Critical Zone Science & Management Course

06 May 2014 - Critical Zone Science & Management Class ENVS‐GEO‐HWR 422/522 in Fall 2014


2014 All Hands Meeting

24 Apr 2014 - Information for the 2014 All Hands Meeting for the CZO Network on 21-14 September, including registration information and abstract submission.


2014 CZOData Cyber-Seminar Series

06 Mar 2014 - Presentations describing the Integrated CZO Data system and how to use it; for interested CZO investigators, students & staff.


Buckmaster Show

22 Nov 2013 - UA College of Science ‘Superstars of Science’ series features Dr. Peter Troch, CZO Co-PI and Science Director at the UA Biosphere 2


Best student presentation award

16 Sep 2013 - Congratulations to Caitlin Orem for the best student presentation award at the Chapman conference on Post-wildfire Runoff in Estes Park, CO.


Trail of Fire Leads to Less Snow, Threatened Water Resources

26 Apr 2013 - Scientists study New Mexico's Rabbit Mountain, where forests burned in the 2011 Las Conchas fire

Reactive Transport Modeling Survey – Community Needs for Biogeochemical Studies

08 Apr 2014 - Reactive Transport Modeling Survey – Community Needs for Biogeochemical Studies The below survey is designed by Alexis Navarre-Sitchler, Kate...

“What’s so critical about the Critical Zone?” webinar

02 Apr 2014 - March 31, 2014. Dr. Enriqueta Barrera (NSF CZO program director) and Dr. Gordon Grant (USFS; CZO Steering Committee chairperson)

Career Opportunities: NSF Program Director, Hydrologic Sciences, Rotator; two (2)  Openings

12 Nov 2013 - The Division of Earth Sciences has two vacant rotator positions in the Hydrologic Sciences program of the Surface Earth Processes (SEP)...

Sustaining Earth’s Critical Zone - Report from 2011 International CZ Meeting

29 Jul 2013 - International CZ science community outlines interdisciplinary research needed to address land use changes, climate change, and biodiversity decline

Discoveries in the Critical Zone: Where Life meets Rock

11 Jul 2013 - The National Science Foundation's Cheryl Dybas recently finalized a new report entitled "Discoveries in the Critical Zone: Where Life meets...

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Fall 2014 CZO Meetings

Fall 2014 Catalina-Jemez CZO Meetings

Marshall 531.

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A Cross-scale Study of Feldspar Transformation in the Santa Catalina Mountain Critical Zone Observatory. Lybrand R.A. and Rasmussen C (2014): Procedia Earth and Planetary Science 10: 63–68


Impact of organic carbon on weathering and chemical denudation of granular basalt. Dontsova K., Zaharescu D., Henderson W., Verghese S., Perdrial N., Hunt E., and Chorover J. (2014): Geochimica et Cosmochimica Acta 139: 508-526


Estimating individual tree mid- and understory rank-size distributions from airborne laser scanning in semi-arid forests. Swetnam T.L., Falk D.A., Lynch A.M., and Yool S.R. (2014): Forest Ecology and Management 330: 271-282


Application of Metabolic Scaling Theory to reduce error in local maxima tree segmentation from aerial LiDAR. Swetnam T.L. and Falk D.A. (2014): Forest Ecology and Management 323: 158–167


Linking soil element-mass-transfer to microscale mineral weathering across a semiarid environmental gradient. Lybrand R.A. and Rasmussen C (2014): Chemical Geology 381: 26-39


What makes Darwinian hydrology "Darwinian"? Asking a different kind of question about landscapes. Harman C. and Troch P.A. (2014): Hydrology and Earth System Sciences 18: 417-433 Cross-CZO


Spatial patterns of vegetation, soils and microtopography from terrestrial laser scanning on two semi-arid hillslopes of contrasting lithology. Harman C.J., Lohse K.A., Troch P.A., Sivapalan M. (2014): Journal of Geophysical Research: Biogeosciences 119(2): 163-180 Cross-CZO


Stream water carbon controls in seasonally snow-covered mountain catchments: impact of inter-annual variability of water fluxes, catchment aspect and seasonal processes. Perdrial J.N., McIntosh J., Harpold A., Brooks P.D., Zapata-Rios X., Ray J., Meixner T., Kanduc T., Litvak M., Troch P.A., Chorover J. (2014): Biogeochemistry 118(1-3): 273-290 Cross-CZO


Bacterial composition of soils in ponderosa pine and mixed conifer forests exposed to different wildfire burn severity. Weber C.F., Lockhart J.S., Charaska E., Aho K., Lohse K.A. (2014): Soil Biology and Biochemistry 69: 242-250


Influence of snow cover duration on soil evaporation and respiration efflux in mixed-conifer ecosystems. Nelson K., Kurc S.A., John G., Minor R. and Barron-Gafford G.A. (2014): Ecohydrology 7(2): 869–880


LiDAR-derived snowpack data sets from mixed conifer forests across the Western United States. Harpold, A.A., Q. Guo, N. Molotch, P. D. Brooks, R. Bales, J.C. Fernandez-Diaz, K.N. Musselman, and T.L. Swetnam, P. Kirchner, M. Meadows, J. Flanagan, R. Lucas (2014): Water Resources Research 50(3): 2749-2755 Cross-CZO


Changes in snow accumulation and ablation following the Las Conchas Forest Fire, New Mexico, USA. Harpold A.A., Biederman J.A., Condon K., Merino M., Korgaonkar Y., Nan T., Sloat L.L., Ross M. and Brooks P.D. (2014): Ecohydrology 7(2): 440–452 Cross-CZO


Separating physical and meteorological controls of variable transit times in zero-order catchments. Heidbüchel I., Troch P.A., Lyon S.W. (2013): Water Resources Research 49 (11): 7644–7657


Coevolution of nonlinear trends in vegetation, soils, and topography with elevation and slope aspect: A case study in the sky islands of southern Arizona. Pelletier J.D., Barron-Gafford G.A., Breshears D.D., Brooks P.D., Chorover J., Durcik M., Harman C.J., Huxman T.E., Lohse K.A., Lybrand R., Meixner T., McIntosh J.C., Papuga S.A., Rasmussen C., Schaap M., Swetnam T.L., and Troch P.A. (2013): Journal of Geophysical Research: Earth Surface 118(2): 741-758


The master transit time distribution of variable flow systems. Heidbüchel I., Troch P.A., Lyon S.W., and Weiler M. (2012): Water Resources Research 48(6): W06520


Thermodynamic constraints on effective energy and mass transfer and catchment function. Rasmussen C. (2012): Hydrology and Earth System Sciences 16(3): 725-739,

Assessing five evolving microbial enzyme models against field measurements from a semiarid savannah—What are the mechanisms of soil respiration pulses?. Zhang X., Niu G.-Y., Elshall A.S., Ye M., Barron-Gafford G.A., and Pavao-Zuckerman M. (2014): Geophysical Research Letters 41

Development of topographic asymmetry: Insights from dated cinder cones in the western United States. McGuire L.A., Pelletier J.D., and Roering J.J. (2014): Journal of Geophysical Research 119(8): 1725–1750

Factoring in canopy cover heterogeneity on evapotranspiration partitioning: Beyond big-leaf surface homogeneity assumptions. Villegas J.C., Espeleta J.E., Morrison C.T., Breshears D.D., and Huxman T.E. (2014): Journal of Soil and Water Conservation 69(3): 78A-83A

Experimental Assessment of Passive Capillary Wick Sampler Suitability for Inorganic Soil Solution Constituents. Perdrial J.N., Perdrial N., Vazquez-Ortega A., Porter C., Leedy J., and Chorover J. (2014): Soil Science Society of America Journal 78(2): 486-495

Quantifying soil and critical zone variability in a forested catchment through digital soil mapping. Holleran M., Levi M., and Rasmussen C. (2014): SOIL Discuss. 1: 1-49

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