Jessica Oster's guest appearances

Jessica Oster

Forecast: climate conversations with Michael White

Chris Field

Gavin Schmidt

Ed Hawkins

Jay Famiglietti

Josh Willis

Daniel Aldana Cohen

Rob Meyer

Greg Jones

Andrea Dutton

Gabi Hegerl

Scott St

Laura Wilcox

Kaitlin Naughten

Kim Cobb

Peter Bauer

OwlTail

https://forecastpod.files.wordpress.com/2018/12/episode_63_jessica_oster.mp3 Speleothems — stalagmites, stalactites, flowstones — are a central tool for reconstructing past hydroclimate variability. But what, really, are they recording? Jessica Oster from Vanderbilt University walks Mike through the long, incredibly long, process of permitting, extracting, transporting, sampling, analyzing, and understanding the isotopic signals encoded in these bedeviling but transporting recorders. Succeeding in the field requires incredible patience combined with the ability to think deeply about how the sparse but growing network of speleothems, combined with other hydroclimate records, can inform our understanding of past climate dynamics. And progress is happening. For example, Jessica tell Mike how she and her colleagues pulled together a sweeping collection of paleoclimate evidence to reveal how the jet stream contracted and twisted in glacial boundary conditions, rather than moving monolithically south. One gets the sense that the community is, finally, approaching a broader consensus that speleothems are recording measures of atmospheric circulation and moisture source, not a pure amount signal. Maybe the simpler explanation would have been easier to parse, but the more complex interpretation also points towards the potential for a richer understanding of past climate dynamics in a range of boundary conditions.

<a href="https://forecastpod.files.wordpress.com/2018/12/episode_63_jessica_oster.mp3" rel="nofollow" target="_blank">https://forecastpod.files.wordpress.com/2018/12/episode_63_jessica_oster.mp3</a> Speleothems — stalagmites, stalactites, flowstones — are a central tool for reconstructing past hydroclimate variability. But what, really, are they recording? <a href="https://jessica-oster.squarespace.com/" rel="noopener nofollow" target="_blank">Jessica Oster</a> from Vanderbilt University walks Mike through the long, incredibly long, process of permitting, extracting, transporting, sampling, analyzing, and understanding the isotopic signals encoded in these bedeviling but transporting recorders. Succeeding in the field requires incredible patience combined with the ability to think deeply about how the sparse but growing network of speleothems, combined with other hydroclimate records, can inform our understanding of past climate dynamics. And progress is happening. For example, Jessica tell Mike how she and her colleagues pulled together a sweeping collection of paleoclimate evidence to reveal how the jet stream contracted and twisted in glacial boundary conditions, rather than moving monolithically south. One gets the sense that the community is, finally, approaching a broader consensus that speleothems are recording measures of atmospheric circulation and moisture source, not a pure amount signal. Maybe the simpler explanation would have been easier to parse, but the more complex interpretation also points towards the potential for a richer understanding of past climate dynamics in a range of boundary conditions.

Episode 63: Jessica Oster