CUAHSI Hydrologic Information Systems

CUAHSI Hydrologic Information System (HIS) Project CUAHSI Standing Committee on HIS functioned from Fall 2001 to Fall 2003 and guided the proposal development NSF Project was awarded on April 1, 2004 This a 2-year project to define the requirements for a Center for Hydrologic Information (CHI) and to develop a prototype HIS Plan for years 3 and onwards is that NSF will hold competitions for: –Center for Hydrologic Information –HydroInformatics Thematic Centers

HIS Project Team Xu Liang David Tarboton LeRoy Poff Chunmiao Zheng Venkat Lakshmi Ken Reckhow Yao Liang Upmanu Lall David Maidment John Helly Praveen Kumar Michael Piasecki Jon Duncan Project co-PI Collaborator

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

HIS Data Organization Hydrologic Fluxes and Flows Hydrologic Digital Library Digital files of hydrologic information in any form (ADOs), indexed by a metadata catalog (.MIF) Digital Watershed (Atmospheric, surface and subsurface water) Arbitrary Digital Object (ADO)

Sensor Network Interfaces to Digital Library Example is for wireless network in Santa Margarita watershed, San Diego

HydroViewer Provides Access to… Neuse Watershed Collection Santa Margarita Watershed Collection + your Hydrologic Observatory Data Collection

Hydrologic Metadata Definition Data Centers NCDC NWIS NCEP NWS NGDC Sensor Arrays Numerical Models HSPF Air-Q MM5 Individual Samples METADATA Data Harvesting

Data Flow Center for Hydrologic Information Reference ModelsData Models Hydrologic FluxesData Models Digital Watersheds Distributed Data Sources Data Transformations Data Harvesting HO i Hydrologic Observatories Distributed Data Sources Federated Digital Library Hydrologic Synthesis Center Applications

New Concept of Publication Hydrologic Digital Library Normal Method +

Hydrologic Data Model Hydrologic Fluxes and Flows Digital Watershed (Atmospheric, surface and subsurface water) We need to represent the physical environment and water flowing through it

Created first for the Neuse basin Digital Watershed: An implementation of the CUAHSI Hydrologic Data Model for a particular region

ArcIMS Web Server displaying data compiled in Neuse HO Planning Study

Unidata: Atmospheric Science Precipitable water in the atmosphere Cross-section of relative humidity Images created using Unidata’s Integrated Data Viewer (IDV) Wind vectors and wind speed (shading) Unidata delivers real-time weather data including Nexrad to more than 100 universities

Neuse Basin: Coastal aquifer system * From USGS, Water Resources Data Report of North Carolina for WY 2002 Section line Beaufort Aquifer

A 3-D Volume Model of the Beaufort Aquifer Beaufort confining layer Beaufort aquifer Built by Gil Strassberg from borehole information collected by the Neuse basin case study team

Groundwater Model of Savannah River Site General head boundaries Package Streams Radioactive burial ground

GIS representation of the horizontal dimension Each cell is 100 meters by 100 meters 1600 m 3000 m

Create a 3 dimensional representation Geovolume Each cell in the 2D representation is transformed into a 3D object Geovolume with model cells

A volumetric spatial model registered in three dimensions by a GIS, with which time-varying data, model fluxes, spatial relationships and descriptive metadata are associated What is a Modelshed? Praveen Kumar, University of Illinois

Applications: Helping Remote Sensing and GIS data Talk Time series of Normalized Difference Vegetation Index (NDVI)

Applications: Illinois River Basin Database (ILRDB)

Water Balance in Illinois River Basin NDVI Atmospheric moisture flux Monthly streamflow Climate model precipitation Month Ratio to the Annual Mean

HIS Info for HO Proposals Now Nov 1 Feb 1 May 1 Interact with HO Proposers to clarify data requirements HO Proposals are submitted HO announcment is made by NSF HIS White Paper published by CUAHSI Draft HIS White Paper Review by HIS Users Committee Revision HIS White Paper will define what centralized services the HOs should expect to be provided to them

Education:GIS for Water Resources Graduate course taught jointly between Univ. of Texas and Utah State Univ. All lectures in video streaming format and supporting class materials are archived and available free of charge on internet Class starts this Thursday Grad hydrology class taught similarly next Spring An Arc Hydro book available here for each HO team

Conclusions A good start has been made with HIS Digital Hydrologic Library and Digital Watershed ideas are reasonably well formulated Work on mass balances, fluxes and flows is developing We want to support you in making your HO proposals to the extent we can David Maidment: John Helly