The number of submitted abstracts to each session
Oral Poster Either Total
Session 1 10 4 5 19
Session 2 15 8 0 23
Session 3 5 1 0 6
Session 4 3 2 0 5
Session 5 26 2 3 31
Session 6 15 6 1 22
Session 7 8 1 1 10
Session 8 8 0 3 11
Session 9 17 3 0 20
Session 10 10 4 4 18
Session 11 13 5 3 21
Total 130 36 20 186


  1. Session1: Land-atmosphere interaction

  2.   Human activities have caused significant changes in the land-cover conditions on Earth in recent several decades and have possibly induced inevitable impacts on the Earth's climate. The land-surface processes are one of the critical issues for prediction of climate change, maintenance of ecological systems, and management of water resources. Measurement techniques have progressed abruptly in recent decades and meteorological databases have been constructed by various research communities. This session especially focuses on the land-atmosphere interaction to enhance our understanding of the issue in relation to climate change and human activities. Research issues on energy, water, and mass transfers at various land surfaces and meteorological and climatic topics are welcome.
    * Helen Cleugh (CSIRO, Atmospheric Research, Australia)
    * Tetsuya Hiyama (Nagoya University, Japan)
    * Atsushi Higuchi (Chiba University, Japan)
    * Takahashi Atsuhiro (RIHN, Japan)
  3. *Session2: Headwater environment: impacts of climate change and human intervention

  4. (* IAHC topics The 7th International Conference on Headwater Control )
      Headwater areas are generally characterized by a high potential of recharge of both surface- and ground-water resources, but also by conflicts in the exploitation of natural resources (water, timber, minerals or wildlife), tourism and leisure industries, and nature protection (frequently, these resources remain among the great natural reserves of a nation). Many headwater regions are in mountain steep-lands, and are frequently source areas for natural hazards. However, most headwater areas are the dominant features of plains and plateaus. Headwater environment often consists of fragile ecosystems being in a confrontation with the global climate change and human interventions.
    * Josef Krecek (Czech technical University, Prague, Czech republic)
    * Lorenzo Marchi (CNR IRPI, Padova, Italy)
    * Lilang Ren (Hohai University, China)
    * Yoshihiro Fukushima (RIHN, Japan)
    * Masanori Katsuyama (RIHN, Japan)
  5. *Session3: Strategic planning and environmental assessments of activities in headwater areas

  6. (* IAHC topics The 7th International Conference on Headwater Control )
      The management of headwater areas demands their full integration in environmental management plans. Towards this end, a new and comprehensive inventory of headwater watersheds is urgently required. The aim of management should be to maximize the benefits of these wetlands to their stakeholders. There remains a need to assess the role of headwaters in land use systems, especially farming, forestry, grazing, water resource management, tourism, and nature conservation. The effective management of headwaters in the frame of integrated watershed planning also demands some assessment of the role of key components and more effective participatory processes. Are the EIA (Environmental Impact Assessment) and SEA (Strategic Environmental Assessment) procedures effective tools in headwater control?
    * Einar Beheim (NVE, Oslo, Norway)
    * Bruce Van Haveren (US-EPA, Denver, USA)
    * Pier Carlo Zingari (EOMF, Chambery, France)
    * Takahiro Endo (RIHN, Japan)
  7. *Session4: Environmental education for sustainable development: the role of mountain and headwater landscapes

  8. (* IAHC topics The 7th International Conference on Headwater Control )
      Better quality of headwaters starts with environmental education. Conflicts in headwater environments address all the issues highlighted by "United Nations Decade of Education for Sustainable Development" (2005-2014): water, climate change, biodiversity, and disaster prevention. Higher education prepares the future decision-makers. Therefore, the more effective system on higher education is a key to better knowledge of the society. Better communication between researchers, students, communities and policy makers can increase the quality of headwater environment. The interdisciplinary perspectives in the watershed management should be progressed by more effective cooperation between social science, Earth sciences and engineering sciences.
    * Martin J. Haigh (Oxford Brookes University, Oxford, UK)
    * Andrej Hocevar (University of Ljubljana, Slovenia)
    * Marie Studer (Earthwatch Organization, Boston, MA - USA)
  9. Session5: Hydrological models in support of integrated water resources management
      Integrated water resources management aims at sustainable uses of water, land, and related resources. Hydrological models can help resource managers to analyse and quantify effects of spatial and temporal changes in the availability and quality of freshwater resources. The integration of global change aspects into hydrological models and the use of different modeling techniques can also provide decision makers with scenarios of potential anthropogenic interventions (land-use, reservoir operations, drainage and irrigation) and their impacts on fragile freshwater resources. The aim of this session is to address long-term changes of surface water and groundwater quantity and quality from headwater areas to the ocean. The session will focus on hydrological modeling and the integration of global change aspects (including climate change) from both the natural and social sciences using different modeling techniques.
    * Vijay P. Singh(Texas A&M University, USA)
    * Marcel Endejan (GWSP Deputy Executive Officer)
    * Ma Xieyao (Frontier Research System for Global Change, Japan)
    * Yoshinobu Sato (RIHN, Japan)
  10. Session6: Groundwater-surface water interaction

  11.   Understanding the mechanisms of water movement and transport of dissolved materials between surface water and groundwater is essential to improve the management of surface and groundwater resources and to protect the ecosystems from deterioration. Although surface water and groundwater have been considered separately for a long time, we now understand the fact that water cycle in terms of water quantity and quality is critical for the maintenance of the ecological systems of both rivers and aquifers. For example, the combined use of multiple tracers of both radioactive isotopes and stable isotopes, and other geochemical components will facilitate understanding of these hydrological processes. This session will bring together scientists to advance integrated analysis of groundwater-surface water systems. Physical, chemical, and biological processes, together with mathematical approaches focusing on groundwater-surface water interactions, and impacts due to climate changes and human activities/responses (i.e., urbanization, dam construction, water transfer projects, irrigation, and landfill) are welcome.
    * Jianyao Chen (Sun Yat-sen University, China)
    * Tsutomu Yamanaka (University of Tsukuba, Japan)
    * Takeo Onishi (RIHN, Japan)
  12. Session7: Remote sensing for measuring water balance, hydrodynamics and hydrological processes

  13.   Remote sensing analyses using satellite and aerial photo images collected in a broad range of spatial and temporal scales allow us to have an overview of the hydrodynamics, water balance and environmental changes in watershed and basin scale. For example, recently developed technique using GRACE (Gravity Recovery and Climate Experiment) satellite gives terrestrial water storage and their temporal changes even in the remote areas with less data set. On the other hand, aerial infrared imagery is effectively used to infer submarine groundwater discharge, which occurs with variations in space and time. Intensively collected groundtruth data set related to hydrological processes at local areas would be scaled up to large areas by combining these remote sensing techniques. The multidisciplinary approaches using visible, near and thermal infrared, microwave and other wavebands as well as GRACE like sensors will be welcomed to better understand hydrodynamics and hydrological processes in watershed.
    * Pat Yeh (The University of Tokyo, Japan.)
    * Yoichi Fukuda (Kyoto University, Japan)
    * Masayuki Matsuoka (Kohchi University, Japan)
  14. Session8: Interaction between the groundwater resources and ecosystems

  15.   Groundwater dependent ecosystems (GDEs) frequently occur in wetlands, terrestrial vegetation, riparian area in arid region, coastal zones, coral reefs and cave ecosystem. Critical damages or more gradual changes in composition and/or ecological function of communities are expected in these areas according to climate change and/or human impacts on hydrological settings. On the other hand, the degradation of vegetation can conversely cause a shift of related hydrological environment including water quality and water mass balance. The approaches for quantifying hydrodynamics in watersheds and submarine groundwater discharge at coastal areas are becoming better established, it would be time to integrate the interactions between ecosystems and groundwater system. This session will invite contribution to the broad examples collected at a variety of groundwater dependent ecosystem, including field observation and model prediction.
    * Derek Eamus (University of Technology, Sydney, Australia)
    * Nobuhito Ohte (The University of Tokyo, Japan)
    * Yu Umezawa (RIHN, Japan)
    * Tomohiro Akiyama (Aichi Univesity, Japan)
  16. Session9: Socio-economic models and monitoring of vulnerable water resource

  17.   Water is the basic necessity of people and has been the main resource for human activities. Nowadays, intensive socio-economic activities have caused the depletion of water resource, deterioration of water quality, and damaged to water environment in many areas. In order to promote sustainable development, it is necessary to manage human activities efficiently and effectively while satisfying the condition of water resource and its environment. This session will discuss the impacts of human activities on water resource systems and their functions. We welcome wide aspects of interdisciplinary studies in sociology, economics, political science, and ecology, focusing on human activities-water resource interactions.
    * Felino Lansigan (University of the Philippines, the Republic of the Philippines)
    * Masafumi Morisugi (Meijo University, Japan)
    * Akio Onishi (RIHN, Japan)
    * Karen Jago-on (RIHN, Japan)
  18. Session10: Reconstruction of human impacts on the surface and subsurface environments during past 100 years.

  19.   At the cities and surrounding areas, overuse of water resources associated with expanded human activities have caused drastic changes in subsurface environments such as water shortage and land subsidence. To understand the causal relationships on these issues, it is necessary to trace the effects of human activities on the environments accurately at each developing stage of the targeted areas. However, it is hard to collect the data sets in the past at the same quality and quantity with present circumstance, and to integrate the huge volume of those chronological data. In this session, therefore, we focus on the potential approaches and ideas from various fields to complement the data, which is available only with different resolutions in space and time. For example, access to historical materials such as old documents and maps, measurment of subsurface temperature, and even the well-thought-out interviews with older people can be effective tools to reconstruct the change of environmental conditions like land use, water use and surface temperature. Methods systematically integrate these data from different fields, including Geographic Information System (GIS) applications and other innovative approaches are also welcome.
    * Tomomasa Taniguchi (Rissho University, Japan)
    * Akinobu Miyakoshi (AIST, Japan)
    * Akio Yamashita (Rakuno Gakuen University, Japan)
  20. Session11: Land-ocean Interaction

  21.   Both river discharge and submarine groundwater discharge (SGD) are important pathways to carry chemical components from land to ocean. In the case of river water however, measurements of SGD and associated chemical fluxes, especially over substantial areas or time periods, are still uncertain due in part to their heterogeneous discharges. Especially shallow tidal flats near the river mouth, SGD including river bed water flow and tidally enhanced recharged seawater flow may result in overestimation of chemical fluxes from land areas to oceans. Furthermore, intensive human activities along the coast, for example, over-pumping of groundwater and bank protection works, may make these processes complicated. In this session, we will discuss on how to practically estimate SGD and the associated chemical fluxes combining the advantages of commonly-used approaches such as seepage meters, piezometers, natural tracers and electrical-resistivity instrumentation, among others. Numerical hydrodynamical and ecological models at coastal areas, which are improved by these new aspects, are also welcomed.
    * Makoto Taniguchi (RIHN, Japan)
    * Williams C. Burnett (Florida State University, USA)
    * Tesuo Yanagi (Kyushu University, Japan)
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