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Dave MacLean

@daveatcogs.bsky.social

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

1,503 Followers  |  374 Following  |  1,007 Posts  |  Joined: 10.02.2024  |  1.6228

Latest posts by daveatcogs.bsky.social on Bluesky

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Copernicus Image of the Day showing smoke over Canada on 3 August www.copernicus.eu/en/media/ima...

06.08.2025 12:42 โ€” ๐Ÿ‘ 34    ๐Ÿ” 10    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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One more ๐Ÿ˜Š

Btw. it started to erupt 30 mins. ago ๐Ÿ˜Š๐ŸŒ‹

06.08.2025 11:28 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Good morning!

Hereโ€™s are your 3 minutes of peace and calm. Iโ€™m looking forward to painting this one tonight!

#OceanDevotion

06.08.2025 10:25 โ€” ๐Ÿ‘ 113    ๐Ÿ” 15    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 2

Sad news :(

06.08.2025 00:36 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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What's that? You need a 2026 wall calendar with #maps? Try this for size. I get to be Mr February (Cheysson reproduction) and Mr July (Mars). Other months exist.

www.esri.com/en-us/esri-p...

05.08.2025 18:18 โ€” ๐Ÿ‘ 17    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

See bsky.app/profile/yhzw... !

05.08.2025 13:59 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

<goes into LinkedIn to remove my follow-up message to Bill!>

05.08.2025 13:58 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Last nightโ€™s moon from Bridgetown, Nova Scotia. iPhone 15 on 7.5 zoom

Last nightโ€™s moon from Bridgetown, Nova Scotia. iPhone 15 on 7.5 zoom

Last nightโ€™s moon from Bridgetown, Nova Scotia. Left: Pic of the display screen on #FujiFilm FinePix S1 (which was fully zoomed in)

Last nightโ€™s moon from Bridgetown, Nova Scotia. Left: Pic of the display screen on #FujiFilm FinePix S1 (which was fully zoomed in)

Last nightโ€™s moon from #Bridgetown, #NovaScotia. Left: iPhone 15 on 7.5 zoom; right: pic of the display screen on #FujiFilm FinePix S1 (which was fully zoomed in). For the past few days, weโ€™ve had some haze caused by those wildfires out west.

05.08.2025 13:52 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Quote-thread @huubeggen.bsky.social: the details in ๐Ÿ‘‡ these 1000-mm images along the #Volga River!

On the interactive map isspix.com/ISS073, there are three pins (at each of #SvetlyYar, #KamennyiYar, & #KapustinYar) for Huub's post; each also has link to the cosmonaut's downloadable high-res

05.08.2025 12:20 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Annapolis Valley community gathers to help pod of dolphins trapped in mud | CBC News Melissa Pineo and her family noticed a pod of 12 white-sided dolphins in the water on a beach near Canning, N.S. They were enjoying the scenic moment on Sunday morning but after the tide started to go...

They were all saved ๐Ÿ™Œ๐Ÿผ ๐Ÿฌ ๐Ÿ

#NovaScotia

#Annapolis Valley community gathers to help pod of 12 dolphins trapped in mud

People used their bare hands and rope to help the dolphins

www.cbc.ca/news/canada/...

04.08.2025 22:45 โ€” ๐Ÿ‘ 348    ๐Ÿ” 97    ๐Ÿ’ฌ 15    ๐Ÿ“Œ 16
The lightning phenomenon known as a sprite depicted at Jupiter in this illustration Credit: NASA/JPL-Caltech/SwRI

The lightning phenomenon known as a sprite depicted at Jupiter in this illustration Credit: NASA/JPL-Caltech/SwRI

Oct 28, 2020: Sprites, named after folklore, may illuminate Jupiter's atmosphere with blue hues and tendrils, lasting mere milliseconds.

www.nasa.gov/image-article/sprites-frolic-jupiters-atmosphere/

04.08.2025 20:01 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thank you for posting this.

He did wonderful things; RIP

04.08.2025 15:38 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Tagged as another โ€œread for details when preparing course materials for my #COGS coursesโ€ article โ€” thanks!

04.08.2025 14:33 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thanks โ€ฆ and for the repost, follow, too!

04.08.2025 14:12 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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I thought this video would be 3 minutes, but my phone died after one minuteโ€ฆ but enjoy your one minute of peace and calm.

#OceanDevotion

03.08.2025 22:50 โ€” ๐Ÿ‘ 103    ๐Ÿ” 11    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 4

Thanks for wondering about these and for your ideas!

04.08.2025 00:43 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I just looked closely at the original โ€ฆ I /think/ the one in the upper right was a cloud and the โ€œred circled oneโ€ was dust on the iPhone

04.08.2025 00:43 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
Sunset at Brule, Nova Scotia, on Saturday, 2 August 2025; iPhone 15 pic

Sunset at Brule, Nova Scotia, on Saturday, 2 August 2025; iPhone 15 pic

After the pleasure of visiting with friends yesterday, this was the stunning sunset along the Northumberland Strait towards Prince Edward Island from Brule. The water soon got even calmer (as so often happens there). Cape John, NS at right.

Occasional #NovaScotiaSceneryPictures during summer 2025!

03.08.2025 11:27 โ€” ๐Ÿ‘ 53    ๐Ÿ” 6    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 0
Pics During ISS Exp 73

Thanks for covering this event :)

FYI - there is a clickable pin on the interactive map isspix.com/ISS073 for your post - located east of #NewZealand 's north island

02.08.2025 11:43 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Quote-post @huubeggen.bsky.social: really nice ๐Ÿ‘‡ choices for #NoctilucentClouds pics

In #Idaho & #Wyoming on the interactive map isspix.com/ISS073, there are pins for Huub's post; they also have links to the downloadable 170- and 50-mm high-res by astronaut #NicholeAyers

02.08.2025 00:59 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Iโ€™ll definitely keep this in mind in the fall as I update course materials for my classes at #COGS - thanks!

01.08.2025 13:53 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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#Map #Water Stress Around the Globe with #Global Irrigated Area Layer in #ArcGIS Living Atlas tinyurl.com/m6p2b64h

#hydrology #environment #science #data #GIS #esri #mapping #GISchat #geospatial #TheScienceOfWhere #geosky

01.08.2025 13:40 โ€” ๐Ÿ‘ 5    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Quote-post @huubeggen.bsky.social: Wow ๐Ÿ‘‡ nice info on this long exposure from space

Along #Taiwan's southwestern coast on the interactive map isspix.com/ISS073, there is a pair of pins for Huub's post; each also has link to the downloadable 15-mm high-res by astronaut #NicholeAyers

01.08.2025 11:42 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Quote-post @huubeggen.bsky.social: nice catch to ID this thunderflash ๐Ÿ‘‡ pic

A little south of #Mexico (location of ||+|| at photo time) on the interactive map isspix.com/ISS073, there is a pin for Huub's post; it also has link to the downloadable 200-mm high-res by astronaut #NicholeAyers

01.08.2025 11:33 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Quote-thread @huubeggen.bsky.social & @wed-explorer.bsky.social: very nice ๐Ÿ‘‡ choice for a photo of #Perth, #Australia pic and illuminating info.

On the interactive map isspix.com/ISS073, there are two pins for these posts; each also has link to the cosmonaut's downloadable 100-mm high-res

01.08.2025 11:27 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

On that Saturday evening over about 45 min, I saw two (one was REALLY bright). We expect that over the next couple of weeks, there'll be more each evening (that is clear!)

31.07.2025 19:51 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Pics During ISS Exp 73

2/2 There are two pins on the interactive map isspix.com/ISS073 for this Houston-at-night image: 1) just west of #NewOrleans (location of ISS at photo time), 2) at the #TexasMedicalCenter (for @peterhotezmdphd.bsky.social); both have link to the downloadable 200-mm high-res original. #ZoomWAYin

31.07.2025 19:39 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Houston, Texas, as photographed on 15 Jul 2025 at 07:52:52 GMT, by NASA astronaut Nichole Ayers. Nikon Z 9 with VR 200 mm f/2G lens, 200 mm, 1/250 sec, f/2, ISO-25 600

Houston, Texas, as photographed on 15 Jul 2025 at 07:52:52 GMT, by NASA astronaut Nichole Ayers. Nikon Z 9 with VR 200 mm f/2G lens, 200 mm, 1/250 sec, f/2, ISO-25 600

Here is #Houston, photographed on 15 Jul 2025 at (local time) 2:52 AM, by NASA astronaut #NicholeAyers. The ||+|| was about 425 km to the east (near New Orleans) at photo time. More in alt-text. 1/2

31.07.2025 19:31 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Yup - we are quite lucky

31.07.2025 19:17 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thanks for your note!

31.07.2025 12:40 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

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