Academic Performance

Academic Activities

+Refereed Papers

First author: 12 / Total: 35

  1. Aflizar, A. Saidi, Husnain, Ismawardi, Bambang Istijono, Harmailis, H. Somura, T. Wakatsuki, T. Masunaga (2010):A land use planning recommendation for the sumani watershed, West Sumatera, Indonesia, Tropics, 19 (1), 43-51.
  2. Aflizar, A. Saidi, Husnain, R. Indra, Darmawan, Harmailis, H. Somura, T. Wakatsuki, T. Masunaga (2010):Soil erosion characterization in an agricultural watershed in west Sumatra, Indonesia, Tropics, 19 (1), 29-42.
  3. I. Takeda, H. Somura, Y. Mori (2010):Recovery of phosphorus from natural water bodies using iron-oxidizing bacteria and woody biomass, Ecological Engineering, 36, 1064-1069.
  4. T. Morisawa, Y. Mori, J. Ide, H. Somura, I. Takeda, M. Inoue (2010):Characterizing infiltrated soil water quality as affected by rainfall condition, Journal of the Japanese Society of Soil Physics, 114, 3-10. (in Japanese with English abstract)
  5. I. Takeda, A. Fukushima, H. Somura (2009):Long-term trends in water quality in an under-populated watershed and influence of precipitation, Journal of Water and Environment Technology, 7 (4), 293-306.
  6. H. Somura, I. Takeda, Y. Mori (2009):Sensitivity analyses of hydrologic and suspended sediment discharge in the Abashiri River Basin, Hokkaido Region, Japan, International Agricultural Engineering Journal, 18 (1-2), 27-39.
  7. I. Takeda, A. Fukushima, H. Somura (2009):Characteristics of hydrological runoff in an artificial coniferous forest with delayed thinning and its long-term changes, Transactions of JSIDRE, 263, 41-48. (in Japanese with English abstract)
  8. T. Kato, H. Somura, K. Osawa, H. Kuroda (2009):Runoff characteristics of nitrate nitrogen in a Yatsu agricultural catchment during rainfall events, Transactions of JSIDRE, 261, 49-55. (in Japanese with English abstract)
  9. H. Somura, J. Arnold, D. Hoffman, I. Takeda, Y. Mori, M. Di Luzio (2009):Impact of climate change on the Hii River basin and salinity in Lake Shinji: a case study using the SWAT model and a regression curve, Hydrological Processes, 23 (13), 1887-1900. DOI: 10.1002/hyp.7321. [Abstract]
  10. H. Somura, I. Takeda, Y. Mori (2009):Influence of puddling procedures on the quality of rice paddy drainage water, Agricultural Water Management, 96 (6), 1052-1058. DOI: 10.1016/j.agwat.2008.12.005. [Abstract]
  11. T. Toda, I. Takeda, H. Somura, J. Ide (2009):Relationship between hydrological characteristics and tank model parameters in the conifer plantations with delayed thinning, Applied Hydrology, 21, 1-9. (in Japanese with English abstract)
  12. Y. Hirai, Y. Mori, H. Somura, N. Egusa, T. Morisawa (2008):Soil environment monitoring by multi-frequency electromagnetic sounding, J. Jpn. Soc. Soil Phys., 109, 3-14. (in Japanese with English abstract)
  13. I. Takeda, H. Somura (2008): Phosphorus recovery and its subsequent agricultural use from natural water area by using wood material by thinning and iron oxidizing bacteria, Journal of Environmental Conservation Engineering, 37(5), 347-351. (in Japanese with English abstract)
  14. H. Somura, A. Goto, H. Matsui, AM. Elhassan (2008):Impacts of nutrient management and decrease in paddy field area on groundwater nitrate concentration: a case study at the Nasunogahara alluvial fan, Tochigi prefecture, Japan, Hydrological Processes, 22 (24), 4752-4766. DOI: 10.1002/hyp.7089. [Abstract]
  15. H. Somura, K. Yoshida, H. Tanji (2008):Decadal fluctuations in the consumption of irrigation water during the rainy season, Lower Mekong River, Hydrological Processes, 22 (9), 1310-1320. DOI: 10.1002/hyp.6940. [Abstract]
  16. H. Somura, D. Nakayama, M. Aizaki, Y. Seike, M. Okumura, K. Nishikata (2008):Spatial distribution of water quality and load units in the Iinashi River basin, Shimane Prefecture, Japan, The Open Hydrology Journal, 2, 15-24. DOI: 10.2174/1874378100802010015. [Abstract]
  17. T. Morisawa, Y. Mori, N. Egusa, H. Somura, M. Inoue (2007):Environmental Load Discharge from Differently-managed Planted Forests induced by Heavy Rainfall Event -Observation with soil infiltration water-, Applied Hydrology, 20, 11-20. (in Japanese with English abstract)
  18. K. Yoshida, S. Shiozawa, O. Toda, H. Somura, H. Tanji (2007):Modeling of Radiation Shade Function considering Seasonal Change of Leaf Area Index of Riparian Vegetation, Annual Journal of Hydraulic Engineering, JSCE., 51, 1225-1230. (in Japanese with English abstract)
  19. K. Higuchi, O. Toda, K. Yoshida, H. Somura, H. Tanji (2007):Development of Irrigation Water Allocation Model considering Gate Operator Density, in Northeast Thailand, J. Japan Soc. Hydrol. & Water Resour., 20 (3), 167-190.
  20. K. Nishimura, I. Takeda, A. Fukushima, H. Somura (2006):Environmental Factors Affecting Fishes in a Paddy-field Area, Journal of Rainwater Catchment Systems, 12 (1), 11-16. (in Japanese with English abstract)
  21. K. Nishimura, I. Takeda, A. Fukushima, H. Somura (2006):Relationship between Diversity of Aquatic Animals and Environmental Factors in Drainage Canals at a Paddy-field Area in a Summer Season, Transactions of JSIDRE, 242, 99-105. (in Japanese with English abstract)
  22. H. Somura, H. Tanji, K. Yoshida, O. Toda, K. Higuchi (2005):Estimation of Supplementary Water to Paddy Fields in the Lower Mekong River Basin during the Dry Season, Paddy and Water Environment, 3 (3), 177-186. DOI: 10.1007/s10333-005-0015-5. [Abstract]
  23. H. Somura, K. Yoshida, K. Higuchi, O. Toda, H. Tanji (2005):Estimation of Supplementary Water Capacity for Non-irrigated Paddy Fields during the Dry Season in Northeast Thailand, Journal of JASS, 21 (3), 167-176. (in Japanese with English abstract)
  24. K. Yoshida, H. Somura, K. Higuchi, H. Tanji (2005):Stream Temperature Management with Conservation of Riparian Vegetation, Journal of JSIDRE, 73 (4), 281-284. (in Japanese)
  25. H. Somura, K. Yoshida, K. Higuchi, O. Toda, H. Tanji (2005):Model Development for Estimating Supplementary Water to Paddy Fields during Rainy Seasons in the Lower Mekong River Basin, Annual Journal of Hydraulic Engineering, JSCE, 49 (1), 235-240. (in Japanese with English abstract)
  26. K. Yoshida, H. Somura, K. Higuchi, O. Toda, H. Tanji (2005):Effect of Density Differences of Riparian Vegetation on the River Thermal Environment, Annual Journal of Hydraulic Engineering, JSCE, 49 (2), 1543-1548. (in Japanese with English abstract)
  27. H. Somura, H. Tanji, K. Yoshida, O. Toda, T. Masumoto (2005):Estimation of Irrigated Water to Paddy Fields under Conditions of Poor Data Availability, Cambodia, J. Japan Soc. Hydrol. & Water Resour., 18 (1), 22-34.
  28. O. Toda, K. Higuchi, H. Somura, H. Tanji (2005):History and Prospects of Colmatage System in Cambodia, Journal of JSIDRE, 73 (1), 31-34. (in Japanese)
  29. H. Tanji, M. Tada, H. Somura, K. Yoshida (2004):Rice Demand Estimation of Southeast Asian Countries, Journal of JSIDRE, 72 (9), 795-797. (in Japanese)
  30. H. Tanji, K. Yoshida, Y. Araragi, H. Somura (2004):Evaluation of Vulnerability of Flood Risk, Journal of JSIDRE, 72 (5), 381-384. (in Japanese)
  31. K. Yoshida, H. Tanji, H. Somura (2004):Stream Temperature Analysis in Nam Ngum River Basin, Mekong, Annual Journal of Hydraulic Engineering, JSCE, 48 (2), 1531-1535.
  32. H. Somura, A. Goto, M. Mizutani (2003):Modeling Analysis of nitrate nitrogen pollution processes of groundwater in Nasunogahara Basin, Transactions of JSIDRE, 226, 1-10.
  33. H. Tanji, K. Yoshida, Y. Araragi, H. Somura (2003):Life cycle assessment of irrigation water, Journal of JSIDRE, 71 (12), 1087-1090. (in Japanese)
  34. H. Somura, M. Masuda, A. Goto, M. Mizutani (2002):Groundwater nitrogen pollution and its mechanism in Nasunogahara Basin, Tochigi Pref., Japan., Transactions of JSIDRE, 219, 71-79. (in Japanese with English abstract)
  35. T. Kato, H. Somura, A. Goto (2002):Water Quality Forecast of Cidanau Watershed, Indonesia, for Watershed Management Planning, Rural and Environmental Engineering, 43, 3-12.

+Other Publications

  1. Y. Mori, H. Somura, I. Takeda (2008):Characterizing hydrological processes in forested hillslopes by infiltration water sampling, Journal of Environmental Conservation Engineering (Special Edition), 37 (11), 783-787. (in Japanese with English abstract)
  2. K. Yoshida, H. Somura, K. Higuchi, O. Toda, H. Tanji (2005):Relation of Corridor Vegetation Density and Stream Temperature, Dynamics and Biogeochemistry of River Corridors and Wetlands (Proceedings of symposium S4 held during the Seventh IAHS Scientific Assembly at Foz do Iguacu, Brazil, April 2005)., IAHS Publ. 294, 102-113. (ISSN 0144-7815-294)
  3. A. Fukushima, I. Takeda, H. Somura (2005):A Storage-based Runoff Model using the Delayed Input Rainfall Sequences and Its Application, Bull. Fac. Life Env. Sci. Shimane Univ., No.10, 37-46. (in Japanese)

+Proceedings

  1. H. Somura, I. Takeda, Y. Mori, D. Hoffman (2010):Application of SWAT for nutrient load discharge estimation, 2010 International SWAT Conference (Seoul), **-**.
  2. H. Somura, I. Takeda (2009): Numerical analyses on seasonal variations of nutrient salts and load discharges in Abashiri River Basin, 2009 International SWAT Conference (Boulder), **-**.
  3. H. Somura, I. Takeda (2009): Application of the SWAT model to the Abashiri River basin for impact assessment analysis to a brackish lake, Hokkaido region, Japan, 1st SWAT-SEA Conference, (Chiang Mai), **-**.
  4. H. Somura, I. Takeda, Y. Mori (2008): Relationship between farming activities and water quality variations of drainage water from paddy fields area, World Environmental & Water Resources Congress 2008 (Honolulu), 1-7 (CD).
  5. H. Somura, I. Takeda, Y. Mori (2008): Estimation of suspended solid discharge to a brackish lake in Shimane prefecture, Japan, 5th SWAT International Conference (Beijing), 1-12 (CD).
  6. H. Somura, D. Hoffman, J. Arnold, I. Takeda, Y. Mori (2007):Application of the SWAT Model to the Hii River Basin, Shimane Prefecture, Japan, 4th International SWAT Conference (Delft), **-**.
  7. H. Somura, K. Yoshida, H. Tanji (2006):Irrigation Water Consumption during the Rainy Season in the lower Mekong River Basin, The 2nd International Symposium on Sustainable Development in the Mekong River Basin (Phnom Penh), 93-99.
  8. K. Yoshida, S. Shiozawa, K. Higuchi, O. Toda, H. Somura, H. Tanji (2006):Estimation of Rice Production and Evapotranspiration by using Plant Growth Model in Khon Kaen, Northeast Thailand, The 2nd International Symposium on Sustainable Development in the Mekong River Basin (Phnom Penh), 153-160.
  9. H. Somura, K. Yoshida, K. Higuchi, O. Toda, H. Tanji (2005):Model Development for Supplementary Water Estimation in the Lower Mekong Basin , Proc. of 19th Congress on Irrigation and Drainage (Beijing), 1-11 (CD).
  10. H. Tanji, K. Yoshida, H. Somura, K. Higuchi, O. Toda (2005):Cost Allocation Model for Construction and Maintenance of Irrigation and Drainage Facilities, Proc. of 19th Congress on Irrigation and Drainage (Beijing), 1-11 (CD).
  11. H. Tanji, K. Yoshida, K. Higuchi, O. Toda, H. Somura (2005):Estimation of Recovery of Historical Fish Catch in Cambodia with consideration of Flood Water Levels, Proc. of 19th Congress on Irrigation and Drainage (Beijing), 1-17 (CD).
  12. H. Somura, H. Tanji, K. Yoshida, K. Higuchi, O. Toda (2004): Irrigated water estimation model to paddy fields using pump sets in Cambodia, Title of Environmental Hydraulics and Sustainable Water Management (Proc. of the 4th International Symposium on Environmental Hydraulics and the 14th Congress of Asia and Pacific Division, International Association of Hydraulic Engineering and Research), J. H. W. Lee and K. M. Lam (Eds.), A. A. Balkema Publishers, Vol. 2, 1981-1987. (ISBN 04-1536-546-5)
  13. K. Yoshida, H. Tanji, H. Somura, K. Higuchi, O. Toda (2004): Mitigation of stream temperature change with reservoir management, Title of Environmental Hydraulics and Sustainable Water Management (Proc. of the 4th International Symposium on Environmental Hydraulics and the 14th Congress of Asia and Pacific Division, International Association of Hydraulic Engineering and Research), J. H. W. Lee and K. M. Lam (Eds.), A. A. Balkema Publishers, Vol. 2, 1279-1284. (ISBN 04-1536-546-5)
  14. H. Somura, K. Yoshida, K. Higuchi, O. Toda, H. Tanji (2004): Development of Supplementary Water Estimation Model for Paddy Fields in the Lower Mekong Basin, Proc. of International Conference on "Advances in Integrated Mekong River Management" (Lao PDR), 220-227.
  15. K. Yoshida, H. Somura, K. Higuchi, O. Toda, H. Tanji (2004): Stream Temperature Regulating Function of River Corridor Vegetation, Proc. of International Conference on "Advances in Integrated Mekong River Management" (Lao PDR), 228-234.
  16. K. Higuchi, H. Somura, K. Yoshida, O. Toda, H. Tanji (2004): Irrigation Water Distribution in Northeast Thailand, Proc. of International Conference on "Advances in Integrated Mekong River Management" (Lao PDR), 110-114.
  17. H. Tanji, K. Yoshida, K. Higuchi, O. Toda, H. Somura (2004): Estimation of Fish Catch of Cambodia in Relation to Population and Flooding Area, Proc. of International Conference on "Advances in Integrated Mekong River Management" (Lao PDR), 169-176.
  18. H. Somura, H. Tanji, K. Yoshida, O. Toda (2004): Estimation of Irrigated Water to Paddy Fields during Dry Season in Each Province, LAOS, Proc. of 2nd APHW Conference (Singapore), 1, 553-561.
  19. K. Yoshida, H. Somura, O. Toda, T. Masumoto, H. Tanji (2004): Evaluation of Irrigation Efficiency at KM6 Project Site, Laos, Proc. of 2nd APHW Conference (Singapore), Vol. 1, 652-659.
  20. O. Toda, K. Yoshida, H. Somura, H. Tanji (2004): Evaluation of Tributaries Contribution in the Mekong River Basin during Rainy and Dry Season, Proc. of 2nd APHW Conference (Singapore), 1, 239-248.
  21. H. Somura, H. Tanji, K. Yoshida, O. Toda (2004): Model Development for Estimating Irrigated Water in Kandal Province, Cambodia, Proc. of ICID 2nd Asian Regional Conference (Australia), Session 4, Stream 1, 1-10 (CD).
  22. K. Yoshida, H. Tanji, H. Somura, O. Toda (2004): Evaluation of Stream Temperature Change with Reservoir Management in Nam Ngum Basin, Proc. of ICID 2nd Asian Regional Conference (Australia), Session 3, Stream 1, 1-8 (CD).
  23. H. Somura, H. Tanji, K. Yoshida, H. Kiri, T. Masumoto (2003): Evaluation of Dike Construction in Cambodia, Proc. of ICID Asian Regional Workshop (Taipei), 1, 401-410.
  24. K. Yoshida, H. Tanji, H. Somura (2003): The Management of Stream Temperature in Laos, Proc. of ICID Asian Regional Workshop (Taipei), 1, 157-166.
  25. H. Tanji, K. Yoshida, H. Somura (2003): Issues of Life Cycle Assessment for Irrigation, Proc. of ICID Asian Regional Workshop (Taipei), 1, 457-463.
  26. K. Yoshida, H. Tanji, H. Somura, T. Masumoto (2003): Evaluation of Potential Energy Loss with Dam Construction in Laos, Global Mapping Forum 2003 (Okinawa), Session3, 1-8 (CD).
  27. H. Somura, H. Tanji, K. Yoshida, H. Kiri (2003): Flood Risk Evaluation at Phnom Penh after Development and Banking of the Mekong River, DPRI-IIASA 3rd International Conference, Paper topic 9, 1-8.
  28. T. Kato, H. Somura, I. M. Gardjito (2001): GIS Analysis of the Nitrogen Pollutant Load and Water Quality in Cidanau Watershed, Proc. of the 1st seminar Toward Harmonization between Development and Environmental Conservation in Biological Production, 195-200.
  29. H. Somura, A. Goto, M. Mizutani (2000): Modeling Analysis of Nitrate Nitrogen Pollution processes of Groundwater in Nasunogahara Basin, The XIV Memorial CIGR World Congress (Tsukuba), 175-180 (CD: R1103).

+Conference Papers

  1. H Somura, I Takeda, T Masunaga, Y Mori, J Ide (2009): Influence of bird feces to water quality in paddy fields during winter season, AGU Fall Meeting (San Francisco, CA, USA), 14–18 December 2009 (Poster presentation).
  2. H. Somura, I. Takeda, T. Masunaga (2009): Impact of Migratory Birds to Water Quality in paddy fields during Winter Season, 2009 Annual Conference, Japan Society of Hydrology and Water Resources (in Japanese), (Poster presentation).
  3. H. Somura, I. Takeda, Y. Mori (2008): Analysis on Suspended Solid Discharge by using SWAT Model, The Annual Meeting of JSIDRE (The Japanese Society of Irrigation, Drainage and Rural Engineering) (in Japanese), (Poster presentation).
  4. H. Somura, D. Hoffman, J. Arnold, I. Takeda, Y. Mori, Y. Seike (2007):Impact Assessment of Climate Change to Salinity in Brackish Lake: A Case Study with SWAT Model and Regression Curve, AGU Fall Meeting (San Francisco, CA, USA), 10–14 December 2007 (Poster presentation).
  5. H. Somura, I. Takeda, Y. Mori (2007):Estimation of Streamflow in Hii River Basin by using SWAT2003 Model, The Annual Meeting of JSIDRE (The Japanese Society of Irrigation, Drainage and Rural Engineering) (in Japanese), (Poster presentation).
  6. H. Somura, I. Takeda, A. Fukushima, K. Nishimura,(2006):Basic Study on Load Discharge from Paddy Fields for Environmental Impact Assessment, The Annual Meeting of JSIDRE (The Japanese Society of Irrigation, Drainage and Reclamation Engineering) (in Japanese).
  7. H. Somura，K. Yoshida，K. Higuchi，O. Toda, H. Tanji (2005):A study on supplementary water estimation by an agricultural production data, The Annual Meeting of JSIDRE (The Japanese Society of Irrigation, Drainage and Reclamation Engineering) (in Japanese).
  8. H. Somura, H. Tanji, K. Yoshida, O. Toda, T. Masumoto (2004): Model Development for Estimating Irrigated Water to Paddy Fields in East Cambodia, The Annual Meeting of JSIDRE (The Japanese Society of Irrigation, Drainage and Reclamation Engineering) (in Japanese).
  9. H. Somura, H. Tanji, K. Yoshida, K. Higuchi, O. Toda (2004): Study of the estimation of supplementary water capacity for paddy fields during the dry season, Northeast Thailand, Proc. of 2004 Annual Conference, Japan Society of Hydrology and Water Resources (in Japanese).
  10. H. Somura, H. Tanji, K. Yoshida, H. Kiri (2003): Grasp of monthly discharge characteristics and estimation of flooded water in the lower Mekong River Basin, Cambodia, Proc. of 2003 Annual Conference, Japan Society of Hydrology and Water Resources (in Japanese).
  11. H. Somura, A. Goto, M. Mizutani (2003): Analysis of NO3-N Pollution of Groundwater by Distributed Groundwater Quality Model, The Annual Meeting of JSIDRE (The Japanese Society of Irrigation, Drainage and Reclamation Engineering) (in Japanese).
  12. H. Somura, A. Goto, M. Mizutani (2002): Clarification and modeling analysis of NO3-N pollution processes of groundwater in Nasunogahara Basin., The Sixth Symposium on Water Resources hosted by Ministry of Land, Infrastructure and Transport, Japan (in Japanese), 183-188.
  13. H. Somura, A. Goto, M. Mizutani (2001): Analysis on factors and mechanism of NO3-N groundwater pollution in Nasunogahara, Tochigi Prefecture., Proc. of 2001 Annual Conference, Japan Society of Hydrology and Water Resources (in Japanese).
  14. H. Somura, A. Goto, M. Mizutani, H. Nakamura (2000): Modeling analysis of nitrate nitrogen pollution processes of groundwater in Nasunogahara Basin., The Annual Meeting of JSIDRE (in Japanese).
  15. H. Somura, A. Goto, M. Mizutani, A. Murakami (1999): Modeling and analysis of nitrate nitrogen pollution processes of groundwater in Nasunogahara Basin., The Annual Meeting of JSIDRE (in Japanese).
  16. H. Somura, A. Goto, M. Mizutani, M. Masuda, (1998): Movement of NO3-N groundwater pollution in Nasunogahra Basin., The Annual Meeting of JSIDRE (in Japanese).

+Books

  1. T. Kato, H. Somura, A. Goto (2003): Water Quality Forecast Model of Cidanau Watershed, Indonesia, for Watershed Management Planning, Title of Sustainable Agriculture in Rural Indonesia, Hayashi, Y., Manuwoto, S. and Hartono, S. (Eds.), Gadjah Hada University Press, 3-14.

Halloween in Texas (October 2005)

Copyright © 2006 Hiroaki SOMURA All rights reserved.