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<channel>
	<title>Elizabeth Case</title>
	<link>https://elizabethcase.space</link>
	<description>Elizabeth Case</description>
	<pubDate>Thu, 04 Jan 2024 15:50:44 +0000</pubDate>
	<generator>https://elizabethcase.space</generator>
	<language>en</language>
	
		
	<item>
		<title>Reading Home</title>
				
		<link>https://elizabethcase.space/Reading-Home</link>

		<pubDate>Thu, 04 Jan 2024 15:49:47 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/Reading-Home</guid>

		<description>Currently...
The Odyssey - Homer (Emily Wilson’s translation)
The City The City&#38;nbsp;- China Mieville
︎The Power Broker - Robert Caro
2024 Reading List
2023 Reading List
Bookshelf
</description>
		
	</item>
		
		
	<item>
		<title>2024 Reading List</title>
				
		<link>https://elizabethcase.space/2024-Reading-List</link>

		<pubDate>Thu, 04 Jan 2024 15:48:57 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/2024-Reading-List</guid>

		<description>2024 Reading List
January
︎Provenance Ann Leckie 

︎The Empire of Gold S. A. Chakraborty 
The Deluge Stephen Markley (2/5) - terrible book to read while writing a thesis on glaciers and ice sheets; resented how he portrays the life of scientists; the desperation and movements feel relatively fully realized, but odd how little of the rest of the world plays into the book. i wouldn’t read it again, or necessarily recommend it. but a useful work of climate fiction.

February
︎Translation State Ann Leckie 

︎Ancillary Mercy&#38;nbsp;Ann Leckie 
American War Omar El Akkad (3.5/5) - while the future itself feels unlikely, the characters and focus is brutal and thorough, chilling and fully humanized&#38;nbsp;
March
Martyr! Kaveh Akbar (2/5) - sort of a quintissential first novel, some gorgeous language, a few thouroughly realized characters, but stilted in its portrayal of parenthood, and many times the characterization felt awkward through a sort of arbitrary addition of traits, stated but never played out, or added to make the character seem more interesting. kind of a predictable plot. loved the last chapter, and want to know when in the process it was written.
The Left Hand of Darkness Ursula K. Le Guin (4/5) - second or third time reading, that, along with moving to the Netherlands as an immigrant and watching Shogun, make for an incredible reflection on identity, alienation, assimilation, language and translation, love, and culture


April
The Tale of Genji Murasaki Shikibu (4/5) - the abridged version, translated by Edward Seidensticker

May
Frogs Mo Yan (4/5)
Windup Girl - Paolo Bacigalupi (3/5)
when I sing, mountains dance Irene Solá (5/5)
JuneGiovanni’s Room James Baldwin (3/5)
JulyThe Door - Magda Szabao (4/5)Essays II - Lydia Davis

︎Miracle of Mindfulness Thích Nhất Hạnh (5/5)
August
Circe Madeline Miller (3/5)Maus Art Spiegelman (4/5)
Man’s Search for Meaning - Viktor Frankl (5/5)
SeptemberGreek Lessons Han Kang (?/5)</description>
		
	</item>
		
		
	<item>
		<title>2023 Reading List</title>
				
		<link>https://elizabethcase.space/2023-Reading-List</link>

		<pubDate>Sun, 11 Jun 2023 03:19:58 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/2023-Reading-List</guid>

		<description>2023 Reading List
January
Pegasus in Flight Anne Mcaffery&#38;nbsp;(0/5) - what a waste

Spirit and Stone Marion Boatwright&#38;nbsp;(3/5) 
Fevered Star Rebecca Roanhorse (2/5)





February
The View From the Seventh Layer&#38;nbsp;Kevin Brockmeier (3/5)&#38;nbsp;

Babel RF Kuang&#38;nbsp;(4/5)
How to Loiter in a Turf War Coco Solid&#38;nbsp;(4/5)


March











Story of a Brief Marriage Anuk Arudpragasm&#38;nbsp;(5/5)

The Unbroken CL Clark&#38;nbsp;(3/5)
The Great Derangement Amitav Ghosh&#38;nbsp;(3/5) 
Amsterdam: A History of the World’s Most Liberal City Russell Shorto&#38;nbsp;(3/5)




April
A Closed and Common Orbit Becky Chambers&#38;nbsp;(3/5)&#38;nbsp;

To Be Taught, if Fortunate Becky Chambers&#38;nbsp;(4/5)

May
Calamaties Renee Gladman&#38;nbsp;(4/5) - whew !!&#38;nbsp;

Ordinairy Notes Christina Sharpe&#38;nbsp;(4/5) - *and* the formatting *chef’s kiss*
June
Akata Warrior Nnedi Okorafor&#38;nbsp;(3/5)

My Volcano John Elizabeth Stintzi&#38;nbsp;(2/5 with a few sections of 4/5)
July
The Wind’s Twelve Quarters Ursula K. LeGuin (2/5) - love UKLG but this was not her strongestLuster&#38;nbsp;Raven Leilani&#38;nbsp;(2/5 with some of the writing 4/5) - willing to bet her next book is going be 5/5
August
A Painter of Our Time John Berger (4/5) - a gorgeous and painful read about art, hope, loneliness, and purpose; the format would be trite if it wasn’t so effective
Last Notes Granta, edited by Sigrid Rausing - especially loved Cairo Song by Wiam El-Tamami
How It Feels to Float&#38;nbsp;Helena Fox (3/5) - devoured in a night; one of the only books I've ever read that adequately describes dissociation


September
The Amazing Adventures of Kavalier &#38;amp; Clay Michael Chabon (4/5) - historical detail so exact I found I couldn’t tell the difference between reality and fiction
︎Beowolf: A New Translation Maria Dahvana Headley (2/5)- maybe this shouldn’t have been my first introduction to beowolf. while i loved her text about her translation choices, i personally found some of the modernisms to be distracting to the point of triteness (”broooo”)

The Namesake  Jhumpa Lahiri (3.5/5)- I have a feeling this is one I’ll have to let simmer and return to. some of the chapters I loved. Her characters are seamless. everyone’s motivations as clear or as opaque as any living person, always with a reason or a context. I felt Sonia was sold a little short in the telling and could have been given more depth without taking up more space.

Lessons in Chemistry Bonnie Garmus&#38;nbsp;(1.5/5)  - just... so over the top... kept being taken out of time by conversations and word choice... clear the author didn’t have any sense of what scientific research actually entailed... a quick read but also could have been cut by a third and tightened significantly

Nona the Ninth Tasmyn Muir&#38;nbsp;(4/5)  - this way exceeded my expectations. loved the worldbuilding. masterfully done ‘amnesia’. I loved Nona’s point of view and Muir’s description of her innocence and love without any pedantry, pity, or simpleness. john’s dreams were a little over the top for me.&#38;nbsp;October
The Hurricane Wars&#38;nbsp;Thea Guanzon&#38;nbsp;(2/5) - needed a fun, easy read for my honeymoon. this fit the bill! a debut for sure - lots to tighten - but fun world building︎Agency William Gibson (2/5) - just a redux of the Peripheral
Camp Zero&#38;nbsp;Michelle Min Sterling&#38;nbsp;(2/5) - there seems to be this trend in cli-fi right now where novels don’t get the editing they need. This includes poorly researched descriptions of science-related topics—e.g., the meteorologist gets a message titled “Absolute Zero” and makes a big deal of how that term is only used by other meteorologists, even though Kelvin is used across most scientific disciplines. The haracters felt loose, the structure felt haphazard. It’s a bummer! Camp Zero had an interesting premise and some exciting points of view; with more editing, it could have been fantastic, instead, it was middling and disengaged.
November
︎Old Path White Clouds Thich Nhat Hanh&#38;nbsp;- I listened to this over the course of many months, on late night walks with my dog. I finished it just after she passed. No way to rate this, really. Peaceful and meditative, this relates the mostly mytholigized life of the Buddha, teaching, of course, as he livesSatanic Verses&#38;nbsp;Salman Rushdie&#38;nbsp;(5/5) - immediately began rereading it, perhaps a first, here are some useful notes to have alongside.

December

Snake Agent&#38;nbsp;Liz Williams (2/5) - read while isolating wtih Covid. superb world building and fun heaven/earth/hell relations! everything else was just okayAnicllary Justice&#38;nbsp;Ann Leckie&#38;nbsp;(4/5) - a political and nuanced work of science fiction that takes place mostly internaly and through the memories of an AI locked into a single body. Immediately pops to the top of my sci-fi recommendation list, with .</description>
		
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	<item>
		<title>Bookshelf</title>
				
		<link>https://elizabethcase.space/Bookshelf</link>

		<pubDate>Thu, 04 Jan 2024 15:50:44 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/Bookshelf</guid>

		<description>Bookshelf
a forever list of books I want to read, have read, or have started but are not currently working on, some of which I own, in no order at all


	Seiobo There Below - Lásló Krasznahorkai 
Goldfish and Concrete - Maartje Wortel
Well Then There Now - Juliana Spahr
Gitanjali - Rabindranath Tagore
Snow Country - Yasunari Kawabata
Rashoman and Other Stories - Ryūnosuke Akutagawa
The Storyteller - Walter Benjamin
Sound and Sentiment - Steven Feld
Brief History of Seven Killings - Marlon James
The Suicide Museum - Ariel Dorfman
* Ways of Seeing - John Berger
The Employees - Olga Ravn
Geisha in Rivalry - Nagai Kafu
Essays One - Lydia Davis
Solenoid - Mircea Cărtărescu
*Staying with the Trouble - Donna Haraway
Facing Gaia - Bruno Latour
Breasts and Eggs - Mieko Kawakami
Black Reconstruction in America - W.E.B. Du Bois
Foucalt’s Pendulum - Umberto Eco
A Brief History of Seven Killings - Marlon James
*Teaching to Transgress - bell hooks
*Climate Change and the New Polar Aesthetics - Lisa E. Bloom
War in the Land of Egypt - Yusuf Al-Qa’id
A Captive Spirit: Selected Poems - Marina Tsvetaeva
* Working - Studs Terkel
* The Crying Book - Heather Christle
On Ugliness - Umberto Eco
*Infowhelm - Heather Houser*Cosmicomics - Italo Calvino
* The Monkey’s Wrench - Primo Levi
* The Living - Annie Dillard
Arctic Dreams - Barry Lopez
* The Name of the Rose - Umberto Eco
*︎The Year of Magical Thinking - Joan Didion*The Human Argument - Agnes Denes
* Event Factory - Renee Gladman
* Life with Picasso - Françoise Gilot
* Essays Two - Lydia Davis



*read pieces of, or read long ago
</description>
		
	</item>
		
		
	<item>
		<title>About</title>
				
		<link>https://elizabethcase.space/About</link>

		<pubDate>Thu, 29 Sep 2022 16:22:32 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/About</guid>

		<description>
	
	
	&#60;img width="7008" height="4672" width_o="7008" height_o="4672" data-src="https://freight.cargo.site/t/original/i/12b4ff285893e5c481e9f093ec0c27475034ab0568ca5dbe765343ce87cb8d8d/DSC05895.JPG" data-mid="231569295" border="0" data-scale="100" src="https://freight.cargo.site/w/1000/i/12b4ff285893e5c481e9f093ec0c27475034ab0568ca5dbe765343ce87cb8d8d/DSC05895.JPG" /&#62;

	










I am a genderfluid scientist, writer, and artist living1 between glaciated, deglaciated, and flood-prone landscapes. As a glaciologist, I study how ice forms, flows2, and disappears3 using radar, satellites, computational models, and historical records. As an artist and writer, I am interested in how intra-action and diffraction—the reading and doing of disciplines through each other—prompts different lines of understanding, connection, or response than their doing alone. I am motivated by a deep conviction that holistic intra-engagement between the arts, humanities, social sciences, and physical sciences is required to respond to the hyper-faceted crises of our time.I am currently a postodoctoral researcher at IMAU (Utrecht University) in the Netherlands. A copy of my PhD thesis, Ice Formation, Deformation, and Disappearance, can be found here. I have worked on and with glaciers in Alaska, Wyoming, and Antarctica.I write a newsletter called Process Pending about art-science, academia, &#38;amp; glaciology and co-founded an art-science collaboration called Glacial Hauntologies. I am actively seeking further scientific and artistic collaborations that work to dissolve boundaries between disciplines. If you’re looking for an expert on glaciers, polar-related climate-crisis impacts, or scientific context for art related to ice, I am available for freelance work in Europe and the U.S. I have advised on glacier-related short films, reviewed books related to Antarctica, and written essays for polar-related art exhibitions. My CV can be found here.

	
Fragments of Knowing

	
adapted from Katherine McKittrick, irregularly updated, these objects, references, readings, poems, images, and notes are temporaly situated, a way of remembering process, conveying how knowledge and learning are knotted and cyclical, what’s currently informing or inspiring my thinking, and/or what I am currently thinking about or making


	
&#60;img width="668" height="836" width_o="668" height_o="836" data-src="https://freight.cargo.site/t/original/i/4f4059afa4d3efd35261800591bf25120010e2457c2beda228638f5a116dc37b/stoned_moon_rauschenberg.jpg" data-mid="196849358" border="0"  src="https://freight.cargo.site/w/668/i/4f4059afa4d3efd35261800591bf25120010e2457c2beda228638f5a116dc37b/stoned_moon_rauschenberg.jpg" /&#62;
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</description>
		
	</item>
		
		
	<item>
		<title>ApRES on Thwaites Glacier</title>
				
		<link>https://elizabethcase.space/ApRES-on-Thwaites-Glacier</link>

		<pubDate>Tue, 07 Feb 2023 03:36:03 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/ApRES-on-Thwaites-Glacier</guid>

		<description>
	

ApRES on Thwaites Glacier



	&#60;img width="1749" height="1129" width_o="1749" height_o="1129" data-src="https://freight.cargo.site/t/original/i/f2b2bf2aa413bfa09f6f79b338feade620af10853aaf7cec32fa4bd7fc9da97c/thwaites_map.png" data-mid="181255560" border="0" data-scale="95" alt="A map of ApRES point and polarmetric sites along Thwaites Glacier, showing our traverse route for the 2022-23 field season." data-caption="A map of ApRES point and polarmetric sites along Thwaites Glacier, showing our traverse route for the 2022-23 field season." src="https://freight.cargo.site/w/1000/i/f2b2bf2aa413bfa09f6f79b338feade620af10853aaf7cec32fa4bd7fc9da97c/thwaites_map.png" /&#62;
	Thwaites is one of Antarctica’s most rapidly changing glaciers, losing mass (ice) at a rate of ~50 gigatons per year. In 2017, the International Thwaites Glacier Consortium began, bringing together 8 project teams across disciplines and countries to study the past, present, and future of this region. 
In 2022-2023, as part of the G.H.O.S.T. team, I took ~250 phase-sensitive radar (ApRES) measurements along a 200 km transect running up the center of Thwaites. Over the course of 11 working days, we traveled by pisten bully and skidoo upglacier to obtain point and polarmetric ApRES measurements.


	Collaborators: Andrew Hoffman, Knut Christianson, Florian Koch, Ole Zeising, Catrin Thomas, Peter Young, Dave Jamison, Louise Borthwick, Rebecca Pearce, Jonny Kingslake, and the rest of the G.H.O.S.T. team

	
	

&#60;img width="691" height="66" width_o="691" height_o="66" data-src="https://freight.cargo.site/t/original/i/6ab5deffadc693dc5b0dd71a3c78332dad301aca5a1dc70679ca493ee905b5de/apres-diagram.png" data-mid="181255554" border="0" data-scale="100" src="https://freight.cargo.site/w/691/i/6ab5deffadc693dc5b0dd71a3c78332dad301aca5a1dc70679ca493ee905b5de/apres-diagram.png" /&#62;&#60;img width="874" height="179" width_o="874" height_o="179" data-src="https://freight.cargo.site/t/original/i/246bbb0ab68d033e87914300eff86a15d7e11b4c49770c589900454f4fe69af3/apres-diagram-top.png" data-mid="181255555" border="0" data-scale="85" src="https://freight.cargo.site/w/874/i/246bbb0ab68d033e87914300eff86a15d7e11b4c49770c589900454f4fe69af3/apres-diagram-top.png" /&#62;


	
	Point measurements, repeated from one year to the next, allow us to calculate the englacial strain rate. The englacial strain rate tells us how the glacier is stretching or squashing in the vertical, which gives us some information about how it is responding to stresses like bed topography. We will repeat the first season’s point measurements in 2023-2024.

	
	
&#60;img width="497" height="387" width_o="497" height_o="387" data-src="https://freight.cargo.site/t/original/i/2ec9ca6bbd3cfa067f26ea0f0a0d35aa1c3875ed35354e85c20feb327252430d/apres-polarmetric.png" data-mid="181255558" border="0"  src="https://freight.cargo.site/w/497/i/2ec9ca6bbd3cfa067f26ea0f0a0d35aa1c3875ed35354e85c20feb327252430d/apres-polarmetric.png" /&#62;
	
	Polarmetric measurements show us the ice fabric. A glacier is made up of ice crystals, water molecules frozen into a hexagonal crystal lattice. As the glacier undergoes various stresses - gravity pulling it down, snow falling on top - the ice crystals rotate in response. The bulk orientation of these ice crystals is called the ice fabric. The ice fabric records the history of stress undergone by the ice, and affects the ice’s current visocsity (how easily it flows given a force in a particular direction) and permittivity (how easily the ice allows radio waves to pass). By turning the antennas to send out polarized waves along orthogonal planes, we can reconstruct the ice fabric, which we can use to inform glacier models.


	
	
&#60;img width="687" height="264" width_o="687" height_o="264" data-src="https://freight.cargo.site/t/original/i/b1586915c35b26ac277dc21a1725b2dd83f2559364ad6307d5e5677fc950852b/apres-continuous.png" data-mid="181255553" border="0"  src="https://freight.cargo.site/w/687/i/b1586915c35b26ac277dc21a1725b2dd83f2559364ad6307d5e5677fc950852b/apres-continuous.png" /&#62;
	
	Continuous measurements require the ApRES to be left for extended periods, and allow us to measure how englacial strain rates (including firn densification) and subglacial conditions change over time.&#38;nbsp; In collaboration with Knut Christianson and Andrew Hoffman, we buried two ApRES over Subglacial Lake 142 and a third at Lower Thwaites Camp, and will collect them in the 2023-24 season.


	
	


	
&#60;img width="3520" height="2344" width_o="3520" height_o="2344" data-src="https://freight.cargo.site/t/original/i/afa7481ad08d293d812f8faf590198232068d39630a3bf445881332893ef13ed/ECH_florian_apre8-ole-zeisung-small.png" data-mid="181255674" border="0" alt="Florian Koch and I set up an ApRES near Upper Thwaites Camp in Dec 2022." data-caption="Florian Koch and I set up an ApRES near Upper Thwaites Camp in Dec 2022." src="https://freight.cargo.site/w/1000/i/afa7481ad08d293d812f8faf590198232068d39630a3bf445881332893ef13ed/ECH_florian_apre8-ole-zeisung-small.png" /&#62;
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&#60;img width="2002" height="1502" width_o="2002" height_o="1502" data-src="https://freight.cargo.site/t/original/i/d6919baf0565d05600b38fe9c479f65e914ce1d3841bd0fb27a817356d416f54/apres-skidoo.png" data-mid="181255559" border="0"  src="https://freight.cargo.site/w/1000/i/d6919baf0565d05600b38fe9c479f65e914ce1d3841bd0fb27a817356d416f54/apres-skidoo.png" /&#62;
&#60;img width="1024" height="768" width_o="1024" height_o="768" data-src="https://freight.cargo.site/t/original/i/fdb93cd215d57cd92e14f81a6d7f21f55b36f3c367cebde6b0f4b3a785c3fff2/E03FF356-7880-4EC5-BBC0-C08C8287A68B_1_105_c.jpeg" data-mid="181665106" border="0"  src="https://freight.cargo.site/w/1000/i/fdb93cd215d57cd92e14f81a6d7f21f55b36f3c367cebde6b0f4b3a785c3fff2/E03FF356-7880-4EC5-BBC0-C08C8287A68B_1_105_c.jpeg" /&#62;
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</description>
		
	</item>
		
		
	<item>
		<title>Glacial Change in Grand Teton National Park</title>
				
		<link>https://elizabethcase.space/Glacial-Change-in-Grand-Teton-National-Park</link>

		<pubDate>Tue, 07 Feb 2023 03:33:02 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/Glacial-Change-in-Grand-Teton-National-Park</guid>

		<description>

Glacial Change in Grand Teton National Park


	&#60;img width="768" height="1024" width_o="768" height_o="1024" data-src="https://freight.cargo.site/t/original/i/430752e3e6bf5cac4618a9048c889cea3e05a156411689f077185231d2c8d116/2F1A69D2-185E-4D79-A8D8-EE494A9BE573_1_105_c.jpeg" data-mid="181631766" border="0" data-scale="85" src="https://freight.cargo.site/w/768/i/430752e3e6bf5cac4618a9048c889cea3e05a156411689f077185231d2c8d116/2F1A69D2-185E-4D79-A8D8-EE494A9BE573_1_105_c.jpeg" /&#62;
	In northwestern Wyoming, the Grand Teton mountain range rises majestically out of Jackson Valley. Its iconic landscape of jagged peaks and gentle valleys has been sculpted by glaciers over hundreds of thousands of years. I fell in love with the Tetons when we arrived there by bicycle as part of the 2015 cross-country Cycle for Science tour. In 2021, I burned out from the pandemic and my Ph.D., I took six months off to work as a Scientist-in-Parks fellow.&#38;nbsp;
That summer, I joined the physical science team and traveled throughout the park, studying the glaciers and downstream water quality through a ground-based monitoring program. This work was eventually folded into my Ph.D., and using in situ data collected by the park, historical imagery, LIDAR, and modeling, I examine deglaciation in the Teton range since the Little Ice Age. Teton’s thirteen glaciers are all in decline, rapidly melting and out of equilibrium. Since 1967, the park has lost 58% of its glacier ice extent, and two glaciers (Petersen and Teepe) have almost entirely disappeared.

	
&#60;img width="1024" height="768" width_o="1024" height_o="768" data-src="https://freight.cargo.site/t/original/i/6f444e54b55f6c61db3cf1a8dd6bd0bbbd94f1eaae827dd92f7af5a4dce157fd/E5C05466-BF81-4159-8F73-0D12FC4D3745_1_105_c.jpeg" data-mid="181631738" border="0"  src="https://freight.cargo.site/w/1000/i/6f444e54b55f6c61db3cf1a8dd6bd0bbbd94f1eaae827dd92f7af5a4dce157fd/E5C05466-BF81-4159-8F73-0D12FC4D3745_1_105_c.jpeg" /&#62;
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&#60;img width="768" height="1024" width_o="768" height_o="1024" data-src="https://freight.cargo.site/t/original/i/fc4056e33150c22465a488b3267addf39f20fabe21626581e32aafa8bf74fc88/C4FFFA33-023A-4AA7-8781-DE60C39E1E79_1_105_c.jpeg" data-mid="181631753" border="0"  src="https://freight.cargo.site/w/768/i/fc4056e33150c22465a488b3267addf39f20fabe21626581e32aafa8bf74fc88/C4FFFA33-023A-4AA7-8781-DE60C39E1E79_1_105_c.jpeg" /&#62;
&#60;img width="1024" height="768" width_o="1024" height_o="768" data-src="https://freight.cargo.site/t/original/i/fd77534cfad20cbb7d8cbf9b75fabd937b202f5926e70a98ef4e213ff3a48c59/03782B4C-AC5F-4618-9FD4-F9FE955D1C6D_1_105_c.jpeg" data-mid="181631759" border="0"  src="https://freight.cargo.site/w/1000/i/fd77534cfad20cbb7d8cbf9b75fabd937b202f5926e70a98ef4e213ff3a48c59/03782B4C-AC5F-4618-9FD4-F9FE955D1C6D_1_105_c.jpeg" /&#62;
&#60;img width="1024" height="768" width_o="1024" height_o="768" data-src="https://freight.cargo.site/t/original/i/0446d945ba23b2f3a59b63f6f46e13ae4eae6a1d705900620b8e77f88fa42a67/9183AB8A-10DC-49C8-A4EA-72923415EB27_1_105_c.jpeg" data-mid="181631758" border="0"  src="https://freight.cargo.site/w/1000/i/0446d945ba23b2f3a59b63f6f46e13ae4eae6a1d705900620b8e77f88fa42a67/9183AB8A-10DC-49C8-A4EA-72923415EB27_1_105_c.jpeg" /&#62;
&#60;img width="1024" height="768" width_o="1024" height_o="768" data-src="https://freight.cargo.site/t/original/i/3357a6a39049a5f31f06c80a3f5ae69afd91e88140d623196583f028b748fef7/EA8F21C7-839A-4488-9C68-8F6B435AB641_1_105_c.jpeg" data-mid="181631757" border="0"  src="https://freight.cargo.site/w/1000/i/3357a6a39049a5f31f06c80a3f5ae69afd91e88140d623196583f028b748fef7/EA8F21C7-839A-4488-9C68-8F6B435AB641_1_105_c.jpeg" /&#62;
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&#60;img width="1024" height="768" width_o="1024" height_o="768" data-src="https://freight.cargo.site/t/original/i/5376b9f760a631c62db63e0ac27b507148f31c339a3cc54c7a5263a11a930ee1/4DEA89C1-E7BB-46B7-A24E-B1DF077D7D73_1_105_c.jpeg" data-mid="181631755" border="0"  src="https://freight.cargo.site/w/1000/i/5376b9f760a631c62db63e0ac27b507148f31c339a3cc54c7a5263a11a930ee1/4DEA89C1-E7BB-46B7-A24E-B1DF077D7D73_1_105_c.jpeg" /&#62;
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</description>
		
	</item>
		
		
	<item>
		<title>Firn Densification</title>
				
		<link>https://elizabethcase.space/Firn-Densification</link>

		<pubDate>Thu, 29 Sep 2022 17:19:03 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/Firn-Densification</guid>

		<description>
	Firn densification

	What is firn densification?

Snow that accumulates and persists for more than one year becomes firn, which can eventually densifies into glacial ice. Think about a snowball you might make - fresh snow will fall apart before it hits your target, so you have to compress the snow with your hands to compact it into something that sticks together.&#38;nbsp;
 Over time, a glacier does this to itself. As more snow accumulates, the weight of this snow presses down onto the old firn beneath it. The rate at which snow turns into glacial ice is called the densification rate, and we care about it for a few reasons.&#38;nbsp;&#60;img width="1743" height="798" width_o="1743" height_o="798" data-src="https://freight.cargo.site/t/original/i/bf880ba1f62a079408109562f03675546d6b11449200a30b2975db01680b824f/firn-densification-cores.png" data-mid="181669859" border="0" data-scale="62" src="https://freight.cargo.site/w/1000/i/bf880ba1f62a079408109562f03675546d6b11449200a30b2975db01680b824f/firn-densification-cores.png" /&#62;︎︎︎ Paleoclimate records

Firn is a porous material, meaning air can travel through connected pores between ice grains. Eventually, at depth, these pores close and the air becomes trapped in bubbles. Ice core scientists use the air in these bubbles to measure what the climate was like in the past. We need to know how long it took firn to densify to know how long that air mixed with the atmosphere.
&#38;nbsp;
︎︎︎ Satellite-measured alitmetry

Satellites measure the change in height of the ice sheet over time. This is one way we know that some glaciers in Antarctica are thinning&#38;nbsp; and losing mass. However, this change in height of the ice surface depends on many different processes. We have to account for all these in order to isolate the change due to ice thinning, and firn densification is one of them. If densification were in steady state and the same rate everywhere, we would know how to account for it. However, its dependence on accumulation rate, temperature, and grain size1, as well as wind, impurities, and water content, mean that densification rates vary in space and time.
How do we measure firn densification?
Firn densification can be measured with a variety of tools: strain gauges embedded into boreholes, gamma ray transmission, repeat measurements of optical stratigraphy, and phase-sensitive radars2, among others.
My early Ph.D. work looked at the use of autonomous phse-sensitive radio echo sounders (ApRES) to measure firn densification. Using data collected over the Korff Ice Rise, Fletcher Promontory, and Skytrain Ice Rise, we removed the strain rate contribution of horizontal ice flow to isolate the vertical strain rate due to firn compaction.&#38;nbsp;

&#60;img width="1600" height="1052" width_o="1600" height_o="1052" data-src="https://freight.cargo.site/t/original/i/46c93f10ae67537d3ac8c327813a6b407bbe475fbb5b7f1d5c4b9d4632a57765/urn_cambridge.org_id_binary_20220113013051844-0733_S0022143021000836_S0022143021000836_fig2.png" data-mid="181670766" border="0" alt="Core observations, modeled velocity and densities, and Method 1 compaction velocities. Left panels are from FP, the right panels are from SIR, top panels are compaction velocities and bottom panels are densities. In the top panels (a, b), blue squares are compaction velocities derived from pRES measurements using Method 1. Uncertainties are derived by taking into account the signal-to-noise ratio of each englacial reflector used to computed vertical velocities (Section 2.2) and are represented by the width of the bar symbols. Gray circles in the bottom panels are ice core-measured densities. The dashed and dotted curves show the model output (Section 2.5), where the dashed blue lines are generated from a model tuned to pRES vertical velocities, and the dotted black lines are generated from a model tuned to core densities. The gray horizontal dashed and dot-dashed lines show where core-derived densities are 550 and 830 kg m&#38;minus;3, respectively, corresponding to the compaction transition density identified by Herron and Langway (Reference Herron and Langway1980) and the lock-in density." data-caption="Core observations, modeled velocity and densities, and Method 1 compaction velocities. Left panels are from FP, the right panels are from SIR, top panels are compaction velocities and bottom panels are densities. In the top panels (a, b), blue squares are compaction velocities derived from pRES measurements using Method 1. Uncertainties are derived by taking into account the signal-to-noise ratio of each englacial reflector used to computed vertical velocities (Section 2.2) and are represented by the width of the bar symbols. Gray circles in the bottom panels are ice core-measured densities. The dashed and dotted curves show the model output (Section 2.5), where the dashed blue lines are generated from a model tuned to pRES vertical velocities, and the dotted black lines are generated from a model tuned to core densities. The gray horizontal dashed and dot-dashed lines show where core-derived densities are 550 and 830 kg m−3, respectively, corresponding to the compaction transition density identified by Herron and Langway (Reference Herron and Langway1980) and the lock-in density." src="https://freight.cargo.site/w/1000/i/46c93f10ae67537d3ac8c327813a6b407bbe475fbb5b7f1d5c4b9d4632a57765/urn_cambridge.org_id_binary_20220113013051844-0733_S0022143021000836_S0022143021000836_fig2.png" /&#62;
&#60;img width="1600" height="1078" width_o="1600" height_o="1078" data-src="https://freight.cargo.site/t/original/i/8b743330868ccef829c74642777d64345a5905eaa14915eef2ce3619373176a0/urn_cambridge.org_id_binary_20220113013051844-0733_S0022143021000836_S0022143021000836_fig4.png" data-mid="181670816" border="0" alt="Spatial variability of total velocities and compaction velocities at SIR and KIR obtained using Method 2. Method 2 can generate compaction velocity profiles at locations where we lack coincident density profiles across two transects, a northeastern&#38;ndash;southwestern transect on KIR (black-to-blue gradient, Fig. 1b) and a north-to-south transect on SIR (black-to-blue gradient, Fig. 1c). Panels a and b show the total vertical velocity measured by each of the pRES points along KIR and SIR, respectively. Panels c and d show the firn compaction velocity. Note in panel a at KIR, the eastern flank (light blue) generally flows faster than the western flank, but that this trend is not evident in the compaction velocity estimates (c). The triangle to the right of the colorbar indicates the orientation of the transects in Figures 1b, c." data-caption="Spatial variability of total velocities and compaction velocities at SIR and KIR obtained using Method 2. Method 2 can generate compaction velocity profiles at locations where we lack coincident density profiles across two transects, a northeastern–southwestern transect on KIR (black-to-blue gradient, Fig. 1b) and a north-to-south transect on SIR (black-to-blue gradient, Fig. 1c). Panels a and b show the total vertical velocity measured by each of the pRES points along KIR and SIR, respectively. Panels c and d show the firn compaction velocity. Note in panel a at KIR, the eastern flank (light blue) generally flows faster than the western flank, but that this trend is not evident in the compaction velocity estimates (c). The triangle to the right of the colorbar indicates the orientation of the transects in Figures 1b, c." src="https://freight.cargo.site/w/1000/i/8b743330868ccef829c74642777d64345a5905eaa14915eef2ce3619373176a0/urn_cambridge.org_id_binary_20220113013051844-0733_S0022143021000836_S0022143021000836_fig4.png" /&#62;



	1&#38;nbsp; &#38;nbsp;  Kingslake J, Skarbek R, Case E, and McCarthy C (2022) “Grain-Size Evolution Controls the Accumulation Dependence of Modelled Firn Thickness.” The Cryosphere 16, no. 9, 3413–30. https://doi.org/10.5194/tc-16-3413-2022.
&#38;nbsp;
2&#38;nbsp;&#38;nbsp; &#38;nbsp;Case E and Kingslake J (2022) “Phase-Sensitive Radar as a Tool for Measuring Firn Compaction.” Journal of Glaciology 68, no. 267, 139–52. https://doi.org/10.1017/jog.2021.83.
 
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		<title>Geosciences Resources</title>
				
		<link>https://elizabethcase.space/Geosciences-Resources</link>

		<pubDate>Wed, 26 Jul 2023 17:18:15 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/Geosciences-Resources</guid>

		<description>a compilation of geoscience resources i have found useful over the course of my PhD.
geo processing in python

PythiaPangeoPython GIS&#38;nbsp;AutoGIS 2022 and&#38;nbsp;AutoGIS 2018 (University of Helsinki)Geospatial Data Analysis in Python (University of Washington)useful packages -&#38;nbsp;xdem,&#38;nbsp;rasterio,&#38;nbsp;rioxarray, geoutils, xarray,&#38;nbsp;gdal, fiona, geopandas, pygmt, shapely&#38;nbsp;
 earth science reproducible research

Research Computing in the Earth Sciences (Columbia University) and the updated textbook, Earth and Environmental Data ScienceCollaborative and Reproducible Data Science (Berkeley) - with lots more resources on the first pageResearch Software Engineering textbookCryocloud
structure-from-motion (SfM)


metashape onsite tutorialsmetashape youtube&#38;nbsp;historical structure from motion (HSFM)Geo-SfM (University of Svalbard)Geo-UAV (University of Svalbarad)&#38;nbsp;comparison of photogrammetry software
radar
radartutorial.euOpen Polar Server - radar data and processingImpDAR - open source impulse radar processingGPRPy - open source GPR processingxApRES - under construction, python-based processing of ApRES data
satellite/aerial productsPlanet Labs (usually can get through sign up as a phd student or gov’t worker)USGS Earth Explorer - for present &#38;amp; historic satellite and aerial imageryPolar Geospatial Center (can request worldview imagery with NSF grant #)


cryosphere datasets
SUMUP firn core dataset - shallow and deep firn coresPolar Geospatial Center - arctic and antarctic DEMsUSAP-DC - Antarctic data and project repositoryOpen Polar Server - radar data and processingPangea.de - earth science datasets

ice modeling

Ice Pack - flexible Python library for modeling ice flow, built on C++ and Firedrake
general cryosphere knowledge
notes from ice sheet seminar in 2022 (led by Jonny Kingslake)NASA GISS youtube - all kinds of cryosphere and sea-level-rise-related videosWAIS workshop talks - 2019,&#38;nbsp;2020, 2021, 2022, 2023EGU&#38;nbsp;talks and guidelinesSCAR Instant talks 2023 - atmosphere/ocean/ice interactions
how to make a science poster
presentation for REU students
Template Lab
Activate Your Science

writing the NSF GRFP&#38;nbsp;
acing the personal statement

machine learning

course.fast.ai - the only reason I graduated with a master’s</description>
		
	</item>
		
		
	<item>
		<title>Science Nav</title>
				
		<link>https://elizabethcase.space/Science-Nav</link>

		<pubDate>Tue, 07 Feb 2023 03:51:46 +0000</pubDate>

		<dc:creator>Elizabeth Case</dc:creator>

		<guid isPermaLink="true">https://elizabethcase.space/Science-Nav</guid>

		<description></description>
		
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