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Grant Harley

Grant Harley

Associate Professor


McClure Hall 305D



Mailing Address

Department of Geography
University of Idaho
875 Perimeter Drive, MS 3021
Moscow, ID 83844-3021

Research: Dendrochronology, paleoclimatology, climate change, wildfire, drought, cave and karst environments

  • Ph.D., Geography, University of Tennessee, 2012
  • M.A., Geography, University of South Florida, 2007
  • B.A., Geography, University of South Florida, 2005

Grant’s research interests lie within the broad domain of physical geography, but focus on climatology, biogeography, and paleoenvironmental reconstruction over the past ca. 2,000 years. Currently the overarching goal of Grant’s research program is focused on integrating information about current and past climatic and ecological processes to better understand how natural resources (like plant communities and water) are likely to become altered in the future due to human-induced changes. Grant uses dendrochronology and spatial analysis as research tools to investigate landscapeā€scale dynamics (those initiated and/or controlled by both human and natural processes), which must be tempered with a historical perspective.

Grant L. Harley, James King, and Justin T. Maxwell. 2017. Trans-Atlantic connections between African dust flux and tree growth in the Florida Keys, Earth Interactions 21(7): 1–22,

R. Stockton Maxwell, Grant L. Harley, Justin T. Maxwell, Shelly A. Rayback, Neil Pederson, Ed R. Cook, David J. Barclay, and Wenhong Li. 2017. An interbasin comparison of tree-ring reconstructed streamflow in the eastern United States, Hydrological Processes 31: 2381–2394,

Nesibe Köse, Tuncay H. Güner, Grant L. Harley, and Joel Guiot. 2017. A broad network of tree-ring chronologies reveals the first spring temperature reconstruction from Turkey, Climate of the Past 13:1–15,

Grant L. Harley, Justin T. Maxwell, Evan Larson, Henri D. Grissino-Mayer, Joseph Henderson, and Jean Huffman. 2017. Suwannee River flow variability 1550–2005 CE reconstructed from a multispecies tree-ring network. Journal of Hydrology, 544, 438–451, doi:

Valerie Trouet, Grant L. Harley, and Marta Dominguez Delmás. 2016. Shipwreck rates reveal Caribbean tropical cyclone response to past radiative forcing, Proceedings of the National Academy of Sciences of the United States of America 113(12): 3169–3174,doi: 10.1073/pnas.1519566113.

Charles R. White and Grant L. Harley. 2016. Historical fire in longleaf pine (Pinus palustris Mill.) forests of south Mississippi and its relation to land use and climate, Ecosphere 7(11):e01458. 10.1002/ecs2.1458

Justin T. Maxwell, Darren L. Ficklin, Grant L. Harley, and Gregory V. Jones. 2016. Projecting future winegrape yields using a combination of Vitis vinifera L. growth rings and soil moisture simulations, northern California, USA, Australian Journal of Wine and Grape Research 22(1): 73–80, doi: 10.1111/ajgw.12158

Grant L. Harley, H. D. Grissino-Mayer, Sally P. Horn, and Chris Bergh. 2014. Fire synchrony and the influence of Pacific climate variability on wildfires in the Florida Keys, U.S.A., Annals of the Association of American Geographers 104(1):1–19, doi: 10.1080/00045608.2013.843432.

Grant L. Harley, Henri D. Grissino-Mayer, and Sally P. Horn. 2013. Fire history and forest structure of endangered pine rockland communities in the Florida Keys, International Journal of Wildland Fire 22(3):394–404.

Grant L. Harley, Jason S. Polk, Leslie A. North, and Philip Reeder. 2011. Application of a cave inventory system to stimulate development of management strategies: The case of west-central Florida, USA. Journal of Environmental Management 92(10):2547–2557.

Department of Geography and Geological Science

Physical Address:
McClure 201

Mailing Address:
875 Perimeter Drive MS 3021
Moscow ID, 83843-3021

Geography: 208-885-6216
Geology: 208-885-6192