PNNL

Dr. Cleary is a postdoctoral research assistant with the Ecosystem Interfaces team in PNNL’s Environmental Molecular Sciences Division and the Environmental Molecular Sciences Laboratory (EMSL) user program. He is working on the development of a capillary absorption spectroscopy system capable of making high sensitivity stable isotope measurements with lower sample size requirements relative to other instrumentation. The system will be used to examine the contribution of root exudate and plant derived carbon in mediating microbial biogeochemical cycling within the rhizosphere. Prior to his arrival at PNNL, Cleary developed paleoclimate and paleoenvironmental records from stable isotopes of carbon and nitrogen in geological deposits. 

• Stable isotope geochemistry 

• Rhizosphere processes 

• Biogeochemistry 

• Paleoclimatology 

• Palynology 

• PhD in Geology, University of South Florida, 2019 

• MS in Geology, University of South Florida, 2015 

• BA in Geology, Cornell College, 2013 

2019 

Cleary, D. M., A. Feurdean, I. Tanțău, and F. L. Forray. 2019. “Pollen, Δ 15 N and Δ 13 C Guano-Derived Record of Late Holocene Vegetation and Climate in the Southern Carpathians, Romania.” Review of Palaeobotany and Palynology 265: 62-75. https://doi.org/10.1016/j.revpalbo.2019.03.002.  

2018 

Cleary, D. M., B. P. Onac, I. Tanţău, F. L. Forray, J. G. Wynn, M. Ionita, and T. Tămaş. 2018. “A Guano-Derived δ13N and δ15N Record of Climate since the Medieval Warm Period in North-West Romania.” Journal of Quaternary Science 33 (6): 677-688. https://doi.org/10.1002/jqs.3044.  

2017 

Cleary, D. M., J. G. Wynn, M. Ionita, F. L. Forray, and B. P. Onac. 2017. “Evidence of Long-Term NAO Influence on East-Central Europe Winter Precipitation from a Guano-Derived δ15N Record.” Scientific Reports 7 (1). https://doi.org/10.1038/s41598-017-14488-5.  

2016 

Cleary, D. M., B. P. Onac, F. L. Forray, and J. G. Wynn. 2016. “Effect of Diet, Anthropogenic Activity, and Climate on δ15N Values of Cave Bat Guano.” Palaeogeography, Palaeoclimatology, Palaeoecology 461: 87-97. https://doi.org/10.1016/j.palaeo.2016.08.012.  

2013 

Denniston, R. F., K. H. Wyrwoll, V. J. Polyak, J. R. Brown, Y. Asmerom, A. D. Wanamaker, Z. LaPointe, R. Ellerbroek, M. Barthelmes, D. Cleary, J. Cugley, D. Woods, and W. F. Humphreys. 2014. “Corrigendum to "a Stalagmite Record of Holocene Indonesian-Australian Summer Monsoon Variability from the Australian Tropics" [Quat. Sci. Rev. 78 (2013) 155-168].” Quaternary Science Reviews 87: 156-158. https://doi.org/10.1016/j.quascirev.2013.12.020.  

Denniston, R. F., K. H. Wyrwoll, V. J. Polyak, J. R. Brown, Y. Asmerom, A. D. Wanamaker, Z. LaPointe, R. Ellerbroek, M. Barthelmes, D. Cleary, J. Cugley, D. Woods, and W. F. Humphreys. 2013. “A Stalagmite Record of Holocene Indonesian-Australian Summer Monsoon Variability from the Australian Tropics.” Quaternary Science Reviews 78: 155-168. https://doi.org/10.1016/j.quascirev.2013.08.004.