Associate Professor, Geography and Environment
Email address: email@example.com
BOT/HWST 105: Hawaiian Plants and Their Uses, GEO 101: The Natural Environment, GEO 101L The Natural Environment Laboratory, GEO 102: World Regional Geography, GEO 122 Geography of Hawai’i
My research focuses on the ecohydrology of tropical montane cloud forest in Hawai’i.
DeLay J., Tseng H., Giambelluca T., Nullet, M., Nicolow J., Rodrigues K. (2020), Slope Environmental Lapse Rates and Fog on O?ahus Highest Mountain [B122-01] presented at 2020 AGU Fall Meeting, 1-17 Dec.
Tseng, H., Giambelluca, T. W., Small Griswold, J. D., Freitag, S., Howell, S. G., Nugent, A., Beilman, D. W., Winchester, C., DeLay, J. K. (2018, December). Testing alternative ground-based cloud liquid water content measurement methods for estimating cloud water interception in tropical montane cloud forests. In AGU Fall Meeting Abstracts (Vol. 2018, pp. H43B-30).
Tseng, H., Giambelluca, T. W., DeLay, J., & Nullet, M. (2017, December). Cloud water interception and canopy water balance in the Hawaiian Islands: preliminary results and emerging patterns. In AGU Fall Meeting Abstracts (Vol. 2017, pp. H11D-1212).
Guidry, M., Eschenberg, A., McCoy, F. W., McManus, M. A., Lee, K., DeLay, J. K., … & Krupp, D. (2017, December). Creating and maintaining a successful geoscience pathway from 2YC to 4YC for Native Hawaiian Students: First Steps. In AGU Fall Meeting Abstracts (Vol. 2017, pp. ED22B-08).
Lu, P. L. and DeLay, J. K. 2016. Vegetation and fire in lowland dry forest at Waahila Ridge on Oahu, Hawaii. PhytoKeys, 68, 51-64.
Giambelluca, T. W., Mudd, R. G., Huang, M., Miyazawa, Y., Nullet, M., DeLay, J. K., … & Litton, C. M. (2015, December). Invasive non-native trees in Hawaiian forests could increase negative impacts of climate change on water resources. In AGU Fall Meeting Abstracts (Vol. 2015, pp. H24B-04).
DeLay, J.K., and Giambelluca, T.W. 2011. History of cloud water interception research in Hawaii. In Bruijnzeel, L.A., Scatena F.N., and Bubb, P. (eds.) Mountains in the Mist: Science for Conserving and Managing Tropical Montane Cloud Forests. Cambridge University Press: 740 pp.
Giambelluca, T.W., DeLay, J.K., Nullet, M.A., Scholl, M.A., and Gingerich, S.B. 2011. Interpreting canopy water balance and fog screen observations: separating cloud water from wind-blown rainfall at two contrasting forest sites in Hawaii. In Bruijnzeel, L.A., Scatena F.N., and Bubb, P. (eds.) Mountains in the Mist: Science for Conserving and Managing Tropical Montane Cloud Forests. Cambridge University Press: 740 pp.
Giambelluca, T.W., DeLay, J.K., Nullet, M.A., Scholl, M.A., and Gingerich, S.B. 2011. Canopy water balance of windward and leeward cloud forests on Haleakal?, Maui, Hawaii. Hydrological Processes, 25: 438-447
Juvik, J.O., DeLay, J.K., Kinney, K.M., and Hansen, E.W. 2011. A 50th anniversary of the seminal L?nai fog drip study in Hawaii. Hydrological Processes. 25: 402-410
Takahashi, M. Giambelluca, T., Mudd, R., DeLay, J., Nullet, M., Asner, G. 2011. Rainfall partitioning and cloud water interception in native forest and invaded forest in Hawaii Volcanoes National Park. Hydrological Processes. 25: 448-464
Giambelluca, T.W., Martin, R.E., Asner, G.P., Huang, M., Mudd, R.G., Nullet, M.A., DeLay, J.K., and Foote, D. 2009. Evapotranspiration and energy balance of wet montane cloud forest in Hawaii. Agricultural and Forest Meteorology. 149, 2: 230-243
Juvik, J.O., DeLay, J., M. Merlin, M. Castillo, and L. Perry. 2008. Endangered Plants and Threatened Ecosystems on the Island of Hawaii. Petroglyph Press: 64 pp.
Juvik, J., DeLay J., Tango L. 2008. Climatological and Hydrological Field Monitoring. In Mueller-Dombois, D. Bridges, K. W., and C. C. Daehler, eds. Biodiversity Assessment of Tropical Island Ecosystems: PABITRA Manual for Interactive Ecology and Management. Bishop Museum Press, 255 pp.
Wester, L., DeLay J., Hoang, L., Iida B., Kalodimos, N., Wong, T. 2006. Population dynamics of Marsilea villosa on Oahu, Hawaii. Pacific Science. 60, 3: 385-402
DeLay, J., M. Merlin, J. Juvik, M. Castillo, and L. Perry. 2004. Rare and unusual plants on the island of Hawaii. Hilo Bay Printers: 32 pp.
2020-2021: Campus Sustainability Co-Coordinator, Sustainability Committee (Strategic Plan, Charter, Website, Showcase, and Events Subcommittees), System Sustainability Curriculum Council, University College Division Personnel Committee (Chair), Assessment Committee (Humanities and Social Sciences Liaison), Halau ola Honua NSF PAGE Grant Co-PI, Service to the State of Hawai’i Department of Land and Natural Resources and the Army Natural Resource Program through site maintenance and data collection on Mt. Ka’ala.
American Meteorological Society (Member), American Geophysical Union (Member), University of Hawaii at Manoa Ecohydrology Lab (Member), Mt. Ka’ala Meteorological Site Coordinator