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



Undergraduate course curriculum, “Introduction to Critical Zone Science,” available free online

01 Jan 2018 - A 15-week semester-long upper-level undergraduate course curriculum entitled “Introduction to Critical Zone Science” is now available free online.


Water Resources Research Special Collection: Concentration-discharge relations in the critical zone

30 Oct 2017 - Water Resources Research published a new special collection in September 2017 featuring concentration-discharge research from multiple CZOs.

2017 CZO Webinar Series: Critical Zone and Society

06 Apr 2017 - 2017 CZO Webinar Series: Critical Zone and Society.

Eissenstat elected fellow of Ecological Society of America

14 Feb 2017 - David Eissenstat, professor of woody plant physiology in the Department of Ecosystem Science and Management, College of Agricultural Sciences, Penn...


CZOs at AGU 2016

22 Nov 2016 - CZOs at AGU 2016: Agenda and award recipients

Critical Zone Profiles - Meet the people doing CZO science (Shale Hills CZO)

26 Sep 2016 - Get a sense of the people and the work. Several members of the Shale Hills CZO are profiled here, including students and professors.

Critical Zone Profile – YUNING SHI (meteorologist, research associate)

26 Sep 2016 - Research Associate, Department of Ecosystem Science and Management, Earth and Environmental Systems Institute, The Pennsylvania State University

Critical Zone Profile – TESS RUSSO (hydrologist, assistant professor)

26 Sep 2016 - Assistant Professor; Department of Geosciences; The Pennsylvania State University

Critical Zone Profile – LILLIAN HILL (ecologist, graduate student)

26 Sep 2016 - Graduate student, Department of Ecosystem Science and Management, Pennsylvania State University

Critical Zone Profile - JOANMARIE DEL VECCHIO (geomorphologist, graduate student)

26 Sep 2016 - Graduate student, Department of Geosciences, Pennsylvania State University

Critical Zone Profile – HYOJIN KIM (geochemist, postdoctoral fellow)

26 Sep 2016 - Post-doctoral researcher; Global Institute for Water Security; Earth and Environmental Systems Institute, Pennsylvania State University

2016 CZO REUs and RETs present summer research

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...

Joanmarie Del Vecchio receives GSA Quaternary Geology and Geomorphology Division Research Award

01 Jul 2016 - Joanmarie Del Vecchio, M.S. candidate in Geosciences, has been awarded the 2016 GSA Quaternary Geology and Geomorphology Division Research...

Susan Brantley has been awarded the 2016 Wollaston Medal

11 Jun 2016 - We are proud to announce that Dr. Susan Brantley, Lead-PI of the Shale Hills CZO has been awarded the 2016 Wollaston Medal.

Critical Zone Profile - PAM SULLIVAN (hydrogeochemist, Assistant Professor)

23 Mar 2016 - Assistant Professor of ecohydrology, Department of Geography, University of Kansas


2015 CZO REUs and RETs present summer research

17 Aug 2015 - The Critical Zone Observatory Research Experience for Undergraduates and Research Experience for Teachers program traveled to Baltimore, Maryland to...

Joint AGU-ESA Event Brings Together Collaborative Networks

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.

Salon on Deep Critical Zone Architecture held June 14-18, 2015

26 Jun 2015 - An international group of 17 researchers met at Snow Mountain Ranch, Granby, Colorado for 3.5 days of presentations and discussions on the nature of...

Katie Gaines recognized with Intercollege Graduate Student Outreach Achievement Award

03 Apr 2015 - Gaines, nearing completion of year five in the Ecology graduate program, has been awarded the Intercollege Graduate Student Outreach Achievement...


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.

“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)


CZO welcomes new team member, Dan Arthur

06 May 2013 - The newest member of the Shale Hills CZO team, Dan Arthur, joins us to fill the cyberspecialist position.  Dan joins the team from Purdue...

Post-doctoral researcher Diana Karwan funded to accomplish cross-CZO science

11 Jan 2013 - Karwan awarded an NSF EAR Postdoctoral Fellowship to work with Susquehanna Shale Hills and Christina River Basin Critical Zone Observatories

In Memoriam: Frederick Scatena 1954-2013

02 Jan 2013 - Frederick Scatena, PI of the Luquillo CZO, died peacefully at home on January 2, 2013 after a brief battle with cancer. We mourn the loss.


Investigating the earth’s critical zone

30 Jan 2012 - To the ordinary eye, south-central Pennsylvania's Shale Hills catchment is a pleasant little tract of deciduous forest much like any other in...


January edition of CSA News features the Critical Zone Observatories

21 Dec 2011 - The January 2012 cover story of CSA News investigates the Critical Zone Observatories.

Cross CZO research proposal awarded to study sediment transport mechanisms

16 Dec 2011 - The call for cross-CZO / cross-disciplinary research proposals was successfully answered by Dr. Diana Karwan, Post-Doctoral Fellow

NSF article highlights new research project stemming from SSHCZO

12 Dec 2011 - Progress in Critical Zone research at the Susquehanna Shale Hills CZO has provided “a better interpretation of the chemistry and flow of...

Science Nation video features Shale Hills Critical Zone Observatory

01 Nov 2011 - Resources like water can be taken for granted until changes in supply are observed. As global warming accelerates, some areas experience increases...

CZO PI featured in flood forecasting article for Research | Penn State

28 Sep 2011 - Do we predict floods well? This question and several others were asked of Chris Duffy, Professor of Civil Engineering. His response, several factors...

Deployment of Non-Invasive Soil Moisture Instrumentation a Success

06 Jul 2011 - Postdoctoral Research Associate Dr. Trenton Franz, Department of Hydrology and Water Resources at the University of Arizona, has successfully...

Nine Undergraduates Complete the 3rd Annual Hydrogeophysics Field Camp

04 Jun 2011 - The 3rd annual hydrogeophysics field camp, offered by Dr. Kamini Singha, has come to completion. Nine undergraduate participants, from rising...

National CZO All Hands Meeting hosted by University of AZ takes place at the Biosphere 2

16 May 2011 - Team members from each of the 6 national CZO’s gathered at the Biosphere 2 to share research progress and develop new directions for cross CZO...

The passing of Kelly Cherrey has touched the SSHCZO community

22 Feb 2011 - It is with sadness yet great appreciation we pay tribute to one of our own, Kelly Cherrey. Cherrey worked tirelessly to build the communication and...


Paper highlights manganese contamination in soils

13 Dec 2010 - Elizabeth Herndon, PhD candidate in Geosciences, and co-authors have determined that iron furnaces in operation during the 1700s and 1800s may have...

CZO hosts students and faculty from University of Pittsburgh

08 Oct 2010 - The Pitt Chapter of IAHR, the International Association of Hydro-Environment Engineering and Research, spent a day in the catchment visiting with...

PI’s from CZO organizing AGU session on hydrologic processes

09 Aug 2010 - As scientists from all over the world converge in San Francisco, CA this fall for the annual meeting of the American Geophysical Union, PI’s...

Sanders Seminar Series hosts Jaime J. Carrera-Hernández, PhD

02 Aug 2010 - The Departments of Anthropology and Civil and Environmental Engineering will host Jaime J. Carrera-Hernández, PhD, Professor of Applied...

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