Hydrologic Information System GIS – the water environment Water Resources – the water itself CUAHSI HIS: NSF-supported collaborative project: UT Austin + SDSC + Utah State + Drexel + South Carolina (www.cuahsi.org/his /). PI: David R. Maidment (UT-Austin) Goals: . provide rapid uniform access to heterogeneous hydrologic data, and facilities for data publishing; . develop a framework for synthesizing data and models in a region (support for observatories); . strengthen place-based hydrologic science . quantify and visualize the movement of water and chemicals continuously in space and time . hydrologic education CyberInfrastructure project
19
Embed
Hydrologic Information System GIS – the water environment Water Resources – the water itself CUAHSI HIS: NSF-supported collaborative project: UT Austin.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Hydrologic Information System
GIS – the water environment
Water Resources – the water itself
CUAHSI HIS: NSF-supported collaborative project: UT Austin + SDSC + Utah State + Drexel + South Carolina (www.cuahsi.org/his/). PI: David R. Maidment (UT-Austin) Goals:. provide rapid uniform access to heterogeneous hydrologic data, and facilities for data publishing;. develop a framework for synthesizing data and models in a region (support for observatories); . strengthen place-based hydrologic science. quantify and visualize the movement of water and chemicals continuously in space and time. hydrologic education CyberInfrastructure project
Point Observations Information Model
Data Source
Network
Sites
Variables
Values
{Value, Time, Qualifier, Offset}
USGS
Streamflow gages
Neuse River near Clayton, NC
Discharge, stage (Daily or instantaneous)
206 cfs, 13 August 2006
• A data source operates an observation network• A network is a set of observation sites• A site is a point location where one or more variables are measured• A variable is a property describing the flow or quality of water• A value is an observation of a variable at a particular time• A qualifier is a symbol that provides additional information about the value• An offset allows specification of measurements at various depths in water
http://www.cuahsi.org/his/webservices.html
GetSites
GetSiteInfo
GetVariables
GetVariableInfo
GetValues
Locations
Variable Codes
Date Ranges
WaterML and WaterOneFlow
GetSiteInfoGetVariableInfoGetValues
WaterOneFlowWeb Service
Client
STORET
NAMNWIS
DataRepositories
Data
DataData
EXTRACTTRANSFORMLOAD
WaterML
WaterML is an XML language for communicating water dataWaterOneFlow is a set of web services based on WaterML
WaterOneFlow• Set of query functions • Returns data in WaterML
What’s coming• Integrated real time data management
– SDL (Utah State)– DataTurbine (SDSC)
• Creating a community vocabulary for parameters, and tagging your variables
• More agency data sources• Analysis of catalogs: towards spatial history of
hydrologic observations• Standards compliance• A flexible modeling framework• Integration with gridded data, and with other CI
projects: LTER, GEON, NEON, etc.• Towards digital watershed management
TaggerDemo
• Scalable, secure, programmable, versatile for different data types and vendor interfaces,developer community, with many applications written (e.g. data viewers and plug-ins), open source, high performancestreaming (10mb/s, 1000 frames/s)
• Typical scenarios:
DBMS
Monitoring and
management apps
CS loggers
NI loggers
Other proprietary or in-house
CS loggersLoggernet
RBNB DataTurbine (Ring Buffered Network Bus)
UCSD-DASHDemo
Work with us• Building a larger network of hydrologic data
servers– Install a HIS server at your site– Contribute data and services– Join development team– Create hydrologic mashups– Provide feedback
• Web sites:– www.cuahsi.org/his/ project info, downloadable