Hydrology

the stream in Watershed 01 in the HJ Andrews Experimental Forest LTER site

Wells in Watershed 01 at the Andrews Forest. The wells are used to sample the water deep in the streambed material

Instrumentation in Watershed 2: The Campbell Scientific CR-1000 data logger collects stream stage (i.e., water depth) in the flume, air temperature, water temperature, and water conductivity data. It also triggers the automated Hach/Sigma water sampler to sample, based on stage height. The water samplers are set up as proportional samplers to sample more often as the stream stage rises. The data logger keeps track of when the sampler is to collect a sample. The CR10X data loggers were installed in 1999. The Cr-10x's data loggers were replaced with CR-1000's in 2015.

Instrumentation in Watershed 2: The Campbell Scientific CR-1000 data logger collects stream stage (i.e., water depth) in the flume, air temperature, water temperature, and water conductivity data. It also triggers the automated Hach/Sigma water sampler to sample, based on stage height. The water samplers are set up as proportional samplers to sample more often as the stream stage rises. The data logger keeps track of when the sampler is to collect a sample. The CR10X data loggers were installed in 1999. The Cr-10x's data loggers were replaced with CR-1000's in 2015.

USFS Hydrologic Technician Greg Downing annotates a continuous graphic record of stream stage fluctuations taken by a Stevens Type A-71 recorder

USFS Hydrologic Technician Greg Downing, makes notations on the streamflow data collected by a Model 2, Stevens Water Monitoring Systems, Position Analog Transmitter (PAT) controlled by a Campbell Scientific CR-1000 data logger

USFS Hydrologic Technician Greg Downing, makes notations on the streamflow data collected by a Model 2, Stevens Water Monitoring Systems, Position Analog Transmitter (PAT) controlled by a Campbell Scientific CR-1000 data logger.

USFS Hydrologic Technician Greg Downing, at Lower Lookout Creek, near headquarters

Visiting researcher Nicolas Vergara reads the hook gauge to determine stream stage (water depth) in the flume

(from L to R:) Alberto Paredes, visiting researcher from Universidad Austral de Chile, Valdivia, Chile, and Arianna Goodman, graduate student OSU, converse with Greg Downing, USFS Hydrologic Technician, on the location and history of stream cross-section locations in Lookout Creek