Qichao Yao published the first paper from his PhD in GRL. In this paper, Qichao presents the first tree-ring based fire history for northeast China that goes back to 1774 and uses it to investigate climatic influences on past wildfire regimes. A photo of a fire-scarred sample from Qichao's study was also selected as the cover of this GRL issue. Cool stuff!
Ross Alexander successfully defended his PhD dissertation on Friday March 3. Ross’s dissertation is entitled “Determining the role of stand structure in shaping climate-growth relationships in eastern temperate forests of the US”. Congratulations, Ross!
The Trouet Lab will have a busy week at the AGU Fall meeting. Here's a chronological overview of our presentations and sessions:
8am-12.20pm poster: B11D-0489: B11D-0489 Latitudinal Gradients in Tree Ring Stable Carbon and Oxygen Isotopes Reveal Differential Climate Influences of the North American Monsoon System. (Paul Szejner et al.) Moscone South Poster Hall
8am-12.20pm poster: B11D-0497: B11D-0497 Validating the Spring Jet Stream Indices Using Extended Spring Index (SI-x) Models (Amy Hudson et al.) Moscone South Poster Hall
4.40pm: oral presentation: B14C-03 Stand structure and composition provide differential tree-ring growth signals in eastern U.S. forests (Ross Alexander et al.) Moscone West 2004
8am-12.20pm: session B21B Constraining Ecosystem Carbon Uptake and Long-Term Storage using Models and Data I Posters (David Moore and Valerie Trouet) Moscone South Poster Hall
4-6pm: session B24A Constraining Ecosystem Carbon Uptake and Long-Term Storage using Models and Data II oral session (David Moore and Valerie Trouet) Moscone West 2004
5.15pm: GC44B-06 Socio-ecological transitions trigger fire regime shifts and modulate fire-climate interactions in the Sierra Nevada, CA, 1600-2015 CE (Valerie Trouet et al.) Moscone West 3001
Our study about the impact of land-use changes - such as the mission establishment, the Gold Rush, and Smokey the Bear - on past wildfire regimes in the Sierra Nevada in California was published in PNAS today. This was the result of a collaboration with Alan Taylor (PSU), Carl Skinner, and Scott Stephens. The work was funded by the Joint Fire Science Program and the USGS Southwest Climate Science Center, amongst others. UANews wrote a press release about it.
Amy has been selected as a 2017 UA Carson Scholar. Congratulations Amy!
Valerie gave a talk on November 4 - the day that the Paris Climate Agreement entered into force - at the Kavli Frontiers in Science Symposium at the Beckman Center in Irvine, CA. She talked in the 'Causes and Consequences of Climate and Weather Extremes' session. A link to her talk will be posted here as soon as it's available.
Qichao Yao will be spending a semester of his PhD in our lab. Qichao studies historical fire-climate interactions in NE China and is visiting from the Northeast Forestry University in China.
We're now in the 2nd week of the Fall 2016 semester at UA.
Valerie is co-teaching Introduction to Dendrochronology (GEOS436A/536A) with Dr. Malcolm Hughes. Ross is in charge of the lab section of this class and is teaching 8 students how to cross-date.
Valerie is also co-teaching a Scientific Writing graduate seminar (RNR696A) with Dr. David Moore. Amongst others, we use How To Write A Lot and Deep Work as readings, which we strongly recommend to anyone striving to improve their writing productivity.
While doing fieldwork in the Pindos Mountains in Greece, Soumaya, Matt, and Valerie were involved in the sampling of Europe's oldest known living tree: a 1075-year old Bosnian pine (Pinus heldreichii). The field expeditions were led by Paul Krusic from Stockholm University and were in collaboration with Jan Esper's group at the University of Mainz.
read more about our discovery here in the Washington Post and CNN has posted a short video.
Paul Szejner published the first paper from his PhD in JGR-Biogeosciences. He and his collaborators (including Soumaya, Flurin, and Valerie) find differential climatic influences of the North American Monsoon system on tree-ring 13C and 18O.