DR. ROGER A. LUYUN, JR.
LWRD Chair/Associate Professor 1
CONTACT INFORMATION:
Land and Water Resources Division, Institute of Agricultural Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, College, Laguna (Tel # +63 (049) 536-2387)
Email Address: [email protected]
EDUCATION:
| Year | Degree | University |
| 2010 | PhD Agricultural Engineering (Water Resources Engineering) | Kagoshima University, Japan |
| 2003 | MS Agricultural Engineering | University of the Philippines Los Baños |
| 1993 | BS Agricultural Engineering | University of the Philippines Los Baños |
RESEARCH INTERESTS:
Surface and Groundwater Hydrology; Irrigation and Drainage Engineering; Open Channel Hydraulics and Hydraulic Structures; Hydrologic Modeling/Numerical Simulation; Agrometeorology
PUBLICATIONS: (Google Scholar Page)
Penalba, L.M., D. D. Elazegui, R. A. Luyun, Jr., P. Sta. Cruz. 2013. Enhancing the Water Management Capability of Communal Irrigator’s Associations, University of the Philippines Los Banos.
Penalba, L.M., D. D. Elazegui, R. A. Luyun, Jr., P. Sta. Cruz, and B. Geronimo. 2012. Handbook on Irrigation Management Planning for Communal Irrigation System in the Philippines, Asia-Pacific Network for Global Change Research, University of the Philippines Los Banos and University of the Philippines Los Banos Foundation, Inc.
Luyun, R. A. Jr., K. Momii and K. Nakagawa. 2011. “Effects of recharge wells and flow barriers on seawater intrusion.” Ground Water Vol. 49 (2), 239-249.
Luyun, R. A. Jr., K. Momii and K. Nakagawa. 2009. “Laboratory-scale saltwater behavior due to subsurface cutoff wall.” Journal of Hydrology Vol. 377 (3-4), 227– 236.
Luyun, R. A. Jr., K. Momii, K. Nakagawa and M. Takahashi. 2009. “Effects of artificial recharge and physical barrier on seawater intrusion.” Annual Journal of Hydraulic Engineering, Japan Society of Civil Engineers (JSCE). Vol. 53, 85 – 90.
Luyun, R. A. Jr., K. Momii, K. Nakagawa and S. Fujiyama. 2008. “Saltwater dynamics due to cut-off wall installation in coastal unconfined aquifers: experimental and numerical studies.” In: Calibration and Reliability in Groundwater Modelling: Credibility of modelling. J.C. Refsgaard, K. Kovar, E. Haarder, E. Nygaard (eds). International Association of Hydrological Sciences (IAHS) Publication 320, 214 – 219.
Luyun, R. A. Jr. and W. P. David. 2008. “Effects of partial penetration on the characteristic well losses of naturally developed tubewells.” Philippine Journal of Agricultural and Biosystems Engineering. Vol. 6, 36 – 48.
COURSES TAUGHT:
| Course Code | Course Title |
| ABE 1 | Fundamentals of Agricultural and Biosystems Engineering I |
| ABE 71 | Field Hydrology |
| ABE 72 | Irrigation and Drainage Engineering I |
| ABE 73 | Soil and Water Conservation Engineering |
| ABE 174 | Open Channel Hydraulics |
| ABE 175 | Water Control Structures |
| ABE 179 | Water Resources Planning |
| ABE 180 | Soil Engineering |
| ABE 243 | Soil and Water Conservation |
| ABE 244 | Groundwater Hydrology |
| ABE 290 | Special Problems |
| ABE 291 | Special Topics |
ORGANIZATION/AFFILIATION:
Member, Philippine Society of Agricultural Engineers/Member
Member, International Association of Hydrological Sciences (IAHS/AISH)/ Member
Member, Japan Association of Groundwater Hydrologists (JAGH)/Member
Member, Japan Society of Civil Engineers (JSCE)/Student Member
Member, Gamma Sigma Delta Honor Society of Agriculture