A multidisciplinary team of scientists established Christiana River Basin Critical Zone Observatory (CRB-CZO) to integrate three major processes governing the critical zone: the water cycle, the mineral cycle, and the carbon cycle. Our holistic study of the entire 1440 km2 Christina River Basin watershed temporally integrates vertical and lateral carbon, mineral and water fluxes over a range of modern and historical land uses.
01 Jan 2018 - New Opportunities for Critical Zone Science Following the June 2017 Arlington Meeting for Critical Zone Science (hosted by CZO), a white booklet...
05 Dec 2017 - Information on CZO award recipients, events, presentations, etc. at the 2017 AGU Fall Meeting.
30 Oct 2017 - Water Resources Research published a new special collection in September 2017 featuring concentration-discharge research from multiple CZOs.
21 Apr 2017 - AGU has published a collection of commentaries highlighting the important role Earth and space science research plays in society.
06 Apr 2017 - 2017 CZO Webinar Series: Critical Zone and Society.
30 Oct 2015 - St. Clair et al. suggest tectonic stresses interact with topography to influence bedrock weathering.
22 Nov 2016 - CZOs at AGU 2016: Agenda and award recipients
01 Aug 2016 - CZO REUs and RETs presented their research at the CUAHSI Biennial Colloquium, July 24-27, 2016, in Shepherdstown, West Virginia. The presentations...
04 Dec 2015 - Taking the Pulse of the Earth's Surface Systems In September of 2014, Laurel Larsen (UC Berkley), Elizabeth Hajek (Penn State), and others...
17 Aug 2015 - The Critical Zone Observatory Research Experience for Undergraduates and Research Experience for Teachers program traveled to Baltimore, Maryland to...
17 Aug 2015 - Members of AGU and the Ecological Society of America came together in their first joint event to discuss opportunities for research collaboration.
Beyond clay: towards an improved set of variables for predicting soil organic matter content. Rasmussen C., Heckman K., Wieder W.R., Keiluweit M., Lawrence C.R., Berhe A.A., Blankinship J.C., Crow S.E., Druhan J.L., Hicks Pries C.E., Marin-Spiotta E., Plante A.F., Schädel C., Schimel J.P., Sierra C.A., Thompson A., Wagai R. (2018): Biogeochemistry (online) Cross-CZO
Reviews and syntheses: on the roles trees play in building and plumbing the critical zone. Brantley, Susan L., David M. Eissenstat, Jill A. Marshall, Sarah E. Godsey, Zsuzsanna Balogh-Brunstad, Diana L. Karwan, Shirley A. Papuga, Joshua Roering, Todd E. Dawson, Jaivime Evaristo, Oliver Chadwick, Jeffrey J. McDonnell, Kathleen C. Weathers (2017): Biogeosciences, 14, 5115-5142 Cross-CZO National
Variation of organic matter quantity and quality in streams at Critical Zone Observatory watersheds. Miller, Matthew P., Boyer, Elizabeth W., McKnight, Diane M., Brown, Michael G., Gabor, Rachel S., Hunsaker, Carolyn T., Iavorivska, Lidiia, Inamdar, Shreeram, Johnson, Dale W., Kaplan, Louis A., Lin, Henry, McDowell, William H., Perdrial, Julia N. (2016): Water Resources Research, 52 (10): 8202–8216 Cross-CZO
Geophysical imaging reveals topographic stress control of bedrock weathering. St. Clair, J., S. Moon, W. S. Holbrook, J. T. Perron, C. S. Riebe, S. J. Martel, B. Carr, C. Harman, K. Singha, D. deB. Richter (2015): Science, 30 October 2015, Vol. 350, no. 6260, pp. 534-538 Cross-CZO National
Hydrologic dynamics and geochemical responses within a floodplain aquifer and hyporheic zone during Hurricane Sandy. Sawyer, A.H., L.A. Kaplan, O. Lazareva, and H.A. Michael (2014): Water Resources Research, 50 (6): 4877–4892
Riverine coupling of biogeochemical cycles between land, oceans, and atmosphere. Aufdenkampe, A. K., Mayorga, E., Raymond, P. A., Melack, J. M., Doney, S. C., Alin, S. R., Aalto, R. E., and Yoo, K. (2011): Frontiers in Ecology and the Environment 9:53-60.
Chapter 2 – The Role of Critical Zone Observatories in Critical Zone Science. White T., Brantley S., Banwart S., Chorover J., Dietrich W., Derry L., Lohse K., Anderson S., Aufdendkampe A., Bales R., Kumar P., Richter D., McDowell B. (2015): Developments in Earth Surface Processes 19: 15–78 Cross-CZO National
Laser vision: lidar as a transformative tool to advance critical zone science. Harpold, A. A., Marshall, J. A., Lyon, S. W., Barnhart, T. B., Fisher, B. A., Donovan, M., Brubaker, K. M., Crosby, C. J., Glenn, N. F., Glennie, C. L., Kirchner, P. B., Lam, N., Mankoff, K. D., McCreight, J. L., Molotch, N. P., Musselman, K. N., Pelletier, J., Russo, T., Sangireddy, H., Sjöberg, Y., Swetnam, T., and West, N. (2015): Hydrol. Earth Syst. Sci., 19, 2881-2897 Cross-CZO National
Run-of-river impoundments pass bed material and establish equilibrium bed morphology while remaining largely unfilled with sediment in Northern Delaware. Pearson, A.J., and Pizzuto, J.E. (2015): Geomorphology
Soil moisture response to snowmelt timing in mixed-conifer subalpine forests. Harpold A. A., Molotch N. P., Musselman K. N., Bales R. C., Kirchner P. B., Litvak M. and Brooks P. D. (2015): Hydrological Processes 29(12): 2782–2798 Cross-CZO
The Geochemical Transformation of Soils by Agriculture and Its Dependence on Soil Erosion: an Application of Geochemical Mass Balance Approach. Yoo, K., B. Wenell, J. Ji, A. Aufdenkampe, J. Marquard, J. Klaminder (2015): Science of the Total Environment
Nutrient spiraling and transport in streams -- The importance of instream biological processes to nutrient dynamics in streams. Webster, J. R., Newbold, J. D. and Laurence, L. (2015): In Jones, J.W., and Stanley, E. H., editors. Streams Ecosystems in a Changing Environment, Elsevier. ISBN: 9780124058903
Beryllium-7 wet deposition variation with storm height, synoptic classification, and tree canopy state in the mid-Atlantic USA. Karwan, D.L, C.M. Siegert, D.F. Levia, J.E. Pizzuto, A.K Aufdenkampe (2015): Hydrological Processes