Peter T Fretwell
@ptfretwell.bsky.social
330 followers 48 following 87 posts
Scientist at British Antarctic Survey, Cambridge and author. Interest include Science, nature, cartography, Polar regions and satellite imagery/ remote sensing.
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Damn annoying, confusing our satellite analysis. Someone needs to tell them it's not allowed!
Reposted by Peter T Fretwell
The Dawson-Lambton penguin colony 🐧🐧🐧

Image taken by Sentinel-2 on Oct. 6, 2025.
Reposted by Peter T Fretwell
Some of our recent maps were reviewed for Geology Today & we're pleased to see the positive opinions & appreciation of how much work goes into them 🎉 doi.org/10.1111/gto....

The maps include The South Orkney Islands, Alexander Island, and Bedmap3. Details available in our catalogue - bas.ac.uk/maps
The front cover of our South Orkney Islands and Signy Island map. There is a photo of the landscape on Signy, with a tall, crevassed glacier in the foreground (Orwell Glacier), and clouds and snowy mountains in the distance. The front cover of our Alexander Island map. The photo on the cover shows a faded red tent, with snow-covered, craggy mountains in the background. The front cover of our Bedmap3 map, which shows an extract of the map (without any of the labels). The terrain of the land beneath the ice is shown with a coloured hillshade, ranging from dark blue (deepest) to light brown and white shades (tallest).
Shackleton Ice Shelf colony. Up well on the shelf this year
Clarke Bay also known as Smith Peninsula colony
Dolleman Island colony doing well
They ones Drescher Inlet 😊
Reposted by Peter T Fretwell
Dive into the fascinating world of penguins with The Penguin Book of Penguins, written by @ptfretwell.bsky.social and illustrated by @lisaefretwell.bsky.social! Thank you so much for visiting the store and signing copies of your charming new book, published by @vikingbooksuk.bsky.social✍️

#penguins
Kosmi, can you email me directly about this find please
Looks like the Halley Bay emperors are back at the McDonald Ice Rumples site. This colony has been particularly unlucky with the ice, lets see how they do this year. (image; enhanced Sentinel-2 20th Sept 2025)
Dear Helen, having lived in Northamptonshire for 10 years I know Oundle well and would be delighted to chat. Please drop me a line at [email protected]
Best regards,
Peter
Reposted by Peter T Fretwell
The Coulman Island penguin colony 🐧🐧🐧

Image taken by Sentinel-2 on Sep. 13, 2025.
Reposted by Peter T Fretwell
Russian scientists at the Mirny research station recently saved a baby emperor penguin after it became separated from its colony and risked freezing to death. In footage shared by the Russian Arctic and Antarctic Research Institute on Tuesday...
🔗 uk.news.yahoo.com/stranded-pen...
#emperorpenguin
Reposted by Peter T Fretwell
📙🐧✨ Image from Penguin Books' newsletter for the release date of “The Penguin Book of Penguins” (September 18, 2025)
@ptfretwell.bsky.social
@lisaefretwell.bsky.social
#PenguinBooksUK
Reposted by Peter T Fretwell
Our book, 'The Penguin book of penguins' will be in all good bookshops as of tomorrow! We have signed some copies for Toppings and Co in Ely, Cambridge.

We are having a book launch at London zoo on Sept 28. Come and find us in the Garden room, anytime between 12 noon and 3.30pm. No need to book!
Reposted by Peter T Fretwell
The dark patch marks the emperor penguin colony at Atka Bay. Nearby linear snow ridges are natural sastrugi, sculpted by polar winds—an image that contrasts living colonies with the harsh physical patterns of Antarctic ice.
And here's a love;y image from yesterday of Neumayer Station and the nearby emperor penguin colony at Atka Bay. Most of the recent emperor penguin documentaries have all been made from this site.
Sentinel2 14/09/2025
The emperor penguin colony at Cape Darlington, that we discovered in 2019, has moved 40 km south due to an ice shelf break off. Its current location is just south of Butler Island and it looks much better for the change of location.
Sentinel2 image 7/09/2025