https://cryoilrj.me/aboutme daily 0.75 2022-04-08 https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/1649027866663-QLE84WLTNQ0H7HXCHFXW/headshot.jpg About me https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/5f8264b1-2354-48c0-b277-b11a6c8e549b/aurora.jpg About me https://cryoilrj.me/research daily 1.0 2022-04-08 https://cryoilrj.me/research/jarvis monthly 0.5 2022-04-08 https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/a3866fc3-31ac-4769-aa04-a09720ec1a6e/thin_sections.png Research - Jarvis Glacier, Alaska Thin sections from several ice cores, illustrating grain shape and size distribution. Fine-grained areas on the perimeter are where water seeped under the sample. Image courtesy of Chris Gerbi. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/93008518-7a52-4303-a308-3e6bec31facc/tilt_sensor.png Research - Jarvis Glacier, Alaska Simplified schematic of our novel tilt sensor, which is able to make accurate gravity, magnetic, and temperature readings while operating at temperatures as low as −20°C and in wet environments like polythermal glaciers. Multiple sensors can be connected to form a sensor network to be lowered into boreholes. Click the sensor image for more technical details. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/3e7587df-51aa-491b-9f69-8e5110b86725/jarvis_site.png Research - Jarvis Glacier, Alaska Location of our Jarvis research site in southeast Alaska, with the two borehole sites JA and JE. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/4796d07c-339c-4ec0-80e8-6bd0c2b0acb4/fieldwork.JPG Research - Jarvis Glacier, Alaska Me standing in front of the drill tent. Photo courtesy of David Clemens-Sewall. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/5fbaaf8c-4d2f-4552-8cfa-1054b243638d/heli_season2.png Research - Jarvis Glacier, Alaska Our field team (from left to right: Steve, Kate and Clara; not pictured: me as the photographer) along with our cargo and equipment waiting for the helicopter that will take us up to Jarvis for our 2018 field season. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/4947ff25-0bba-4dd7-b313-f3c9f6b71e28/redgreen_aurora.png Research - Jarvis Glacier, Alaska A stunningly beautiful green and red aurora. Photo courtesy of David Clemens-Sewall. https://cryoilrj.me/research/rutford monthly 0.5 2022-04-08 https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/bed5c051-8089-4d00-80ad-27978c28ed7a/hot_water_drilling.png Research - Rutford Ice Stream, West Antarctica Hot water drilling set up at Rutford Ice Stream in January 2019. Photo courtesy of the British Antarctic Survey. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/08aa003f-f247-469e-9356-49bbf509b6db/rutford_site.png Research - Rutford Ice Stream, West Antarctica Our Rutford research site, with several of our seismic arrays circled in green. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/6529b3f9-0911-49ba-b50f-30fb0e1973ac/seismic_signals.png Research - Rutford Ice Stream, West Antarctica The seismic signals generated in Rutford are extremely clean, with low noise levels, due to Antarctica's isolated location. https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/dabd006e-4ee3-444c-927a-b5693c7c4f02/event_catalog.png Research - Rutford Ice Stream, West Antarctica A sample microseismic event catalog, with the location of thousands of detected icequakes shown relative to Rutford's bed features and geometry. Image courtesy of Sofia-Katerina Kufner. https://cryoilrj.me/research/dml monthly 0.5 2022-04-08 https://images.squarespace-cdn.com/content/v1/62491e9face8f040288a552b/fe0e0974-551a-4dbd-8c51-251726bbd230/NPI_DML.png Research - Dronning Maud Land, Antarctica Surface features and calving-front displacements along several regions of Dronning Maud Land. (a) Western Roi Baudouin Ice Shelf, (b) Lazarevisen and Hugunisen Ice Shelves, (c) Trolltunga ice tongue, (d) Ice-rumple west of the Jutulstraumen outlet glacier, Fimbul Ice Shelf, (e) Jelbart Ice Shelf and (f) Brunt Ice Shelf. Image courtesy of Vikram Goel.