Christina River Basin Critical Zone Observatory
In 2009, the University of Delaware, in collaboration with Stroud Water Research Center, received a $4.3 million grant from the National Science Foundation to establish the Christina River Basin Critical Zone Observatory (CRB-CZO) for researching questions relating to climate change. The CRB-CZO was active from 2009 to 2013.
The CRB-CZO integrated knowledge of water, mineral, and carbon cycles to quantify human impact on Critical Zone carbon sequestration — from soils to sea. It was located in the Piedmont and Atlantic Coastal Plain which provides drinking water to a million people in Delaware and Pennsylvania. CRB-CZO was one of ten NSF-supported critical zone observatories.
The data archive for CRBCZO can be found on HydroShare. If you have trouble accessing the data, please email email@example.com.
Research Experience for Teachers and Undergraduates
From 2014–2016, the CRB-CZO and the Susquehanna Shale Hills Critical Zone Observatory (The Pennsylvania State University) jointly hosted National Science Foundation-funded Research Experience for Teachers (RET) and Research Experience for Undergraduates (REU) programs. View the completed research.
More than 20 peer-reviewed scientific publications were produced from CRB-CZO research.
Coupled dynamics of aqueous biogeochemistry in contrasting floodplain environments: implications for Critical Zone carbon sequestration along redox gradients
A digital mayfly swarm is emerging
Topographic variation in soil erosion and accumulation determined with meteoric 10Be
Direct channel precipitation and storm characteristics influence short‐term fallout radionuclide assessment of sediment source
Soil carbon redistribution and organo-mineral associations after lateral soil movement and mixing in a first-order forest watershed
Variation of organic matter quantity and quality in streams at Critical Zone Observatory watersheds
Beryllium-7 wet deposition variation with storm height, synoptic classification, and tree canopy state in the mid-Atlantic USA
Seasonal dynamics of the soil microbial community structure within the proximal area of tree boles: possible influence of stemflow
The Role of Critical Zone Observatories in Critical Zone Science
Parent material and vegetation influence bacterial community structure and nitrogen functional genes along deep tropical soil profiles at the Luquillo Critical Zone Observatory
Forest canopy structural controls over throughfall affect soil microbial community structure in an epiphyte-laden maritime oak stand
Coupled geochemical and biogeochemical characterization of dissolved organic matter from a headwater stream
The delivery of dissolved organic carbon from a forested hillslope to a headwater stream in southeastern Pennsylvania, USA
Hydrologic dynamics and geochemical responses within a floodplain aquifer and hyporheic zone during Hurricane Sandy
A variable source area for groundwater evapotranspiration: impacts on modeling stream flow
Characteristic length scales and time‐averaged transport velocities of suspended sediment in the mid‐Atlantic Region, USA
Biological lability of dissolved organic carbon in stream water and contributing terrestrial sources
Measuring heterotrophic respiration rates of suspended particulate organic carbon from stream ecosystems
Estimation of dissolved organic carbon contribution from hillslope soils to a headwater stream
The initial design of data sharing infrastructure for the Critical Zone Observatory
Characterization and source determination of stream suspended particulate material in White Clay Creek, USA
Rates of soil mixing and associated carbon fluxes in a forest vs. tilled agricultural field: implications for modeling the soil carbon cycle
Riverine coupling of biogeochemical cycles between land, oceans, and atmosphere
Additional archived content can be found on the archived website for the national CZO program.