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天美影视传媒

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The big picture

In addition to securing microscopic evidence from the world鈥檚 chilliest climes, Brad Markle uses his artistic eye to capture photographs of vast landscapes.

Dare to do

Standing outside of his temporary classroom and laboratory overlooking Greenland鈥檚 Disko Bay, Brad Markle breathes in the big picture. The big picture is something that鈥檚 always on his mind, which is reflected in both his art and science. As a photographer, he captures sweeping scenes, from giant, rippling cloud masses and never-ending skies, to massive, bobbing icebergs in a vast ocean. As a scientist who studies paleoclimatology, he asks questions on a sweeping scale to untangle the complexities of the Earth鈥檚 climate history over millennia.

Brad Markle

Brad Markle, Ph.D. candidate


Area of research: Glaciology

Most recently: Markle contributed to a multi-institutional that demonstrates the link between sudden warming events in Greenland鈥檚 past and corresponding periods of cooling in Antarctica. Crucial to making this connection, which spans thousands of miles and tens of thousands of years, were precise analyses of oxygen molecules from miles beneath the surface of Antarctic ice.

Markle, who is pursuing a Ph.D. in the College of the Environment鈥檚 Department of Earth and Space Sciences, studies the West Antarctic Ice Sheet (WAIS) Divide, a U.S.-led deep ice-coring project funded by the National Science Foundation. He sifts through 70,000 years of climate data locked within ice core samples to unearth signals and indicators related to a changing climate over time. In doing so, he can decipher likely scenarios of change that predate any potential human-made impacts and inform our understanding of future climate trends and events.

But this isn鈥檛 a project that any one scientist can tackle alone. Researchers across the globe are working in tandem to analyze and interpret various data from the WAIS Divide. Markle, a native Oregonian, is one of those scientists. He chose to pursue his Ph.D. at the College of the Environment in part because it houses two world-class departments, Earth and Space Sciences and Atmospheric Sciences. The departments sit next to each other physically, and researchers are encouraged to extend the scope of their knowledge into other disciplines. For Markle and his faculty advisor, Professor Eric Steig, thinking outside of their disciplinary silos is hugely beneficial for furthering their work and expanding their network of scientists beyond any one program at the UW.

Photo gallery

Over the past several years, Brad Markle鈥檚 research has taken him to some of the world鈥檚 coldest places 鈥� and most beautiful, provided they鈥檙e not covered in clouds.

Streams on ice? Yep. For one study, Markle measured changes in water flow on top of the Gilkey Glacier on the Juneau Icefield. He studied here one summer as an undergraduate and returns to teach regularly.
Students measure scallops in the ice under the Llewellyn Glacier on the Juneau Icefield. Markle, there as a guide and teacher, also served as an impromptu photographer. There is a very active river network under 鈥� and inside 鈥� many glaciers, and the cave completely flooded a day later.
While spending several weeks on the Juneau Icefield, traversing from camp to camp, Markle and his students had seen nothing but snow, rocks, blue sky and clouds. Near the end of the summer, they crossed a divide and passed through a patch of wildflowers. 鈥淚t was a pretty wild moment for the senses,鈥� says Markle.
Markle recently worked with a team of researchers from the UW 鈥� and across the country 鈥� on the West Antarctic Ice Sheet (WAIS) Divide ice core project, in which the UW played a major role.
Markle and his fellow researchers called this camp on the WAIS Divide home. What is it like to live on a remote ice sheet for two months? 鈥淚t鈥檚 essentially flat whiteness forever, white to the horizon in all directions,鈥� says Markle. 鈥淭here鈥檚 24 hours of daylight in the summer. It鈥檚 otherworldly.鈥�
Markle has seen his share of nasty storms, especially in Antarctica, where enduring savage winds is often just a part of life.
Last summer, Markle traveled to Greenland as a student in an Advanced Climate Dynamics Course (ACDC) 鈥� organized by the Bjerknes Centre for Climate Research at the University of Bergen along with the UW and Massachusetts Institute of Technology. Here, while on a hike to look at the ice fjord of Jacobshavn Glacier, students are joined by local sled dogs.
ACDC students watch the northern lights at the Arctic Research Station in Disko Bay, Greenland.
On his way back from Greenland, Markle stopped over in Iceland for a weeklong backpacking trip and snapped this shot of 脕lftavatn Lake.