HR: 1340h
AN: H13A-0981    [Abstracts]
TI: The Clear Creek Envirohydrologic Observatory: From Vision Toward Reality
AU: * Just, C
EM: craig-just@uiowa.edu
AF: The University of Iowa; IIHR - Hydroscience & Engineering, 100 Stanley Hydraulics Laboratory, Iowa City, IA 52242,
AU: Muste, M
EM: marian-muste@uiowa.edu
AF: The University of Iowa; IIHR - Hydroscience & Engineering, 100 Stanley Hydraulics Laboratory, Iowa City, IA 52242,
AU: Kruger, A
EM: anton-kruger@uiowa.edu
AF: The University of Iowa; IIHR - Hydroscience & Engineering, 100 Stanley Hydraulics Laboratory, Iowa City, IA 52242,
AB: As the vision of a fully-functional Clear Creek Envirohydrologic Observatory comes closer to reality, the opportunities for significant watershed science advances in the near future become more apparent. As a starting point to approaching this vision, we focused on creating a working example of cyberinfrastructure in the hydrologic and environmental sciences. The system will integrate a broad range of technologies and ideas: wired and wireless sensors, low power wireless communication, embedded microcontrollers, commodity cellular networks, the internet, unattended quality assurance, metadata, relational databases, machine-to-machine communication, interfaces to hydrologic and environmental models, feedback, and external inputs. Hardware: An accomplishment to date is "in-house" developed sensor networking electronics to compliment commercially available communications. The first of these networkable sensors are dielectric soil moisture probes that are arrayed and equipped with wireless connectivity for communications. Commercially available data logging and telemetry-enabled systems deployed at the Clear Creek testbed include a Campbell Scientific CR1000 datalogger, a Redwing 100 cellular modem, a YA Series yagi antenna, a NP12 rechargeable battery, and a BP SX20U solar panel. This networking equipment has been coupled with Hach DS5X water quality sondes, DTS-12 turbidity probes and MicroLAB nutrient analyzers. Software: Our existing data model is an Arc Hydro-based geodatabase customized with applications for extraction and population of the database with third party data. The following third party data are acquired automatically and in real time into the Arc Hydro customized database: 1) geophysical data: 10m DEM and soil grids, soils; 2) land use/land cover data; and 3) eco-hydrological: radar-based rainfall estimates, stream gage, streamlines, and water quality data. A new processing software for data analysis of Acoustic Doppler Current Profilers (ADCP) measurements has been finalized. The software package provides mean flow field and turbulence characteristics obtained by operating the ADCP at fixed points or using the moving-boat approach. Current Work: The current development work is focused on extracting and populating the Clear Creek database with in-situ measurements acquired and transmitted in real time with sensors deployed in the Clear Creek watershed.
DE: 0496 Water quality
DE: 1806 Chemistry of fresh water
DE: 1848 Monitoring networks
DE: 1879 Watershed
SC: Hydrology [H]
MN: 2007 Fall Meeting