Special Session on:
Computational Ecohydrology


Valeriy Ivanov, University of Michigan
Enrique Vivoni, Arizona State University


The interplay of abiotic factors with terrestrial ecosystems has been the subject of growing interest in a number of Earth science disciplines. The dynamic nature of such interactions often leads to bilateral feedbacks and nonlinearities that have been previously oversimplified. The transition to explicit quantitative description of these interactions has proven to be challenging because of limited understanding of involved processes and dependencies as well as scale issues. This session will focus on the scientific issues related to enhancing our knowledge of biotic-abiotic process coupling and their scaling properties, the development of innovative numerical methods describing these interactions, and the further evolution of fully-coupled landscape models that capture the role of biota in the dynamics of hydrological and hydrodynamic processes. Topics of interest include, but are not limited to:

-- Plant life-cycle processes and their representation in ecohydrological models
-- Models of plant-scale hydraulics and biophysics and upscaling methodologies
-- Ecohydrology of root dynamics and below-ground carbon and nutrient pools
-- Representation of vegetation biodiversity and heterogeneity in large-scale models
-- Modeling spatial vegetation processes, including competition and symbiosis
-- Modeling long-term controls of dynamic vegetation on the hydrological response
-- Vegetation and boundary layer interactions
-- Modeling watershed impacts on ecology of aquatic plant and fish habitats
-- Simulation of plant effects on flow hydrodynamics and sediment transport
-- Herbivory disturbances in watershed models and land-surface parameterizations

Papers and Abstracts:

Simulation of the Thermal and Hydraulic Behavior of an Individual Tree within a Forest
Jerrell Ballard, Jr, Stacy Howington, Pasquale Cinnella, James Smith

MIKE SHE-ECOLAB – an integrated catchment-scale eco-hydrological modelling tool
Michael Butts, Maria Loinaz, Peter Bauer-Gottwein, Robert Unnasch, Dayna Gross

Use of a Distributed Sensor Network to Parameterize a Model of Flows between the Soil, Vegetation, and Atmosphere in a Mixed Savanna-Agricultural Catchment in South Eastern Burkina Faso
Natalie Ceperley, Theophile Mande, Christopher Williams, Alexandre Repetti, Marc Parlange

Can Submerged Plants in the Littoral Zone of Groundwater-Dominated Lakes act as Hydraulic Barriers?
Peter Engesgaard, Mette Frandsen, Alicja Zajączkowska, Sachin Karan, Jacob Kidmose

The “non-effect” of grassland management on local and watershed ecohydrology
Simone Fatichi, Paolo Burlando

Modeling the Role of Solar Radiation on Landscape Ecogeomorphic Development
Javier H Flores Cervantes, Omer Yetemen, Erkan Istanbulluoglu, Rafael Bras

Deciphering the role of climate and land use on regional hydrologic trends: A modeling study of the upper Mississippi River Basin
Chris Frans, Erkan Istanbulluoglu, Dennis Lettenmaier

Hydrological Aspects of an Agent-Based Model for Malaria Transmission
James Gentile

Modeling the Effects of Fine-scale Soil Moisture and Canopy Heterogeneities on Energy and Soil Water Fluxes in a Temperate Mixed Forest
Lingli He, Valeriy Ivanov, Gil Bohrer, Kyle Maurer, Christoph Vogel

Simulating transient hydrologic behaviors during forest clearcut and pine plantation with dynamic vegetation growth
Taehee Hwang, Lawrence Band, Jame Vose

Hydraulic resistance to overland flow on vegetated hillslopes with mobile bed
Jongho Kim, Valeriy Ivanov, Nikolaos Katopodes

Expansion of bioenergy crops: Comparison of its impacts on hydrologic cycle for three sites in the Midwestern United States
Phong Le, Praveen Kumar, Nikolaos Katopodes

A dynamic plant water and carbon balance model for testing tree mortality mechanisms under climate-driven disturbances
Scott Mackay, Brent Ewers, David Roberts, Nate McDowell, Elise Pendall

Mechanistic linking of stomata conductance to soil moisture using a tree level hydrodynamic model
Ashley Matheny, Gil Bohrer

Emergence of Landscape Ecohydrological Patterns from Merging Remotely-Sensed Vegetation Dynamics and a Parallelized Hydrologic Model
Luis Mendez-Barroso, Tiantian Xiang, Agustin Robles-Morua, Enrique Vivoni

Generalizing catchment-scale evapotranspiration across California through automated data integration
Thomas Moran, Deb Agarwal, Catharine van Ingen, James Hunt

Optimization of hydrological parameters of conifer trees in the Southern Sierra Nevada
Joerg Rings, Tamir Kamai, Maziar Kandelous, Paolo Nasta, Peter Hartsough

Resilience Induced Sub-Optimal Carbon Allocation In Plants
Venkatraman Srinivasan, Praveen Kumar, Murugesu Sivapalan

Modeling Soil Moisture and Plant Stress under Irrigated Conditions in Semiarid Urban Areas
Thomas Volo, Enrique Vivoni, Chris Martin, Stevan Earl