Kate Sherren

Landscapes - People - Global change

Tag: big data (page 1 of 2)

New paper: dykelands vs. marshes on Instagram

Clusters of landscape, cultural ecosystem services and demographics associated with Instagram images in Chen et al 2020

Clusters of landscape, cultural ecosystem services and demographics associated with Instagram images in Chen et al 2020

As decision-makers tackle the challenge of adapting Bay of Fundy dykelands to climate change, they need to understand who uses and values dykelands and salt marshes, and for what. This new paper in Ocean and Coastal ManagementComparing cultural ecosystem service delivery in dykelands and marshes using Instagram: A case of the Cornwallis (Jijuktu’kwejk) River, Nova Scotia, Canada, used four months of geocoded Instagram data to understand the cultural ecosystem service (CES) tradeoffs that might result from removing/realigning dykes and restoring salt marshes where dykelands can’t be sustained.  Dykelands provide a much wider set of CES for a wider demographic than do marshes for this set of social media users. However, a big surprise is that while salt marshes were present in many photos they were not named as such; users spoke only about the dykes and dykelands behind those marshes. As such, the marsh CES in the dataset came from visitors to an impounded freshwater wetland trail which is a local attraction walkable from the downtown centre of Kentville. Many of the messages triangulate well with the 2016 online Q survey I ran with Nova Scotians about the same topic and the paper provides another nice case study as to the utility of social media data for social impact assessment.  One of the really great things about this paper is that it is a real ‘lab’ output. The work was initiated as a follow-up to that 2016 study and to inform the new ResNet work when I knew Camille was going to be joining as an intern from AgroCampus Ouest. PhD student Yan collected a few months of Instagram posts for Camille to analyze with her help, postdoc Tuihedur helped with statistics, and then Yan picked it up again to write up after Camille went back to France. I’m proud of this paper and this collaborative team.

New paper: conceptual mapping of Instagram

The second paper from Yan Chen’s MES thesis is now out in Society and Natural Resources, Leveraging social media to understand younger people’s perceptions and use of hydroelectric energy landscapes. It is a research note demonstrating the utility of manual coding and conceptual mapping of a year of Instagram images around two hydroelectricity sites to predict how changes might affect young residents. Unlike her first thesis paper in Landscape and Urban Planning, which carried out spatial mapping of value ‘hotspots’–a method widespread in today’s growing literature on cultural ecosystem services–this paper makes statistical links between features, activities and values conveyed through Instagram. The diagrams provide insight to the lifestyle and emotions associated with different landscape features, some changeable with hydro development or removal, and informs our new work on conservation culturomics for social impact assessment. Yan continues to drive this work as an IDPhD student. Congratulations, Yan.

Yan Chen in Singapore

Yan Chen at NSF-funded workshop in Singapore, January 28-29, 2019.

Yan Chen presenting her IDPhD work at NSF-funded workshop in Singapore, January 28-29, 2019.

Yan Chen is wrapping up a few days in Singapore for the NSF-funded Research Coordination Network (RCN) in Science, Engineering and Education for Sustainability (SEES) on Putting Sustainability into Convergence: Connecting Data, People, and Systems. This international workshop has been diverse in attendees and disciplines. Yan reflected, “The most discussed question is how people from different disciplines can collaborate. There are many scholars like me, as social scientists who are using sophisticated data analysis models; while others are engineers working on social issues. We both, at a certain degree, struggle in ‘cultural shocks’ between different disciplines.” It’s been a great opportunity for her to workshop with similarly cross-cutting folks. She described her session as discussing, “data sources, sizes, validity, sharing, proxies, and so on. …. [agreeing] that data or method cannot develop only on the technologies, but has to answer certain questions. For social scientists, finding a good mechanism of data sharing or archiving may be very useful. Also, how to cope with the rapidly developing technologies will be another challenge for us.” Thanks to SSHRC for supporting Yan’s trip, via Mike Smit’s Insight Grant, on which I’m a CI, Assessing the social impacts of hydroelectricity-driven landscape changing using text, images and archives: a Big Data approach.

NOLA book serendipity

Three books from my AAG trip to New Orleans

Three books from my AAG trip to New Orleans

Bookshelf serendipity strikes again! I can’t resist telling this story, though it was awhile ago. Appropriate to the geography conference I was in town to attend, I bought a compelling atlas of New Orleans by Rebeccas Solnit and Snedeker, Unfathomable City, part of a series at UC Press, at a small bookstore behind the Cabildo. Each map and essay tells an idiosyncratic story about the place, including human and river channel migrations, social and landscape erosions, including social clubs, seafood and sex. While excellent, it wasn’t an easy one to tote in my bag for idle moments.

The ‘take a book, leave a book’ shelf at my hotel filled the gap with But What if We’re Wrong, by pop seer Chuck Klosterman (sorry Columns Hotel, I’ll leave one next time). Klosterman is talking about the same thing that I was at AAG to talk about: climax thinking. He asks how we can learn to make decisions anticipating the many ways that we might be wrong, so we don’t box ourselves in. Instead we denigrate the people who made decisions or assessments we reflect upon today as folly, but assume against evidence that we’re going to be right. There is something to be said about doubt.

Having finished both of the above, I needed another book for the flight home. During a layover in Toronto airport I bought Everybody Lies by Seth Stephens-Davidowicz. He is a computer scientist who thinks data mining has replaced social science, so a few sections (particularly the conclusion) grated, but this was a fun (and surprisingly dirty) introduction to how secondary online datasets like our Google queries help us learn what people are really thinking and feeling. I have since brought up his examples in a few social science contexts, like the energy incubator at Cornell. I’m loathe to hand it to students, given some of the icky content (people are, it turns out, gross), but as survey response rates drop, offensiphobia rules, and questions around sustainability cross the sociology/psychology boundary, such datasets may well be the only way we can really understand what kind of society we are really working with.

New Orleans in the rear view

The final of 50 parade floats in the Chalmette Irish, Italian and Isleno parade, where they not only throw beads and trinkets, but also vegetables, fruit, and here, toilet paper.

The final of 50 parade floats in the Chalmette Irish, Italian and Isleno parade, where they not only throw beads and trinkets, but also vegetables, fruit, and here, toilet paper.

It has a sprint since getting back from AAG in New Orleans. It was my first time at that epic event, spread across several downtown hotels. I was surprised to actually run into people I knew from other organizations like IASNR and topics like rangelands, ecosystem services and climate adaptation that I didn’t necessarily connect with Geography, including MES alum Paul Sylvestre, now doing a PhD at Queens. Didn’t lay eyes on my Dalhousie colleagues, however, without effort.

Geography is big enough in its traditional form, but it has expanded and become much more problem-based than the Australian Geographer’s Association meeting in 2005 after which I swore off Geography conferences (that one kept human, physical and spatial geographers in never-the-twain separate sessions irregardless of topic). Happily surprised, I attended four or five of the Climate Vulnerability and Adaptation special sessions organized by the Human Dimensions of Global Change Specialty Group, which had many highlights but particularly memorable were Hannah Gosnell’s talk on happiness and regenerative grazing (HM) in Australia, and Neil Adger’s speech after his lifetime achievement award, as well as his former postdoc Don Nelson’s moving tribute. I was pleased with the content if not the crowd size in the two sessions in which I participated, on Recycling Energy Landscapes and (via Mike Smit on our new SSHRC) in Computation for Public Engagement in Complex Problems: From Big Data, to Modeling, to Action.

Phase 3 of a 3-phase demonstration of the value of wetland buffers in protecting cities from storm action in the Cabildo Museum.

Phase 3 of a 3-phase demonstration of the value of wetland buffers in protecting cities from storm action in the Presbytere Museum.

It was grand to be back in New Orleans after 16 years, even through a deluge event with flood warnings. I was lucky to get into my old apartment which was wide open, being gutted for renovation. My old boulangerie is still there (though the fougasse is not as I recall), and the streetcars still charm. The French Quarter Festival was on – all local music – and the best food we found was offered by ex-military cajun Adam Lee out of a small pub kitchen uptown in Prytania Hall. A muffuletta sandwich from the Central Grocery, eaten in the sun in front of Jackson Square listening to a brass band, came second. Nothing else came close. Very cool to see ‘planning for water’ and the importance of wetland buffers highlighted in the Presbytere’s museum installation on Katrina.

Erstwhile Fazendeville, Chalmette Battlefield

Erstwhile Fazendeville, Chalmette Battlefield

On our last day in town we ventured east, Ubering through the Lower 9th Ward (hit hardest by Katrina) onward to Chalmette, which was having its Irish, Italian and Isleno (Canary Islander) parade (see top picture). For some reason lost to time those on floats pelt paradegoers with fruit and vegetables, as well as the usual plastic beads and trinkets. Potatoes, carrots, CABBAGES: I even saw someone holding a pineapple. We killed some time first at the Chalmette Battlefield, where American forces beat off the British in 1814. Alongside the straining levee, the Mississippi running high after the deluge, the cemetery and battlefield were very wet. Crayfish chimneys were all over the wet lawn of the former battlefield. I was saddened as much by the story of Fazendeville as by the earlier loss of life . Quoting from the plaque:

Jean Pierre Fazende, a free man of colour and New Orleans grocer, inherited land within the battlefield in 1857. After the Civil War, he divided it and sold it to freed slaves from local plantations. Eventually the community grew to more than 200 people and became known as Fazendeville. The National Park Service bought the land in 1966 after long, contentious negotiations.

Where did they move to? Mostly the New Orleans 9th Ward, that area so hard hit by Katrina. What a bad joke. The old main street is visible only as a linear depression today, but the plaque says the community still meets. Like the residents of Africville here in Halifax, or former residents of what is now the Gagetown weapons range in New Brunswick, they have reunions and otherwise somehow keep the community alive after being forcibly removed.

Chalmette Battlefield Cemetery, inundated

Chalmette Battlefield Cemetery, inundated

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