Dave MacLean
@daveatcogs.bsky.social
1.5K followers 400 following 1.2K posts
GIS Faculty, Centre of Geographic Sciences (COGS); Fellow, Royal Canadian Geographical Society; co-Director, Esri Canada Centre of Excellence (COGS). My posts Just getting started on bluesky Astronaut photos-of-Earth maps: https://isspix.com/MapTourHowTo
Posts Media Videos Starter Packs
Reposted by Dave MacLean
huubeggen.bsky.social
It looks like #comet C/2025 A6 (Lemmon) is visible on the #Abisko aurora webcam tonight. Arrow points to the comet. @cosmos4u.bsky.social
The image shows a screen grab of the Abisko webcam from 19:55:57 CEST tonight. At right is a crop of the image showing part of constellation Ursa Major. An arrow points to a faint 'star' which coincides with the current position of the comet.
Reposted by Dave MacLean
grainreader.bsky.social
... a majestic #ArabianNight in October !
#bloomscrolling #dahlia #fall
daveatcogs.bsky.social
Quote-post @huubeggen.bsky.social: very nice 👇 adjacent-photo stitching and place labelling

There are two map-pins on on the interactive map isspix.com/ISS073 for Huub's post: at #Bruges / #Brugge & #Gent / #Ghent; both also have link to the downloadable 200-mm high-res by astronaut #KimiyaYui
Reposted by Dave MacLean
hydrology.nl
It looks like British Columbia is nice as well.
daveatcogs.bsky.social
Quote-post @cmdr-hadfield.bsky.social: these 👇 socks!

I have a fairly similar pair that I plan on wearing to an event in Halifax on 30 October (more later!)
cmdr-hadfield.bsky.social
Dress for the job you dream of.
Reposted by Dave MacLean
kosmi.bsky.social
Klyuchevskoi volcano in Kamchatka.

Image taken by Sentinel-2 on Oct. 8, 2025.
Reposted by Dave MacLean
infoshymkent.bsky.social
Good morning, everyone! 🌩 Watch as a storm sweeps across the Ustyurt Plateau in western #Kazakhstan. 🌬We wish you a wonderful Friday & a good start into a nice weekend. 😊

#photography #landscape #stormhour #nature #mountains #travel #desert #scape #thephotohour #centralasia
daveatcogs.bsky.social
Giant Chicklets in Antarctica!
Reposted by Dave MacLean
mnhnovascotia.bsky.social
A little #Museum #ASMR for you.

Sound on for gentle brushing sounds.
daveatcogs.bsky.social
Quote-post @deepseadawn.bsky.social: this 👇will be interesting - I'll take it in, then consider how to involve the info in my #FundamentalsOfGIS class for our Marine Geomatics & GIS students at #COGS.
deepseadawn.bsky.social
Free webinar TOMORROW to explore how to establish a centralized system to store, visualize, and analyze seafloor data for an offshore wind project.

cc @seabed2030.bsky.social
🌊 🦑 ⚒️ 🌎 🌍 🌏 #GISchat

www.esri.com/en-us/webina...
Explore ArcGIS Bathymetry for Offshore Energy | Webinar
Learn how ArcGIS Bathymetry streamlines seabed data management for offshore wind projects. Register for the webinar.
www.esri.com
daveatcogs.bsky.social
Quote-post @mgould.bsky.social (thanks for your post): sad news about Michael Phoenix - one of the people I’d seek out at many in-person conferences for a delightful conversation. We’ll miss him
mgould.bsky.social
Sad to inform you that our esteemed Esri colleague Dr. Michael Phoenix passed away last Friday after a short illness. Mike started Esri's education program back in 1992 and was given the Education Award by UCGIS in 2008. RIP my friend.
daveatcogs.bsky.social
Yeah; beautiful colours up and down the Annapolis Valley — but about a week or more earlier than usual
daveatcogs.bsky.social
Quote-thread @huubeggen.bsky.social & @wed-explorer.bsky.social: very nice 👇 choice for a "backlight photo" taken in space & extra sediment-discharge-plume info.

On the map isspix.com/ISS073, there are two pins for their thread; one also has link to #ZenaCardman 's downloadable 50-mm high-res
Reposted by Dave MacLean
cmdr-hadfield.bsky.social
New 5-star thriller, FINAL ORBIT, launches today! If you'd like a signed copy I'll be at Etobicoke Costco tonight, starting at 6:30 (50 Queen Elizabeth Blvd).
Full book signing schedule here: chrishadfield.ca/finalorbitca...
Reposted by Dave MacLean
kosmi.bsky.social
Eruption of Etna volcano in Sicily.

Image taken by Sentinel-2 on Aug. 30, 2021.
Reposted by Dave MacLean
infoshymkent.bsky.social
🏞️ Today, we start the morning with a fabulous view over the Tortkara Lake - one of the Sibe Lakes - in eastern #Kazakhstan.

We wish you a wonderful Tuesday. 🤗

#EastCoastKin #Cairns #Rocks #MountainMonday #BlueSkyMonday #LandscapePhotography #Hiking #CentralAsia #RockinTuesday #ColorADay #BlueTue
daveatcogs.bsky.social
Fabulous picture of tonight’s fabulous moon!

(Was lovely and clear here in Nova Scotia, too)
daveatcogs.bsky.social
Oh wow — you got a wonderful pic of it!
Reposted by Dave MacLean
mildthing99.bsky.social
*Aim for Copernicus*
Airliner en route MAN-GVA crossing #WaxingGibbous 🌒 67.6% S of Worthing seen from #SurreyHills (sorry a bit juddery!)
@davidbflower.bsky.social
@stormhour.com
@metoffice.gov.uk
@thephotohour.bsky.social
#StormHour
Details:[email protected] A350-941 @flyethiopian.bsky.social
Reposted by Dave MacLean
infoshymkent.bsky.social
Good morning everyone! 🌞 The sun is shining bright in the Monument Valley of the Mangystau region in #Kazakhstan. 🗻 Would you like to be there, too?🏜️ We wish you a sunny Monday, too! 🤗

#Photography #Landscape #Mountains #ThePhotoHour #Bluesky #BlueskyMonday #Nature #CentralAsia #MountainMonday
Reposted by Dave MacLean
nsgov.bsky.social
The Lake George wildfire is still out of control. Crews worked extremely hard yesterday to limit growth to an estimated 285 hectares despite dry, windy conditions. No reports of damage to structures.
Wildfire update
Lake George 
Kings county
Reposted by Dave MacLean
kosmi.bsky.social
Shiveluch volcano in Kamchatka.

Image taken today by Sentinel-2.
daveatcogs.bsky.social
… zinging along at 27 500 kph!
daveatcogs.bsky.social
<song now in my head!>

Enjoy your rain-free day!