New Oxygen/ Temperature Logger |
|
| |
PME is developing a miniature dissolved oxygen sensor and logger. The dissolved oxygen sensor is an optode that measures lifetime-based luminescence quenching of fluorescence of a thin membrane. A thermistor is integrated as well to provide temperature measurements. The DO sensor includes an internal data logger and battery that will allow measurements to be taken for months at a time. Measurements are stored on a flash drive, which when removed, can be read with a card reader on a personal computer. The entire oxygen/ temperature logger is around 20cm long and 7cm wide.
Please contact kristinhead@pme.com if you are interested. |
|
|
Additional T-Chain Sensors
|
Image provided by Turner Designs |
| |
PME is pursuing integration of the Cyclops 7 sensor to the T-Chain and LakeESP. The Cyclops 7 sensors are developed by Turner Designs. Sensors include Chlorophyll a, blue green algae, turbidity, CDOM and many more. |
|
|
GLEON 10
|
Image provided by gleon.org |
| |
PME will attend the Global Lake Ecological Observatory Network (GLEON) 10 meeting, which will be held in Torres, Brazil from May 10-14, 2010. |
|
|
ARGO Ocean-Observing Research
|
Image provided by explorations.ucsd.edu |
| |
PME supplies Scripps Institution of Oceanography with an ARGO antenna. The antenna allows the ARGO float to communicate with researchers. Information about the project. |
|
|
|
|
|
|
 |
| |
PME's SCAMP is being used by Dr. Andreas Lorke with the University of Konstanz, Germany, to measure turbulence created by fish shoals at an artificial reef in Lake Constance.
"The aim of this study is to quantify the contribution of fish swimming to water column turbulence in order to assess the ability of fish shoals to optimize their physical environment. The study combines turbulence measurements (temperature microstructure) with acoustical (scientific echo sounder), optical (video camera) and net sampling methods for fish observations." (Lorke, 2010)
Click the image at right to see a SCAMP's-eye view of fish shoals taken during a upwards profile (Windows Media Player).
Lorke, A. and W.N. Probst (2010). In situ measurements of turbulence in fish shoals. Limnology and Oceanography 55: 354-364 |
|
 |
|
| |
 |
| |
The Spanish Centre for Studies on Ports and Coasts (CEDEX) is using PME's MSCTI to study waste brine disposal resulting from desalination processes. CEDEX is interested in using the micro conductivity sensor for looking at the structure of the salinity field along the jet path for discharges along the jet path and coastline, as well as the stabilization stretch in the far field.
Brine discharge into the sea is a hyperdense effluent, which may cause a negative impact in the sea water and its ecosystems, mainly on benthic communities. The principal goals of this study are to understand brine behavior and the influences of discharge devices on these behaviors. CEDEX researchers are hoping to establish a criteria and achieve an environmentally advisable discharge design.
Fast Conductivity Sensor |
|
|
|
| |
 |
| |
The LakeESP is able to telemeter measured data to Data Turbine. Data Turbine is a Streaming Data Middleware program, which is funded by the NSF, and a part of the Open Source Data Turbine initiative. Data from the Data Turbine are transferred to the RDV (Real Time Data Viewer) program supported by Network for Earthquake Engineering Simulation.
The LakeESP is a complete buoy system for long-term water quality and meteorological monitoring. The system can telemeter data via GSM/GPRS cell phone or other methods to a user specified destination. LakeESP data can be sent to the company internal server for monitoring and management. Data Turbine will access the data and pull it from PME's internal server to be inputted into RDV. The software is easily installed and an economical (free!) solution for viewing LakESP data.
Request General LakeESP Quote
|
|
|
|
| |
 |
| |
April 2, 1995 is SCAMP's official birthday, the day the first SCAMP collected its first profile. This month SCAMP turns 15. The first SCAMP, owned and operated by Dr. Sally MacIntyre at UCSB, is still operating and collecting data. Happy Birthday SCAMP! There are now 60 SCAMPs being used around the world.
SCAMP is a portable, lightweight microstructure profiler designed to measure extremely small scale (order 1 mm) fluctuations of electrical conductivity, temperature, and chlorophyll concentration in lakes, reservoirs, estuaries and oceans. These data can be used to infer the levels of dissipation of turbulent kinetic energy; in-situ fluxes of heat and salt, and the microstructure behavior of these parameters.
SCAMP Research. |
|
|
|
|
