University of Minnesota and the Twin Cities




  1. Peer-Reviewed Publications

1. Ray, D. K. , U. S. Nair, R. M. Welch, Q. Han, J. Zeng, W. Su , T. Kikuchi, and T. J. Lyons, 2003, Effects of land use in Southwest Australia : 1. Observations of cumulus cloudiness and energy fluxes, J. Geophys. Res., 108(D14), 4414, doi:10.1029/2002JD002654 (pdf)

2. Ray, D. K., R. M. Welch, R. O. Lawton, and U. S. Nair, 2006, Dry Season Clouds and Rainfall in Northern Central America: Implications for the Mesoamerican Biological Corridor, Global and Planetary Change , doi:10.1016/j.gloplacha.2005.09.004 (pdf)

3. Ray, D. K., U. S. Nair, R. O. Lawton, R. M. Welch, and R. A. Pielke Sr., 2006, Impact of land use on Costa Rican tropical montane cloud forests: Sensitivity of orographic cloud formation to deforestation in the plains, J. Geophys. Res., 111, D02108, doi:10.1029/2005JD006096. (pdf)

4. Nair, U. S., D. K. Ray, J. Wang, S. A. Christopher, T. J. Lyons, R. M. Welch, and R. A. Pielke Sr., 2007, Observational estimates of radiative forcing due to land use change in southwest Australia, J. Geophys. Res., 112, D09117, doi:10.1029/2006JD007505 (pdf)

5. Pijanowski, B. C., D. K. Ray, A. J. Kendall, J. M. Duckles, D. W. Hyndman, 2007, Using Backcast Land Change and Groundwater Travel-time Models to Generate Land Use Legacy Maps for Watershed Management, Ecology and Society, Vol 12, 2 (pdf)
(Link to American Museum of Natural History's visualization of the results of this paper

6. Welch, R. M., S. Asefi, J. Zeng, U. S. Nair, Q. Han, R. O. Lawton, D. K. Ray, and V. S. Manoharan, 2008, Biogeography of Tropical Montane Cloud Forests, 1: Remote Sensing of Cloud Base Heights, Journal of Applied Meteorology and Climatology, DOI: 10.1175/2007JAMC1668.1 (pdf)

7. Nair, U.S., S. Asefi, R.M. Welch, D.K. Ray, R.O. Lawton, V.S. Manoharan, M. Mulligan, T.L. Sever, D. Irwin, A. Pounds, 2008, Biogeography of Tropical Montane Cloud Forests, 2: Mapping of Orographic Cloud Immersion,
Journal of Applied Meteorology and Climatology, DOI: 10.1175/2007JAMC1819.1 (pdf)

8. Ray, D. K., R. A. Pielke, Sr., U. S. Nair, R. M. Welch, and R. O. Lawton, 2009, Importance of land use versus atmospheric information verified from cloud simulations from a frontier region in Costa Rica, Journal of Geophysical Research, doi:10.1029/2007JD009565 (pdf)

9. Long, D. T., M.J. Parsons, B.C. Pijanowski, D.K. Ray, C.H. Yansa, S.S. Yohn, C.E. McLean, R.G. Vannier, 2009, Assessing Ecosystem Response to Land-Use Change Using Sediment-Chemical Chronologies and a Backcast Model: A Pilot Study (CEST2009)

10. Ray, D. K., and B. C. Pijanowski, 2010, A backcast land use change model to generate past land use maps: application and validation at the Muskegon River watershed of Michigan, USA, Journal of Land Use Science, 5: 1, 1-29, doi: 10.1080/17474230903150799 (pdf)

11. Nair, U. S., D. K. Ray, R. O. Lawton, R. M. Welch and R. Pielke, 2011, The impact of deforestation on orographic cloud formation in a complex tropical environment, 538-548, In: Tropical Montane Cloud Forests, L. A. Bruijnzeel, F. N. Scatena and L. S. Hamilton (eds), Cambridge University Press, 750 (p) (pdf

12. Mishra, V., K. A. Cherkauer, D. Niyogi, L. Ming, B. C. Pijanowski, D. K. Ray, and L. C. Bowling, 2010, A Regional Scale Assessment of Land use/land cover and Climate Changes on Surface Hydrologic Processes (International Journal of Climate) (pdf)

13. Lawton, R. O., U. S. Nair, D. K. Ray, A. Regmi, A. Pounds, and R. M. Welch, 2011, Quantitative measures of immersion in cloud and the biogeography of cloud forest 217-227, I
n: Tropical Montane Cloud Forests, L. A. Bruijnzeel, F. N. Scatena and L. S. Hamilton (eds), Cambridge University Press, 750 (p)

14. Ray, D. K., R.A. Pielke Sr., U.S. Nair, and D. Niyogi, 2010,
Roles of atmospheric and land surface data in dynamic regional downscaling, J. Geophys. Res., 115, D05102, doi:10.1029/2009JD012218 (pdf)

15. Ray, D. K., J. M. Duckles and B. C. Pijanowski, 2010, The Impact of future land use scenarios on runoff volumes in the Muskegon river watershed, Environmental Management, doi:10.1007/s00267-010-9533-z (pdf)

16. Ray, D. K., V. S. Manoharan and R. M. Welch, Cloud cover conditions and stability of the Western Ghats montane wet forests, J. Geophys. Res. doi:10.1029/2010JD015245, in press,

17. Ray, D. K., B. C. Pijanowski, A. D. Kendall and D. W. Hyndman, An assessment of the sources of uncertainty in a coupled land use and groundwater model and its use for land use planning, Applied Geography, in review

18. Foley, J. A., and coauthors, Solutions for a cultivated planet, Nature, in review



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