdawson.bsky.social
• San Francisco Bay Area • Queer • Too many nature pix • FAIR and open gov science in the public interest • Geoscience • Water Resources • Birds! • Public Lands • Burrowing Owl & Pupfish stan acct •
This is a personal account, obviously 🙄
This is a personal account, obviously 🙄
Pinned
Ok, #AGU25 is fast approaching & I should really be getting the word out about some activities I'm excited about...
This year we're launching a new initiative, exhibit hall tours! Join me for a guided tour focused on drone-based sensors. Learn more or sign up: gatherspot.org/events/54252...
This year we're launching a new initiative, exhibit hall tours! Join me for a guided tour focused on drone-based sensors. Learn more or sign up: gatherspot.org/events/54252...
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
January 4, 2026 at 11:53 PM
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
Flood Advisory issued January 4 at 12:17PM PST until January 4 at 2:45PM PST by NWS San Francisco CA
Additional Details Here.
Additional Details Here.
January 4, 2026 at 8:30 PM
Flood Advisory issued January 4 at 12:17PM PST until January 4 at 2:45PM PST by NWS San Francisco CA
Additional Details Here.
Additional Details Here.
I thought the rain was supposed to taper off for a bit, but it's a downpour out there.
a close up of a cat 's face with water coming out of its eyes .
Alt: Animated gif: a close up of a cat 's face with water coming out of its eyes .
media.tenor.com
January 4, 2026 at 8:37 PM
I thought the rain was supposed to taper off for a bit, but it's a downpour out there.
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
I would add that every bicycle lane, every transit line, and every street we can give back to people is also a tool in our march for peace as we try to get away from fossil fuels and the violence, despoliation, and corruption they enable.
January 4, 2026 at 12:14 AM
I would add that every bicycle lane, every transit line, and every street we can give back to people is also a tool in our march for peace as we try to get away from fossil fuels and the violence, despoliation, and corruption they enable.
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
135 years have passed since the preparation of the 1891 Preliminary Mineralogical and Geological Map of the State of California.
This webpage walks you through the history and evolution of geologic maps of California. www.conservation.ca.gov/cgs/rgm/hist...
This webpage walks you through the history and evolution of geologic maps of California. www.conservation.ca.gov/cgs/rgm/hist...
January 3, 2026 at 4:18 PM
135 years have passed since the preparation of the 1891 Preliminary Mineralogical and Geological Map of the State of California.
This webpage walks you through the history and evolution of geologic maps of California. www.conservation.ca.gov/cgs/rgm/hist...
This webpage walks you through the history and evolution of geologic maps of California. www.conservation.ca.gov/cgs/rgm/hist...
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
Jasper Ridge Bio Presv, SanMateo County, CA
🗺37.4053, -122.2396 🧭186° ⛰400 ft
https://ops.alertcalifornia.org/cam-console/2039
🗺37.4053, -122.2396 🧭186° ⛰400 ft
https://ops.alertcalifornia.org/cam-console/2039
January 3, 2026 at 12:06 PM
Jasper Ridge Bio Presv, SanMateo County, CA
🗺37.4053, -122.2396 🧭186° ⛰400 ft
https://ops.alertcalifornia.org/cam-console/2039
🗺37.4053, -122.2396 🧭186° ⛰400 ft
https://ops.alertcalifornia.org/cam-console/2039
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
I wanna emphasize this, especially for folks who will be out on levees along SF Bay tidal marshes. In a lot of marshes, sensitive wildlife like Ridgway’s rail and salt marsh harvest mice will be concentrated along levees, where they’re trying to not get eaten by harriers. Give them some space!
Please be safe when you observe the #KingTides. The ocean is no joke, and flooded roads are no joke. Also, be aware of shore birds and other animals that may be much farther upland than usual, and may be stressed by the extreme high tides. Enjoy our coast safely. (3/?)
January 3, 2026 at 5:19 AM
I wanna emphasize this, especially for folks who will be out on levees along SF Bay tidal marshes. In a lot of marshes, sensitive wildlife like Ridgway’s rail and salt marsh harvest mice will be concentrated along levees, where they’re trying to not get eaten by harriers. Give them some space!
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
We are looking at some high King Tides events today and tomorrow according to the @nws.noaa.gov Bay Area office. If you are near the coast, stay safe and follow closure notices.
January 2, 2026 at 4:47 PM
We are looking at some high King Tides events today and tomorrow according to the @nws.noaa.gov Bay Area office. If you are near the coast, stay safe and follow closure notices.
I love this! This made it so much easier the last time I was touristing in Portland, I didn't have to figure out a new card & then get stuck with cash on it.
But I hope it never becomes the only option: we should not have to give our travel details to a credit card company to ride public transit.
But I hope it never becomes the only option: we should not have to give our travel details to a credit card company to ride public transit.
BART riders now have the option to pay for BART at the fare gates using contactless credit and debit cards, as well as Apple Pay and Google Pay.
Tap and Ride is an immense timesaver for riders because zero registration or setup process is required.
bsky.app/profile/bart...
Tap and Ride is an immense timesaver for riders because zero registration or setup process is required.
bsky.app/profile/bart...
📢NYE is coming up fast and BARTy is here to remind riders about Tap and Ride!
You can now pay for BART at the fare gates using contactless credit and debit cards, as well as Apple Pay and Google Pay.
It is a timesaver as you head out for New Year’s Eve. Zero registration or setup is required!
You can now pay for BART at the fare gates using contactless credit and debit cards, as well as Apple Pay and Google Pay.
It is a timesaver as you head out for New Year’s Eve. Zero registration or setup is required!
December 31, 2025 at 11:08 PM
I love this! This made it so much easier the last time I was touristing in Portland, I didn't have to figure out a new card & then get stuck with cash on it.
But I hope it never becomes the only option: we should not have to give our travel details to a credit card company to ride public transit.
But I hope it never becomes the only option: we should not have to give our travel details to a credit card company to ride public transit.
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
This cult hauls its own Kool-Aid. 😉
I don't need a cargo bike.
I don't want a cargo bike.
But I love the cargo bike feed because it's all about joy: people finding something they feel makes their life so much better, so they want others to be happier too and to become part of their community.
So yeah, I'm pretty sure it's a cult. 😆
I don't want a cargo bike.
But I love the cargo bike feed because it's all about joy: people finding something they feel makes their life so much better, so they want others to be happier too and to become part of their community.
So yeah, I'm pretty sure it's a cult. 😆
This tracks, a totally unintended consequence of getting an e-cargo bike is that family errands on weekends are way less of a hassle, and dare I say fun!
December 31, 2025 at 5:51 PM
This cult hauls its own Kool-Aid. 😉
I don't need a cargo bike.
I don't want a cargo bike.
But I love the cargo bike feed because it's all about joy: people finding something they feel makes their life so much better, so they want others to be happier too and to become part of their community.
So yeah, I'm pretty sure it's a cult. 😆
I don't want a cargo bike.
But I love the cargo bike feed because it's all about joy: people finding something they feel makes their life so much better, so they want others to be happier too and to become part of their community.
So yeah, I'm pretty sure it's a cult. 😆
This tracks, a totally unintended consequence of getting an e-cargo bike is that family errands on weekends are way less of a hassle, and dare I say fun!
E-cargo bikes sound pretty amazing in this new UK study:
"Parents’ and children’s enjoyment, curiosity, and sense of adventure encouraged additional travel, transforming routine journeys into playful and memorable family experiences."
doi.org/10.1016/j.tb...
"Parents’ and children’s enjoyment, curiosity, and sense of adventure encouraged additional travel, transforming routine journeys into playful and memorable family experiences."
doi.org/10.1016/j.tb...
December 31, 2025 at 3:47 PM
I don't need a cargo bike.
I don't want a cargo bike.
But I love the cargo bike feed because it's all about joy: people finding something they feel makes their life so much better, so they want others to be happier too and to become part of their community.
So yeah, I'm pretty sure it's a cult. 😆
I don't want a cargo bike.
But I love the cargo bike feed because it's all about joy: people finding something they feel makes their life so much better, so they want others to be happier too and to become part of their community.
So yeah, I'm pretty sure it's a cult. 😆
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
I've been mostly quite lucky weather-wise on recent outings. Not so much today. 😶🌫️
But also I'm curious if recent storms pushed the birds into other spots -- it's not just that I couldn't see them, the numbers were pretty low, and it was very quiet.
But also I'm curious if recent storms pushed the birds into other spots -- it's not just that I couldn't see them, the numbers were pretty low, and it was very quiet.
December 31, 2025 at 4:45 AM
I've been mostly quite lucky weather-wise on recent outings. Not so much today. 😶🌫️
But also I'm curious if recent storms pushed the birds into other spots -- it's not just that I couldn't see them, the numbers were pretty low, and it was very quiet.
But also I'm curious if recent storms pushed the birds into other spots -- it's not just that I couldn't see them, the numbers were pretty low, and it was very quiet.
That reminds me of one of my favorite mail stories from the '80s. I was an avid letter writer & penpal 📬
We lived in a town of ~ 15k people in upstate New York. One day I received a letter addressed with only my first name, the street name, and the city name. And the mail carrier figured it out! 🤣
We lived in a town of ~ 15k people in upstate New York. One day I received a letter addressed with only my first name, the street name, and the city name. And the mail carrier figured it out! 🤣
an owl is holding an envelope in its beak while standing next to a person 's hand .
Alt: an owl is holding an envelope in its beak and a person's hand is visible taking the envelope
media.tenor.com
December 29, 2025 at 10:36 PM
That reminds me of one of my favorite mail stories from the '80s. I was an avid letter writer & penpal 📬
We lived in a town of ~ 15k people in upstate New York. One day I received a letter addressed with only my first name, the street name, and the city name. And the mail carrier figured it out! 🤣
We lived in a town of ~ 15k people in upstate New York. One day I received a letter addressed with only my first name, the street name, and the city name. And the mail carrier figured it out! 🤣
Way to undermine the increasingly fewer and fewer reasons to use USPS. Now it's ~useless for bill pay, taxes, or vote by mail.
I regularly still send cards & postcards, and it's been striking to me how delivery times have gotten slower and slower in the last several years.
I regularly still send cards & postcards, and it's been striking to me how delivery times have gotten slower and slower in the last several years.
As of 12/24/25, USPS changed policy on when they postmark mail. Mail dropped off is no longer guaranteed a same-day postmark. Tax returns & other time-sensitive items are now stamped when they reach a regional processing center, which may be days later. Plan deadlines accordingly to avoid penalties.
USPS Announces Changes to the Postmark Date System
The United States Postal Service (USPS) has adopted a final rule (FR Doc.
share.google
December 29, 2025 at 10:27 PM
Way to undermine the increasingly fewer and fewer reasons to use USPS. Now it's ~useless for bill pay, taxes, or vote by mail.
I regularly still send cards & postcards, and it's been striking to me how delivery times have gotten slower and slower in the last several years.
I regularly still send cards & postcards, and it's been striking to me how delivery times have gotten slower and slower in the last several years.
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
Bullit for sale in Los Gatos! Larry vs. Harry Bullitt Cargo Bike
sfbay.craigslist.org/sby/bik/d/lo...
sfbay.craigslist.org/sby/bik/d/lo...
Larry vs. Harry Bullitt Cargo Bike - bicycles - by owner - bike sale - craigslist
We are selling our family Bullitt Cargo Bike that we've used to transport kids over the years around town. Great bike for kids, families, and stuff. Orange color. Time to move on, with my youngest...
sfbay.craigslist.org
December 29, 2025 at 12:37 AM
Bullit for sale in Los Gatos! Larry vs. Harry Bullitt Cargo Bike
sfbay.craigslist.org/sby/bik/d/lo...
sfbay.craigslist.org/sby/bik/d/lo...
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
11,000 homes in the Richmond and Presidio lost power again Sunday night.
A little over two hours later, power has been restored to most homes.
S.F. has now had three major power outages in the last eight days.
missionlocal.org/2025/12/sf-p...
A little over two hours later, power has been restored to most homes.
S.F. has now had three major power outages in the last eight days.
missionlocal.org/2025/12/sf-p...
11,000 lose power in yet another S.F. outage in the Richmond and Presidio
Unplanned PG&E outage comes hours ahead of planned outage
missionlocal.org
December 29, 2025 at 6:35 AM
11,000 homes in the Richmond and Presidio lost power again Sunday night.
A little over two hours later, power has been restored to most homes.
S.F. has now had three major power outages in the last eight days.
missionlocal.org/2025/12/sf-p...
A little over two hours later, power has been restored to most homes.
S.F. has now had three major power outages in the last eight days.
missionlocal.org/2025/12/sf-p...
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
Also a chilly visit to the Tuolumne River at Dos Rios, which I think is still the newest CA state park unit.
Important spot for river and floodplain management & restoration.
Next time I need to walk to the opposite side of the park, to the confluence of the Tuolumne & San Joaquin Rivers instead.
Important spot for river and floodplain management & restoration.
Next time I need to walk to the opposite side of the park, to the confluence of the Tuolumne & San Joaquin Rivers instead.
December 29, 2025 at 5:45 AM
Also a chilly visit to the Tuolumne River at Dos Rios, which I think is still the newest CA state park unit.
Important spot for river and floodplain management & restoration.
Next time I need to walk to the opposite side of the park, to the confluence of the Tuolumne & San Joaquin Rivers instead.
Important spot for river and floodplain management & restoration.
Next time I need to walk to the opposite side of the park, to the confluence of the Tuolumne & San Joaquin Rivers instead.
Chilly but calm morning along the Stanislaus River, at new-to-me Caswell Memorial State Park. could hear sandhill cranes all around, but didn't see any. It preserves a section of Central Valley mature oak riparian forest. Campground looked nice, might add it to my list of nearby options.
December 29, 2025 at 5:30 AM
Chilly but calm morning along the Stanislaus River, at new-to-me Caswell Memorial State Park. could hear sandhill cranes all around, but didn't see any. It preserves a section of Central Valley mature oak riparian forest. Campground looked nice, might add it to my list of nearby options.
Reposted by Cian 🏳️🌈🏳️⚧️ (he/him)
What's your fav national park (or monument)?
Death Valley for me, hands down.
Death Valley for me, hands down.
December 29, 2025 at 5:05 AM
What's your fav national park (or monument)?
Death Valley for me, hands down.
Death Valley for me, hands down.
They really blend in surprisingly well sometimes.
December 28, 2025 at 4:59 AM
They really blend in surprisingly well sometimes.