OregonView

The mission of OregonView is to enhance the beneficial use of remotely sensed data and derived geospatial products in Oregon through:

  • Partnerships extending across the government, commercial and academic sectors
  • Applications research
  • Education and outreach

OregonView is part of the 'AmericaView Consortium', a nationwide partnership of remote sensing scientists who support applied remote sensing research, K-12 Grade and higher STEM education, workforce development, and technology transfer. Promoting and enhancing remote sensing education within the State of Oregon is a key component of the OregonView vision.

OregonView: Members

OregonView Member Affiliation Email
Peder Nelson (ORView State Coordinator) Oregon State University, College of Earth, Ocean, and Atmospheric Sciences Peder.Nelson@oregonstate.edu
Nancee Hunter Center for Geography Education in Oregon, Portland State University nhunter@pdx.edu
Brady Callahan Oregon Parks & Recreation, GIS Program Brady.Callahan@oregon.gov
Christopher Parrish (ORView PI) Oregon State University, Civil and Construction Engineering Christopher.Parrish@oregonstate.edu
Cy Smith Oregon Geospatial Information Officer and Oregon Framework Implementation Team (FIT) Cy.Smith@oregon.gov
Jiunn-Der (Geoffrey) Duh Portland State University jduh@pdx.edu
Marcus Glass GeoTerra, Inc. MGlass@geoterra.us
Michael Wing Oregon State University, Forest Engineering, Resources, and Management Michael.Wing@OregonState.edu
Mike Renslow Renslow Mapping Services renslow76@comcast.net
Robert Kennedy Oregon State University, College of Earth, Ocean, and Atmospheric Sciences rkennedy@coas.oregonstate.edu
Eric Nielsen Institute for Natural Resources, Portland State University emn2@pdx.edu
Patti Haggerty USGS, Forest & Rangeland Ecosystem Science Center phaggerty@usgs.gov
Sarah Kolesar Oregon Sea Grant Sarah.Kolesar@oregonstate.edu
Jamon Van Den Hoek Oregon State University, College of Earth, Ocean, and Atmospheric Sciences jvandenhoek@coas.oregonstate.edu
Mark Raleigh Oregon State University, College of Earth, Ocean, and Atmospheric Sciences raleigma@oregonstate.edu
Selina Lambert Oregon State University lamberse@oregonstate.edu

Landsat 8 Klamath River Project

Water Surface Temperature Mapping on the Iron Gate Reservoir with Landsat 8 TIRS

Water temperature is a driver for a number of physical and biological processes and is known to impact fish health and water quality from organic and inorganic contaminants. With a number of different dam release scenarios having been proposed for the Klamath River, the availability of multi-temporal water surface temperature data could improve models for evaluating the impacts.

Iron Gate Reservoir

In Summer 2016, an OregonView-sponsored research team, led by OSU graduate student, Kory Kellum, tested procedures for using Landsat 8 (L8) TIRS bands and in situ data for generating multi-temporal water surface temperature data products for the Iron Gate Reservoir, impounded by the Iron Gate Dam on the Klamath River.

Procedures:

  1. Step 1: Synchronizing in situ data collection with L8 satellite overpass: On July 20, 2016, the team used infrared thermometers operated from a SOTAR inflatable cataraft (pictured) to acquire 19 water surface temperature measurements throughout the reservoir within ± 2 hours of the L8 overpass. Sample sites were positioned with RTK GPS on the boat.
  2. Step 2: Image preparation: Georeferenced L8 scenes from the July 20 overpass were downloaded from USGS Earth Explorer. The Band 10 image was clipped to the reservoir boundary in ArcGIS.
  3. Step 3: Radiometric processing: In ArcGIS Raster Calculator, L8 Band 10 DNs were converted to TOA spectral radiance values using linear transformation parameters available from USGS. These radiance values were then converted to at-satellite brightness temperatures using the thermal constants provided in the metadata file and Planck’s law. Next, at-satellite brightness temperature values were converted to water surface temperature using an assumed emissivity of 0.972.
  4. Step 4: Linear fit to reference data: The final step in the process was to perform a linear fit to the in-situ water surface temperatures obtained by the field team.

The output of this project includes a water surface temperature map for Iron Gate Reservoir on July 20, 2016 at 18:50 GMT (pictured below), which can be downloaded here.

OregonView: Education

On March 13, 2020, OregonView member, Peder Nelson, gave an outstanding presentation titled, "Community Mapping Challenge: Tree Heights using GLOBE Observer." A video of Peder's presentation can be accessed here.

Links to resources for remote sensing educators and researchers: