2019

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CZ colleagues: Please contact us about proposals for NSF’s CZ Collaborative Network, due 02 Dec 2019

08 Jul 2019 - CZO will end Nov 2020, succeeded by the “CZ Collaborative Network”. Let’s explore how the CZ community can build upon the CZOs via new NSF proposals.

2018

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Calhoun CZO featured in Duke Magazine

14 Nov 2018 - How critical zone science unearths secrets: The new cross-disciplinary field of study concerns itself with the living skin of the Earth.

2017

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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.

X-ray Diffraction for Clay Minerals at Calhoun

01 May 2017 - Anna Wade (visiting from Duke University) and Jay Austin (based at the University of Georgia) are collaborating by using X-ray Diffraction (XRD) to...

2017 CZO Webinar Series: Critical Zone and Society

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

2016

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Four soil pits installed in new Research Area 8!

21 Nov 2016 - Four soil pits were installed in new Research Area 8 at the Calhoun CZO on 21-22 November 2016 for easy access for soil sampling down to 2 meters.

Eight new soil pits dug at the Calhoun!

17 Oct 2016 - Eight soil pits were installed at the Calhoun CZO on 17-18 October 2016 for easy access for soil sampling down to 2 meters. Photo: Will Cook.

USFS Photos from the Historic Archive of the Calhoun Experimental Forest

03 Oct 2016 - Just posted, thanks to efforts of Don Nelson, Kathy O'Neill, Mike Coughlan, Michael Lonneman, Zachary Meyers, and many other students, is an...

Calhoun CZO Headquarters!

15 Sep 2016 - At long last, a 900 sq ft house is now our headquarters at the Calhoun!!! We should all start to use it for multi-day, 2-day, & even 1-day...

First flux tower erected at the Calhoun CZO

17 Aug 2016 - On August 17, 2016 a crew from Georgia Tech led by graduate student Yao Tang and professor Jingfeng Wang, with a little help from the folks at Duke,...

Going deep! Gas wells installed at 8.5 m

14 Jul 2016 - Another Calhoun CZO record - gas reservoirs installed at 8.5m depth! Jay Austin, Zach Brecheisen, and Dan Richter only stopped at 8.5m because they...

TDR probes installed to monitor soil moisture

13 Jul 2016 - On July 13, 2016, Duke PhD candidate Zach Brecheisen, with assistance from his advisor Dan Richter and Jay Austin, installed TDR probes at 25-cm...

2015

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EOS: Taking the Pulse of the Earth’s Surface Systems

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...

Holcombe’s Branch floodplain profiles

05 Nov 2015 - Dan Richter has been excavating soils profiles up and down the banks of Holcombe's Branch in the Calhoun historic watersheds area, which will...

Big Rain Event at the Calhoun!

13 Oct 2015 - The Calhoun CZO received nearly 25 cm rain in 24-hr Sunday 4 October.  Paul Schroeder shot a photo of Ryan Fimmen's 2004 "Tyger Stripe"...

CCZO multi-layer geospatial pdf map updated!

11 Sep 2015 - Grad student Zach Brecheisen has updated this wonderful multi-layered pdf to share with other CCZO researchers.

CCZO multi-layer geospatial pdf map

13 Apr 2015 - Grad student Zach Brecheisen has created this wonderful multi-layered pdf to share with other CCZO researchers.

Calhoun CZO Google Map

03 Mar 2015 - Map showing all research sites at the Calhoun CZO.

2014

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Using a CZO network to explore the architecture, dynamics and evolution of the Critical Zone

03 Nov 2014 - The US CZO National Office has organized a webinar on December 8, 2014 at 11AM - 12:30 PM ET.

Duke PhD Students win 2-year IGERT Fellowships

23 Jul 2014 - Three students working on the Calhoun CZO have been selected to join Duke’s WISeNet program on wireless technology.  They will work...

2014 CZOData Cyber-Seminar Spring Series

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

Introducing Calhoun CZO

03 Mar 2014 - The Calhoun CZO seeks to understand how Earth’s Critical Zones respond to and recover from severe erosion and land degradation.