CUAHSI Hydrologic Information Systems CUAHSI Hydrologic Information System

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 – Hydro. Informatics Thematic Centers

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

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

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

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

Hydro. Viewer Provides Access to… http: //cuahsi. sdsc. edu Neuse Watershed Collection Santa Margarita Watershed Collection + your Hydrologic Observatory Data Collection 7

Hydrologic Metadata Definition Numerical Models Air-Q HSPF MM 5 Sensor Arrays NCDC METADATA NWIS NCEP NWS Data Centers Data Harvesting NGDC Individual Samples

Data Flow Applications Data Models Data Digital Models Watersheds Center for Hydrologic Information Federated Digital Library Reference Models Hydrologic Fluxes Data Transformations Hydrologic Synthesis Center Data Harvesting Distributed Data Sources Distributed. Data Sources Hydrologic HO i Observatories HO i HO HOi i HOi Distributed Data Sources Distributed. Data Sources 9

New Concept of Publication Normal Method + Hydrologic Digital Library 10

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

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

http: //neuse. crwr. utexas. edu/ Arc. IMS Web Server displaying data compiled in Neuse HO Planning Study

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

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

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 Radioactive burial ground General head boundaries Package Streams

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

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

What is a Modelshed? 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 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 Ratio to the Annual Mean Atmospheric moisture flux Monthly streamflow NDVI Climate model precipitation Month

HIS Info for HO Proposals Now Interact with HO Proposers to clarify data requirements Nov 1 Draft HIS White Paper Review by HIS Users Committee Revision Feb 1 HO announcment is made by NSF HIS White Paper published by CUAHSI May 1 HO Proposals are submitted 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: maidment@mail. utexas. edu John Helly hellyj@ucsd. edu http: //cuahsi. sdsc. edu