ARCHIVED CONTENT: In December 2020, the CZO program was succeeded by the Critical Zone Collaborative Network (CZ Net) ×

Cross-CZO Studies

Summary of status and results of cross-CZO activities supported by the CZO, including working-group activities, data efforts, field and laboratory measurements, meetings and workshops, student training and post-doc mentoring, outreach, abstracts and other publications;

1) Graduate student Theodore Barnhart (mentored by Noah Molotch) is spending summer, 2015, at UC Santa Barbara to work with Christina Tague of the Southern Sierra CZO as part of a cross-CZO effort comparing snow, evapotranspiration, and streamflow data and model results at Providence Creek (SSCZO) and Como Creek (BcCZO).

Anticipated products:
A cross-­‐CZO publication examining how the sensitivity of hydrologic partitioning of snowmelt changes across sites.
A manuscript on RHESSys model calibration, and model experiments on snowmelt rate and timing.

2) Jill Marshall was awarded an NSF-Postdoctoral Fellowship, to begin in summer 2015, on “Cracking the critical zone: tree roots in fractures and hypothesized limits to bio-physical weathering –towards a mechanistic soil production law”. Jill will spend several weeks in Boulder in July 2015 as part of this project, which also connects with efforts at Eel River CZO and Southern Sierra CZO.

3) Suzanne Anderson is leading the Deep Critical Zone Salon with Sue Brantley (Penn State, Shale Hills and Luquillo CZOs), Daniella Rempe (Eel River CZO), and Nikki West (Shale Hills CZO). This cross-CZO workshop, which grew out of the Critical Zone Architecture theme breakout group meeting at the Yosemite CZO All Hands meeting in October 2014, will bring 17 researchers together representing 13 sites (8 CZO and 5 non-CZO sites). The group will meet June 14-18, 2015 at Snow Mountain Ranch, Colorado to compare data, share hypotheses for deep critical zone evolution, and begin writing paper(s?) that outline commonalities, differences, and ways forward through either modeling, filling data gaps, or analyzing existing data. This workshop is hosted by BcCZO, and funded by workshop funds within this project.

4) Noah Fierer is working microbial ecologists at other CZO sites to put together plans for cross-site research. A proposal has been submitted (led by Emma Aronson and Aaron 11 Packman) to support planning and improve the portal for sharing microbial data across CZOs.