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Soil Hydrology Across Space and Time – Scale Up and Scale Down

September 24, 2015
4:00 pm - 5:00 pm

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Dr. Binayak Mohanty
Department of Biological & Agricultural Engineering Texas A&M University

Regents Professor
CoALS Chair in Hydrologic Engineering and Sciences


The “Critical Zone” extending from the top of the vegetative canopy through the depth of weathered bedrock plays a central role in Earth’s climate system and provides essential ecosystem services, thereby affecting virtually every aspect of society and the environment. Thus, water stores and fluxes across the critical zone from process scale to management scale are necessary to better account, model, and manage the available water resources. Near surface hydrology has made significant progress in the past three decades. With the advent of new ground-­based networks and remote sensing (satellite) measurement techniques at multiple resolutions and frequency, development of novel scale-­appropriate process modeling and data assimilation/fusion tools are some of the key improvement in the recent years. Soil moisture status and soil water fluxes are important attributes to close the water budget at different scales in the hydrologic cycle. Soil moisture temporal and spatial variability over catchment areas affects surface and subsurface runoff, modulates evaporation and transpiration, determines the extent of groundwater recharge and contaminant transport, and initiates or sustains feedback between the land surface and the atmosphere. In this presentation, recent advances dealing with better understanding of soil moisture controls, up-­ and down-­scaling techniques, and effective soil hydraulic parameters at different scales will be presented with questions posing future opportunities to improve the predictive skill for the complex hydrologic systems.


Dr. Binayak Mohanty is a Regents Professor and the inaugural holder of CoALS Chair in Hydrologic Engineering and Sciences at Biological and Agricultural Engineering, Texas A&M University. Dr. Mohanty earned his Ph.D. from Iowa State University in 1992. Dr. Mohanty pioneered the innovative use of combining ground-­, air-­ and satellite-­based remote sensing as a research tool to study soil moisture, soil hydraulics, and evapotranspiration at different scales and established the scaling law and physical controls of soil moisture. Dr. Mohanty received the Don and Betty Kirkham Soil Physics award from Soil Science Society of America (SSSA) in 2014, for his seminal contribution on application of remote sensing in soil physics. He has published 110 peer­‐ reviewed papers in premier hydrology journals. He serves in the editorial board of many international hydrology journals such as Water Resources Research, Vadose Zone Journal, and grants panels of NASA, NSF, DOE, and other international agencies. Dr. Mohanty is leading the new Texas A&M RDF initiative on Texas Water Observatory (TWO) in the Brazos Corridor.


September 24, 2015
4:00 pm - 5:00 pm


Rudder Tower, Room 301