EcoClimate Lab at AGU 2015 Fall Meeting

Come check out what our lab has been up to at this year’s Fall Meeting in San Francisco!

Professor Abby Swann will present twice:

Tuesday, Dec 15 @13:40 in Moscone West 2010: “Diagnosing Drought in a Changing Climate”

Thursday, Dec 17 @9:45 in Moscone West 3011: “Land Use and climate change interactions in tropical South America”

Elizabeth Garcia presents Monday, Dec 14 @9:30 in Moscone West 2004: “Large-Scale Forest Die-off in Temperate versus Tropical Regions: Comparison of Local and Global Climate Effects”

Check out Greg and Marysa’s posters:

Marysa Lague, GC23I-1205. Tues Dec 15 from 1:40pm-6pm in Moscone South: “Progressive Mid-latitude Afforestation: Impacts on Clouds, Circulation, and the Global Energy Budget”

Greg Quetin, A33J-0307. Weds Dec 16 from 1:40pm-6 in Moscone South: “The Statistical Relationship Between Remotely Sensed Vegetation and Climate for the Last 15 years is not Reflective of the last 30 years”


Mid-laittude trees and the green Sahara!

Elephant petroglyph .. one of my favourites

Photo by Carsten ten Brink

The UW College of the Environment has issued a press release:

Demystifying lush landscapes of the ancient African Sahara

Which describes a new lab publication in Journal of Climate:

Swann, A.L.S, Fung, I.Y., Liu, Y., Chiang, J.C.H., (2014) Remote vegetation feedbacks and the mid-Holocene Green Sahara., Journal of Climate. 27(13) 4857–4870, doi: 10.1175/JCLI-D-13-00690.1

 [PDF] [JClim website]


Tree Mortality on the ground


I spent the week in New Mexico with our NSF Macrosystems Forest Mortality and Climate Team (pictured above) measuring dead trees.  And a few live trees too.

The previous week the rest of the group visited a transect of sites in Arizona. I joined them for the week in New Mexico, about an hour and a half north-east from Sevilleta field station.  Our measurements are looking at how energy fluxes between the land and the atmosphere change as forests die.  These previously established sites have been extensively hit by bark beetles, and now are comprised of a large fraction of dead Pinyon Pine.  There was also a site with “simulated” beetle kill (read: chainsaws) that was the motivation for the original experiment.  Here is one of the already existing flux towers with a freshly beetle-killed Pinyon to the left.


The group heads to Alaska next, and then to the Amazon!