CUAHSI Hydrologic Information System and its role in Hydrologic Observatories Core Team: D. Maidment, J. Helly, P. Kumar, M. Piasecki, R. Hooper Collaborators: W. Graham, V. Lakshmi, X. Liang, Y. Liang, U. Lall, L. Poff, K. Reckhow, D. Tarboton, I. Zaslavsky, C. Zheng Thanks to: CUAHSI Hydrologic Information System Standing Committee

CUAHSI Hydrologic Information System (HIS) Project This a 2-year project to develop an RFP for the Center for Hydrologic Information (CHI) and perform preliminary research and prototyping for HIS For years 3 and onwards, all funding will be competitively awarded by NSF/CUAHSI –Center for Hydrologic Information –HydroInformatics Thematic Centers Proposal has been recommended for funding but is awaiting final administrative approval at NSF

CUAHSI Program Components

Environmental Cyberinfrastructure Part of NSF Cyberinfrastructure program Special emphasis on environmental sciences fostered by Margaret Leinen CUAHSI Hydrologic Information Systems is one of several pilot projects

Institutions of participants in the CUAHSI HIS Proposal Hydrologic Information Partners

Hydrologic Information System Analysis, Modeling, Hypothesis testing Hydrologic Database

HIS will facilitate Model Integration Coupled Ocean-Atmosphere Models Mesoscale Models SVATs Groundwater Models Watershed Models P E QsQs  S s  S g QgQg IgIg

Information Sources Analysis and Visualization Hydrologic Information Data Model CUAHSI Hydrologic Information System GIS Experiments Simulation Monitoring Climate models 2. Integrate data into a coherent structure 3. Do science 1. Assemble data from many sources Hypothesis testing Data Assimilation Remote sensing Statistics

Created first for the Neuse basin and then for each of the following CUAHSI Observatory Planning basins Digital Watershed: An implementation of the CUAHSI Hydrologic Information Data Model for a particular region

Data from the Center for the Analysis & Prediction of River Basin Environmental Duke University Neuse River Basin Data Themes STATSGO - General soil survey data Land Use / Land Cover Data Dams Stream flow gages Watersheds Digital Elevation Model plus lots of time series of water resources monitoring data…..

Hydrologic Characterization at Observatories Three properties: –Residence time distribution within “stores” –Fluxes across interfaces/stores –Flowpaths between stores Conceptual model –Include atmosphere as part of model –Elaboration of stores (boxes) and structure must be reconciled among disciplines Need for spatial definition of “stores”, perhaps as control volumes

3D Control Volume of Neuse Basin Fluxes Extrude watershed boundary 15 km up into atmosphere and 1 km down into subsurface

Observatory Goal: Hydrologic Fluxes Improve predictive understanding of fluxes of –Water –Sediment –Nutrients –[Selected Contaminants] Across spatial scales, including catchment outlet Riverine fluxes, at a minimum, but also fluxes across other interfaces (PI-specified) Need for definition of “HydroElements”, at any location in hydrologic system

Riverine HydroElements Detailed bathymetry points of a river channel 3D HydroElement formed from cross-sections and profile lines

Geospatial HydroElements Grid Watershed Triangulated irregular network 3-D Move smoothly among different views of basin

CUAHSI HIS… Parting Thoughts We want to be as open and collaborative as possible We welcome any ideas and suggestions you may have We are open to helping with additional proposals to other funding sources to leverage the CUAHSI HIS effort me at