My research focuses on the reactive nitrogen cycle, with an emphasis on nitrate deposition. My interest in reactive nitrogen (e.g., NOx) extends from its connection to air quality through its impact on ozone and hydroxyl concentrations to the biogeochemical cycling of nitrogen in the earth system via formation of nitric acid (or nitrate), a major component of acid rain and a source of biologically available nitrogen.

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I graduated magna cum laude in 1998 with a B.Sc. in marine science and chemistry from the University of Miami in Coral Gables, FL. After a one-year stint working at the National Oceanic and Atmospheric Administration's Geophysical Fluid Dynamics Laboratory, I began graduate school in the Department of Geosciences at Princeton University. Graduating with a Ph.D. in 2004, I subsequently became a postdoctoral researcher at the University of Washington with a fellowship from the Joint Institute for Study of the Atmosphere and Ocean (JISAO). I joined the faculty at Brown in 2008, and continue to pursue my varied research interests in the global N cycle, the biogeochemical record in ice cores and global connections between atmospheric chemistry and climate.

Curricum Vitae

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Meredith and ICDS driller, Bella, drilling an ice core near Summit, Greenland.

Meredith and 1-meter piece of "fresh" ice core.

Meredith and graduate student, Justin Wettstein collecting gas phase and aerosol samples in Summit, Greenland.

Meredith processing ice core in the freezer at University of Washington.

Joukowsky Family Assistant Professor
Geological Sciences
Phone: +1 401 863 3658
Phone 2: +1 401 863 3339

Meredith Hastings's Brown Research URL:

On The Web:
Brown's Earth Systems History Group
New Proxy Reveals How Humans Have Disrupted N Cycle
Facilitating career advancement for women in the Geosciences through the Earth Science Women's Network (ESWN)
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